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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!
365 Senior Developer
Tech4 Limited
Essex
Hybrid
Senior
£80,000 - £85,000
RECENTLY POSTED
+1

365 Senior Developer is required by fast growing and highly successful global organisation.

This is a new opportunity within their experienced, dynamic IT team.

Purpose: The 365 Senior Developer will lead and innovate in the creation, customisation, and optimisation of Microsoft 365 and SharePoint solutions that drive business productivity and enhance user experience. This role involves architecting and developing applications and integrations within the Microsoft 365 ecosystem, including Power Platform and Azure integrations, while providing technical leadership and strategic guidance to projects and teams.

Role Responsibilities:

  • Manage, configure, and develop within Office 365 environments, utilising a range of Office 365 applications for document management and collaboration.
  • Design and develop applications using Power Apps (Canvas Apps), Power Automate, and Power BI to create integrated solutions that support business needs.
  • Knowledge of development using the Microsoft Graph API enhancing interconnectivity across applications.
  • Develop, customise, and manage Modern SharePoint sites, including site pages, web parts, and site templates to enhance user experience and productivity.
  • Implement Front End solutions utilising SPFx, PnP, and frameworks like JavaScript, TypeScript, and .NET Core for dynamic user experiences and functionality.
  • Integrate Office 365 applications with third-party and cloud services using APIs, JSON, and CSOM, ensuring seamless data flow and application interoperability.
  • Build Azure-based solutions integrated with Office 365, leveraging Azure Logic Apps, Function Apps, and other Azure services, with programming in JavaScript, C#, and PowerShell.
  • Practical Office 365 product experience - configuring, administration, development and deploying solutions using the full range of Office 365 apps for document management and collaboration.
  • Knowledge of SharePoint Online, OneDrive, Microsoft Teams.
  • Apply practical knowledge of SharePoint Online and associated Services (Search Service, User Profile Service, Compliance Centre, Security Centre, Content and Document Management Principles).
  • Apply practical knowledge in the use of PowerShell to automate deployments and perform maintenance tasks
  • Experience of undertaking Office 365 BAU Admin activities.
  • Implement robust security practices when working with Office365, Power Platform and Azure.
  • Demonstrate strong interpersonal skills with an ability to communicate complex technical concepts effectively to clients and stakeholders.
  • Capable of working autonomously, remotely, or collaboratively within diverse team environments.
  • Prioritise, plan, and multitask effectively within deadlines and budget constraints, applying project management principles where required and ability to work within a project team.
  • Experience working on projects, taking requirements, generating designs, and implementing a final solution.
  • Strong understanding of Application Lifecycle Management when working with Power Platform and Office365 Solutions.
  • Maintain up-to-date skills, learn new technologies as needed, and proactively identify and implement effective solutions for business requirements.

Qualifications/Skills/Experience:

  • Knowledge of Azure Servers, Web Applications, Storage Solutions, Data Solutions, Machine Learning Solutions and Networking
  • Knowledge of Web Design/Development using HTML, CSS and Adobe Creative Cloud suite of product
  • Knowledge of Azure SQL Database implementation and development with Azure Data Factory

Excellent training and career development opportunities exist for the right candidate.

Location: Essex/Hybrid

£80-85,000 + excellent benefits.

Senior Full Stack Developer
Erin Associates
Birmingham
Hybrid
Senior
£55,000
RECENTLY POSTED
+2

Senior Full Stack Developer - Senior Software Engineer (Fullstack Node.js, React, DevOps, C#)
Birmingham, West Midlands Hybrid (2 days onsite per week)
Salary: to 55k + Excellent Benefits

Erin Associates are working with a leading software house specialising in enterprise solutions that is seeking a talented Full Stack Developerto join their Birmingham-based team. This hybrid role offers the perfect balance between flexibility and collaboration, with 1-2 days a week spent onsite.

As a Senior Developer, youll play a key role in the design, development, and delivery of scalable, high-performance software solutions. Youll work across the full stack, focusing on Node.js and React, while collaborating closely with other developers, architects, and stakeholders to deliver robust applications that meet enterprise-level demands.

Key Responsibilities for this Full Stack Developer role

  • Design, develop, test, and deploy high-quality software solutions.
  • Work across the full stack with Node.js, React, and C#.
  • Build and maintain RESTful APIs for large-scale enterprise systems.
  • Collaborate effectively with stakeholders to define technical requirements and priorities.
  • Implement and maintain automated testing to ensure reliability and maintainability.
  • Contribute to CI/CD pipelines and cloud-based deployments.

Key Skills & Experience

  • 5+ years commercial experience with TypeScript/React and Node.js.
  • Proficiency in JavaScript libraries such as React or Next.js.
  • Expert knowledge of REST API development using Node.js.
  • Experience working with C# in enterprise environments.
  • Familiarity with cloud computing, infrastructure as code, and CI/CD pipelines.
  • Experience with automated testing tools such as Jest or Vitest
  • Comfortable using Azure DevOPs

The Senior Developer will be joining a friendly, agile, and innovative team, based in Birmingham where you will play an integral role in the development of data-rich, user-friendly applications

Keywords: Senior Software Engineer, Fullstack Developer, Node.js, React, TypeScript, C#, REST API, NextJS, Jest, Vitest, CI/CD, Azure DevOPs, Birmingham, West Midlands, Full Stack Engineer, Software Developer

Erin Associates Ltd is acting as an Employment Agency in relation to this vacancy.

