Senior Software Engineer Jobs in the UK

1,076 to 1,100 of 1,262 Senior Software Engineer Jobs in the UK

Senior Software Engineer - Flutter

slough, south east england, united kingdom
Harvey Nash
Senior/Technical Lead - Flutter (Mainly hands-on with oversight of a team of 4) London (Hybrid) - 2/3x a week onsite intially for first couple of months then potential to be more remote £90,000-£10,000 We’re partnering with a fast-growing company that’s transforming how people interact with tech. Join a workplace-tech … of the world’s most advanced smart-building platforms, powered by digital twins, real-time analytics, and seamless third-party integrations They’re now looking for a Lead Mobile Engineer with deep Flutter expertise to take ownership of their client-facing apps. This is a hands-on technical leadership role, you’ll set the technical direction, mentor a small … team, and work directly with senior leadership to deliver the roadmap. What you’ll be doing: Own the mobile roadmap & architecture (Flutter, Swift, Java) Lead from a technical perspective: design, code, review, and mentor Integrate with complex third-party SDKs (BLE, mobile access, indoor wayfinding) Drive engineering excellence in testing, performance, monitoring, and CI/CD Collaborate closely with More ❯
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Senior Software Engineer - Flutter

london (city of london), south east england, united kingdom
Harvey Nash
Senior/Technical Lead - Flutter (Mainly hands-on with oversight of a team of 4) London (Hybrid) - 2/3x a week onsite intially for first couple of months then potential to be more remote £90,000-£10,000 We’re partnering with a fast-growing company that’s transforming how people interact with tech. Join a workplace-tech … of the world’s most advanced smart-building platforms, powered by digital twins, real-time analytics, and seamless third-party integrations They’re now looking for a Lead Mobile Engineer with deep Flutter expertise to take ownership of their client-facing apps. This is a hands-on technical leadership role, you’ll set the technical direction, mentor a small … team, and work directly with senior leadership to deliver the roadmap. What you’ll be doing: Own the mobile roadmap & architecture (Flutter, Swift, Java) Lead from a technical perspective: design, code, review, and mentor Integrate with complex third-party SDKs (BLE, mobile access, indoor wayfinding) Drive engineering excellence in testing, performance, monitoring, and CI/CD Collaborate closely with More ❯
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Senior Software Engineer (Web Application Engineering)

London, United Kingdom
The Difference Engine
Are you an experienced Lead Engineer looking who enjoys green field development? As a Lead Engineer, have you enjoyed working in rapid scale-up environments where you've had direct access to senior leadership, significant influence on technical strategy alongside fostering a culture of best practice and technical innovation within your teams. Our client, profitable, well-funded … and growing at 30% YoY, is looking for a Lead Engineer to run their Web Apps team. Having found product/market fit, now is a key inflection point as they embark on a major re-engineering effort to position themselves for scale and to support the large backlog of clients ready to onboard to their platform. As an … established Lead Engineer, you'll have experience of the following: At least 10+ years commercial software engineering experience, across front and Back End tech stacks A STEM degree, with a solid understanding of software engineering/computer science fundamentals While a polyglot mindset is important, a background in a strongly typed OO language is highly valued (C# More ❯
Employment Type: Permanent
Salary: GBP 120,000 Annual
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Senior Backend Software Engineer

England, United Kingdom
HeliosX Group
and easier for everyone. Come be a part of making our dream of easier and faster healthcare a reality! About the role: We are looking for talented and experienced Senior Software Engineers to work on our range of successful eCommerce sites and help sustain our trajectory of rapid growth. We operate in an Agile way and encourage innovative More ❯
Employment Type: Permanent
Salary: GBP Annual
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Senior Software Engineer (C# / SQL Server)

Glasgow, Lanarkshire, United Kingdom
Senior Python Developer We re looking for a Senior Python Developer to join a growing team based in Glasgow. This role offers the chance to contribute to software development projects, supporting the delivery and maintenance of key applications. Develop and maintain software applications using Python Work with frameworks such as Django, Flask, FastAPI, React Work with More ❯
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Senior Software Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
Primis
Backend & Integrations Engineer – Fully Remote – AI-Powered SaaS Client Open to applicants from UK We're looking for a hands-on Backend Engineer to help shape a growing applications engineering function. If you're confident across Python APIs, integrations, and workflow orchestration—and excited by the potential of AI-assisted development—this could be a great fit. You More ❯
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Senior Software Engineer

