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Software Engineer
SmartSourcing plc
UK
Hybrid
Mid - Senior
ÂŁ350/day - ÂŁ450/day
RECENTLY POSTED
+1

C# Software Engineer, Remote, 12 month contract, Inside IR35

Must be eligible for BPSS clearance. Working one day a month on site in Rugby

Real-time system experience is essential for this role, working within an Agile delivery team, you will move beyond standard CRUD applications to solve complex network and real-time communication challenges. You will lead the development of expansion products that interface with 3GPP-compliant User Equipment (UE).

What You’ll Do:

* SIP Signaling & Session Management: Develop C# components for high-concurrency SIP sessions, managing complex headers and MIME bodies to support features like “First-to-Answer” and Group Regroups.

* Real-Time Media Plane: Implement RTP/RTCP media handling for Mission Critical Voice (MCPTT) and Video (MCVideo), ensuring seamless floor control (transmission rights) in half-duplex environments.

* Data & Configuration: Build handlers for MCData services (SDS, File Distribution) using HTTP and SIP MESSAGE requests, and manage XCAP retrieval logic for XML configuration documents.

* Secure Communications: Integrate OIDC authentication flows and MIKEY-SAKKE encryption to ensure media transport remains secure and resilient.

Essentials skills:

* C# / .NET Framework / .NET Core Mastery: 3+ years of professional experience with a deep focus on asynchronous network programming.

* .NET Frameworks Experience: WCF, SignalR, EF, ASP.NET, WebAPI

* Protocol Expertise: A solid understanding of the SIP Protocol Stack (INVITE, PUBLISH, SUBSCRIBE, etc.) and experience with RTP/RTCP stacks.

* Data Handling: Proficiency in parsing complex XML schemas (XSD) and handling multipart/mixed MIME bodies.

* Software Engineering Principles: Strong grasp of OOP, SOLID principles, and modern CI/CD workflows (Git, Pull Requests, Agile).

Preferred skills:

* 3GPP Standards: Familiarity with TS 24.379 (MCPTT) or related MCX standards.

* Security: Experience with SRTP, TLS, or Key Management lifecycles (KMS).

* Domain Knowledge: Previous experience with UK Police Control Room environments or the Emergency Services Network (ESN).

SmartSourcing are a Disability Confident Employer and we promote, celebrate and value diversity, we are committed to promoting equality and inclusion for all

Software Developer
Gregory Distribution
Cullompton
Hybrid
Junior - Mid
ÂŁ45,000
RECENTLY POSTED

Location: Cullompton, Hybrid Working

About Us: Gregory Distribution Ltd is a leading provider of logistics and transport services across the UK. We pride ourselves on delivering tailored solutions for a diverse range of clients. Our commitment to operational excellence, compliance, and continuous improvement ensures we meet and exceed our clients’ expectations.

Job Description: We are seeking a proactive and solution-oriented Software Developer to design, develop, and support a variety of applications and systems. This role is ideal for someone who thrives in a fast-paced, collaborative environment, enjoys tackling complex technical challenges, and is passionate about building high-quality software that delivers real value to users.

Key Responsibilities:

Building secure and performant browser-based applications which integrate with or interact with our core business systems.

Building and maintaining a diverse portfolio of software solutions - from small-scale tactical utilities to larger-scale strategic web-based applications - in line with our technology stack (.NET Core / SQL / Blazor / Azure).

Developing both internally accessible and externally (internet) facing applications.

Writing clean, functional code on both the front and back-end - as part of a small team, so a broad and generalist knowledge of all aspects of development is required.

Maintain awareness of web application security and building applications which meet high standards of security, pass penetration tests and align with OWASP recommendations.

Taking an active part in the whole Software Development Lifecycle end-to-end - including conception, design, architecture, build and deployment.

Producing accurate estimates for project deliverables and change requests.

Supporting developed applications including investigating and resolving issues.

Contributing to defining and delivering continuous improvement roadmap for developed applications.

Defining test requirements, writing test scripts, carrying out and coordinating testing of developed solutions.

Maintaining application related documentation including process flows, training materials and support content.

