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Looking for top C# jobs? Explore the latest C# developer opportunities on Haystack, your go-to IT job board. Whether you're a junior coder or a seasoned software engineer, find the best C# vacancies with competitive salaries and exciting projects. Start your next career move in C# development today!
Senior .Net Software Engineer
Spectrum It Recruitment Limited
Fareham
Hybrid
Senior
£75,000
RECENTLY POSTED

Senior Software Developer - C#, ASP.Net, Cloud, Azure, REST API’s

Hybrid - 2 days onsite - Fareham / Southampton border

A high impact Senior Developer opportunity building complex solutions that have a direct impact on the safety and security of public services. This is your chance to make a real impact as a Software Developer, working on mission-critical systems in a cutting-edge environment.

This is great opportunity to join a global business, benefiting from corporate benefits, continuous professional development and an opportunity to work on large programmes of work in public and private sectors.

Skills Required:

  • 6+ years experience developing ASP.NET web applications in C# using Visual Studio/Visual Studio Code
  • Experience creating RESTful APIs and ensuring API extensibility
  • Deep experience of SaaS and Cloud deployed services (Azure ideally)
  • Azure DevOps, CI/CD
  • Experience of unit and automated testing
  • Good knowledge of SOLID principles
  • MS SQL Server

Desirable Skills:

  • Event Driven Architecture
  • Containers (docker, K8s)
  • Security best practice (OWASP top ten)

The company is market leader in their field and offer rewarding career opportunities with progression, continuous personal development and a range of global projects.

Please get in touch asap to find out more and explore the opportunity further.

Hit apply or contact

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Mid Level Backend Engineer x2
IO Associates
Bristol
Hybrid
Mid
£60,000
RECENTLY POSTED

Title: Mid Level .NET Developer

Salary: Up to £60,000 P/A

Location: Bristol- Hybrid (2- days on site)

Our client is on an exciting journey to transform the way they deliver digital products and services to millions of customers. To help them achieve this, they’re looking for a Mid-level Backend Software Engineer to join their growing Digital Development team.

You’ll play a key role in designing, building, and improving digital products using .NET Core, C#, SQL, Azure, and Kubernetes, while collaborating with like-minded engineers and contributing to a strong, supportive tech community.

?? What You’ll Do

  • Design, develop, and deliver high-quality backend solutions
  • Collaborate on technical designs and influence architectural decisions
  • Troubleshoot operational and integration issues
  • Champion coding best practices and agile principles
  • Keep up to date with emerging technologies and recommend improvements
  • Balance technical debt with business priorities

? What You’ll Need

  • Strong experience with .NET Core, C#, SQL
  • Hands-on experience with Azure Cloud and Kubernetes
  • Proficiency with engineering patterns (event-driven design, service-to-service comms, reusable services)
  • Proactive, detail-oriented, and comfortable in fast-paced environments
  • Strong communication and stakeholder engagement skills

?? What’s on Offer

  • Salary up to £60k + benefits
  • Hybrid working: 2 days onsite, 3 days remote
  • 25 days holiday + bank holidays
  • Pension scheme (up to 6.5% matched)
  • Life Assurance cover
  • Free breakdown cover from day one
  • Car salary sacrifice scheme (including EVs)
  • Discounts on retailers, tech, holidays & more
  • Participation in the ‘Owning It Together’ Colleague Share Scheme

Our client has a 2 stage interview process and for the right candidate they will interview next week!

If you’re interested in this role, or know someone who would be, then please apply and contact a. methula@ioassociates. co. uk

Senior .Net Software Engineer
Spectrum IT Recruitment
Fareham
Hybrid
Senior
£65,000 - £75,000
RECENTLY POSTED

Senior Software Developer - C#, ASP.Net, Cloud, Azure, REST API's Hybrid - 2 days onsite - Fareham / Southampton border A high impact Senior Developer opportunity building complex solutions that have a direct impact on the safety and security of public services. This is your chance to make a real impact as a Software Developer, working on mission-critical systems in a cutting-edge environment. This is great opportunity to join a global business, benefiting from corporate benefits, continuous professional development and an opportunity to work on large programmes of work in public and private sectors. Skills Required: 6+ years experience developing ASP.NET web applications in C# using Visual Studio/Visual Studio Code Experience creating RESTful APIs and ensuring API extensibility Deep experience of SaaS and Cloud deployed services (Azure ideally) Azure DevOps, CI/CD Experience of unit and automated testing Good knowledge of SOLID principles MS SQL ServerDesirable Skills: Event Driven Architecture Containers (docker, K8s) Security best practice (OWASP top ten)The company is market leader in their field and offer rewarding career opportunities with progression, continuous personal development and a range of global projects. Please get in touch asap to find out more and explore the opportunity further. Hit apply or contact (url removed) Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy

Software Development Manager
Spectrum It Recruitment Limited
Guildford
In office
Senior - Leader
£100,000
RECENTLY POSTED
+1

Lead the engineering standards behind a High-Growth UK SaaS platform

Software Development Manager

  • NestJS / NodeJS, Vue: .NET backgrounds welcome
  • Surrey / Hampshire
  • Up to £100,000 + benefits

If you’re a technically strong engineering leader who built your career on solid engineering foundations (whether in C# / .NET or modern JavaScript frameworks) and still care deeply about code quality, DevOps maturity, and scalable systems, this is a genuinely exciting opportunity.

We’re partnered with a high-growth UK SaaS technology company building data-driven digital products that help commercial teams better understand and engage their customers. As they scale their customer-facing platforms, they’re looking for an experienced Software Development Manager to shape engineering standards and lead the next phase of platform evolution.

The Tech Environment

The company’s stack has evolved. Originally built on a Microsoft / C# / .NET foundation, the platform has transitioned to a more modern stack including: NestJS / NodeJS, Vue, Redis, SQL Server, Snowflake.

