Make yourself visible and let companies apply to you.
Roles
C# Jobs
Overview
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!
Software Development Manager
Spectrum IT Recruitment
Multiple locations
Hybrid
Senior - Leader
£90,000 - £100,000
RECENTLY POSTED

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

Software Development Manager

  • NestJS / NodeJS, Vue: .NET backgrounds welcome
  • Manchester (Hybrid: 1 day per week onsite)
  • 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: (url removed)

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

Senior Software Engineer
Oscar Associates Limited
Oxford
Hybrid
Senior
£60,000
RECENTLY POSTED
+1

Senior Software Engineer - Oxford (Hybrid)

Salary: £60k + Annual Bonus

We have partnered exclusively with a market-leading Manufacturing company who have an exciting opportunity for a Senior Software Engineer to join their growing team.

This role will be focused on the design, development, and maintenance of their software products within a .NET environment. Successful candidates for this position must have a minimum of 5+ years’ experience developing with .NET, C#, XAML, Avalonia, as well as experience with web client-server application development, and UI development.

Key Responsibilities:

  • Work on cross-platform projects including cloud-based, RESTful APIs, and client/server-based solutions.
  • Plan, track, and manage software projects - working both independently and collaboratively within Agile teams to meet project objectives and deadlines.
  • Design, develop, test, and maintain applications and GUI software across the full software development lifecycle.
  • Capture and interpret customer and user requirements to deliver high-quality, reliable software solutions.
  • Develop and maintain real-time and post-process data analysis software.
  • Apply relevant expertise in order to create robust, scalable, and maintainable code; whilst adhering to company policies and processes.
  • Develop and maintain software architecture using best practices such as multi-threading, design patterns, and SOLID principles.
  • Specify, install, and maintain development tools and technologies (e.g., GitLab DevOps, IDEs, testing frameworks).
  • Investigate and resolve software issues or feature requests raised by internal teams, representatives, or customers.
  • Contribute to R&D initiatives by identifying opportunities for innovation and improvement in existing or new software products.
  • Provide guidance, mentoring, and technical support to junior team members.

Essential Skills:

  • .NET / .NET Core Frameworks
  • C# and XAML
  • Avalonia
  • Web client-server application development
  • Experience developing user interfaces, data visualisation tools, and interactive software.
  • Strong communication and teamwork, able to work effectively across technical and non-technical teams.
  • Minimum of 2:1 degree in programming or computer science or equivalent industry experience required.

Nice to haves:

  • Git (GitLab DevOps)
  • Knowledge of communication protocols
  • AWS
  • Experience in the Manufacturing or Medical Industry
  • Background in Electronics Engineering

Benefits:

  • Competitive base salary (DOE)
  • Annual profit share bonus
  • 27 days holiday + bank holidays
  • 5% employee and 5% employer contributions via salary sacrifice pension scheme
  • Flexi hours
  • Private Medical Insurance
  • EV Car Scheme
  • Learning & Development training budget
  • Smart casual dress code

If you’re an experienced Software Engineer skilled with C# .NET and you are looking to join a market-leading company offering a great benefits package, this could be the perfect opportunity for you.

Please apply to be immediately considered.

Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy.

To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.

C# Software Engineer X 3
Adria Solutions
Manchester
In office
Mid - Senior
£60,000

C# Software Engineer X 3 Manchester As a C# Software Engineer , youll design and deliver high-quality, scalable solutions across our clients platform. Youll take ownership of key features, contribute to architectural decisions, and support a culture of technical excellence.

What Youll Do Develop, enhance, and support high-performing, scalable solutions built in C#

Partner closely with Product and fellow engineers to turn business needs into effective technical implementations

Play an active role in shaping system design and influencing the future technical roadmap

Promote high standards across development, including clean code, thorough testing, and clear documentation

Conduct peer reviews, troubleshoot complex issues, and proactively address legacy or inefficient code

Provide guidance and knowledge-sharing to help other engineers grow and succeed

Skills and Experience: 3 years+ commercial experience in software development

Solid hands-on expertise with C# and TypeScript , applying modern engineering standards and practices

Demonstrated track record of building and deploying reliable, scalable systems in live environments

Familiarity with automated build, deployment, and release processes within a CI/CD setup

Analytical mindset with the ability to solve complex problems and communicate solutions clearly

Thrives in a fast-moving, agile team where collaboration and shared ownership are key

Benefits Private medical & dental insurance

Life assurance

Employee discounts

Regular team events

Interested? Please Apply Now! We are an equal opportunity employer and value diversity.