Contributing to the planned roadmap for application changes and improvements.

Handling escalated issues and driving them through to resolution, communicating with relevant stakeholders across the wider Technology team and the business.

Delivering critical care following changes and new implementations and supporting service transition to BAU.

Required Experience:

Minimum of 2-3 years’ experience of developing secure customer-facing browser-based software applications - ideally within our technology stack of Blazor, .NET Core, SQL, Azure or equivalents.

Experience of deploying web applications using DevOps approaches and a CI/CD pipeline framework - ideally in Azure, but other equivalent experience considered.

Experience of serverless application architecture - ideally within Azure (e.g. Azure App Service, Blob Storage, Azure AD B2B/C, Managed SQL) - but equivalent experience (e.g. AWS) considered.

High-level of technical proficiency, IT aptitude and a general interest in technology, systems and software.

Critical thinking and logical, analytical mindset to problem solving.

Excellent written and verbal communications skills.

Why Join Gregory Distribution Ltd?

Competitive Salary : ÂŁ45,000pa - ÂŁ47,000pa.

Hours: Monday to Friday, 08:30hrs - 17:00hrs. Hybrid working.

Training : Monthly Courses for a variety of areas.

Benefits : Additional holiday purchasing scheme*, Retail discounts with Circular Benefits*, Retail Trust Wellbeing Support*, and more.

Career Growth : Explore opportunities for professional development within our expanding business.

Company Benefits : Excellent holiday allowance. Life assurance, pension, and sickness scheme*.

Extras : Christmas Savings Club*, Black Circle Tyre Discount*, Cycle To Work Scheme*, Free Uniform and paid Volunteer Day.

Wellbeing Support: Benefit from the Retail Trust Wellbeing Support* program.

Team Environment: Be part of a strong culture of teamwork and collaboration.

How to Apply

If you have the drive to be the best and want to be part of a flourishing and ambitious company, apply now!

Please submit your application as soon as possible. Due to high volumes of applications, we reserve the right to close adverts before the closing date once we have received sufficient application

Eligibility : Applicants must be eligible to work in the UK with no restrictions. Proof of Right to Work will be required at the interview stage.

Contact Us : For any queries, please contact our Recruitment Team at . Our team is available Monday to Friday, 08:30hrs - 17:00hrs.

Note to Recruitment Agencies : We prefer to recruit directly but have a Preferred Supplier List for when we need assistance. We’ll be in touch if we need you.

*Subject to terms and conditions.

TPBN1_UKTJ

Application Developer
ARC IT Recruitment Ltd
Brighton
Hybrid
Mid
ÂŁ60,000
RECENTLY POSTED

Brighton Hybrid (4 days in office, 1 day remote)
Permanent | Up to ÂŁ60K DOE

Join one of the South Easts fastest-growing technology companies, celebrated for its innovative and collaborative culture. Our client delivers cutting-edge software solutions and theyre looking for an Application Developerto help drive their next stage of growth.

This is an excellent opportunity to work within a forward-thinking team where creativity, collaboration, and continuous improvement are at the heart of everything they do.

As an Application Developer, youll play a key role in designing, building, and maintaining high-quality software applications. Youll collaborate closely with other developers, testers, and stakeholders to deliver robust, scalable, and efficient solutions using the latest Microsoft technologies.

Required:

  • Develop and maintain applications using C#and .NET Core.
  • Apply SOLID principlesand clean coding practices to produce maintainable, high-quality software.
  • Contribute to the full software development lifecycle, from design and development to testing and deployment.
  • Work collaboratively within an agile, team-oriented environment.
  • Participate in code reviews and share knowledge to foster team growth.

Skills & Experience

  • 23 years of commercial experience in C#/.NET Coredevelopment.
  • Strong understanding of object-oriented programmingand SOLID design principles.
  • Experience building and integrating backend applications.
  • A strong communicator and proactive team player with a passion for technology.

The Offer

  • Competitive salary up to ÂŁ60,000, depending on experience.
  • Hybrid working model 4 days in the Brighton office, 1 day remote.
  • Opportunity to work in a dynamic, growth-oriented company with a supportive team culture.