They are open to candidates from a strong .NET background who have since gained experience in modern JavaScript/TypeScript ecosystems. Or who can demonstrate the adaptability and technical depth to operate in this environment.

What matters most is engineering quality, architectural thinking, and leadership credibility, not a rigid checklist of frameworks.

You’ll balance people leadership, technical direction, and delivery performance, ensuring teams build maintainable, secure, and high-performing systems.

What We’re Looking For

  • Significant experience in a SaaS or product-led environment
  • Strong previous experience as a hands-on software engineer (C#/.NET or modern JS/TS stacks)
  • Proven leadership of engineering teams
  • Experience building and operating systems at scale
  • A solid understanding of automated testing and QA practices
  • Familiarity with modern DevOps approaches
  • Strong interpersonal and collaboration skills
  • The ability to quickly pick up new tools and solve complex problems

Interested?

If you’re a strong engineering leader who wants to influence platform direction without stepping away from technical depth, this role offers real impact in a growing SaaS business.

Apply now or contact us for more details: / 02380 765 808

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Senior .NET Developer Data & Product Analytics
Newton Blue
Bristol
Hybrid
Senior
£80,000
RECENTLY POSTED
+5

Were working with a Bristol based tech co. a leading worldwide supplier of software to health insurers, with an extensive platform consisting of Core back office automation, Open API and integration suite and Digital solutions serving the insurance value chain. Currently looking to recruit a Senior .NET Developer in data a product analytics. Hybrid working role

The role will combine hands-on feature development in the core stack with a strong focus on data analysis, instrumentation, and product analytics. The successful candidate will help establish the businesses product analytics capability from the ground up, enabling the Product Manager and wider business to make data-driven decisions on roadmap, feature design, and resource allocation.

You will work as a core member of the Scrum team (3-week sprints) building and enhancing the policy and claims management platform for health insurers, while also owning the end-to-end data pipeline and analytics tooling that underpins product KPIs and user behaviour insights.

Product Development (.NET / Angular / APIs)

  • Design, develop, and maintain features across our policy and claims management product using:
    • .NET (C#), ASP.NET Core
    • Angular
    • SQL Server and MongoDB
    • RESTful APIs and NServiceBus for messaging
  • Contribute to technical design, code reviews, and shared libraries/services across teams.

Data & Analytics Capability

  • Work with the Product Manager to define meaningful product KPIs (e.g. feature adoption, task completion times, funnel conversion, retention, usage patterns) aligned to business objectives.
  • Instrument the application to capture product usage data, including:
    • Event tracking for key user actions and workflows
    • Feature flags/experiments where appropriate
    • Structured logging and telemetry
  • Design and implement data pipelines and data models to support analytics, using SQL Server and MongoDB as core sources.
  • Build and maintain dashboards and reports to track
  • Perform exploratory data analysis to surface insights

Skills & Experience required

  • Strong commercial experience developing production systems with:
    • .NET / C#
    • ASP.NET Core or equivalent web frameworks
    • Angular (or similar modern SPA framework)
    • SQL Server (schema design, complex queries, performance tuning)
    • MongoDB (or equivalent NoSQL document store)
    • RESTful APIs; NServiceBus or equivalent messaging framework.
  • Proven experience in data analysis and/or analytics engineering:
    • Comfortable writing complex SQL for reporting and analysis.
    • Experience modelling event and usage data for analytics.
    • Practical experience with dashboards and BI/reporting tools (e.g. Power BI, Tableau, Looker, or similar).
C# Developer
Datasym
Fareham
Hybrid
Junior - Mid
£60,000
RECENTLY POSTED

Asaresultofbothcontinuedexpansionandthecontinueddevelopmentofourproductportfolio,anopportunityhasarisenforadevelopertojointheDatasymDevelopmentTeam.

YouwillbejoiningamotivatedandforwardthinkingdevelopmentteamthathaveenjoyedworkingonexcitingprojectswithlatesttechnologieswhichincludediOSandbiometricdevelopmentsthatarenowinuseateveryeventatthe3ArenaDublin.OtherrecentprojectshaveincludedNHSbasedpatientmealorderingviabedsideentertainmentsystemsandiPads.BecomingadeveloperforDatasymcanbeverydiverseandexcitingwiththechancetobecomeinfluentialinthedirectionthatourproductstake.Datasymdevelopersarenotsimplyhandedaspec.listtocodeto,insteadweliketoinstilafullunderstandingofourproductsandmarketstoensurethatyourideascanflowintothecodeandbenefitoursolutions.Youwouldbedirectlyinvolvedinthefollowing:

  • Agiledevelopmentenvironment
  • Designpatterns
  • MobileApps(iOS,Android,Windows)
  • WebdevelopmentusingASP.NETandAngular
  • WorkingwithEPOSHardwareandperipherals
  • R&DProjects

Thesuccessfulcandidatewillneedtobeabletohitthegroundrunningsoinordertobeconsideredforthisroleyouwillneedtohavethefollowing:

  • Aminimumof2yearsdevelopmentexperienceworkingwithC#

Aswellashavingtherelevantexperienceitisimportantthatthesuccessfulcandidatehastheappropriatecharacteristicstofitintotheorganisation.Wearethereforelookingforsomeonewho:

  • isdynamicandenthusiastic
  • ishardworkingandmotivated
  • hasadesiretolearnandunderstandtheDatasymsoftwareproducts
  • canworkinateam
  • canthinkontheirfeettosolveaproblemandprovideappropriatesuggestionstoimprovethesoftware

MondaytoFriday-37.5hoursperweek

Fareham,Hampshire-Optionforremoteworkingwithattendanceattheoffice1dayperweekorasneeded.