Senior Software Engineer - (.Net)
Ocho
Belfast
Hybrid
Senior
£50,000 - £50,000
RECENTLY POSTED

Senior Software Engineer - (.Net) At a glance Software Engineer role on a mission-critical payments platform \* Focus on back-end C# / .Net \* Flexible Hybrid with Belfast city centre office \* Salary up to £50k plus comprehensive benefits package About the Company Our client is a global Fintech technology business operating at significant scale, powering commerce for organisations across international markets. Their platforms process high volumes of data daily and are built for resilience, security, and performance. The Role As a Senior Software Engineer, you will play a key hands-on role in the design and development of complex backend systems. You will contribute to architectural decisions, support best practice adoption, and take ownership of delivering high-quality features aligned to a long-term product roadmap. This is a strong step-up opportunity for engineers ready to operate with greater ownership and influence. Key Responsibilities Analyse, design, and develop scalable, high-performance backend systems \* Contribute to architectural discussions and technical design decisions \* Deliver clean, testable, and maintainable code aligned to engineering standards \* Support unit testing, validation strategies, and quality improvements \* Collaborate with cross-functional teams to deliver features on time What You'll Need 3+ years' commercial software development experience \* Experience building server-side systems in a .NET environment using C# \* Experience designing and implementing scalable web services \* Solid experience with relational databases such as SQL Server \* Experience working within Agile delivery environments \* Must be based within commuting distance of Belfast Why Apply? Competitive salary up to £50k plus benefits \* Flexible Hybrid with access to a modern Belfast city centre office \* 36 days annual leave inc. bank holidays \* Private medical and dental cover \* High-trust engineering culture with real ownership \* Clear progression pathway For more information on this opportunity, connect with Neill Ferguson on LinkedIn or submit your CV via the link below. Skills: c# .net sql fintech backend hybrid belfast Benefits: Work From Home

Power Apps Developer
Proactive Appointments
Liverpool
Hybrid
Mid - Senior
£35,000 - £50,000
RECENTLY POSTED

Up to £55,000 per annum | Hybrid (3 days on-site) | Liverpool

Our leading client are looking to onboard a Power Apps developer into their growing technology team. This is an exciting opportunity to play a key role in designing, developing and delivering innovative Microsoft-based solutions that drive business efficiency and digital transformation.

The Role

You’ll be responsible for developing, customising and integrating solutions across the Microsoft ecosystem, working closely with stakeholders to translate business requirements into scalable technical solutions.

Key Responsibilities

  • Design and develop solutions using Power Apps (Canvas & Model-Driven Apps)
  • Build and optimise workflows using Power Automate
  • Develop and maintain Power BI dashboards and reports
  • Customise and configure Dynamics 365
  • Develop Back End components using C# and .NET
  • Work with SQL databases for data integration and reporting
  • Deploy and manage solutions within Azure
  • Support and enhance solutions across the Microsoft 365 (M365) environment
  • Collaborate with cross-functional teams to deliver end-to-end Power Platform solutions

Key Skills & Experience

  • Proven experience as a Power Platform Developer
  • Strong knowledge of Power Apps, Power Automate, and Power BI
  • Experience working with Dynamics 365
  • Solid development background in C# and .NET
  • Strong SQL skills
  • Experience working with Azure services
  • Understanding of Microsoft 365 integrations
  • Strong problem-solving skills and stakeholder communication

Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered suitable for interview will be contacted.

Proactive Appointments Limited operates as an employment agency and employment business and is an equal opportunities organisation

We take our obligations to protect your personal data very seriously. Any information provided to us will be processed as detailed in our Privacy Notice, a copy of which can be found on our website

AI Technical Lead
Fruition Group
Leeds
Hybrid
Senior
£100,000

Job Title: AI Technical Lead
Location: Leeds / Hybrid, 2x days per week
Salary: £80,000-£100,000 + benefits

Why Apply?

This is an opportunity to step into a pivotal Technical Lead role for a forward-thinking, technology consultancy delivering cutting-edge AI solutions. You’ll shape architecture, engineering standards, and delivery outcomes across high-impact projects while working with modern AI/ML tooling, cloud technologies, and scalable engineering practices.

Technical Lead - AI Responsibilities

  • Lead AI-focused architecture, design, and engineering delivery across client engagements.
  • Oversee end-to-end implementation of AI/ML solutions, from concept through to production.
  • Act as the senior engineering authority, ensuring high-quality outputs across wider teams.
  • Establish best-practice engineering ecosystems, including CI/CD pipelines, automation, developer tooling and QA methodologies.
  • Maintain expertise across modern tech stacks, cloud platforms and industry trends, including LLMs and classic ML approaches.
  • Collaborate with cross-functional teams to translate technical requirements into actionable engineering plans.
  • Build strong relationships with stakeholders, providing guidance and thought leadership throughout delivery.