If youre a motivated Application Developer who thrives in a collaborative environment and loves solving complex challenges, wed love to hear from you.

Senior .Net Developer
Stratospherec Ltd
London
Fully remote
Senior
ÂŁ65,000 - ÂŁ75,000
RECENTLY POSTED
+6

Senior Software Engineer

.Net, C#, JavaScript/TypeScript, Razor, GraphQL

Fully Remote working

Competitive salary plus great employee benefits package

A fast growing and dynamic global software company with offices in the USA, Australia and the UK are looking to recruit a Senior Software Engineer to work for their European team on a fully remote basis. This company make a leading online web system for the global housing industry – this company are the world leader in their sector and to grow this team extensively over the next 12 months. So, this is a chance to be part of a new team building a very successful set of web applications.

This is a fantastic job opportunity for a Senior Software Engineer with a background in C# .Net and JavaScript/TypeScript technologies who enjoys working in an innovative team environment and who enjoys building high performance software that is at the absolute forefront of its industry.

This Web Development team operate a flat structure and allow their developers to interact with different departments and teams to show their creative side. You will be working on new projects on the core web platform with other great developers in the UK.

This role would suit a Developer who:

* Has a can-do attitude and enjoys working in a team environment.

* Enjoys taking ownership on technical projects

* Is keen to mentor (but not manage) junior developers

* Enjoys knowledge sharing and using the latest web technologies

Skills in the following would be useful:

* .Net Framework and .Net Core

* Visual Studio or VSCode

* C#,

* JavaScript (or TypeScript)

* Razor

* T-SQL

* Git

Bonus points if you have used any of the following:

* Azure or AWS

* Kubernetes & Docker

* TDD / Agile

This global software company are committed to keeping their employees engaged, challenged and rewarded. You will have the opportunity to attend regular Development team events, professional development opportunities and potentially travel overseas to their international offices if this is of interest.

This company prides itself on taking care of its employees and customers. Their culture and values are the foundation of their success and at the core of the business. They focus on customer service, teamwork, positive attitudes, taking responsibility, building relationships, managing expectations and ultimately on passion, innovation, care and enthusiasm.

This Senior Software Engineer will be joining a fantastic team, working fully remotely on SaaS applications used by millions of people every single day

Please apply with your CV to find out more?

Technical Lead
ClearSky Logic
Glasgow
Hybrid
Senior
ÂŁ70,000
RECENTLY POSTED

??Technical Lead in Glasgow

At ClearSky Logic, we are The Tech Enabler.Our mission is to work alongside our clients to solve the most complex challenges, create undeniable value, and set a new standard for what is possible in the industry.

Companies like Inizio, Startline Motor Finance, and Multreese trust us to get the job done and now, we’re growing our team to take things even further.

?? Role Details

  • Location: Glasgow- SkyPark- Hybrid (3 days on site)
  • Salary: from up to 10% company bonus
  • Please note: We are unable to offer sponsorship.

? How We Support Our Team

  • 34 days holiday - because work-life balance matters.
  • Birthday off - no one should work on their special day.
  • Health and Security - Sick pay, private dental & medical insurance - we’ve got your health covered.
  • Family First - Enhanced family-friendly policies.
  • Growth Path - Tailored professional development - we support your growth so you can become the expert you’re meant to be.
  • Culture Matters - Office perks & team celebrations.

?? Your Proactive Role in the Squad

As a Tech Lead, you will be a proactive, supportive partner in building cutting-edge technology that solves real-world challenges and enables client growth. You will work within our l Squad model where you’re empowered to take ownership: shaping the architecture, asking the tough questions, and championing best practices to drive projects forward and deliver enterprise-level results.

What You Will Deliver

  • Architectural Leadership: Evaluate technical options, make informed decisions on technology choices, and document architectural decisions with clear rationale.
  • Enterprise Development: Designing and developing high-quality solutions using .NET Core for large enterprise applications.
  • Technical Excellence: Establish and maintain coding standards, review practices, and ensure high coding standards across the team.
  • Distributed Systems: Architecting microservices and distributed systems using inter-service communication like gRPC and HTTP APIs.
  • Event-Driven Design: Leveraging message-based systems, specifically Azure Service Bus, for asynchronous processing.
  • Infrastructure & DevOps: Managing Infrastructure as Code and Azure CI/CD pipelines to drive innovation.
  • Testing Strategy: Implementing comprehensive testing strategies, including unit, integration, and subcutaneous/e2e testing.