BasedinFarehaminHampshire,DatasymUKLtdareamarketleadingsoftwaredevelopmenthouse,providingarangeoffrontandbackofficesoftwaresolutionstoboththeprivateandpublicsectors.Withanexistingclientportfoliothatincludesanumberofhighprofilehouseholdnames,Datasymcontinuetoexpandandattractnewclientsonadailybasiswithintheretail,hospitalityandleisuremarkets.

Digital Delivery Senior Automation Tester
Intellectual Property Office
Newport
Hybrid
Senior
£55,000
RECENTLY POSTED
+1

The IPO is a modern organisation which depends on its IT services to operate and innovate effectively. In order to provide up to date services to our customers both nationally and internationally systems need to be developed, improved and maintained. You will have the opportunity to work on the latest cutting-edge cloud technologies, use modern delivery processes and work on innovative projects some including the use of AI and ML. Working alongside experts in their fields you will have the opportunity to make valuable contributions without compromising on quality.
You will need the appetite to learn new technologies and methodologies for delivering high quality IT services. In this role you will work within a multi-disciplined squad using several technologies to build enterprise grade services. You will be expected to be proactive and take accountability for the squad assigned deliveries. The role will also require the investigation, diagnosis and fix of any system issues. A Senior Test Engineer is expected to contribute to the technical strategy for the department.
As a multi-skilled individual, you will have the opportunities to develop and mature skills in a core role but extend this to skills typically aligned to other role types. You will have a high level of input in defining which additional skills you can develop.
We are recruiting for multiple roles of which one role is slightly biased towards application testing post infrastructure changes.Working Style
This role will be carried out in-line with IPO Hybrid working arrangements where staff are currently expected to spend at least 20% of their time working onsite from one of our offices. This role is based in our Newport Office.
The requirement for attendance at an office location can vary by role so we would encourage candidates to discuss working arrangements with the recruiting manager to agree a reasonable balance between working from home and the office.
Main duties consist of but are not limited to
Technical

  • Responsible for writing, executing and maintaining functional/non-functional automated UI and API tests/suites aligned against acceptance criteria to support our continuous deployment environment
  • Be responsible for the design, coding, testing, maintenance, and documentation for robust, scalable and reusable solutions that deliver exceptional user experience using DevOps best practice
  • Proactively investigate problems and opportunities in existing processes, evaluating and communicating findings and recommendations to stakeholders
  • Work closely with software developers to reach a common understanding of the code base and test coverage at unit level
  • Work within a multi-disciplinary team to deliver highly user focused and successful digital services ensuring governance standards are adhered to.
  • Identify and manage defects, incidents, risks and issues in line with IPO standards
  • Build automated test solutions from scratch in line with IPO Test Strategy and IPO Engineering Principles
  • Contribute to the design, coding, testing and documentation of small scale to large, complex or mission critical program
  • Implement toolkits and APIs for purposes such as integration, performance optimisation, security and scalability

Behavioural

  • Understanding yourself to be a leader (and the impact of your behaviour on others in a project team focused on results)
  • Engaging Stakeholders (for mutually beneficial collaborative relationships outside of the team)
  • Work across several multi-disciplinary teams to deliver highly focused and successful digital services
  • Provide project / delivery management support when required
  • Effective management and delegation of tasks within the team
  • Applies progress over perfection principle
  • Takes full responsibility for decisions and delivers
  • Inner composure, recovers quickly from setbacks and learns from the experience
  • Highly driven & inspires others to move things along and make things happen
  • Work collaboratively with IT and stakeholders, share knowledge and expertise with your wider team, aspire to be a role model within the organisation, champion our culture of learning, development, cross-company collaboration and teamwork

Personal and Team Development

  • Drive your own training and self-development, keeping skills up to date and learning new skills
  • Take responsibility for ensuring that the team test and build activities follow agreed governance and processes
  • Promote and display the IPO and Civil Service Values
  • Guide more junior members in their personal development
  • Coach and mentor colleagues
  • Continuously improves technical knowledge and stays abreast of latest trends

Person specification
Essential Experience

  • Has been a key player in delivering technical solutions as part of large projects
  • Experience of working with cloud technologies including Azure
  • Experience of using data models
  • Experience in test documentation, such as strategies and approaches
  • Experience in testing front-end and back-end web services
  • Experienced with Agile delivery model
  • Working knowledge of Azure DevOps

Essential Technical

  • Experience with Automation tools, including MS Visual Studio with C#, Selenium, BDD, SpecFlow, MSTest, RestSharp and JavaScript
  • Working knowledge of non-functional test tools including JMeter and Azure Load Test
  • Experience with Github
  • Has a deep understanding of architectural principals with design patterns
  • Experience of writing SQL statements

How to Apply
Click the ‘Apply now’ button and complete the application form by providing the following:
Your CV
Upload an anonymised copy of your current CV. Please remove all identifying markers such as name, title, education institution etc.
Make sure it clearly shows how you meet the essential criteria listed in the Person Specification.
Behaviours
We’ll assess you against these behaviours during the selection process:

  • Developing Self and Others
  • Working Together
  • Delivering at Pace
  • Technical skills
  • We’ll assess you against these technical skills during the selection process:

At interview a presentation will be used to assess this, Further details will be provided in your invite to interview.
Benefits
Alongside your salary of £47,766, Intellectual Property Office contributes £13,837 towards you being a member of the Civil Service Defined Benefit Pension scheme. Find out what benefits a Civil Service Pension provides.

  • Unlimited Pluralsight video learning access
  • Access to Microsofts ESI training suite
  • Hybrid working with no core hours
  • Substantial support for career progression
  • 25 days annual leave moving to 30 days in annual increments
  • You will also get 8 days public leave and 1 day privilege leave

For more information about whats on offer at the Intellectual Property Office please review our IPO benefit pack attached to the bottom of this advert.
Please note that benefits may be subject to change.

.NET Developer
Eutopia Solutions Limited
Stevenage
Hybrid
Junior - Mid
£50,000
RECENTLY POSTED
+4

.NET Developer - Empowering Digital Transformation!