Technical Lead - AI Requirements

  • Strong commercial experience with AI and ML tools, frameworks, and delivery methods.
  • Confident acting as the ‘first engineer on the ground’ to drive direction and standards.
  • Hands-on proficiency with cloud platforms and modern engineering patterns.
  • Full-stack technical capability across front-end and back-end technologies (e.g., React, Vue, Flutter, C#, Java, Python, Node, Go).
  • Broad exposure to CI/CD tooling, automation technologies, and test engineering.
  • Strong understanding of agile principles with experience embedding best practice across teams.
  • Excellent communication, emotional intelligence, and stakeholder engagement skills.
  • Analytical mindset with strong attention to detail and comfort with complexity and evolving AI landscapes.

What’s in it for me?

  • Competitive salary and comprehensive healthcare.
  • Hybrid/remote working options for improved work-life balance.
  • Ongoing professional development, including AI/ML upskilling and access to technical communities.
  • Opportunity to work with modern technologies and shape high-value digital solutions.
  • Exposure to a broad portfolio of impactful projects across multiple industries.

We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation or age.

Development Support Engineer
Pearson Whiffin Recruitment Ltd
Kent
Remote or hybrid
Graduate - Junior
£25,000 - £30,000

Systems Support Engineer

We re looking for a System Support Engineer with strong Microsoft skills who wants to transition into a C# Development position.

If you re solid with Active Directory, Office 365, and Windows environments and you have either programming, networking, or database experience this is your opportunity to grow into a mixed development and support role with structured training and real project exposure.

We need someone who already has:

  • Strong experience with Active Directory (support, troubleshooting)
  • Solid knowledge of Office 365 / Microsoft 365 administration
  • Excellent understanding of Windows Server & Desktop environments
  • Experience in at least one of the following:
    • Programming (C#, ASP WinForms)
    • Networking (TCP/IP, firewalls, routing, VLANs)
    • Database systems (SQL Server or similar)

You re analytical, proactive, and enjoy solving technical problems but you’re ready for more than day-to-day support.

This role starts within systems support while progressively transitioning you into a C#/.NET Development function.

You will:

  • Support and enhance internal infrastructure systems
  • Learn and develop in C# and .NET
  • Contribute to internal application development projects
  • Help design tools that improve automation and efficiency
  • Deliver technical training and documentation
  • Participate in structured development mentoring
Development Support Engineer
Pearson Whiffin IT & Digital
Folkestone
Remote or hybrid
Graduate - Junior
£30,000

Systems Support Engineer

Were looking for a System Support Engineer with strong Microsoft skills who wants to transition into a C# Development position.

If youre solid with Active Directory, Office 365, and Windows environments and you have either programming, networking, or database experience this is your opportunity to grow into a mixed development and support role with structured training and real project exposure.

We need someone who already has:

  • Strong experience with Active Directory (support, troubleshooting)
  • Solid knowledge of Office 365 / Microsoft 365 administration
  • Excellent understanding of Windows Server & Desktop environments
  • Experience in at least one of the following:
    • Programming (C#, ASP WinForms)
    • Networking (TCP/IP, firewalls, routing, VLANs)
    • Database systems (SQL Server or similar)

Youre analytical, proactive, and enjoy solving technical problems but you’re ready for more than day-to-day support.

This role starts within systems support while progressively transitioning you into a C#/.NET Development function.

You will:

  • Support and enhance internal infrastructure systems
  • Learn and develop in C# and .NET
  • Contribute to internal application development projects
  • Help design tools that improve automation and efficiency
  • Deliver technical training and documentation
  • Participate in structured development mentoring
Embedded Software Engineer
TQR
Ivybridge
In office
Junior - Mid
£40,000

About the Role

We are looking for a skilled Embedded Software Engineer to join a growing engineering team working on next-generation control solutions. This is a hands-on role offering the chance to develop technically challenging products at the intersection of embedded software, power electronics, and motor control. You will be involved in the full product lifecycle from concept to production ensuring high-performance, robust embedded solutions.

Key Responsibilities

Design and implement real-time embedded software for motor control applications.

Develop firmware for Microchip PIC microcontrollers (bare-metal and RTOS-based systems).

Optimise code for performance, memory efficiency, and maintainability.

Design and maintain embedded graphical user interfaces (GUIs) for motor control systems, ensuring intuitive operation and reliability.

Interface with low-level hardware peripherals (SPI, I2C, UART, USB).

Implement and maintain communication protocols such as Modbus, Modbus TCP, Ethernet/IP, and Profibus DP.

Support hardware development activities, including electronic circuit design and power electronics integration.

Contribute to the development of PC-based configuration and remote-control tools.

Essential Requirements

Degree in Electronics, Computer Science, Engineering, or equivalent experience.

Strong experience in real-time embedded C development.

Proven experience programming Microchip PIC microcontrollers.

Solid understanding of low-level hardware/software interaction.

Experience working in constrained embedded environments.

Familiarity with debugging tools such as oscilloscopes, logic analysers, and in-circuit debuggers.

Experience using source control systems and participating in peer code reviews.

Desirable Skills

Ability to design and troubleshoot electronic circuits.

PCB design experience (Altium Designer preferred).

Understanding of motor control principles and electrical systems integration.

Experience with PC-based development in C# and/or Python.

Experience with embedded network interfaces (e.g., HMS Anybus modules).

Whats on Offer

Competitive salary based on experience.

Healthcare, contributory pension, and life assurance.

25 days annual leave.

On-site parking.

Modern, air-conditioned working environment.

Opportunity to work on innovative products sold internationally.