London Area, United Kingdom
Hybrid / WFH Options
Primis
Backend & Integrations Engineer – Fully Remote – AI-Powered SaaS Client Open to applicants from UK We're looking for a hands-on Backend Engineer to help shape a growing applications engineering function. If you're confident across Python APIs, integrations, and workflow orchestration—and excited by the potential of AI-assisted development—this could be a great fit. You More ❯
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Senior Software Engineer

Nottinghamshire, England, United Kingdom
Hybrid / WFH Options
Digital Waffle
Role: Full Stack Developer Salary: £60,000 - £70,000 + Company Bonus Location: Hybrid - Nottinghamshire (Once a week) Type: Permanent About the job: If you are a Senior Full Stack Engineer who has a strong C#, .Net background, has strong Full Stack experience and is looking for your next opportunity. This role could be for you! I have … people responsible for the direction of the product as it continues to develop and having a say in how the user interfaces are both visually appealing and highly functional. Senior Frontend Developer required skills: C# .Net Strong Full Stack Developer background HTML, CSS experience JavaScript/TypeScript experience Working knowledge of RESTful API’s & integration of backend services Full More ❯
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Senior Software Engineer

United Kingdom, UK
Immersum
Title: Forward Deployed Engineer – AI & Customer-Facing Technical Leader Location: Remote Travel: Customer visits 4–5 days/month; occasional team gatherings Salary: £110,000 - £130,000 Tech: Python, JavaScript, Azure, AWS, AI, LLM's, RAG Industry: AI Consultancy Immersum are supporting the growth of an AI consultancy who are on a mission to build something extraordinary. They integrate … positive change, giving customers a competitive advantage while building a culture of innovation and impact. We’re looking for talented engineers to join a customer-facing AI practice, as Senior Forward Deployed Engineers . You’ll work directly with clients to uncover problems, build prototypes, and guide full AI-enabled solution lifecycles. This is a role for engineers who … Enjoy building real software that makes a difference Are passionate about AI and its practical application Thrive at the intersection of technical leadership and client engagement What You’ll Do Customer-Facing Leadership Lead discovery workshops with technical and business stakeholders Represent the organisation’s technical capabilities in high-stakes client meetings Build trust and long-term relationships with More ❯
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Senior Software Engineer

Devon, England, United Kingdom
TRIA
Full Stack Engineer - One day a week in Devon Up to £70,000 + Shares Join a high-growth AI startup reshaping how the property industry operates. This role offers the opportunity to build advanced products that integrate intelligent automation and large language models into real-world property management and development workflows. What you will work on End-to More ❯
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Senior Software Engineer

exeter, south west england, united kingdom
TRIA
Full Stack Engineer - One day a week in Devon Up to £70,000 + Shares Join a high-growth AI startup reshaping how the property industry operates. This role offers the opportunity to build advanced products that integrate intelligent automation and large language models into real-world property management and development workflows. What you will work on End-to More ❯
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Senior Software Engineer

City of London, London, United Kingdom
bloom
Founding Product Engineer | Early-stage AI startup (hire #5) 💰 Up to £130,000 + meaningful early-stage equity % 🏢 Building together 4 days a week onsite in London bloom are working with a Seed stage AI startup on a mission to reinvent one of the world’s most painfully manual workflows, the kind of industry where automation is still in More ❯
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Senior Software Engineer

London Area, United Kingdom
bloom
Founding Product Engineer | Early-stage AI startup (hire #5) 💰 Up to £130,000 + meaningful early-stage equity % 🏢 Building together 4 days a week onsite in London bloom are working with a Seed stage AI startup on a mission to reinvent one of the world’s most painfully manual workflows, the kind of industry where automation is still in More ❯
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Senior Software Engineer