Who We Are Looking For

  • A Technical Mentor: Someone who provides guidance and upskilling to mid-level and junior developers, conducting code reviews with constructive feedback.
  • An Expert Engineer: Deeply experienced in .NET Core, SQL, and document databases (Cosmos DB desirable).
  • A Strategic Thinker: Able to break down complex technical problems into manageable work packages and guide the team through implementation.
  • A Collaborator: Great at working with teams, stakeholders, and possessing direct client interface capability.
  • Initiative-Driven: Someone who takes ownership, follows agile delivery practices, and gets things done.

Why Join CSL?

Joining ClearSky Logic means trading corporate red tape for a culture of transparency where direct communication and a shared vision are the standard. You will move beyond being a “cog in the machine” to become an architect of products, gaining the autonomy to build high-impact solutions. With a “school day, every day” mentality, you will benefit from a constant stream of diverse projects and promotion paths within an energetic community that values mutual support and technical excellence.

Application Developer
ARC IT Recruitment
Brighton
Hybrid
Junior - Mid
ÂŁ60,000
RECENTLY POSTED

Brighton - Hybrid (4 days in office, 1 day remote)

Permanent | Up to ÂŁ60K DOE

Join one of the South East’s fastest-growing technology companies, celebrated for its innovative and collaborative culture. Our client delivers cutting-edge software solutions - and they’re looking for an Application Developer to help drive their next stage of growth.

This is an excellent opportunity to work within a forward-thinking team where creativity, collaboration, and continuous improvement are at the heart of everything they do.

As an Application Developer, you’ll play a key role in designing, building, and maintaining high-quality software applications. You’ll collaborate closely with other developers, testers, and stakeholders to deliver robust, scalable, and efficient solutions using the latest Microsoft technologies.

Required:

  • Develop and maintain applications using C# and .NET Core.
  • Apply SOLID principles and clean coding practices to produce maintainable, high-quality software.
  • Contribute to the full software development life cycle, from design and development to testing and deployment.
  • Work collaboratively within an agile, team-oriented environment.
  • Participate in code reviews and share knowledge to foster team growth.

Skills & Experience

  • 2-3 years of commercial experience in C#/.NET Core development.
  • Strong understanding of object-oriented programming and SOLID design principles.
  • Experience building and integrating Back End applications.
  • A strong communicator and proactive team player with a passion for technology.

The Offer

  • Competitive salary up to ÂŁ60,000, depending on experience.
  • Hybrid working model - 4 days in the Brighton office, 1 day remote.
  • Opportunity to work in a dynamic, growth-oriented company with a supportive team culture.

If you’re a motivated Application Developer who thrives in a collaborative environment and loves solving complex challenges, we’d love to hear from you.

Software Developer
Oscar Associates (UK) Limited
Lincoln
Hybrid
Mid
ÂŁ55,000
RECENTLY POSTED

Software Developer - C# .NET Core/Vue/AWS - Lincoln - ÂŁ50,000 - ÂŁ55,000

The Role

An innovative and growing technology company in the leisure sector is looking to add a talented Software Developer to its UK-based team.

You’ll be contributing to a modern software platform that’s making a big impact across a niche global market. There will be the opportunity to collaborate with other developers and people across the wider technical team working on a variety of existing and greenfield projects.

You’ll join a friendly, cross-functional team where your input will shape key product decisions and help improve the user experience for thousands of active users. The work is varied, ranging across the full stack on a variety of systems.