If you are interested or have the relevant experience and are currently looking for a new challenge then please submit an up to date CV by clicking the apply button.

By applying for this position, you confirm that you consent to the processing of your personal data in accordance with the General Data Protection Regulation (GDPR) for the purposes of recruitment, employment and working finding service.

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D365 Developer
Sanderson Recruitment
London
Hybrid
Mid
£60,000

Role: D365 Developer
Location: London
Salary: £60,000
Days in the office: 1-2days a week

My client is looking for a D365 Developer to join their team. This is a rare opportunity to join at the early stage of an D365 implementation, where you’ll help shape how Dynamics is rolled out within the organisation.

Experience/ responsibility

  • Design and build bespoke customisation’s within Dynamics 365
  • Solid experience with C#, Javascript, Power Automate, PowerBI and Power Apps
  • Develop custom entities, forms, plugins, and workflows
  • Build integration’s between CRM and other enterprise systems
  • Work closely with the System Owner and Configurator
  • Contribute to backlog refinement and solution design
  • Recommend improvements based on best practice and prior experience

If this role sounds of interest and you would like to know more do not hesitate to contact me on

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Azure Cloud Engineer
Syntax Consultancy
London
Hybrid
Mid - Senior
£550/day - £600/day
+4

Azure Cloud Engineer (SC Cleared)

London (Hybrid)

6 Month Contract

to £550/day-£600/day (Inside IR35)

Azure Cloud Infrastructure Engineer needed with active SC Security Clearance , AZURE Terraform code.

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

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

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

  • Experienced Azure Cloud Engineer required to support cloud transformation programme.
  • Must have in-depth experienced in AZURE Terraform code, GitHub Actions, implementation of both CI/CD.
  • Hands-on experience in Software Development.
  • Experience implementing or maintaining a CI/CD pipeline using Github Actions, Terraform, and Azure.
  • Good working knowledge of PowerShell, SQL of the installation and configuration of Windows based systems.
  • Provide automated testing as you develop and Strong written and verbal communication skills.
  • Experience of Agile methods, Azure DevOps, CI/CD pipeline maintenance + automation Scripting, also strongly preferred.
  • Ability to plan, schedule and manage a demanding workload. Experienced in mentoring and training junior engineers.

Desirable:

  • Experience implementing or maintaining a CI/CD pipeline using Github Actions, Terraform, and Azure.
  • Azure Monitoring. Software development experience using C# and SQL Server. Packer, Kubernetes, AKS, Flux or Helm
  • Banking/Financial Services domain experience preferred.
  • Must hold active SC Security Clearance used on a project within the past 12 Months.
Software Test & Automation Engineer
Euro-Projects Recruitment Ltd
Salisbury
Hybrid
Junior - Mid
£50,000 - £60,000
+1

We are recruiting for a Software Test & Automation Engineer to join a specialist engineering company operating in a regulated industrial environment. The business develops software used within high-precision equipment supplied to the pharmaceutical sector. Testing is currently largely manual and system-based, carried out directly on physical machines. The company now wants to introduce greater automation and modernise its test approach. This is an opportunity to help shape that evolution. You will inherit an established test and validation function, work alongside experienced engineers, and gradually introduce more structured automated testing practices where appropriate. What You’ll Be Doing \* Carrying out hands-on system-level software testing \* Working directly with industrial equipment during validation cycles \* Designing and implementing automated test scripts or frameworks \* Supporting structured validation documentation and compliance requirements \* Contributing to the development of a longer-term automation strategy \* Collaborating closely with embedded and systems engineers What We’re Looking For \* Experience in software testing at application or system level \* Exposure to automated testing concepts and tools \* Ability to write scripts in languages such as Python, C#, or similar \* Experience using test management and defect tracking tools (Jira, TestRail, Zephyr, Xray etc.) \* Understanding of version control and release processes \* Experience in regulated or quality-focused environments advantageous The Opportunity This is not a corporate DevOps pipeline role. It is an engineering-led SME environment where you will have real influence. There is scope to: \* Build automation capability from the ground up \* Modernise a legacy manual process \* Develop into a future technical lead within the test function Hybrid working is supported, but candidates must be able to attend site when equipment-based testing is required. Keywords Software Test Engineer, Automation Engineer, QA Automation Engineer, Software Testing, Automated Testing, Selenium, Python, C#, Test Frameworks, CI/CD, Jira, Git, TestRail, Zephyr, Industrial Software, Embedded Systems Testing, Regulated Industry, Pharmaceutical Equipment, System Testing, Hybrid Engineering Jobs, Salisbury Engineering Roles. For more information, please contact James Brocklehurst at Euro Projects Recruitment for a confidential discussion

Software Developer
Vermillion Analytics
Epsom
Hybrid
Mid - Senior
£50,000 - £60,000