United Kingdom, UK
bloom
Founding Product Engineer | Early-stage AI startup (hire #5) Up to 130,000 + meaningful early-stage equity % Building together 4 days a week onsite in London bloom are working with a Seed stage AI startup on a mission to reinvent one of the worlds most painfully manual workflows, the kind of industry where automation is still in its More ❯
Employment Type: Part-time
Posted:

Senior Software Engineer

london, south east england, united kingdom
bloom
Founding Product Engineer | Early-stage AI startup (hire #5) 💰 Up to £130,000 + meaningful early-stage equity % 🏢 Building together 4 days a week onsite in London bloom are working with a Seed stage AI startup on a mission to reinvent one of the world’s most painfully manual workflows, the kind of industry where automation is still in More ❯
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Senior Software Engineer

london (city of london), south east england, united kingdom
bloom
Founding Product Engineer | Early-stage AI startup (hire #5) 💰 Up to £130,000 + meaningful early-stage equity % 🏢 Building together 4 days a week onsite in London bloom are working with a Seed stage AI startup on a mission to reinvent one of the world’s most painfully manual workflows, the kind of industry where automation is still in More ❯
Posted:

Senior Software Engineer

slough, south east england, united kingdom
bloom
Founding Product Engineer | Early-stage AI startup (hire #5) 💰 Up to £130,000 + meaningful early-stage equity % 🏢 Building together 4 days a week onsite in London bloom are working with a Seed stage AI startup on a mission to reinvent one of the world’s most painfully manual workflows, the kind of industry where automation is still in More ❯
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Senior Software Engineer

Hampshire, United Kingdom
Matchtech
Job Description The Engineering function delivers specialist capabilities, creating innovative solutions by combining electronic, mechanical, and software technologies in complex and critical environments. Work in a small, multi-disciplined engineering team to develop solutions for challenging customer problems, from early research and rapid prototypes to full product development and release. Apply flexible approaches across multiple frameworks and coding languages … to bring concepts to life. Key Responsibilities Work across the development lifecycle: design, implement, and test solutions. Develop software for bare-metal MCUs, signal processing, Embedded Linux, GUI (Windows, Linux, mobile), and data analytics (Jupyter notebooks). Program in Rust, C/C++, Python, or web frameworks as required. Collaborate with FPGAs, electronic design, and mechanical teams. Work in … engineering, mathematics, science, or equivalent experience. Experience in at least one of: Embedded Linux development, kernel/driver work, or programming in C/C++ or Rust. Knowledge of software development lifecycles, Object-Oriented Design, design patterns, and software testing. Desirable Skills GUI frameworks: eGUI, GTK, Tauri Yocto, Petalinux, uBoot Python, Jupyter, MATLAB Web development: HTML, JavaScript, TypeScript More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer

London, England, United Kingdom
Hydrogen Group
Python Video Processing Engineer (Contract) | 2 days in office 📅 Duration: 3 months 🌍 Location: London | 2 days in office 💰 Pay Rate: £25-300 per day 🔍 About the Role We are looking for a Python Video Processing Engineer to join our multidisciplinary team and help design and optimise high-performance video pipelines in the cloud. You'll be working on … cutting-edge software for a medical device , ensuring robustness, security, and efficiency in everything you build. 🧠 A Day in the Life Design, implement, and optimise custom cloud-based video pipelines for video processing. Leverage hardware acceleration to build high-performance, low-latency video capture, processing, AI inference, visualisation, and streaming software. Collaborate with engineers and researchers to deliver secure More ❯
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Senior Software Engineer

london, south east england, united kingdom
Hydrogen Group
Python Video Processing Engineer (Contract) | 2 days in office 📅 Duration: 3 months 🌍 Location: London | 2 days in office 💰 Pay Rate: £25-300 per day 🔍 About the Role We are looking for a Python Video Processing Engineer to join our multidisciplinary team and help design and optimise high-performance video pipelines in the cloud. You'll be working on … cutting-edge software for a medical device , ensuring robustness, security, and efficiency in everything you build. 🧠 A Day in the Life Design, implement, and optimise custom cloud-based video pipelines for video processing. Leverage hardware acceleration to build high-performance, low-latency video capture, processing, AI inference, visualisation, and streaming software. Collaborate with engineers and researchers to deliver secure More ❯
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Senior Software Engineer