C# Software Engineer X 3 Manchester

TPBN1_UKTJ

Software Developer
Syntax Consultancy Limited
Derby
Hybrid
Mid - Senior
£50,000 - £60,000
+4

Derby (Hybrid)

Permanent (Full-Time)

to £50k-£60k (DOE) + Benefits

Syntax is looking for a talented Software Developer with strong C#, .NET Framework, .NET Core, MVC, and JavaScript experience for a permanent career opportunity in Derby (Hybrid).

Syntax Consultancy is an independently owned IT services and recruitment business with 30+ years’ experience of delivering IT solutions for an array of Public and Private sector organisations.

A chance to join our dynamic development team at our Derby office (Pride Park), including hybrid working options. Start ideally by April 2026.

Key skills, experience + tasks include:

Software Developer with a strong foundation in C#, .NET Framework, and .NET Core, along with proficiency in MVC, Entity Framework, JavaScript, jQuery, CSS, HTML, MS SQL, TFS + DevOps practices.

Technical Expertise: C#, .NET Framework, .NET Core, MVC, Entity Framework, JavaScript, jQuery, CSS, HTML, MSSQL, TFS, DevOps and SQL Server databases.

Working across all phases of the software development lifecycle (SDLC), including requirements analysis, design, coding, testing, deployment + maintenance.

Developing high-quality, scalable and maintainable code that meets project requirements and industry standards.

Troubleshooting + debugging software issues on existing systems and providing timely resolutions.

Performing code reviews, providing constructive feedback + mentoring junior team members.

Advantageous: React, Microservices, RESTful APIs, GraphQ, Azure Cloud Services, payment gateways, financial technologies, IT related Degree.

Benefits: £50-60k Salary (DOE) + Hybrid Working + Pension + Generous Annual Leave (plus BHs) + Death in Service + Health Benefits + Training & Career Development + Annual Pay Reviews.

Why work with us

Our People - we have a diverse team of people at Syntax with a mix of personalities, genders, ages and ethnic backgrounds. We welcome people from all walks of life and we recruit on merit.

Flexibility - we operate a flexible approach to working, our staff have the option to work from home on a hybrid basis at agreed times.

Job Security - we are an established, healthy business with a 30+ year proven track record and low staff turnover. Many of our key people have been with us for 10+ years.

Work Environment - a friendly and positive working environment. We treat people as grown-ups and trust them to deliver what’s expected of them.

Convenience - we have free on-site parking our office is easily accessible, located just outside Derby City Centre. Easily commutable by car or public transport.

Values - we are a team of committed professionals with shared values and a strong team ethos. We work hard to embody our core values of: service, empathy, energy, ownership, going the extra mile, and fun.

TPBN1_UKTJ

Senior Software Developer
Spectrum It Recruitment Limited
Southampton
Hybrid
Senior
£70,000
+4

Software Developer

C#, Asp.Net, Azure, REST API’s

Hybrid - 2 days per week in the Southampton Office

£65,000 - £70,000

Join a global tech leader where innovation, high performance, and career growth are at the heart of everything they do. 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:

Solid experience developing ASP.NET web applications in C# using Visual Studio/Visual Studio Code

Experience creating RESTful APIs and ensuring API extensibility

Cloud experience (Azure, AWS)

Azure DevOps

Experience of unit and automated testing using tools such as NUnit, Jasmine and Selenium

Good knowledge of SOLID principles

Desirable Skills:

Containers (docker, K8s)

Security best practice (OWASP top ten)

OpenIDConnect/Identity server

Micro service architecture

MS SQL Server

Azure DevOps, TeamCity

Infrastructure as Code (Bicep, ARM templates, Terraform)

Please apply now or contact for more info

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

TPBN1_UKTJ

Senior Software Engineer
New Resource Group
Melksham
In office
Senior
£60,000 - £65,000

