1,372 Api Integration jobs in the United Kingdom

Are you passionate about emerging technology and innovation? The Betway / Jackpot City Graduate Software Engineering Program offers the perfect opportunity to apply your technical skills within the dynamic world of sports betting and iGaming. Create cutting-edge solutions that drive the future of gaming and deliver real business impact.

What You’ll Do:

• Write, debug and maintain high-quality code
• Collaborate with Product Managers and Engineers to design and deliver impactful features
• Work alongside Agile teams to create innovative solutions for a global audience

What You’ll Bring

• A degree in BSc Computer Science, Information Technology, or a related field
• Strong analytical problem-solving skills with a passion for technological innovation

• A passion for sports and a commitment to driving meaningful change through technology

  We’re home to a community of talented, forward-thinking teams powering Betway and Jackpot City. With a strong presence across rugby, cricket, football, Formula 1 and beyond, our platforms deliver unforgettable experiences to millions of players globally. Join a company that champions talent, nurtures fresh ideas, and offers infinite opportunity for growth and development.
  

Software Engineer (stealth mode start-up) 

A stealth mode start-up, recently established by a team of highly experienced engineers and entrepreneurs with substantial financial backing and a proven history of successful technology ventures, is seeking software engineers with a minimum of 2 years of commercial experience to join as founding members of the initial team.   

These positions are perfect for software engineers eager to pioneer novel technologies. You'll work closely with a dynamic team, facing unique challenges and bringing bold ideas to life. If innovation excites you, you enjoy solving complex problems, and you want to shape the future, this opportunity is for you. 

Given the highly technical nature of the work and their history of success through employing top-tier software engineers, they maintain high standards but also offer competitive compensation. Additionally, the package includes potentially very lucrative stock options. 

Ideal Software Engineers should possess robust programming abilities in languages such as C, C++, Objective-C, Java, C#, Python, or Golang, coupled with an outstanding academic history, preferably from top-tier universities globally. Given that this is a hardware-oriented product, expertise in electronics, mechanical engineering, or embedded systems would be advantageous. 

The company recognises that their exceptional products and commercial success stem directly from the technical dedication of their development teams; therefore, they ensure an environment that nurtures the talents of software engineers.
 

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Position : Software Engineer
Location : Soho, London - hybrid
Salary : £50-70k & stock options
Key Skills : Golang, C, C++, Java, Kotlin, Python, objectiveC, Linux, Azure, top academics

Embedded Software Engineer - Hybrid - 2 days per week in Bristol

We're looking for a mid level Embedded Software Engineer to join a consultancy team. You'll work across a broad range of projects, collaborating with cross-functional teams to deliver high-quality embedded solutions for our clients.

Your Skills & Experience:

• 3+ years of software development experience
• Strong embedded programming skills in C/C++
• Familiarity with embedded systems (e.g. STM32, CubeMX)
• Experience with embedded OSs such as FreeRTOS, Zephyr, or Embassy
• Solid understanding of communication protocols: I2C, UART, SPI, Bluetooth LE

Desirable:

• Exposure to languages such as Python, JavaScript, Swift, Java, etc.
• GUI development with Qt, TouchGFX, Crank
• Familiarity with tools like Git, Jira, Confluence
• Ability to work across the full tech stack, from hardware to UI

Please reach out if you have any questions at all!

Embedded Software Engineer - Hybrid - 2 days per week in Bristol

Software Engineer – Surrey – Hybrid – Up to £40k

Are you a passionate Software Engineer ready to make a tangible impact? Do you thrive on solving complex problems and developing scalable, high-quality solutions? Join our client’s growing Software Engineering team and support them in shaping the future of technology across critical projects that matter, within the engineering sector.

About the Role

As a Software Engineer (Level 3), you’ll be at the heart of their development efforts—designing, building, and delivering robust software solutions in collaboration with a talented, supportive team. You'll own your code, contribute to key design decisions, and help mentor Junior Engineers, all while continuing to develop your own skills and expertise.

What You’ll Be Doing…

• Build clean, efficient, and maintainable code using .NET (ASP.NET Core, C#, Web API).
li>Engage in the full software development lifecycle—planning, coding, testing, deploying. < i>Collaborate closely with engineers, managers, and wider teams to deliver scalable solutions.
• Participate in technical design discussions and contribute to architectural decisions.
• Debug and troubleshoot complex issues in real-time.
• Ensure compliance with coding, security, and documentation standards.
• Provide guidance and mentorship to junior team members.
• Help improve test coverage and contribute to evolving best practices.

What You’ll Need…

• Strong expertise in .NET technologies—including ASP.NET Core, C#, Web API.
< i>Proficiency in working with SQL databases and queries.
• Solid grasp of software development best practices and methodologies.
• Experience in code reviews, with a focus on clean, secure, and scalable code.
• Excellent communication and collaboration skills.
• Familiarity with Version Control (e.g. Git).