I’m looking for a talented .NET Developer with expertise in C#, XML, and SQL Server to join my client’s small team. Embrace a varied role covering development, support, and testing in a hybrid work environment in Stevenage, Hertfordshire. My client prioritises diversity and provides training for all team members on new technologies. Apply now to shape digital solutions and be part of their inclusive culture of growth and innovation!

Not a Front End Developer position or a “normal” Full Stack Developer role - it is broad and varied across development, support and testing which includes customer interaction.

Join this collaborative, flat-structured team where everyone’s voice is valued. This is your opportunity, as a .NET Developer, to make a meaningful impact and contribute to this data-driven journey of digital transformation in an inclusive and supportive environment. Apply today and bring your unique perspective to the team!

Desired Skills for the .NET Developer:

  • Proficiency in C#, XML and SQL Server
  • Desire for a varied role
  • Customer-focused mindset under pressure
  • Any experience of Blazor, microservices architecture / Dapper, .NET Core, XPath, XSL / XSLT, LINQ to XML (.NET), XSL-FO, NoSQL / RavenDB, CSV / Positional Files and/or ASP.NET MVC / REST, e-commerce sites, integration and/or PDF creation would be ideal but by no means essential as training will be given.

.NET Developer - Empowering Digital Transformation!

Location:Hybrid (2 days remote, 3 days Stevenage, Hertfordshire)

Salary:£35-50k (depending on experience)

Benefits:Bonus, pension, healthcare, life insurance, flexible/home working

Blue Prism Developer
Rec3 Global Ltd
Sutton
Hybrid
Senior
£60,000
RECENTLY POSTED

Global Workspace Provider

Hybrid In London office 3 times per week

£60k base + 10% bonus + company benefits

Step into the future of work.

Were partnering with the worlds #1 global workspace provider a company shaping how 8 million people across six continents work smarter, faster, and more flexibly. With 30+ years of redefining workspaces, this isnt just a job; its your chance to help design the workspace of tomorrow.

Their Automation & AI team is scaling fast. Theyve already delivered huge business impact with RPA & Intelligent Automation now they need a Blue Prism expert to take things to the next level.

What youll do

  • Own the end-to-end design, development, testing, and deployment of Blue Prism automations.
  • Build reusable objects and processes following best practices.
  • Troubleshoot, support live bots, and drive ongoing enhancements.
  • Translate business processes into slick, efficient automation solutions.
  • Collaborate with stakeholders, maintaining top-notch documentation, governance, and change management.

Who you are

  • 4+ years of hands-on Blue Prism development experience expert-level implementation skills.
  • Strong track record automating processes across multiple applications.
  • Deep understanding of exception handling, scheduling, release management, RESTful APIs, and Webservices.
  • Able to explain tech clearly to non-technical stakeholders.
  • Bonus points: Agile team experience, exposure to other RPA tools, or software engineering background (C#, C++, Java).

This is your chance to join a team that moves fast, delivers impact, and embeds automation across a global enterprise. If youre ready to take your Blue Prism skills to a company thats shaping the future of work, this is the role for you.

Senior Software Engineer C#
Luxion Group Limited
Eastleigh
Hybrid
Senior
£55,000
RECENTLY POSTED
+4
  • Title:SeniorSoftwareEngineer C#
  • Department:Procode IT
  • Location: Remote Working -Commutabledistanceof our Chandlers Ford office
  • Salary:Circa £56k + Up to 15% Discretionary Bonus Scheme
  • Sponsorship:Unfortunately, we are unable to offer sponsorship for this role

Were looking for a Senior Software Engineer who loves solving complex problems and building clean, scalable systems that make a real impact.

If you enjoy solving complex engineering challenges with modern tech and clean, scalable code, then this could be the role for you!

About us

We are a leading UK technology company delivering transformative, data-driven solutions for the energy sector and beyond. With two decades of experience, we help organisations unlock the power of smart data to improve efficiency, reduce cost to serve, and enhance customer experience.

Trusted by millions of households and major industry partners, our innovative platforms and energy data management solutions support a smarter, more sustainable future. Our passionate team of problem solvers is committed to building technology that truly makes a difference, and our promise is to put customers at the heart of everything we do.

What does this role involve?

As a Senior C# Software Engineer, youll play a pivotal role in shaping and delivering a suite of cloud-native services that power our next-generation platform. Working as part of a collaborative, product-focused engineering team, youll help drive forward both innovative new projects and the evolution of our existing systems.

Youll work across a wide variety of technical challenges, from building new microservices and developing APIs, to enhancing metering products and modernising legacy applications.Theresplenty hereto keep you engaged, learning, and continually expanding your technicalskills.

Your role will go beyond hands-on coding.Youllchampion modern engineeringpracticesandplay an active role in driving technical excellence across the team.

As a senior software engineer, youll also mentor colleagues, guide technical decisions, and carry out thoughtful code reviews that help foster a culture of learning, collaboration, and high-quality engineering.

This is a chance to join a highly important team within Procode, where your expertise truly shapes the technology, we build and the value we deliver.

Who are we looking for?

Were looking for a Senior Software Engineer who brings deep technical expertise, curiosity, and a passion for building great software.

Youll have a strong command of C#, .NET Core, and AWS, enabling you to make an immediate impact and contribute confidently to our cloud-native engineering projects. Your experience working in agile, product-focused teams meansyoullnaturallyfitinto our ways of working and help us continue delivering at pace.

Were looking for someone who is driven by continual improvement, both in deepening their technicalexpertiseand advancing their personal development.

You take pride in writing high-quality, maintainable code and are always seeking opportunities to raise the bar, refine processes, and explore smarter, more effective ways of working.

As a senior software engineer, youll also be a key part of the teams development. Your ability to collaborate effectively, support colleagues, share knowledge, and guide others will help shape a culture of learning and excellence across the department.