Make an Impact with Technology That Matters Imagine building software that millions of people rely on to receive critical information. You will be shaping a platform that supports government bodies, national institutions, and education services, helping deliver communications efficiently, securely, and ethically. Right now, a brand-new platform is being built from scratch, and this is your chance to influence its architecture, technology choices, and future direction. You will be joining at the perfect moment to make your mark. What You Will Do \* Shape the architecture of a next-generation SaaS platform \* Build robust microservices that scale and perform \* Develop in .NET and C# on the backend \* Create intuitive, high-performing frontends with React and TypeScript \* Deploy cloud-native solutions in Azure \* Collaborate closely with senior technical leadership, helping set engineering standards \* See your work directly impact real-world public sector users \* You will take ownership, make decisions that matter, and help define how the platform evolves. Why You Will Love This Role \* You will influence a product from day one, your ideas and decisions will shape the future \* You will work on meaningful projects that make public sector communications more reliable, efficient, and ethical \* You will have autonomy once onboarded, with flexibility to work remotely \* You will be part of a small, collaborative team where your input is heard and valued \* You will learn and grow alongside highly experienced technical leadership What You Bring \* Deep experience in .NET/C# and building backend services \* Strong React skills, with a solid understanding of its fundamentals \* Experience designing or contributing to microservices architectures \* Confidence in containerisation (Docker) and cloud-native solutions (Azure) \* A solid grasp of SOLID principles, clean architecture, and maintainable code Bonus if you have worked in SaaS, public sector systems, or scalable high-availability platforms. How You Will Start Month 1 – Office-Based in Epsom \* Weeks 1–2: Immerse yourself in the product and business, meet the team, and understand the roadmap \* Weeks 3–4: Start hands-on development, working closely with the CTO, gradually taking ownership and ramping up at a pace that suits you After onboarding: \* Work remotely with flexible arrangements \* Required office attendance once every 3-week sprint (Mondays) \* Take full ownership of your work and influence the platform All recent hires have been fully productive within the first month. You can too. Who You Are You are someone who: \* Wants to build things properly from the ground up \* Loves solving complex technical challenges \* Cares about clean, maintainable architecture \* Wants your work to have visible, real-world impact \* Thrives in a collaborative team but can work autonomously \* Are happy to travel to Epsom, particularly during the first month for onboarding and induction \* Has the right to work in the UK (please note that visa sponsorship is not available) If you want more than just another job and want to help shape a platform that matters, this is the role for you

Embedded Software Engineer
TQR Consultancy Ltd
Ivybridge
In office
Mid
£40,000

We are looking for a skilled Embedded Software Engineer to join a growing engineering team working on next-generation control solutions. This is a hands-on role offering the chance to develop technically challenging products at the intersection of embedded software, power electronics, and motor control. You will be involved in the full product lifecycle from concept to production ensuring high-performance, robust embedded solutions. Key Responsibilities \* Design and implement real-time embedded software for motor control applications. \* Develop firmware for Microchip PIC microcontrollers (bare-metal and RTOS-based systems). \* Optimise code for performance, memory efficiency, and maintainability. \* Design and maintain embedded graphical user interfaces (GUIs) for motor control systems, ensuring intuitive operation and reliability. \* Interface with low-level hardware peripherals (SPI, I2C, UART, USB). \* Implement and maintain communication protocols such as Modbus, Modbus TCP, Ethernet/IP, and Profibus DP. \* Support hardware development activities, including electronic circuit design and power electronics integration. \* Contribute to the development of PC-based configuration and remote-control tools. Essential Requirements \* Degree in Electronics, Computer Science, Engineering, or equivalent experience. \* Strong experience in real-time embedded C development. \* Proven experience programming Microchip PIC microcontrollers. \* Solid understanding of low-level hardware/software interaction. \* Experience working in constrained embedded environments. \* Familiarity with debugging tools such as oscilloscopes, logic analysers, and in-circuit debuggers. \* Experience using source control systems and participating in peer code reviews. Desirable Skills \* Ability to design and troubleshoot electronic circuits. \* PCB design experience (Altium Designer preferred). \* Understanding of motor control principles and electrical systems integration. \* Experience with PC-based development in C# and/or Python. \* Experience with embedded network interfaces (e.g., HMS Anybus modules). What’s on Offer \* Competitive salary based on experience. \* Healthcare, contributory pension, and life assurance. \* 25 days annual leave. \* On-site parking. \* Modern, air-conditioned working environment. \* Opportunity to work on innovative products sold internationally. If you are interested or have the relevant experience and are currently looking for a new challenge then please submit an up to date CV by clicking the ‘apply’ button. By applying for this position, you confirm that you consent to the processing of your personal data in accordance with the General Data Protection Regulation (GDPR) for the purposes of recruitment, employment and working finding service

C# WPF Software Engineer
Ripple
Cambridge
Hybrid
Mid - Senior
£500/day - £550/day
+1

We are seeking an experience C#/.NET Developer to join a specialised R&D group focused on the intersection of sophisticated software and high-value hardware.

* This position is being offered a 12 month contract basis, working inside IR35.

* Hybrid working, candidates should be able to travel to the Cambridge area when required.

This role involves developing thick-client desktop architecture and managing the challenges of real-time hardware interfacing.

You will contribute to a modern Windows based platform, designing and developing control software for unique, market-leading instrumentation used in global research and development.

Responsibilities

* Lead the development of control software for a wide-ranging, complex product portfolio.

* Work with application specialists and UX designers to ensure high-performance usability for technical end-users.

* Document software designs to facilitate long-term maintenance and system reliability.

* Manage code integrity and versioning within a structured Azure DevOps environment.

* Operate within ISO 9001 & 14001 frameworks to ensure rigorous change control standards.

* Maintain an expert-level skillset in Windows application development to influence future R&D roadmaps.