Requirements

Minimum 4 years of experience in Software Development

C# .NET Core

SQL Server

JavaScript/TypeScript/HTML + CSS

JavaScript frameworks (Vue ideally but will consider React/Angular/KnockoutJS)

Desirables

AWS (EC2, SNS and Cloud Formation)

DevOps and build automation tools

Agile/Scrum Methodologies

The Company

This is a expanding tech company operating in a niche sector with a stable, global customer base. With team members across multiple countries, they offer the feel of a close-knit startup with the backing and stability of a mature business. They are currently expanding into other global markets, demonstrating their positive growth!

They foster a culture where developers are encouraged to take ownership, be creative, and work collaboratively. You’ll benefit from strong leadership, technical freedom, and the chance to work on products used internationally.

Salary for this role is between ÂŁ50,000 and ÂŁ55,000 DOE and further benefits include hybrid working (2 days in the office, 3 days WFH a week), your birthday off, free onsite parking, the opportunity to progress in an exciting sector and much more!

Apply Now

If you’re looking for a role that offers flexibility, challenge, and the chance to build meaningful software in a collaborative setting, this will be the role for you!

Don’t miss out and apply today!

Software Developer - C# .NET Core/Vue/AWS - Lincoln - ÂŁ50,000 - ÂŁ55,000

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.

TPBN1_UKTJ

Senior Software Engineer
Nextech Group Limited
Clacton-on-Sea
Hybrid
Senior
ÂŁ55,000
RECENTLY POSTED
+1

Senior Software Developer

Clacton-on-Sea | Hybrid

Salary: ÂŁ50k+

*Must have valid right to work, NO sponsorship provided for this role*

A great client of mine, a leading technology company , is looking to hire a Senior .NET Developer to join their engineering team. This is a strong opportunity to work within a well-established business that values solid engineering, long-term thinking and gives senior developers real ownership over their work.

With a complex, business-critical tech stack and a clear roadmap for improvement and modernisation, they’re looking for someone confident working across both legacy and modern .NET environments.

The role

Develop and maintain applications using .NET Framework and .NET Core

Build and support WinForms and WebForms applications

Develop front-end functionality using Vue.js 3

Design and optimise databases using Microsoft SQL Server

Develop and integrate services using SOAP, WCF and gRPC

Contribute to architectural discussions, code reviews and CI/CD pipelines

Troubleshoot, debug and optimise application performance

Requirements

Strong commercial experience with .NET Framework and .NET Core

Hands-on experience with WinForms, WebForms and Vue.js 3

Solid experience with MS SQL Server

Experience working with SOAP, WCF and gRPC

Good understanding of software design principles

Experience with version control tools (Azure DevOps / Git)

What’s on offer

Hybrid working

A stable, tech-led business with long-term growth plans

Real technical ownership and impact

Competitive salary and benefits

TPBN1_UKTJ

Software Engineer
Bright Purple Resourcing
Edinburgh
Hybrid
Mid
ÂŁ55,000
RECENTLY POSTED
+2

Software Engineer - Edinburgh (Hybrid) A leading hospitality technology company is seeking a Software Engineerto joina core product team building high-volume platforms for pubs, restaurants and hotels across the UK. This is a hands-on role within a collaborative, Agile environment, where youll help design and deliver scalable, customer-facing systems while influencing technical direction. Whats in it for you: Hybrid working with 2 days per week in the Edinburgh office Salary up to ÂŁ55,000 25 days annual leave + 8 bank holidays Comprehensive private healthcare 5% pension contribution Your birthday off The role Develop and maintain reliable, high-performance services Contribute to architectural and technical decision-making Work closely with product and engineering teams to deliver value Build solutions with scalability, resilience and quality in mind Take ownership of your technical growth About you Experience with C# / .NET Core , alongside PHP Front-end experience using React or similar frameworks Solid database experience (SQL Server and/or MySQL) Proven experience building systems on Microsoft Azure Familiar with CI/CD pipelines, messaging and caching technologies Comfortable working across multiple technologies Why apply? Youll join a technology-driven hospitality business offering flexible hybrid working, a supportive engineering culture, and the chance to work on products used at scale across the UK. Bright Purple is an equal opportunities employer: we are proud to work with clients who share our values of diversity and inclusion in our industry. TPBN1_UKTJ

Software Design Engineer
Mploy Group
Witney
In office
Mid - Senior
ÂŁ65,000
RECENTLY POSTED
+6

About the Role

We are looking for a talented Software Design Engineer to join our engineering team and play a key role in the design and development of high-performance industrial and automation software. You will work on complex, real-time systems that interface closely with hardware such as motion controllers, lasers, and machine-vision components.