Job Title: Senior Software Engineer Location: Melksham, UK Overview of the Role An established engineering organisation specialising in life-critical protection and underwater systems is seeking a Senior Software Engineer to join its growing team in Melksham. This role is responsible for the design, development, and verification of software for advanced underwater electronic systems. You will contribute across the full engineering lifecycle and support the successful delivery of fully integrated, safety-related control and HMI-based systems. In addition to new product introduction (NPI) activities, you will help drive continuous improvement in software engineering processes and support ongoing product evolution. Working within a collaborative hardware and software environment, you will play a key role in system analysis, modelling, development, integration, testing, qualification, and reliability enhancement. This position offers the opportunity to influence technical direction, improve engineering standards, and contribute to complex systems designed for demanding operational environments. Key Responsibilities New Product Introduction (NPI): \* Contribute the software engineering perspective to the specification, design, and delivery of advanced underwater electronic systems. \* Support system architecture definition, integration, and validation activities within a multidisciplinary team. Sustaining Engineering: \* Deliver ongoing software maintenance and support across the existing product portfolio as the customer base expands. \* Lead proactive continuous improvement initiatives, including issue triage, root cause analysis, and collaboration with cross-functional engineering teams. Process & Technical Leadership: \* Drive value-based improvements to software engineering processes to enhance quality, reduce cost, and improve consistency. \* Prepare for and participate in formal technical reviews (e.g., requirements, preliminary design, and critical design reviews). \* Support system-level troubleshooting and failure investigations alongside engineers and technicians. \* Contribute to planning, estimation, and progress reporting to ensure predictable delivery. Essential Requirements \* Bachelor’s or Master’s degree in Software Engineering or a related discipline. \* Experience across the full engineering lifecycle, including requirements capture, design, verification, traceability, and impact analysis. \* Knowledge of risk, issue, and opportunity management within an engineering environment. \* Proficiency in C++, C, C#, CMake, and development environments such as Visual Studio / VS Code. \* Experience working with embedded hardware abstraction layers (HAL). \* Strong grounding in continuous integration (CI), unit testing, static analysis, and Hardware-in-the-Loop (HIL) testing. \* Strong documentation and communication skills. \* Demonstrated ability in planning, estimating, and progress monitoring. \* Ability to obtain UK Security Clearance (SC). Desirable Experience \* Experience within embedded microcontroller ecosystems (e.g., STM32, PIC32, PIC24). \* Familiarity with embedded development environments and toolchains. \* Experience with version control and CI/CD platforms (e.g., Git-based workflows). \* Knowledge of requirements and collaboration tools (e.g., Jira, Confluence). \* Experience with code quality and documentation tools (e.g., static analysis platforms, automated documentation generators). \* Low-power embedded design experience. \* Safety-related software development within regulated industries. \* Familiarity with Model-Based Systems Engineering (MBSE), SysML, or UML. Experience Profile While a degree in Software Engineering (or a related field) is expected, particular emphasis will be placed on demonstrable experience delivering embedded software for safety-related systems in real-world applications

Software Engineer (C#, C++)
Endeavour Recruitment
Stevenage
Hybrid
Mid - Senior
£60/hour - £65/hour
+1

Software Engineer (C#, C++) (5 OPENINGS) JOB LOCATION: Stevenage / Bristol SECURITY CLEARANCE LEVEL - SC Start (BPSS- To start, Dependent on Programme) UKEO DURATION: 12+ Months Minimum (Extension possibility- Yes, Dependent on Performance) WORK PATTERN: Work structure- 3-4 days on site & the rest remote (some programmes require fully onsite). First 3 months full time on site regardless. Overtime: Yes (Project dependant) PAY RATE: £60 - £65 Per Hour Umbrella Inside IR35 Essential Skillset & Tools essential: desktop C# desired: Experience of hardware integration Overview: WSSE are integral in the development of weapon systems and system architectures, and as a result we have developed a capability supporting developments across the full product life cycle. The team integrate real products, models and synthetic environments to provide visualisations, demonstrations, verification & validation as well as training capability and support. Responsibilities: • The role support the development of the worlds most advanced defence systems from the initial concept all the way through to in service support and training, using a range of simulation technologies, including digital twins and emulators. • Working with Project Leads and Simulation Architects to design and develop simulation components as an end to end representation of a weapon System in a synthetic environment using C#, C++ and integration simulations, supporting a number of industry standards. • You will work as part of a heterogeneous agile development team, made up of mixed discipline engineers working in synergy to develop simulations and representations of real equipment. • Our approach to software development includes o Configuration control o Continuous Integration o Continuous Delivery or Deployment. o Unit testing and test driven development. Skillset/Experience Required: • Proficient in C# / C++ • Microsoft Visual Studio, Eclipse, • Ability to work from high level/system view into technical detail. • Excellent verbal, presentation and written communication skills • Knowledge of using Microsoft Windows and Linux operating systems Non-essential: • Distributed simulation standards / Protocols (DIS, HLA, DDS) and web services development (JavaScript, Node JS or similar) Military Communications, • Datalinks and Interfaces such as 1553/1760 and Ethernet TCP/IP • Practical knowledge of System integration principles and processes

Technical Architect
Michael Page
Berkshire
Hybrid
Senior - Leader
£90,000 - £100,000

Our client is a Technology SaaS business with a focus on AI and they are looking for a Technical Architect to join their team with a focus on Enterprise, Large scale applications. Their Head Office is in Reading and this is a hybrid role with 2 to 3 days in the office.

Client Details

Our client is a Technology SaaS business with a focus on AI and they are looking for a Technical Architect to join their team with a focus on Enterprise, Large scale applications. Their Head Office is in Reading and this is a hybrid role with 2 to 3 days in the office.