Requirements

* Extensive commercial experience in software development.

* C#

* .NET 4+

* WPF

* MVVM

* Git

* Azure DevOps

* Visual Studio (2022/2026)

* Windows 11 development

Desirable Skills

* Experience in hardware control or interfacing software with physical devices.

* Software architecture and technical leadership.

* Image processing, ML/AI, or C++.

This position offers the opportunity to join an increasingly software-centric R&D group where your work manages complex physical systems within a cross-site, multi-functional team.

Ripple Recruitment is acting as an employment agency for this vacancy. My client is an equal opportunity employer committed to fostering a diverse and inclusive workplace. Due to high volumes of interest, we can only respond to shortlisted applicants

NET Software Developer
EMBS Engineering
Derby
Hybrid
Mid
£50,000 - £60,000
+3

We’re looking for a .NET Software Developer to join an established engineering team working across modern .NET applications. Software Developer Core Tech: .NET | ASP.NET MVC | SQL Server | Azure Location: Derby/Hybrid (1–2 days in the office every other week) Salary: c£55,000 + Benefits You’ll be working across a range of business-critical applications, contributing to ongoing development, maintenance, and improvement. Day to day, you’ll be involved in everything from feature builds through to investigating issues and refining how the team works. Key responsibilities include \* Designing and building new functionality within ASP.NET MVC applications \* Developing well-structured backend code using C# and .NET 8 \* Working with Entity Framework Core to manage data access and performance \* Writing and optimising SQL Server queries \* Experience working in Microsoft Azure environments \* Debugging and resolving issues across the application stack \* Reviewing code and contributing to shared development standards \* Working closely with QA, Product, and other developers throughout delivery What We’re Looking For \* Solid commercial experience with ASP.NET MVC and C# \* Practical experience using Entity Framework Core and LINQ \* Confidence working with SQL Server in a production environment \* Azure Cloud experience \* Basic front-end capability using JavaScript, jQuery, and CSS \* Experience using Git for version control \* Awareness of unit testing and an ability to write and maintain simple test Useful, But Not Essential \* Familiarity with CI/CD pipelines, ideally using Azure DevOps \* Knowledge of clean code practices, SOLID principles, or modern architectural patterns What’s On Offer \* Salary to c£55,000 \* Hybrid working arrangement and a stable, well-established development environment \* Supportive team culture with room to grow technically If you’re looking for a role that offers variety, stability, and the chance to improve real-world systems, get in touch to learn more or apply now

C# WPF Software Engineer
Ripple
Cambridge
Hybrid
Mid - Senior
£500/day - £550/day
+1

We are seeking an experience C#/.NET Developer to join a specialised R&D group focused on the intersection of sophisticated software and high-value hardware.

  • This position is being offered a 12 month contract basis, working inside IR35.
  • Hybrid working, candidates should be able to travel to the Cambridge area when required.

This role involves developing thick-client desktop architecture and managing the challenges of real-time hardware interfacing.

You will contribute to a modern Windows based platform, designing and developing control software for unique, market-leading instrumentation used in global research and development.

Responsibilities

  • Lead the development of control software for a wide-ranging, complex product portfolio.
  • Work with application specialists and UX designers to ensure high-performance usability for technical end-users.
  • Document software designs to facilitate long-term maintenance and system reliability.
  • Manage code integrity and versioning within a structured Azure DevOps environment.
  • Operate within ISO 9001 & 14001 frameworks to ensure rigorous change control standards.
  • Maintain an expert-level skillset in Windows application development to influence future R&D roadmaps.

Requirements

  • Extensive commercial experience in software development.
  • C#
  • .NET 4+
  • WPF
  • MVVM
  • Git
  • Azure DevOps
  • Visual Studio (2022/2026)
  • Windows 11 development

Desirable Skills

  • Experience in hardware control or interfacing software with physical devices.
  • Software architecture and technical leadership.
  • Image processing, ML/AI, or C++.

This position offers the opportunity to join an increasingly software-centric R&D group where your work manages complex physical systems within a cross-site, multi-functional team.

Ripple Recruitment is acting as an employment agency for this vacancy. My client is an equal opportunity employer committed to fostering a diverse and inclusive workplace. Due to high volumes of interest, we can only respond to shortlisted applicants.

Senior Embedded Software Engineer
Platform Recruitment
Newtown
Hybrid
Senior
Private salary

Competitive Salary Newtown, Wales Hybrid

A leading industrial automation company is seeking a Senior Embedded Software Engineer to design and develop real-time embedded software for production products. You ll work end-to-end, from concept to deployment, with real ownership and technical autonomy.

Key Responsibilities

  • Develop embedded C/C++ software for real-time systems and Embedded Linux
  • Design and review software and system requirements
  • Contribute to architecture, planning, and occasional technical project leadership
  • Perform automated and manual software testing
  • Mentor junior engineers and conduct code reviews

Essential Skills & Experience

  • BSc or higher in Engineering or related discipline
  • Strong C++ experience in real-time and Linux environments
  • Experience with communication stacks (TCP/IP, EtherCAT)
  • Embedded development on ARM microcontrollers (e.g. NXP, Renesas)

Desirable

  • Experience with Python, C#, .NET, or C
  • Background in industrial automation, drive systems, or automotive
  • Exposure to safety-critical or high-reliability systems

Benefits

  • Competitive salary
  • Hybrid & flexible working
  • EV car scheme
  • 25 days holiday (increasing annually) + buy/sell
  • Relocation and visa sponsorship available (case by case)

Apply now to join a growing automation business delivering real-world embedded software solutions.