This role is ideal for someone who enjoys solving challenging technical problems, working across software and hardware boundaries, and contributing to robust, scalable system architectures.

Key Responsibilities

  • Design, develop, and maintain high-quality software solutions using C# (.NET / .NET Core), with a strong focus on clean, maintainable architecture.
  • Build intuitive user interfaces using WPF, following best practices such as MVVM and other proven design patterns.
  • Develop and support real-time systems running on RTOS, Windows, or Linux platforms.
  • Integrate and control industrial hardware including motion controllers, lasers, and vision systems.
  • Implement reliable communication between systems using industrial Ethernet protocols and OPC UA.
  • Develop automation, data processing, and tooling solutions using Python.
  • Collaborate closely with multidisciplinary teams to deliver robust, production-ready systems.
  • Support continuous improvement through version control, testing, and CI/CD pipelines.

Technical Skills & Experience

Programming & Frameworks

  • Expert-level experience in C# (.NET / .NET Core).
  • Strong experience with WPF for desktop UI development.
  • Solid understanding of software design patterns (e.g. MVVM, Factory) and clean architecture principles.
  • Good Python skills for automation, scripting, and data handling.
  • Experience developing real-time systems on RTOS, Windows, or Linux.

Industrial Control & Communication

  • Experience programming industrial PCs and motion controllers such as Beckhoff, Delta Tau, Aerotech, or Galil.
  • Deep understanding of industrial Ethernet protocols including EtherCAT, PROFINET, and SERCOS.
  • Hands-on experience using OPC UA for system integration and data exchange.

Hardware, Lasers & Vision

  • Practical experience controlling industrial lasers (fibre, CO2, excimer) via API or serial/Ethernet interfaces.
  • Experience calibrating and controlling galvo scanners (e.g. ScanLab, Cambridge Technology).
  • Strong machine-vision experience using tools such as Halcon and/or OpenCV.

DevOps & Tools

  • Proficient with Git for version control.
  • Experience working with CI/CD pipelines (Azure DevOps, GitLab).
  • Familiarity with data logging and databases, including SQL, NoSQL, and time-series databases such as InfluxDB.

What Were Looking For

  • A highly motivated engineer with strong problem-solving skills.
  • Someone who enjoys working on technically demanding, real-world systems.
  • A team player who can communicate effectively across software, hardware, and engineering disciplines.
  • A passion for building reliable, scalable, and well-designed software.

If you are excited by the opportunity to work on cutting-edge industrial software and contribute to innovative, real-world engineering solutions, we look forward to hearing from you.

Software Developer
Adecco
Leyland
In office
Mid - Senior
ÂŁ45,000 - ÂŁ60,000
RECENTLY POSTED
+11