Ifyouresomeone who enjoys solving complex problems, cares aboutmaking a real impact, and wants to play a meaningful part in shaping modern cloud-based systems,wedlove tohear from you.

And what is the technical environment?

C#, .NET Core, API’s RESTful Services, JSON, Docker, GIT (Bitbucket), OOP, SOLID, Cloud deployment and microservices, NoSQL and Oracle (SQL PL/SQL), AWS & Azure

This role will involve on-call working on a rota basis (24/7)

To be successful in this role you will be required to pass an enhanced security vetting process.

Our employees, just like our customers come from all walks of life, and were fuelled in championing diversity, inspiring an inclusive culture, and enabling an environment where you can be your authentic self.

Benefits-availablefrom day one!

  • Bonus Scheme, made up of personal and company elements.
  • Career progression, were an expanding organisation.
  • 25 days annual leave plus bank holidays.
  • Pension scheme, company contribution at 4% of your salary when you contribute 5%.
  • Our Chandlers Ford office offers access to a free, fully equipped onsite gym, along with showers and changing facilities.
  • The opportunity to win tickets to major outdoor events including, gigs and shows at arenas around the UK.
  • We offer an EV car scheme. Qualifying terms and conditions apply.
  • A health care scheme that includes dental, eye care, treatments, and diagnostics health consultations.
  • Death in service we pay three times your annual salary to your designated next of kin, giving them peace of mind should you sadly pass away during service.
  • Employee Assistance Programme with access to counselling support, legal and financial advice 24/7 365 days a year, as well as a GP line and Your Care.
  • We also offer all our staff a paid volunteering day every year.Plus,the chance to be involved in various fund-raising opportunities.

The Luxion Group comprises of the following companies Luxion Group Ltd, Utilita Energy Ltd, Luxion Sales Ltd, Utilita Field Services Ltd, Procode Technology Ltd and Canary Care Global Ltd.

Head of Engineering
techUK
London
Hybrid
Leader
£52,000 - £64,000
RECENTLY POSTED

Job Title: Head of Engineering

Location: London / Hybrid

Salary: £52,000 - £64,000 per annum based upon experience plus discretionary bonus and comprehensive benefits

Job Type: Full Time, Permanent

About The Role:

The Head of Engineering is responsible for designing, building, and maintaining techUK’s core digital systems and engineering capability.

This is a hands-on technical leadership role that combines software development, platform architecture, and business systems integration. The role will lead the development of scalable systems across the Microsoft ecosystem, including Azure, Dynamics 365, and Power BI, while introducing AI-driven workflows and automation to improve organisational efficiency.

Working closely with teams across the organisation, the Head of Engineering will translate business needs into practical technical solutions and ensure systems are well integrated across the organisation’s digital environment.

The organisation’s website operates on a headless architecture using Contentful CMS, with the front-end hosted on Vercel, and integrates with CRM, analytics, and internal systems through API-driven services.

Operating within a small engineering team, the Head of Engineering will remain actively involved in development, prototyping, and technical implementation while shaping the organisation’s engineering capability and digital architecture.

This role reports into the Chief Technology and Transformation Officer and will have 1-2 direct reports.

Key Responsibilities

Platform Development & Systems Architecture

* Design, build, and maintain techUK’s core digital systems across the Microsoft ecosystem, including Azure-hosted services, integrations with Dynamics 365, and supporting data infrastructure.

Website & Digital Platform Engineering

* Provide technical leadership for the organisation’s digital platforms, including the headless website architecture built on Contentful and hosted via Vercel, ensuring reliable integration with CRM, analytics, and other internal systems.

Data Architecture & Business Intelligence

* Develop and maintain reliable data flows between organisational systems, supporting accurate reporting and insight generation through platforms such as Power BI and helping establish a clear single source of truth for organisational data.

Systems Integration & APIs

* Design and implement API-driven integrations between core systems including CRM, website platforms, marketing tools, analytics environments, and internal databases, ensuring systems operate as a connected digital ecosystem.

AI, Automation & Rapid Prototyping

* Develop and implement AI-enabled workflows and automation that improve operational efficiency and unlock organisational insight. Rapidly prototype new tools and workflows to test ideas and deliver practical solutions across the business.

Engineering Leadership

* Establish and maintain best practice in software development, platform architecture, security, and DevOps practices while providing hands-on engineering leadership within a small team.

Skills, Knowledge and Expertise:

Essential Knowledge and Experience:

* Strong hands-on experience in software development and platform engineering.

* Experience working within the Microsoft technology ecosystem, including:

* Azure cloud services

* Dynamics 365

* Power BI

* Microsoft Graph APIs

* Azure Functions or serverless architectures

* Power Platform or related automation tools

* Experience building API-driven integrations between enterprise platforms including CRM systems, web platforms, marketing systems, and analytics environments.

* Strong programming capability in languages such as Python, JavaScript/TypeScript, or C#.

* Experience developing integrations, automation pipelines, and backend services that support operational workflows.

* Experience working with modern web architectures, ideally including headless CMS platforms.

* Experience operating in small technical teams where individuals remain hands-on in engineering work.

* Line management experience is essential.

* Ability to translate business requirements into technical solutions and deliver working systems.

Desired Knowledge and Experience:

* Experience working with Contentful CMS and Vercel hosting environments.

* Experience implementing AI-driven tools, automation workflows, or LLM-based systems.

* Experience working with data platforms, analytics environments, or business intelligence systems.

* Familiarity with DevOps and CI/CD practices, including version control platforms such as GitHub.

Additional Information:

This is a full time role based out of techUK’s London offices, however techUK operates a flexible working policy.

This role profile is a guide to the work that is required but does not form part of any contract of employment and may change from time to time to reflect changing circumstances.

The successful candidate must have permission to work in the UK prior to the commencement of employment.

Please click APPLY to be redirected to our website to apply for this role.