Description

  • Develop and design technical architectures tailored to client needs.
  • Work directly with clients.
  • Work alongside Security and Infrastructure Architects
  • Collaborate with stakeholders to gather and analyse technical requirements.
  • Provide technical guidance and mentorship to development teams.
  • Ensure solutions align with industry standards and best practices.
  • Oversee the implementation of complex technical solutions.
  • Develop documentation for technical processes and system designs.
  • Evaluate and recommend new technologies to enhance business operations.
  • Work closely with project teams to ensure successful delivery.

Profile

Must haves:

  • Currently in an Architect role
  • From a Developer background - C#
  • Azure
  • Worked with large data sets and on large scale, complex applications
  • Expertise in high quality documentation, technical specifications, proposals etc
  • Strong client facing skills
  • Interest in AI

Nice to haves:

  • M365
  • SharePoint
  • Infrastructure and Security knowledge

Job Offer

  • 25 days + BHS
  • Pension
  • Health Insurance
  • Life assurance 4 x salary
  • On site parking
  • Bonus
Senior .Net Developer - Remote - UK Based Only
Morris Sinclair Recruitment
London
Fully remote
Senior
£70,000 - £100,000

Candidates must be based in UK and eligible to work in UK.

Remote-Friendly Software Development Opportunity in Agricultural Technology
Join an award-winning agricultural analytics software company at the forefront of sustainable technology. We’re seeking exceptional Back-End Developers who can transform data into impactful solutions that enhance food production, farm economics, and environmental resilience.

Position Highlights:

  • Remote Work
  • London based head office
  • Cutting-Edge Agricultural Technology Platform
  • Opportunity to Drive Sustainability through Innovative Software Solutions

Candidate Assessment Process:

  • LeetCode-Style Coding Challenge
  • Designed to evaluate algorithmic problem-solving skills
  • Focus on efficient, optimised solutions
  • Challenges will test:
  • Data Structures
  • Algorithm Design
  • Computational Thinking
  • Performance Optimisation

Ideal Candidate Profile:
Academic and Professional Requirements:

  • Ideally PhD graduate but minimum qualification: Degree/Masters in Computing, Computer / Data Science, or Equivalent
  • Proven Commercial Experience as a Back-End Microsoft Developer
  • Strong Academic Background with Demonstrable Achievements
  • Proven ability to excel in time-constrained, algorithmic problem-solving

Technical Expertise:

  • Advanced Proficiency in:
  • C# and .NET Framework
  • Microsoft Azure Cloud Platform
  • SQL and SQL Server
  • Complex Data-Driven Software Development
  • Strong Algorithm and Data Structure Knowledge

Preferred Background:

  • Experience in FinTech or Similar Structured Data Environments
  • Demonstrated Ability to Scale Applications for Large User Base
  • Previous success in technical coding assessments

Personal Attributes:

  • Exceptional Attention to Detail
  • Strong Collaborative and Communication Skills
  • Creative Problem-Solving Approach
  • Quick Analytical Thinking
  • Ability to perform under time pressure
  • Passion for Technological Innovation in Sustainability

What We Offer:

  • Work with Respected Professionals
  • Cutting-Edge Technology Solutions
  • Meaningful Impact on Agricultural Sustainability
  • Opportunity to Develop Market-Leading Software
  • On top of the very competitive salary all employees are included in the company share scheme
C# Software Engineer
Matchtech
Gloucester
In office
Mid
£65/hour
+2

Location: Stevenage OR Bristol (fully onsite)

Duration: 12 month contract

Rate: 65ph UMB (Inside IR35)

Role details:
Our client, a leading consultancy in the defence and aerospace sector, is currently seeking a C# Software Engineer to join their dynamic team. This is a contract position available in either Stevenage or Bristol, with an initial duration of 12 months and the potential for extension.

Key Responsibilities:

  • The role supports the development of the world’s most advanced defence systems from concept through to in-service support and training, utilising a range of simulation technologies such as digital twins and emulators.
  • Collaborating with Project Leads and Simulation Architects, you will design and develop simulation components representing an end-to-end weapon system in a synthetic environment using C#, C++, and integration simulations, adhering to industry standards.
  • You will be a part of a heterogeneous agile development team consisting of engineers from various disciplines working together to develop simulations and representations of real equipment.

Their approach to software development includes:

  • Configuration control
  • Continuous Integration
  • Continuous Delivery or Deployment
  • Unit testing and test-driven development

Job Requirements:

  • Proficient in C# and C++
  • Experience with Microsoft Visual Studio and Eclipse
  • Ability to transition from high-level system views to technical details
  • Excellent verbal, presentation, and written communication skills
  • Knowledge of Microsoft Windows and Linux operating systems

Desirable Skills:

  • Experience with distributed simulation standards/protocols such as DIS, HLA, and DDS, as well as web services development using JavaScript, Node.js, or similar
  • Familiarity with military communications, datalinks, and interfaces such as 1553/1760 and Ethernet TCP/IP
  • Practical knowledge of system integration principles and processes
  • Experience with hardware integration

If you are a skilled C# Software Engineer with a background in defence and aerospace and looking for a new contract opportunity, we encourage you to apply now to join our client’s innovative team in Stevenage or Bristol.