Web Portal & API Developer /Software Developer This opportunity is brand new, due to business growth and with a globally recognised leader in their sector. Based in Leyland this role will see you develop your career within quite a unique sector. Role Competencies Excellent debugging and analytical problem‑solving skills Ability to understand complex, multi‑service interaction flows Secure coding mindset and API‑first approach Strong team collaboration and clear technical communication Ability to write professional, structured technical documentationRequired Technical Skills: C# (Strong proficiency) ASP.NET MVC or .NET Core Web API MVC concepts: Routing, Controllers, Filters, Middleware, Model Binding, DI Entity Framework Core: DbContext, DbSet, OnModelCreating, LINQ ADO.NET / Raw SQL execution experience (e.g., SqlCommand, Stored Procedures) MS SQL Server, MySQL database experience HTML5, CSS3, JavaScript API & Integration: REST API expertise (HTTP verbs, status codes, response handling) Experience consuming APIs using HttpClient, RestSharp or equivalent JSON serialization/deserialization (System.Text.Json / Newtonsoft.Json) CORS, HTTPS, API Security best practices Version Control & Deployment Git (Branching, Pull Requests, Conflict Resolution) CI/CD experience (Azure DevOps, GitLab CI) (preferred) Hosting experience with IIS or Kestrel Docker basics (preferred but not mandatory) Preferred Skills Fintech or payment API integration experience Cloud hosting basics (Azure, AWS) Experience with Webhooks or event-driven APIs Familiarity with structured logging (Splunk, ELK, Application Insights) API performance optimisation & rate-limiting handling Key Responsibilities Develop and maintain web portals using ASP.NET MVC / .NET Core Design, build, and integrate REST APIs with internal and third‑party systems Implement secure authentication mechanisms (JWT, OAuth2, API Keys) Integrate applications with relational databases using EF Core (DbContext, LINQ, Migrations) Debug end‑to‑end request flows (UI → Controller → API → Database → Response) Maintain and publish API documentation using Swagger/OpenAPI Ensure API security, reliability, and performance including: Proper error handling Retry logic Logging Timeouts CORS configuration Collaborate with database, infrastructure, and QA teams throughout release cycles Participate in code reviews and follow Git best practices Contribute to CI/CD workflows and deployment processes Education & Experience Bachelor’s degree in Computer Science, Software Engineering, or related field 2+ years web portal development and API integration (3+ years preferred) Adecco acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers. The Adecco Group UK & Ireland is an Equal Opportunities Employer. By applying for this role your details will be submitted to Adecco. Our Candidate Privacy Information Statement explaining how we will use your information is available on our website

Senior .Net Developer
ISR RECRUITMENT LIMITED
Not Specified
Hybrid
Senior
ÂŁ55,000 - ÂŁ65,000
  • Senior .NET Developer
  • Devon (Hybrid-working - minimum of 2 days in the office, meaning you must be based locally)
  • cÂŁ55,000 to ÂŁ60,000 per year
  • Pension, Bonuses, Training and Development, etc.

Skills and Experience:

  • Expertise in C#, .NET Core, REST API design and backend architecture.
  • Strong SQL skills with the ability to create performant, reliable database logic.
  • Strong understanding of ORM patterns, data mapping strategies and trade-offs between ORMs and stored procedure-driven access.
  • Ability to lead architectural decisions and evolve backend engineering practices.
  • Excellent troubleshooting, debugging and performance optimisation skills.
  • Strong communicator, able to collaborate effectively with engineering, product and offshore teams.
  • Experience integrating services into CI/CD pipelines (GitHub Actions or Azure DevOps).
  • Familiarity with clean architecture, domain-driven design, or similar engineering patterns.
  • Understanding of containerisation workflows (Docker) and AKS operational concepts.
  • Mentoring experience or leadership within engineering teams.
  • Exposure to API testing practices or support for integration testability.

The Opportunity:

My client based are a Software house based in Devon and they are currently looking for a Senior .NET Developer on a permanent basis.

In this role, the Senior .NET Developer will play a key role in designing, developing and maintaining backend services and APIs that power my client s platform.

This role includes significant responsibility for backend architecture, coding standards and improving engineering practices across the team.

You will be working with modern .NET Core patterns, contributing to SQL development and collaborating closely with front-end teams to enable high-quality product delivery at all times.

This role will help strengthen the overall backend foundation as they look to mature their SDLC and engineering capabilities.

Applications:

Please contact John Noonan here at ISR Recruitment to understand more about our client leading the way in delivering the very latest in technical solutions for their clients from their offices in Devon?

Software Developer / C# .NET Software Engineer (AWDO-P14375)
AWD online
Manchester
Remote or hybrid
Mid - Senior
ÂŁ70,000
+3