Even better if you have…

< i>Experience with Agile methodologies.
• Understanding of UI/UX principles and responsive design.
• Exposure to cloud platforms (Azure or AWS).
• Knowledge of CI/CD pipelines and deployment workflows.
• Basic awareness of cybersecurity principles.
• Scripting with Python or PowerShell.
• Experience with SharePoint / O365 Application development.
• Familiarity with CAD software (Bentley, AutoCAD, Autodesk, Trimble).
• Interest in Geospatial mathematics and geometry.

Why Join?

You’ll be working on meaningful projects, be part of a collaborative, inclusive and forward-thinking team and gain continuous development. 

If you're driven by innovation, growth, and the opportunity to do work that matters, apply now and I’ll be in touch shortly &#(phone number removed);

Tilt Recruitment are specialists in IT Recruitment. We work hard to find our candidates their perfect roles within fantastic organisations across the UK. If this role isn’t right for you, please still get in touch with us as we may have other roles which may suit you better.

We also offer up to £500 for every successful referral, if you know someone who matches this skill set please let us know.

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

Software Engineer - 90,000 - Hybrid

Title : Software Engineer

Company : HPC / AI

Location : London (hybrid)

Package : Up to 90,000

Overview :

A next-generation and scientifically-led HPC team have opened up an opportunity for an experienced Software Engineer with C++ and GPU expertise to join a team of exceptionally talented developers.

You will have the opportunity to shape the developmental trajectory of the business by working on high-performance greenfield projects.

This is a fantastic chance for an experienced C++ engineer with proven experience in a video or high-performance environment to join a world-class team of engineers developing truly novel solutions.

About you:

• C++ is your strongest language
• Ideally experience in Video or Audio Processing
• Experience writing performance-critical software
• Exposure to GPU technology (Vulkan API, OpenGL, OpenCL, CUDA etc.,)
• Relevant degree

Full details are available. Please don't hesitate to get in touch with (email address removed). com to learn more.

A local leading manufacturing company are looking for a Software Engineer to join their product team to help design, build, and maintain Full Stack .NET digital solutions that deliver real impact to the world for the better.

This is a chance to be part of a team that offers autonomy, support and the opportunity to grow your skills in a forward-thinking environment. Tech stack includes but not limited to - C#, .NET, SQL, JavaScript, Azure.

*This is a hybrid role where you will work 3 days in the office and 2 days from home

Company Culture / Working Environment.

• There is a strong sense of belonging and inclusivity. Everyone is encouraged to share ideas and contribute to innovation across teams
• Leadership are supportive and ensure everyone a voice which in turns help shape company culture by promoting open communication between everyone.
• Theres a strong emphasis on employee wellbeing, both in the office and on-site
• You'll get a good level of autonomy with flexibility to manage tasks and contribute meaningfully to projects.

Career Development.

• There's room to grow, whether that's between departments, developing new skills or taking on diverse challenges. The company supports dynamic career paths and continuous learning.
• There's a focus on mentoring and professional development no matter what stage of your career
• Theres a strong emphasis on employee wellbeing, both in the office and on-site
• You'll get a good level of autonomy with flexibility to manage tasks and contribute meaningfully to projects.

Your day to day will involve.

• Developing and maintaining software using .NET and C#
• Take ownership of tasks and contribute to project planning
• Collaborate across teams and present solutions to stakeholders
• Review code, support CI/CD processes, and ensure quality standards
• Mentor junior engineers and lead smaller initiatives
• Be mentored by Senior & Lead Developers

To be successful in this role as a Software Engineer you'll bring.

• A few years of experience in software development using C#, .NET, Javascript and SQL
• A solid grasp of software architecture and best practices
• Excellent communication and problem-solving abilities
• An eager to learn mindset and a passion for continuous improvement

Overall package.

• Basic salary of up to 50,000
• 26 Days holiday + Bank Holidays
• Above industry standard pension contribution
• Medical cash plan
• Flexible working
• Bonus scheme
• Income protection
• Onsite facilities
• Onsite parking

Are you confident developing with Siemens S7 PLCs and WinCC SCADA systems?

Do you have hands-on project experience delivering industrial automation or control systems from design to test?

Looking to join a respected engineering consultancy working across energy, utilities and industrial sectors on high-impact projects?

The Opportunity
A respected engineering consultancy is looking for a talented Software Engineer to join their Chesterfield team. This is a key project delivery role within their automation and controls division, focused on delivering robust, high-quality software and systems for large-scale industrial environments.
We would also welcome applications from these industries: energy, water, manufacturing, food & beverage, and life sciences.

This role would suit candidates working in these roles: Control Systems Engineer, PLC Engineer, Automation Engineer, SCADA Engineer, Industrial Software Engineer, Process Control Engineer, Systems Integrator, Electrical Controls Engineer, Instrumentation Engineer, Commissioning Engineer.