Senior Software Developer
Spectrum IT Recruitment
Southampton
Hybrid
Senior
£65,000 - £70,000
+4

Software Developer

C#, Asp.Net, Azure, REST API’s

Hybrid - 2 days per week in the Southampton Office

65,000 - 70,000

Join a global tech leader where innovation, high performance, and career growth are at the heart of everything they do. 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:

  • Solid experience developing ASP.NET web applications in C# using Visual Studio/Visual Studio Code
  • Experience creating RESTful APIs and ensuring API extensibility
  • Cloud experience (Azure, AWS)
  • Azure DevOps
  • Experience of unit and automated testing using tools such as NUnit, Jasmine and Selenium
  • Good knowledge of SOLID principles

Desirable Skills:

  • Containers (docker, K8s)
  • Security best practice (OWASP top ten)
  • OpenIDConnect/Identity server
  • Micro service architecture
  • MS SQL Server
  • Azure DevOps, TeamCity
  • Infrastructure as Code (Bicep, ARM templates, Terraform)

Please apply now or contact (url removed) for more info

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

Junior C# Developer
VIQU IT
London
Hybrid
Junior
£300/day - £350/day

Junior C# Developer 6-month contract London SC Cleared Inside IR35

My Financial Services customer is looking for a Junior C# Developer, that will play a key role in triaging and resolving technical queries during the development of the Synchronisation Lab to act as a platform for industry to demonstrate use cases and understand business models for synchronisation. The Junior C# Developer will proactively engage with Product and development teams to ensure timely responses to queries.

You ll be joining a collaborative, forward-thinking engineering team delivering scalable, secure, and high-performing solutions within Azure.

Junior C# Developer Skills & Experience required:

  • Active SC Clearance.
  • Strong hands-on experience with C#, .NET and SQL.
  • Experience with Agile ways of working.
  • Experience with a Microsoft Azure based environment.
  • Experience in the financial Services sector.
  • High level support with incident response and troubleshooting.
  • Eagerness to learn and improve interpersonal skills.

Junior C# Developer Key Responsibilities:

  • Triaging and resolving technical queries.
  • Build and maintain database structures and queries using SQL.
  • Support the enhancement of synchronisation models based on participant feedback.
  • Collaborate with developers and the production team.
  • Delivering the technical release of later synchro models.

You must be able to work onsite 2 days per week in London.

Apply now to speak with VIQU IT in confidence. Or reach out to Phoebe Thompson 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 IT Recruitment.

Software Developer (SC Cleared)
Syntax Consultancy Ltd
London
Hybrid
Mid - Senior
£700/day

London (Hybrid)
6 Month Contract
to £700/day (Inside IR35)

Software Developer needed with active SC Security Clearance and strong C#, .NET, SQL, Angular, HTML and JavaScript skills.

6 Month Contract based in Central London (Hybrid). Start ASAP in Feb/March 2026.

Hybrid Working - 2 days/week remote (WFH), and 3 days/week working on-site from the Central London office.

A chance to work with a leading global IT and Digital transformation business specialising in Government projects:

  • Experienced Software Developer / Software Engineer needed to join our team working on the development of data modelling solutions.
  • Must have in-depth C#, .NET, SQL, Angular, HTML + JavaScript development expertise.
  • Experience of Agile methods, Azure DevOps, CI/CD pipeline maintenance + automation scripting, also strongly preferred.
  • Banking / Financial Services domain experience preferred.
  • Must hold active SC Security Clearance used on a project within the past 12 Months.
Full Stack Developer
Rise Technical Recruitment
Wokingham
Hybrid
Junior - Mid
£45,000 - £50,000

Wokingham - Hybrid
45,000 - 50,000 + Holiday + Training + Progression

This is a great opportunity for a Full Stack Developer who wants to play a key role in an industry leading company that will support your professional development.

For the past six decades, they have been a global leader in their field, delivering high-quality products to clients across various industry sectors. As a result of sustained growth, they are seeking to expand their development team by hiring a Full Stack Developer, with a focus on enhancing their expertise in web technologies.

In this dynamic role, you will join a team of like-minded professionals dedicated to developing innovative solutions and bringing them to fruition. Your responsibilities will include designing, developing, and maintaining full-stack applications using TypeScript. Additionally, you will contribute to various projects involving technologies such as Next.js, JavaScript frameworks, and SQL databases.