Candidates with experience of: Lead Software Engineer, Systems Developer, Application Developer, HTML, WordPress, Head of Software Engineering, IT Database Developer, Software Integration may also be considered for this role

Senior .Net Software Engineer
Spectrum It Recruitment Limited
Fareham
Hybrid
Senior
£75,000
RECENTLY POSTED

Senior Software Developer - C#, ASP.Net, Cloud, Azure, REST API’s

Hybrid - 2 days onsite - Fareham / Southampton border

A high impact Senior Developer opportunity building complex solutions that have a direct impact on the safety and security of public services. This is your chance to make a real impact as a Software Developer, working on mission-critical systems in a cutting-edge environment.

This is great opportunity to join a global business, benefiting from corporate benefits, continuous professional development and an opportunity to work on large programmes of work in public and private sectors.

Skills Required:

6+ years experience developing ASP.NET web applications in C# using Visual Studio/Visual Studio Code

Experience creating RESTful APIs and ensuring API extensibility

Deep experience of SaaS and Cloud deployed services (Azure ideally)

Azure DevOps, CI/CD

Experience of unit and automated testing

Good knowledge of SOLID principles

MS SQL Server

Desirable Skills:

Event Driven Architecture

Containers (docker, K8s)

Security best practice (OWASP top ten)

The company is market leader in their field and offer rewarding career opportunities with progression, continuous personal development and a range of global projects.

Please get in touch asap to find out more and explore the opportunity further.

Hit apply or contact

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

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.Net Software Developer
IO Associates
Brackley
Hybrid
Mid - Senior
£350/day - £400/day
RECENTLY POSTED

.Net Developer

2 days a week onsite in Banbury

£350pd to £400pd - Inside IR35

8 month contract

Our client are looking for an experienced Developer to join them on a contract basis

They are a household name, operating at the forefront of the IT and engineering sectors, specialising in the development of advanced engineering software and digital tools.

Due to ongoing strategic initiatives and growth in their engineering software capabilities, our Client is seeking a highly skilled Software Developer with expertise in .NET technologies. This contract position offers an exciting opportunity to contribute to the design and development of robust, maintainable software solutions that support engineering workflows.

We are looking for:

Proven experience in designing and developing software using .NET and C#.

Proficiency in building RESTful APIs and microservices deployed via container orchestration tools like Kubernetes.

Strong understanding of SQL and experience working with relational databases such as MS SQL Server or Postgres.

Familiarity with modern software development methodologies within an Agile environment.

Practical knowledge of DevOps practices, including CI/CD pipelines and Azure DevOps.

Excellent problem-solving skills and attention to detail.

Effective communication skills, both technical and non-technical.

Experience with Python would be highly beneficial

Interested to hear more? I would be more than happy to discuss the role in more detail, along with any other opportunities you may be open to!

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Software Engineer (C++)
Certain Advantage
London
Hybrid
Mid - Senior
Private salary
RECENTLY POSTED

C++ Engineer Certain Advantage are hiring for a C++ Engineer based in London. This role is on an initial contract till the end of the year and is hybrid. The company We’re working with an organisation that operates globally, helping power homes, transport, and industries with the energy they depend on every day. The role: Implement solutions using the provided exchange SDKs in different languages such as C++, Rust, Python, Typescript Write software that communicates with exchanges through their APIs, receiving market data and sending orders over the network in different protocols, such as FIX, Websocket or HTTP requests Optimize exchange communication through kernel bypass, optimizing TLS or the connection handling to an exchange Implement trading algorithms based on requirements provided by traders and quants Acquire and develop the necessary trading knowledge to successfully translate the requirements into actual software implementation Continuously improve the stability, reliability, and performance of the trading engine Enhance monitoring and observability in collaboration with the Trading Operations team The individual: C++ software development experience within the financial industry Solid understanding of parallel, asynchronous, and multithreaded programming to build distributed systems Good knowledge of algorithms and data structures Understanding of trading lifecycle, including order capture & execution, allocation workflow, settlement, and compliance requirements Must have strong technical skills in scripting, Python, C#, SQL or other programming languages Proactive system monitoring and troubleshooting, owning reliability improvements and ensuring their successful delivery Does this sound like your next career move? Apply today. Working with Certain Advantage We go the extra mile to find the best people for the job. If you’re hunting for a role where you can make an impact and grow your career, we’ll work with you to find it. We work with businesses across the UK to find the best people in Finance, Marketing, IT and Engineering. If this job isn’t for you, head to (url removed) and register for job alerts and career guidance tips

Senior Full-Stack Developer
hireful
Buckinghamshire
Hybrid
Senior
£55,000 - £60,000
RECENTLY POSTED

Are you a Senior Full Stack Developer who fancies redefining operational excellence across higher education, conference and events applications? You ll be joining a company trusted by more than 350 institutions worldwide and backed by 25 years of experience. You ll be joining a people-first, purpose-driven business where ideas are valued, growth is supported and impact is truly visible. We re looking for a Senior Full Stack Developer with outstanding front-end expertise and at least some back end .Net capabilities to help shape the next chapter of our platform. You ll design and deliver accessible, secure and high-quality web solutions, working closely with clients, project managers and fellow developers. Role: Senior Full Stack Web Developer, Senior Web Developer, Senior Developer, Senior Full-Stack Developer, Senior Front End Developer, Full Stack Developer, Senior Software Engineer, Senior Full Stack Engineer Location: Hybrid - at least 1 day a fortnight in the office in Milton Keynes Salary: £60k base + Bonus and great benefits. You ll bring deep knowledge of HTML, CSS and JavaScript, a proven track record of building User interfaces, solid SQL experience and confidence with server-side development in C# or similar. You care about clean code, security, performance and best practice, and you enjoy mentoring others through code reviews and collaboration. Experience with legacy .NET, and modern APIs, component-based frameworks or automated testing is a bonus. Any experience of modern front end frameworks e.g. React would be great. In return, you ll enjoy a generous benefits package, flexible support for wellbeing and development, a welcoming office culture and the chance to work on meaningful products used around the world. Sound good? CLICK APPLY and send through a copy of your CV.