Your duties and responsibilities will be

• Deliver core modules of industrial software projects, such as PLC coding, SCADA configuration, or system testing.
li>Follow direction from project leads to ensure tasks are completed on time and to standard.
• Maintain a strong focus on technical quality and compliance throughout project phases.
• Work to company-defined processes and quality management frameworks.
• Flag potential technical challenges, risks or scope changes early
• Promote reuse and consistency in control system design by adopting modular development approaches
• Contribute to technical documentation, including system specs, test protocols and installation records
• Support pre-installation build and test (FAT) and post-installation commissioning (SAT)
• Participate in on-site activities including surveys, installation and testing when required
• Uphold safe working practices and support a proactive safety culture across the team

You will have the following qualifications and experience

• Solid track record in the design, development and testing of automation and control systems
• Proficient in Siemens S7 PLC programming and WinCC SCADA configuration
• Familiar with control panel layouts, site wiring practices and instrumentation
• HND/HNC or Degree in Electrical, Electronic or Control Systems Engineering
• Eligible for or already hold UK SC (Security Clearance)

Get in touch now
If you're seeking a new opportunity and think you have the skills and experience we are looking for, then apply now or contact Matt Kidd.


Millbank Holdings Ltd is an equal opportunities employer committed to creating an inclusive and diverse workforce. We welcome applications from all suitably qualified individuals, regardless of background, and encourage candidates from underrepresented groups to apply.
 
We are proud to be a member of the Disability Confident Scheme, and we are committed to ensuring an accessible and supportive recruitment process for everyone. If you require any adjustments at any stage, please let us know and we’ll do our best to accommodate.

Millbank operates as both an Employment Agency and an Employment Business.

Software Engineer  (Experience with Linux and C++ Required)                       

Salary: £45,000-£5,000 + Bonus 

Location: HYBRID WORKING MODEL 

We are currently recruiting for a UK leading company who are looking for an Software Engineer  to provide software expertise on some exciting projects and work closely with clients in the delivery of these projects. This is an exciting new role where the suitable software engineer will get autonomy and support at the same time. As the senior software engineer you will be required to travel to project sites across England, so please only apply to this job if you hold a valid UK driving licence. The succesful software engineer will get the opportunity to be put thrrough training and developement that is tailored to their needs. The business is doing well, with several sites in the UK, with plans to further dominant and grow its market. If you want to work for a fantastic company, please apply straight away!

Skills acquired to be a Software Engineer

• The successful Software Engineer needs to be able to develop, design and maintenance computer software using C++ and Linux
• The Succesful Software Engineer needs to be able to contribute to the entire software development life cycle, identify and resolve complex software issues, participate in code reviews, 
• The successful Software Engineer needs to hold a full UK driving licence
• The successful Software Engineer needs to be flexible to regional travel and stay away.           

The Software Engineerr  will benefit from:

• Training and development
• Remote working  
• Working on cutting edge projects 
• Pay rises
• Working for a globally reconginsed brand 

Benefits:  Company car, flexible benefits, Days, Good Salary  

Commutable: Kettering, Wellingborough, Corby, Market Harborough, Lutterworth, Thrapston, Peterborough, Leicester 

If you are interested in this role and feel that you have the right skills then please click apply at the bottom of this advert.

For further details contact Adem Halil  at Pioneer Selection – (phone number removed)

As a registered candidate with Pioneer Selection Ltd, you automatically become eligible for our referral scheme. 

You will receive £250 for every candidate we p ce in permanent employment who has been recommended by you. Terms and Conditions apply please see our w

Software Developer

Hybrid (Manchester – 2 days)

£40,000 - £65,000 + bens

Are you a software developer who thrives on scale, speed, and solving real-time challenges? Join the team and help power one of the most advanced, high performance products in the UK, a platform built for speed, seamless user experience, and massive transactional volume.

We're on the lookout for a Software Developer to help evolve and support a flagship solution — a powerful tool enabling real-time, multi-faceted interactions for users around the globe. Engineered for low latency and high throughput, this platform is designed to perform under pressure and scale with demand.

As part of this team, you’ll work at the heart of a high impact system. You’ll be immersed in the full development lifecycle, delivering innovative backend features while contributing to platform stability, scalability, and operational excellence.

What You Bring to the Table

• Hands-on experience with server-side development (services, messaging, middleware)
• Comfortable with functional or OOP – Java, Python, .Net, Golang, Erlang, C++, Haskell, Scala, or similar
• Understanding of distributed system architecture, microservices and client-server design
• Familiarity with Google Cloud Platform (or any cloud provider)
• Comfortable working in Linux environments, using GNU tools and shell commands
• Solid problem-solving ability and a passion for clean, efficient code
• Strong communication skills and a collaborative mindset
• Degree in Computer Science or relevant experience in the field

What You’ll Be Doing

• Developing low-latency, highly available, and scalable backend components
• Building concurrent, distributed systems designed to perform at scale
• Enhancing and supporting our high-traffic platform running on Linux and open-source tools
• Collaborating closely with other developers, testers, and product stakeholders
• Proactively identifying improvements and areas for optimisation
• Participating in solution design, effort estimation, and delivery planning
• Supporting and maintaining existing systems — diagnosing issues, fixing bugs, and ensuring uptime

Bonus If You.

• Have experience working in high-throughput transactional systems
• Understand real-time data processing and performance optimisation
• Love working in a fast-paced environment where innovation is encouraged
• Enjoy team-driven development and knowledge sharing

Apply now and help shape the future of high-performance digital platforms.