The ideal candidate will have experience in developing APIs to facilitate seamless integration between platforms, along with proficiency in technologies such as SQL, Next.js, JavaScript, TypeScript, C#, and .NET (for legacy applications). You will also have experience producing reporting solutions, with strong Excel skills for data analysis, structured reporting, and supporting business decision-making. We seek an individual with a strong passion for technology, a problem-solving mindset, and a desire to apply their skills to develop innovative solutions. If you have experience within the manufacturing industry, then this will put you at an advantage.

This is a chance for a motivated Full Stack Developer to join a growing company who will provide you with the ability to progress through training and working independently on projects which will heavily benefit the future of your career.

The role:

Full Stack Developer
Establish and execute automated testing strategies to ensure the maintenance of high-quality code standards
SQL, Next.js, JavaScript, TypeScript, C#, and .NET (for legacy applications)
Partnering with cross-functional teams to develop secure and robust solutions.

The person:

Strong years of experience of Full Stack development
Ability to work in interdisciplinary teams
SQL, Next.js, JavaScript, TypeScript C#, and .NET (for legacy applications)

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.

Web Developer - C
CV Screen Ltd
London
Hybrid
Mid - Senior
£45,000 - £50,000
+4

Web Developer C#

Kent - Hybrid
£50k + Benefits

Introduction
CV Screen is recruiting for a talented Web Developer with strong C# skills to join a well-established and growing technology-led organisation based in Erith, Kent. This hybrid role offers a salary of £50,000 plus an excellent benefits package. The successful candidate will join a collaborative development team delivering scalable software solutions and visually engaging web applications. Our client has been operating for over 20 years, employs more than 200 staff across the UK, and is known for its continued investment in technology and professional development. This is a fantastic opportunity to make a real impact within a forward-thinking business.

Duties & Responsibilities

  • Develop and enhance back-end applications and APIs using C# and .NET
  • Create responsive, user-friendly front-end interfaces with a strong focus on UI/UX
  • Contribute to sprint planning, task tracking and agile delivery processes
  • Manage code through Git and support CI/CD pipelines within Azure DevOps
  • Produce high-quality, testable code and resolve defects or performance issues

What Experience is Required

  • At least 3 years experience in C# and .NET development with strong OOP knowledge
  • Solid front-end skills including HTML5, CSS3 and JavaScript/TypeScript, plus a modern framework (e.g. React, Angular or Blazor)
  • Experience with SQL databases, RESTful APIs and software testing practices

Salary & Benefits
Salary of £45,000 £50,000 plus 25 days holiday plus bank holidays, hybrid working, pension scheme, private healthcare, professional development budget and regular team events.

Location
Based in Erith, Kent and easily commutable from Dartford, Bexleyheath, Sidcup, Gravesend, Bromley and South East London.

How to Apply
To apply, please send your CV in strict confidence to Kate Morgan at CV Screen.

Alternate Job Titles
C# Developer
.NET Developer
Full Stack Developer (.NET)
Software Developer C#

CV Screen Ltd acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the Privacy Policy which can be found on the CV Screen website. (url removed)

C# Developer
VIQU Ltd
London
Hybrid
Mid - Senior
£550/day - £650/day

C# Developer - 6-month contract - London - SC Cleared - Inside IR35

My Financial Services customer is looking for a C# Developer, that will play a key role in designing and building components of a synchronisation platform. You will work across Back End and Front End technologies to enhance the Lab environment, implement feedback-driven improvements, and help shape future synchronisation models.

You’ll be joining a collaborative, forward-thinking engineering team delivering scalable, secure, and high-performing solutions within Azure.

Skills & Experience required from the C# Developer

  • Active SC Clearance
  • Strong hands-on development experience with C# and .NET
  • Solid SQL and database development expertise
  • Experience building modern web applications using Angular, HTML, and JavaScript
  • Experience working within Azure-hosted environments
  • Experience in the financial Services sector
  • Exposure to Azure DevOps, CI/CD pipelines, and automation Scripting would be beneficial

Key Responsibilities of the C# Developer

  • Design and develop Back End services using C# and .NET
  • Build and maintain database structures and queries using SQL
  • Contribute to Front End development using Angular, HTML, and JavaScript
  • Support the enhancement of synchronisation models based on participant feedback
  • Collaborate with architects, product owners, and cross-functional teams to deliver platform improvements
  • Contribute to DevOps processes including CI/CD pipeline support and automation
  • Participate in technical discovery and solution design discussions
  • Continuously improve code quality, performance, and security standards

The C# Developer is required to be onsite, 2 days a week in Central London.

Apply now to speak with VIQU IT in confidence. Or reach out to Connor Smal 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).