Frontend Developer
Rise Technical Recruitment
Gloucestershire
Hybrid
Junior - Mid
£35,000 - £38,000

Stonehouse, Gloucestershire
Hybrid - 3 days in, 2 from home
35,000- 38,000 + 33 Days Annual Leave + Training + Progression + Hybrid

Excellent opportunity for a frontend developer to join a bespoke consultancy offering a friendly and welcoming team atmosphere, a brilliant training and development programme to help further your career into a Senior Dev, and a good work/life balance!

This company are a bespoke consultancy working with an exceptionally diverse customer base ranging from supermarkets to parliament! Due to an increase in workload they are looking to add a frontend developer to their team on a permanent basis.

In this role you will predominantly work with JavaScript, HTML, CSS, C#, TypeScript, and Angular. You’ll join a team of 7 Software Developers and work on projects together. There will be a large variety of clients so no two days will feel the same.

The ideal candidate will be a Frontend Developer with commercial experience. Candidates must be commutable to Stonehouse, Gloucestershire at least 3 days a week. The more exposure to the following the better but having all of them isn’t essential: JavaScript, HTML, CSS, React, Angular, TypeScript, and C#.

This is a fantastic opportunity to join a brilliant business offering excellent progression routes, a hybrid working offering, and a highly welcoming and friendly team dynamic.

The Role:
Frontend Development
Hybrid - Stonehouse, Gloucestershire
JS, CSS, HTML, C#, Typescript, Angular, C#, React
Full time permanent

The Person:
Frontend Developer
Combination of the following: JS, CSS, HTML, Typescript, C#, Angular, React
Commutable to Stonehouse
Full right to work in the UK

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.

Principal C# .Net Developer
The Portfolio Group
Manchester
Remote or hybrid
Senior
£80,000

Principal Backend Developer (C# / .NET)

The Opportunity

This is a career-defining role for a Principal Backend Developer who wants to be at the forefront of a growing SaaS organisation. You’ll be joining a company that’s scaling rapidly, building innovative products that make a real difference to its customers. This role offers the chance to take ownership of backend systems, shape best practice, and mentor the next generation of engineers.

The Role

You’ll provide technical leadership across backend development, ensuring systems are robust, scalable, and future-proof. Working closely with product owners, testers, and front-end teams, you’ll bring engineering excellence into every decision. With a stack centred on C#, .NET, cloud services, and automation frameworks, you’ll be both hands-on in coding and guiding others to deliver their best work.

Day-to-day responsibilities

  • Architect and build scalable backend services in C# / .NET
  • Drive adoption of clean coding practices, design patterns, and SOLID principles
  • Mentor engineers, fostering a culture of growth, learning, and high performance
  • Collaborate with product owners to refine requirements and translate them into technical solutions
  • Integrate automation testing (Playwright) and CI/CD pipelines to ensure code quality
  • Lead technical discussions, setting direction on tools, frameworks, and approaches
  • Troubleshoot and resolve complex technical challenges across backend services
  • Optimise system performance and ensure resilience across platforms
  • Review code and guide engineering standards across the team
  • Contribute to product strategy by aligning technical roadmaps with business goals

What you bring to the team

  • Strong experience developing backend systems with C# and .NET
  • Deep knowledge of cloud environments (Azure preferred)
  • Experience in designing APIs and microservices at scale
  • Solid understanding of automation testing tools (Playwright desirable)
  • Leadership experience - mentoring, coaching, and guiding engineering teams
  • Strong problem-solving skills with an eye for performance optimisation
  • Enthusiasm for delivering quality solutions in a SaaS environment

Send your CV now

50249MS

INDMANS

Portfolio Payroll Ltd is acting as an Employment Agency in relation to this vacancy.

Software Developer (.NET / SQL)
Reality Solutions Ltd
Yorkshire
Hybrid
Junior - Mid
£26,660 - £32,000
+2

Job Title: Software Developer (.NET / SQL) - Junior / Mid-Level

Location: Hull, UK (Hybrid / Office)

Salary: 26,660 - 32,000 per annum

Job type: Full-time, Permanent

Reality Solutions is a leading regional IT Solutions Provider and Sage Accredited Business Partner based in Hull. We are looking for a Software Developer with experience in VB.NET and/or C#.NET to join our development team. You will work on internal and client-facing business systems, contributing to both ongoing product development and new feature delivery.

About the role

This role suits a developer with solid foundations in .NET and SQL who is comfortable working across backend logic, database interaction, and supporting user-facing applications. You will be involved in maintaining existing systems while also helping modernise parts of the platform over time.

Key Responsibilities:

  • Develop and maintain applications using VB.NET and C#.NET
  • Design, write, and optimise SQL Server queries and stored procedures
  • Implement new features and improve existing functionality
  • Debug, test, and resolve software defects
  • Work with internal stakeholders to understand business requirements
  • Maintain and improve legacy systems while contributing to modernisation efforts
  • Integrate with third-party systems and APIs
  • Contribute to documentation and handover processes
  • Follow version control and release procedures

About you

We are looking for a practical problem solver who can work through real business scenarios. You should be comfortable working with legacy code and improving it safely, and a clear communicator with non-technical stakeholders. We value attention to detail, ownership of delivered work, and a willingness to learn and expand into newer technologies.