Software Development Lead Bank
Huxley Associates
London
Hybrid
Senior
£70,000 - £80,000
RECENTLY POSTED

Software Development Lead Banking London

This is a new and exclusive opportunity for a Software Development Lead to join this thriving investment Bank as they expand their software development team

Role details

  • Title Software Development Lead
  • Employer: investment Banking
  • Location: London city Liverpool street station and home working hybrid 50/50%
  • Permanent role Salary range: (Apply online only)k
  • Role requirements: team management, software development strong prior background in development in any of the core technologies: C#, .Net, Java, SQL

This is a great opportunity for a team leader to lead a brilliant software development team. You will be leading a team of developments. The technical stack is C#, .Net, Java, SQL

This role will report into the Head of Development within the Post trade technology area of the bank.

This role is focused on People management and team management

Role requirements

  • Team leading and team management experience
  • Development background - strong prior background in development in any of the core technologies: C#, .Net, Java, SQL

For more information and the chance to be considered, please do send through a CV

Good luck

To find out more about Huxley, please visit (url removed)

Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy Registered office 8 Bishopsgate, London, EC2N 4BQ, United Kingdom Partnership Number OC(phone number removed) England and Wales

Lead Test Automation Engineer - Remote £80,000
SR2
Reading
Fully remote
Senior
£75,000 - £80,000
RECENTLY POSTED

I'm working with a small boutique Consultancy who are looking to hire a highly technical experienced Senior/Lead Automation Engineer. You'll be joining a small passionate team that build software that sits at the heart of major organisations and helps them meet complex regulatory demands. The team are remote first so you can be based anywhere in the UK for this role. They have one more Junior Tester and are now looking for a experienced Senior/ Lead QA experienced with automation to be the senior figure within the team. They want someone who can build a proper QA strategy and help them get better processes in place, collaborate with DevOps on CI/CD and QA practices, and drive staged, holistic improvements and also support and mentor their more Junior QA. You'll be shaping quality from the very start, challenging requirements, spotting risks early, and ensuring what gets released is robust, secure, and built to last. This role also has a consultative edge. You'll work closely with some of their larger enterprise clients, helping define sensible test strategies that fit their systems and business goals. You'll review code, guide teams on quality best practice, and communicate clearly with both technical and non technical stakeholders. Ideally you'll have experience testing complex platforms, particularly in regulated or high risk environments such as finance, compliance, or similar enterprise domains etc where its critical to get things right. along with strong automation skills in tools like Playwright/ Cypress Typescript and ideally C#. You'll work closely with their end clients and design and maintain automated test frameworks across modern web applications, covering Angular front ends and .NET back ends and will actively review both internal team code and external client-side code to ensure adherence to best practices, security protocols, and performance benchmarks. There's a strong focus on automation and API testing, so you should be comfortable building frameworks , along with experience of testing REST Api's and familiarity with cloud environments such as Azure and CI/CD pipelines. You'll be joining a small, high calibre team that values thoughtful engineering, respectful collaboration, and building things that genuinely matter. If you enjoy solving hard problems, influencing how software is built, and working remotely with talented people, then I would love to hear from you. Salary is up to £80,000. If you'd like to hear more please reply below to Sam Miller at SR2. Socially Responsible Recruitment

Senior Software Engineer (£75k + benefits)
Morson Edge
Manchester
Hybrid
Senior
£75,000
RECENTLY POSTED

Great opportunity for a Senior Software Engineer to join a private equity backed tech company in Manchester as they scale in 2026.

You’d join a product-based squad within a larger engineering department and would be given the opportunity to be involved in all aspects of the systems you work on, from design through to deployment and supporting them in production.

Each squad decides the methodologies and practices they use, as the business has created an experimental culture, following a build, measure and learn approach to get quick feedback and deliver valuable increments.

The existing group are very open minded; they value teamwork over individual heroics and focus on engineering best practice like TDD, CI/CD and Pair Programming.

Skills:

C#, .NET, React

REST APIs, Microservices, Event Driven Systems

AWS, Terraform, Docker

CI/CD, TDD, Pair Programming

The money is good too – up to £75k plus benefits including hybrid working (2 days per week in Manchester).

If you’re interested in this opportunity and would like to know more, please apply through this advert and I will contact you ASAP.

InterQuest Group is acting as an employment agency for this vacancy. InterQuest Group is an equal opportunities employer and we welcome applications from all suitably qualified persons regardless of age, disability, gender, religion/belief, race, marriage, civil partnership, pregnancy, maternity, sex or sexual orientation. Please make us aware if you require any reasonable adjustments throughout the recruitment process.

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Azure DevOps Engineer
VIQU IT Recruitment
Leicester
Hybrid
Mid - Senior
£400/day - £500/day
RECENTLY POSTED
+2

Azure DevOps Engineer – Hybrid / East Midlands – Contract – Outside IR35

VIQU have partnered with a global organisation based in the East Midlands who are seeking an experienced Azure DevOps Engineer to multiple ongoing and upcoming cloud migration initiatives.

Please note that this is a hybrid role, and you will be required to work 3 days per week onsite in the East Midlands.

Role Summary:

The successful Azure DevOps Engineer will play a key role in supporting the migration from on-premise infrastructure to a fully cloud-driven environment.

You will drive automation across environments, support development and testing teams, strengthen CI/CD capabilities, and ensure environments, data, and deployments operate smoothly, securely, and efficiently. This role requires someone who is comfortable working in fast-paced, cross-functional teams.

Key Skills & Experience Required:

Strong hands-on experience working with Azure DevOps.

Experience with Azure cloud infrastructure and on-premise to cloud migration projects.