Senior Technical Consultant
Uneek Global Ltd
Norfolk
Hybrid
Senior
£65,000 - £70,000

Senior Technical Consultant - Hybrid (London) - Up to £70k + bonus

We are supporting a technology-focused organisation that are looking for a technology-focused professional who is driven by delivering measurable business impact through advanced software solutions in complex operational environments. In this position, you will work closely with client stakeholders, operational experts, and internal delivery teams to ensure successful implementation and long-term optimisation of enterprise systems. Collaboration across diverse stakeholder groups will be central to your success.

What you ll bring:

  • Minimum of three years experience in a comparable role
  • C# development experience
  • Strong analytical, troubleshooting, and critical thinking capabilities
  • Ability to translate complex technical concepts into clear business language

Responsibilities:

  • Analyse business and system requirements for new and existing solutions
  • Produce detailed functional and technical specifications
  • Lead or support successful delivery of software implementations
  • Develop custom configurations, integrations, and software enhancements

What s on Offer

  • Up to £70,000 + bonus
  • Hybrid working (London based)
  • Great benefits
Control Technician
Orchard Recruitment Ltd
Isle of Man
In office
Mid - Senior
£38,000 - £45,000

Our Client are a leading Utilities business with a dedicated team delivering safe, reliable and economic multi-utility supplies and services (electricity, clean water, waste water collection and treatment, natural gas transmission and telecoms). They are now seeking an experienced Control Technician within the Generation and Gas division.

Reporting to the Plant Engineering Manager, you will be responsible for maintaining and developing the controls, communications and monitoring systems within the division.

  • Work as part of the engineering team maintaining and developing the controls, communications and instrumentation systems used to operate and manage the power station and gas systems across all Generation and Gas sites, including SCADA, PLC and DCS equipment controllers, CCTV and access control systems, Computer networks and digital radio system
  • Reactive support with all of the above systems

The ideal candidate for the role of Control Technician will have:

  • Qualified to HNC/HND or equivalent, with electrical / electronic / instrumentation / computing background
  • Control and instrumentation background in the Power, Process or Manufacturing Industry
  • Experience in maintenance and development of electronic, communications and network equipment and systems for control applications (DCS, SCADA, PLC’s, HMI’s, Servers, digital radios), Control servers, Security & CCTV systems
  • A clear understanding of the need for and the application of cyber security in the protection of control systems and plant assets
  • Experience in some programming languages (SQL, C#, Visual Basic)
  • Familiarity with the Linux Operating System
  • Analytical skills which will be used for fault diagnosis and rectification
  • Strong interpersonal skills, a practical approach to engineering and demonstrate the ability to work either as a team member or independently
  • Self-motivated with a strong awareness of team priorities, and ability to use their technical knowledge to help the team deliver its mission
  • Collaborative working and knowledge sharing
  • Holds a valid Driving Licence
IT Compliance Support Engineer - Hybrid - Banking
GCS
London
Hybrid
Junior - Mid
£400/day - £415/day

IT Compliance Support Engineer - Hybrid / Canary Wharf - 6 month Contract - Banking

Tier 1 Bank - Regulatory Reporting Team

Role - IT Compliance Support Engineer

Duration - 6 months with very likely extension

Location - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf office

Rate - 415 per day (Inside IR35)

Role

  • IT Compliance Support Engineer to join a development team and act as the primary liaison with internal/external audit, compliance, and IT security counterparts. This role combines governance with technical capability-supporting audits, demonstrating IT controls, and troubleshooting or coordinating resolution of issues across Azure DevOps pipelines, ServiceNow change management, and Jira requirement workflows. You will help us evidence good practice, reduce audit friction, and improve developer productivity by ensuring our controls are both effective and practical.

Tasks

Audit & Compliance Liaison

  • Act as the single point of contact for internal/external audit, compliance, and IT security.
  • Handle audit requests, walkthroughs, and create timely evidence (C# source code, SQL scripts, server config, Azure DevOps logs, ServiceNow change records, Jira artefacts).
  • Maintain an audit-ready repository of artefacts and narratives (control matrices, process maps, and access log review).

Interpret Technical Details for Auditors

  • Ability to understand C# code and SQL scripts to verify logic and queries.
  • Interpret permissions (Windows, Azure AD, Azure DevOps) and explain them clearly to auditors.
  • Translate technical details into auditor-friendly narratives.

IT Controls & Governance

  • Operate and improve general IT controls (GITC) across change management, access control, backups/recovery, incident/problem management.
  • Ensure segregation of duties, peer reviews, approvals, and traceability for production changes.
  • Embed controls within Azure DevOps pipelines (e.g., gated approvals, policy enforcement).

Evidence & Documentation

  • Create and maintain clear documentation: SOPs, control narratives, diagrams, audit evidence packs.