slough, south east england, united kingdom
Hydrogen Group
Python Video Processing Engineer (Contract) | 2 days in office 📅 Duration: 3 months 🌍 Location: London | 2 days in office 💰 Pay Rate: £25-300 per day 🔍 About the Role We are looking for a Python Video Processing Engineer to join our multidisciplinary team and help design and optimise high-performance video pipelines in the cloud. You'll be working on … cutting-edge software for a medical device , ensuring robustness, security, and efficiency in everything you build. 🧠 A Day in the Life Design, implement, and optimise custom cloud-based video pipelines for video processing. Leverage hardware acceleration to build high-performance, low-latency video capture, processing, AI inference, visualisation, and streaming software. Collaborate with engineers and researchers to deliver secure More ❯
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Senior Software Engineer

London Area, United Kingdom
CXC
Job Description Work within our highly technically diverse multidisciplinary teams (application software, embedded, cloud platform, etc.) Contribute to the core application software by developing enhancements for our existing intra-operative devices, taking ownership of the maintainability and reliability of the application software in our existing intra-operative devices and helping develop the software stack for our … monitoring and cloud connectivity. Investigate, debug, and resolve issues reported from testing and support. Participate in the relevant security and regulatory compliance processes. Develop robust and secure-by-design software fit for a medical-grade system. Must Haves BS/MS in Computer, Electrical, Electronics Engineering or equivalent Current experience in developing high quality, high performing code in modern More ❯
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Senior Software Engineer

City of London, London, United Kingdom
CXC
Job Description Work within our highly technically diverse multidisciplinary teams (application software, embedded, cloud platform, etc.) Contribute to the core application software by developing enhancements for our existing intra-operative devices, taking ownership of the maintainability and reliability of the application software in our existing intra-operative devices and helping develop the software stack for our … monitoring and cloud connectivity. Investigate, debug, and resolve issues reported from testing and support. Participate in the relevant security and regulatory compliance processes. Develop robust and secure-by-design software fit for a medical-grade system. Must Haves BS/MS in Computer, Electrical, Electronics Engineering or equivalent Current experience in developing high quality, high performing code in modern More ❯
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Senior Software Engineer

London, England, United Kingdom
Hybrid / WFH Options
Hydrogen Group
C++ Video Streaming Engineer (Contract) Location: London (Hybrid - 2 days onsite per week) Duration: 6 months Pay Rate: £250-£300 per hour A Day in the Life Join our multidisciplinary team to push the limits of real-time video technology in the medical device space. You'll: Design, implement, and optimise live streaming capabilities into existing software-based … video pipelines. Leverage hardware acceleration to build high-performance, low-latency video capture, processing, AI inference, visualization, and streaming software. Develop robust and secure-by-design software for a regulated environment. Maintain code quality, reliability, and performance , participating in peer reviews and continuous improvement. Must Haves ✅ Expertise in WebRTC live video streaming development. ✅ Strong experience with software video More ❯
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Senior Software Engineer

England, United Kingdom
UnitedHealth Group
for fresh talent to join our expanding teams. Schedule Full-time position with standard working hours of Monday - Friday, standard business hours Primary Responsibilities Work as a Full Stack Engineer to design, code, build and test software solutions in DevOps scrum environment Lead team efforts to achieve timely resolution to all production issues Apply design patterns to best … practices to software development Rapid prototyping within an Agile methodology Contributing to the applications' technology stack and driving progressive solutions to complex problems Working with technical and strategic product to create world class products Implementing complex code based on guidance provided by lead engineer on initiative(s) Pro-actively identifies and addresses security gaps in solution design and …/CD tools such as Jenkins, Azure DevOps Automated Testing experience including Unit test development and Integration test development Web Programming experience including HTML, CSS, JavaScript Knowledge of Agile & Software Development Best Practices including code scanning and remediation Preferred Qualifications Degree in computer science Experience working in a MHRA regulated environment Experience with IAAS/PAAS services; together with More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:
Senior Software Engineer
10th Percentile
£60,000
25th Percentile
£65,000
Median
£82,500
75th Percentile
£110,938
90th Percentile
£132,750