Infrastructure as Code: Terraform.

Containerisation & Orchestration: Docker, Kubernetes, AKS.

Strong pipeline automation and scripting skills – CI/CD (YAML).

Experience with Azure DevOps Artifacts, Boards, Repositories.

Understanding of DevOps principles, Agile methodologies, and best practices.

Awareness or exposure to C#, .NET Framework, .NET Core.

Source control management (Git).

Microservices architecture.

Role details:

Job role: Azure DevOps Engineer

Job type: Contract

Duration: 3 months’ initial contract

Rate: £400 - £500 per day

IR35 status: Outside IR35

Location: Hybrid – 3 days per week onsite in East Midlands

Apply now for the Azure DevOps Engineer role to speak with VIQU IT in confidence. Or reach out to Suzie Stone via the VIQU IT website.

Do you know someone great? We’ll thank you with up to £1,000 if your referral is successful (terms apply).

For more exciting roles and opportunities like this, please follow us on LinkedIn @VIQU IT Recruitment.

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Software Engineer
Rise Technical Recruitment
Somerset
Hybrid
Mid - Senior
£38,000 - £45,000
RECENTLY POSTED

Taunton - Hybrid (2 days on site P/W) £38,000 - £45,000 + Bonus + Training + Progression + Private Pension + Holiday Buying Options + Autonomy Are you an experienced Software Engineer looking to work across modern microservices and established WPF applications while influencing key architectural decisions? You will design, develop and maintain software used in demanding industrial environments, working with C#, WPF, front-end languages such as Vue.JS, Angular or React. You will collaborate with electrical and systems engineers, contribute to system architecture and support both new platform development and legacy product improvement. This role offers strong technical variety, career progression and a supportive engineering culture. You should bring solid commercial experience, excellent understanding of SOLID principles, and confidence contributing to design discussions. Exposure to industrial systems or electronics is beneficial. This role is ideal for someone who enjoys autonomy: you will be given open technical problems, trusted to investigate and propose solutions, and involved across the full project lifecycle, from concept through to delivery. You will work in an agile environment, alongside testers and engineers, on projects ranging from a couple of months to large programmes of 18 months or more. The Role: Develop desktop and web applications using C#, WPF and Vue.js Contribute to microservice architecture and Azure-based modernisation Support and improve legacy systems Collaborate with multidisciplinary engineers Participate in sprints, reviews and CI/CD processesThe Person: Experienced Software Engineer with strong design skills Proficient in C#, WPF and modern software practices Collaborative and confident in technical discussions Electronic or industrial knowledge is an advantage Reference number: BBBH(phone number removed) Rise Technical Recruitment Ltd acts an employment agency for permanent roles and an employment business for temporary roles. The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set and will be decided by our client, the employer. Rise are not responsible or liable for any hiring decisions made by the end client. We are an equal opportunities company and welcome applications from all suitable candidates

Lead .Net Software Developer
Spectrum It Recruitment Limited
City of London
Hybrid
Senior
£100,000
RECENTLY POSTED
+1

Senior .Net Developer | Full Stack Engineer - Build the Future of Data Lineage & AI

London (Hybrid) | High -I mpact SaaS Engineering Role

C#, ASP.Net Core, TypeScript, React, Computer Science

Company Size: Approx. 60

Salary Range : £75k-£95k + equity

Spectrum Recruitment is partnered with a fast-growing, venture-backed SaaS company helping organisations understand and control complex data flows. Their platform enables enterprises to model, visualise, and manage data lineage, bringing clarity to some of the most challenging problems in modern data environments.

Why are they hiring?

Product Demand | Scale | Increasing team capabilities

As demand for the product increases and market interest builds the team needs greater experience and capabilities for scale. The current team is primarily made up of very clever graduates from ICL led by an experienced Head of Tech. They are looking for Developers to help the team evolve, add rigor and depth of knowledge to take the team and company to the next level.

Why This Role Stands Out

Work on genuinely complex engineering problems involving data modelling, visualisation, and emerging AI capabilities.

Own meaningful product features in a small, highly skilled engineering team.

Use a modern technology stack with freedom to innovate and influence technical direction.

Join a collaborative culture with R&D time, knowledge sharing, and hackathons.

Technology

C#, .NET Core, ASP.NET Core, TypeScript, React, cloud-hosted SaaS architecture, and exposure to AI-assisted development and data visualisation.

Who This Would Suit

Established, Senior Engineers who enjoy solving complex problems, care about clean architecture and UX, and want a role where their work has visible impact on both product and customers.

A degree in Computer Science or Software Engineering is a must.

Environment & Culture

Hybrid working (usually two days per week in a central London office) alongside a collaborative and ambitious engineering team. A friendly, sociable culture where people genuinely enjoy working together to solve complex challenges and have fun while doing it. You’ll also have clear opportunities to learn, develop, and influence the future direction of the technology and team.

Interested?

If you’re an experienced developer looking for a technically interesting role where your work genuinely matters, this is worth a conversation.

Hit apply or contact for more info.

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

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Frequently asked questions
Haystack features a wide variety of C# job opportunities, including positions for junior developers, senior software engineers, full-stack developers, backend developers, and specialized roles in areas like gaming, finance, and enterprise software.
Most C# jobs on Haystack require knowledge of the .NET framework or .NET Core, as they are commonly used alongside C#. However, job requirements vary, so be sure to read each posting carefully.
Yes, Haystack offers numerous remote C# job listings. You can filter your job search to show remote opportunities specifically.
To improve your chances, ensure your resume highlights your C# projects and relevant experience, familiarize yourself with common frameworks like ASP.NET, LINQ, and Entity Framework, contribute to open-source C# projects, and prepare for technical interviews focusing on C# concepts and problem-solving.
Yes, job seekers can create profiles, search, and apply to C# jobs on Haystack completely free of charge.