C# .NET Software Developer An exciting opportunity for a skilled developer to design, build and maintain bespoke software solutions within a modern DevOps environment, supporting scalable systems and cloud-based platforms across a growing organisation. If you’ve also worked in the following roles, we’d also like to hear from you: C# .NET Developer, Backend Developer, Software Engineer, DevOps Engineer SALARY: up to £70,000 per annum (depending on experience) + Benefits LOCATION: Remote and Hybrid Working Options Available. You can either work remotely of if you prefer Hybrid working from home and the office in Altrincham, Greater Manchester, North West England JOB TYPE: Full-Time, Permanent JOB OVERVIEW We have a fantastic new job opportunity for a C# .NET Software Developer to join a forward-thinking Technology team focused on building reliable, secure and scalable systems. This role plays a key part in developing bespoke applications that support long-term business growth. As a C# .NET Software Developer, you will work across the full software development lifecycle, contributing to new system development, integrations and continuous improvement of existing platforms within a DevOps-led environment. The C# .NET Software Developer role offers exposure to cloud technologies, containerisation and modern API architectures, providing the opportunity to influence technical delivery while maintaining high standards of quality and security. APPLY TODAY Ready to make your next career move? Apply Now for our Recruitment Team to review. DUTIES Your duties as the C# .NET Software Developer include: • Software Development: Developing new and maintaining existing systems, applications and integrations • DevOps Deployment: Deploying solutions using agile methodologies and DevOps best practices • Prototyping and Proofs of Concept: Creating prototypes and presenting technical solutions to stakeholders • Systems Integration: Liaising with external partners and suppliers to support system integrations • Code Management: Maintaining secure source control and change management using repositories • Quality Assurance: Ensuring code quality through unit testing and staging environments • Security and Compliance: Applying secure coding practices and protecting against cyber threats • Documentation: Producing technical and operational documentation as code is developed • Project Delivery: Prioritising development tasks, timelines and deliverables • Team Collaboration: Working closely with the wider Technology team to deliver the product roadmap CANDIDATE REQUIREMENTS ESSENTIAL • Proven experience developing systems using C# .NET, including .NET Core and Entity Framework • Experience working with APIs and data formats such as REST, WebSockets, SOAP, JSON and SQL • Experience operating within DevOps environments and agile delivery models • Experience using source control and CI/CD tools such as GitHub • Experience with containerisation technologies, including Docker • Experience working with cloud platforms, particularly Google Cloud Platform • Working knowledge of Windows and Linux environments, including scripting • Understanding of secure coding practices and application security principles DESIRABLE • Experience with enterprise IT architectures and business support systems • Knowledge of information security frameworks such as ISO27001, NIST or GDPR • Experience within ISP, MSP or telecommunications environments BENEFITS • Smart casual dress code • Free access to gym facilities • Access to a financial wellbeing platform (on successful completion of probationary period) • Access to an employee assistance programme, Virtual GP and Elderly Care support (on successful completion of probationary period) • Access to cycle to work, childcare, and electric vehicle schemes after six months • Brand new office with excellent transport links • Supportive team culture, growth and career progression HOW TO APPLY To be considered for this job vacancy, please submit your CV to our Recruitment Team who will review your details. CV’s of Job Applicants meeting this requirement will be submitted to our Client for consideration. By submitting your job application to us you are hereby giving us your express consent to submit your details to our Client for this purpose. JOB REF: AWDO-P14375 Full-Time, Permanent IT Development Engineer Jobs, Careers and Vacancies. Find a new job and work in Altrincham, Greater Manchester, North West England. Multi-Job Board Advertising and CV Sourcing Recruitment Services provided by AWD online. AWD online specialise in sourcing candidates and advertising vacancies on multiple job boards for companies on a non-commission basis. AWD online operates as an employment agency. awd online | http://www.awdo.co.uk AWD-IN-SPJ

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Frequently asked questions
Haystack features a wide range of .Net Core job opportunities, including roles such as .Net Core Developer, Backend Engineer, Full Stack Developer, and Software Architect across various industries.While experience with the latest versions of .Net Core is beneficial, many employers also consider candidates with solid proficiency in previous versions and related technologies.Yes, Haystack allows you to filter job listings by remote, hybrid, or on-site work preferences to find .Net Core positions that best suit your work style.Absolutely. Haystack hosts .Net Core jobs at various experience levels, including internships, junior developer roles, and positions designed for recent graduates.To apply, simply create an account, upload your resume, and submit applications directly on the platform. Some listings may redirect you to the employer’s application page.
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