Required Skills & Experience:

  • Commercial experience with .NET development (VB.NET and/or C#.NET)
  • Strong working knowledge of SQL Server and relational database concepts
  • Experience writing queries, joins, views, and stored procedures
  • Understanding of application debugging and troubleshooting
  • Familiarity with Git-based version control workflows
  • Ability to work independently on defined tasks
  • Good understanding of software structure and maintainability

Desirable Skills:

  • Experience with ASP.NET / .NET Core / Web APIs
  • Exposure to ERP or business management systems (Sage 200)
  • Experience integrating with REST APIs
  • Familiarity with Power Platform / Power Apps
  • Mobile development exposure (e.g., Flutter / Dart)
  • Cloud exposure (Azure or AWS)
  • DevOps or CI/CD pipeline familiarity

What we offer

  • Varied work across multiple business systems
  • Opportunity to modernise legacy applications
  • Exposure to full development lifecycle
  • Supportive team environment with room to grow
  • Healthy balanced work-life environment

Please click the APPLY button to send your CV and covering letter for this role.

Candidates with the relevant experience and job titles of; .NET Developer, C# Developer, VB.NET Developer, SQL Developer, Junior Developer, Mid-Level Developer, Software Engineer, Database Developer, and Backend Developer may be suitable for this role.

Embedded Software Engineer
IO
Tewkesbury
Hybrid
Mid - Senior
£65,000 - £80,000
+2

Salary: Up to 80,000 DOE

Fully On-Site

Join a Leading Organisation Shaping Defence and Security Technologies
Our Client operates at the forefront of the defence, security, and intelligence industries, delivering innovative solutions across space, air, land, sea, and cyber domains. Known for its commitment to excellence, growth, and fostering an inclusive, dynamic environment, the organisation is recognised as a trusted provider of mission-critical technology. Employees are motivated by impactful work that enhances national security and advances cutting-edge systems globally. If you’re passionate about software engineering and eager to contribute to meaningful projects in a collaborative setting, this is an exciting opportunity to join a highly regarded team that values innovation, professional development, and work-life balance.

Role Overview
Due to ongoing growth and strategic project expansions, our Client is seeking three experienced Embedded Software Engineers to play a pivotal role in developing complex and reliable software solutions. This is a full-time, permanent role based onsite at a key site, supporting critical projects that require close teamwork and operational presence. The position offers the chance to work on high-profile defence projects, delivering technology that makes a difference on a national level. It’s a fantastic opportunity for mid to senior level engineers looking to specialise further in embedded systems within a reputable organisation committed to technological excellence.

Key Responsibilities

  • Contribute to the development and maintenance of sophisticated embedded software systems, ensuring high standards of reliability and performance.
  • Collaborate closely with multidisciplinary teams to define system requirements and translate them into functional software designs.
  • Produce detailed low-level design documentation, implement solutions, and thoroughly test components in adherence to project specifications.
  • Uphold best coding practices and contribute to continuous improvement initiatives across the development lifecycle.
  • Support and mentor less experienced colleagues, fostering a collaborative team environment.
  • Participate in project reviews, technical discussions, and customer engagements, maintaining focus on cost and schedule targets.

Essential Skills & Experience

  • At least five years’ hands-on experience in embedded software development, specifically utilising C++ within a professional environment.
  • Strong proficiency with modern C++ standards (C+ or newer) and deep understanding of object-oriented programming principles.
  • Experience working with C or C++ in embedded contexts, including real-time constraints.
  • Knowledge of version control systems such as Git or GitLab.
  • Familiarity with development methodologies including V-model, Waterfall, or Agile frameworks.
  • Experience using project management and collaboration tools like Jira, Confluence, or Mantis.
  • A relevant technical degree or equivalent experience in Computer Science, Software Engineering, or related fields.
  • Eligibility for UK security clearance at SC level or above; willingness to undergo DV clearance is advantageous.
  • Candidates must be UK nationals only, with sole British nationality being essential.

Desirable Skills & Additional Experience

  • Practical experience with scripting languages such as Python or C#.
  • Familiarity with multi-disciplinary project environments and team mentorship roles.
  • Knowledge of cyber and electronic warfare systems is a plus but not essential.
  • Experience in developing software for high-security or classified projects.

Why Join Our Client?

  • Opportunity to impact national security through innovative defence projects.
  • Secured, stable employment with a recognised leader in defence technology.
  • Competitive remuneration, with a sign-on bonus available.
  • Flexible working arrangements considered upon request.
  • Comprehensive benefits, including private medical insurance, pension contributions, and additional health and wellbeing support.
  • Support for relocation and administrative processes for suitable candidates.

Next Steps
If you are an experienced embedded software engineer passionate about delivering high-quality, mission-critical solutions, we want to hear from you. Candidates should submit their CV highlighting relevant skills and experience. Applications from those eager to grow their career and contribute to vital national projects are strongly encouraged.
Join us in supporting our national defence-apply today to become part of a team dedicated to excellence and innovation.

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.
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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.
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