Support Risk Assessments

  • Assist or act on behalf of the Application Service Owner in completing required risk and compliance assessments (e.g., security, operational resilience, regulatory checks) as per internal governance standards and workflows.
  • Ensure timely submission of assessment artefacts and coordinate with relevant stakeholders for approvals and remediation actions.

Coordinate Audit/Assessment/Security Defect Remediation

  • Track and manage remediation of audit findings, control gaps, and assessment defects.
  • Work with developers, platform teams, and risk owners to ensure timely closure and evidence of remediation.
  • Provide regular status updates to stakeholders and maintain defect logs for audit readiness.

GCS is acting as an Employment Business in relation to this vacancy.

C# Software Engineer X 3
Adria Solutions Ltd
Manchester
In office
Mid - Senior
£40,000 - £60,000

C# Software Engineer X 3 Manchester

As a C# Software Engineer, you ll design and deliver high-quality, scalable solutions across our clients platform. You ll take ownership of key features, contribute to architectural decisions, and support a culture of technical excellence.

What You ll Do

  • Develop, enhance, and support high-performing, scalable solutions built in C#
  • Partner closely with Product and fellow engineers to turn business needs into effective technical implementations
  • Play an active role in shaping system design and influencing the future technical roadmap
  • Promote high standards across development, including clean code, thorough testing, and clear documentation
  • Conduct peer reviews, troubleshoot complex issues, and proactively address legacy or inefficient code
  • Provide guidance and knowledge-sharing to help other engineers grow and succeed

Skills and Experience:

  • 3 years+ commercial experience in software development
  • Solid hands-on expertise with C# and TypeScript, applying modern engineering standards and practices
  • Demonstrated track record of building and deploying reliable, scalable systems in live environments
  • Familiarity with automated build, deployment, and release processes within a CI/CD setup
  • Analytical mindset with the ability to solve complex problems and communicate solutions clearly
  • Thrives in a fast-moving, agile team where collaboration and shared ownership are key

Benefits

  • Private medical & dental insurance
  • Life assurance
  • Employee discounts
  • Regular team events

Interested? Please Apply Now!

We are an equal opportunity employer and value diversity.

C# Software Engineer X 3 Manchester

Software Developer
Syntax Consultancy Ltd
Derby
Hybrid
Mid - Senior
£50,000 - £60,000
+4

Derby (Hybrid)
Permanent (Full-Time)
to £50k-£60k (DOE) + Benefits

Syntax is looking for a talented Software Developer with strong C#, .NET Framework, .NET Core, MVC, and JavaScript experience for a permanent career opportunity in Derby (Hybrid).

Syntax Consultancy is an independently owned IT services and recruitment business with 30+ years’ experience of delivering IT solutions for an array of Public and Private sector organisations.

A chance to join our dynamic development team at our Derby office (Pride Park), including hybrid working options. Start ideally by April 2026.

Key skills, experience + tasks include:

  • Software Developer with a strong foundation in C#, .NET Framework, and .NET Core, along with proficiency in MVC, Entity Framework, JavaScript, jQuery, CSS, HTML, MS SQL, TFS + DevOps practices.
  • Technical Expertise: C#, .NET Framework, .NET Core, MVC, Entity Framework, JavaScript, jQuery, CSS, HTML, MSSQL, TFS, DevOps and SQL Server databases.
  • Working across all phases of the software development lifecycle (SDLC), including requirements analysis, design, coding, testing, deployment + maintenance.
  • Developing high-quality, scalable and maintainable code that meets project requirements and industry standards.
  • Troubleshooting + debugging software issues on existing systems and providing timely resolutions.
  • Performing code reviews, providing constructive feedback + mentoring junior team members.
  • Advantageous: React, Microservices, RESTful APIs, GraphQ, Azure Cloud Services, payment gateways, financial technologies, IT related Degree.
  • Benefits: £50-60k Salary (DOE) + Hybrid Working + Pension + Generous Annual Leave (plus BHs) + Death in Service + Health Benefits + Training & Career Development + Annual Pay Reviews.

Why work with us

  • Our People we have a diverse team of people at Syntax with a mix of personalities, genders, ages and ethnic backgrounds. We welcome people from all walks of life and we recruit on merit.
  • Flexibility we operate a flexible approach to working, our staff have the option to work from home on a hybrid basis at agreed times.
  • Job Security we are an established, healthy business with a 30+ year proven track record and low staff turnover. Many of our key people have been with us for 10+ years.
  • Work Environment a friendly and positive working environment. We treat people as grown-ups and trust them to deliver what’s expected of them.
  • Convenience we have free on-site parking our office is easily accessible, located just outside Derby City Centre. Easily commutable by car or public transport.
  • Values we are a team of committed professionals with shared values and a strong team ethos. We work hard to embody our core values of: service, empathy, energy, ownership, going the extra mile, and fun.
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.