1 to 25 of 2,654 Senior Software Engineer Jobs in the UK

cyber-attacks, and espionage. At GCHQ you’ll do varied and fascinating work in a supportive and inclusive environment that puts the emphasis on teamwork. The Role: As a Senior Software Engineer, you’ll play a pivotal role in finding solutions to mission-critical problems. You’ll contribute to the architecture and design of new and existing … systems, establish best working practices, and deliver high-quality software products. With your knowledge of various software engineering methodologies, you’ll bring fresh ideas and approaches that have a real impact at the heart of our mission to keep the UK safe in the real world, and online. This is a practical role with plenty of opportunities to … develop yourself and others. You might be reviewing pull requests, defining review, branching, and deployment strategies, or working with a range of software engineering frameworks. You operate at a deep technical level, leveraging your familiarity with languages such as JavaScript, Java, C++, Node, Python, Rust, Go, and .NET. Importantly, you’ll bring a genuine excitement for discovering new software More ❯

Social network you want to login/join with: Senior Software Engineer – Quant Full Stack & Infrastructure (Team Lead), slough col-narrow-left Client: Trireme Location: slough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 04.06.2025 Expiry Date: 19.07.2025 col-wide Job Description: About the Role: We are seeking … a highly experienced and versatile Senior Software Engineer with deep expertise across quantitative development, infrastructure engineering, and full-stack development, to join and lead a high-performance team. The ideal candidate thrives at the intersection of finance and technology, has led engineering teams, and has built and maintained robust trading systems and developer tooling across cloud-native … Collaborate with quant researchers, traders, and infrastructure teams to deliver performant solutions. Maintain and optimize trading infrastructure (low-latency systems, data pipelines, monitoring, etc.). Manage a team of software engineers, mentor junior developers, and drive best practices across the stack. Ensure high code quality through code reviews, CI/CD, test automation, and Git-based workflows. Own deployment More ❯

About the Role: We are seeking a highly experienced and versatile Senior Software Engineer with deep expertise across quantitative development, infrastructure engineering, and full-stack development, to join and lead a high-performance team. The ideal candidate thrives at the intersection of finance and technology, has led engineering teams, and has built and maintained robust trading systems … Collaborate with quant researchers, traders, and infrastructure teams to deliver performant solutions. Maintain and optimize trading infrastructure (low-latency systems, data pipelines, monitoring, etc.). Manage a team of software engineers, mentor junior developers, and drive best practices across the stack. Ensure high code quality through code reviews, CI/CD, test automation, and Git-based workflows. Own deployment … internal tools and external integrations. Work with data at scale (market data ingestion, real-time analytics, historical storage). Required Skills & Experience: Core Engineering: 5+ years of experience in software development, with exposure to both backend and frontend stacks. Strong programming proficiency in Python, C++, and Java (Quant/Trading grade codebases). Expertise in modern web development with More ❯

About the Role: We are seeking a highly experienced and versatile Senior Software Engineer with deep expertise across quantitative development, infrastructure engineering, and full-stack development, to join and lead a high-performance team. The ideal candidate thrives at the intersection of finance and technology, has led engineering teams, and has built and maintained robust trading systems … Collaborate with quant researchers, traders, and infrastructure teams to deliver performant solutions. Maintain and optimize trading infrastructure (low-latency systems, data pipelines, monitoring, etc.). Manage a team of software engineers, mentor junior developers, and drive best practices across the stack. Ensure high code quality through code reviews, CI/CD, test automation, and Git-based workflows. Own deployment … internal tools and external integrations. Work with data at scale (market data ingestion, real-time analytics, historical storage). Required Skills & Experience: Core Engineering: 5+ years of experience in software development, with exposure to both backend and frontend stacks. Strong programming proficiency in Python, C++, and Java (Quant/Trading grade codebases). Expertise in modern web development with More ❯

Senior Software Engineer/Dev Team Lead - Remote (UK based) Posted: May 2, 2025 Company name: NewsNow Location: London (remote) Country: United Kingdom Pay rate: £90,000 to £100,000 plus on-call bonus Poster represents: an employer Terms of employment: Salaried employee Hours: Full time Onsite: no Description: Salary: £90k-100k plus on-call bonus Benefits … NewsNow has since become a global top 50 news website with millions of loyal users who discover news from thousands of publishers. We are looking for a fully-remote Senior Software Engineer/Dev Team Lead to take overall day-to-day operational responsibility for uptime of the NewsNow platform and for leading our small dev team … rest as needed: • Distributed or large-scale systems • MySQL/SQL database design, query optimisation and admin • Web development in HTML, CSS, JavaScript, Vue/React • Apache web server software and related modules • Cloud platforms and concepts (AWS, Google Cloud, Azure) • Setup, testing and administration of CI/CD pipelines • Networking and firewalling • Natural language processing Responsibilities Leading, driving More ❯

Type: Full Time Service Line: Tax Central Contract type: Permanent Senior Software Engineer – Tax & Legal Technology – D Grade Tax and Legal Technology Team We are a team of 300+ technologists providing technology enablement services and solutions across the Tax and Legal business. This business has 2,500 tax & legal professionals covering multiple disciplines. We serve many thousands … pay the right amount of tax with the minimum amount of effort. The Engineering department is made up of Product Owners, Business Analysts, multi-disciplinary Engineering teams (approximately 160 Software, QA and Cloud Operations engineers) and IT Service delivery professionals working on a large portfolio of systems used to improve productivity and solve key business problems across Tax & Legal. … portals for clients to interact with KPMG, maximising collaboration and ensuring seamless delivery of information to our clients. The Role You will be working in a small team of Software Engineers and Quality Assurance Engineers across a variety of projects for both our clients and our internal professionals. You will be responsible both for the development and delivery of More ❯

This job is brought to you by Jobs/Redefined, the UK's leading over-50s age inclusive jobs board. Job description Senior Software Engineer - Tax & Legal Technology - D Grade Tax and Legal Technology Team We are a team of 300+ technologists providing technology enablement services and solutions across the Tax and Legal business. This business has … pay the right amount of tax with the minimum amount of effort. The Engineering department is made up of Product Owners, Business Analysts, multi-disciplinary Engineering teams (approximately 160 Software, QA and Cloud Operations engineers) and IT Service delivery professionals working on a large portfolio of systems used to improve productivity and solve key business problems across Tax & Legal. … portals for clients to interact with KPMG, maximising collaboration and ensuring seamless delivery of information to our clients. The Role You will be working in a small team of Software Engineers and Quality Assurance Engineers across a variety of projects for both our clients and our internal professionals. You will be responsible both for the development and delivery of More ❯

Join to apply for the Senior Software Engineer role at Jet2.com and Jet2holidays Join to apply for the Senior Software Engineer role at Jet2.com and Jet2holidays Jet2.com and Jet2holidays are looking for a Senior Software Engineer to join our fast-moving and growing software development team. This is an exciting … our business and our customers. We have several roles within our wide range of scrum teams and are looking for passionate, technical people to join our team. As our Senior Software Engineer , you’ll have access to a wide range of benefits including: Remote working available Access to a generous discretionary profit share scheme Colleague discounts on … Jet2holidays and Jet2.com flights What You’ll Be Doing As a Senior Software Engineer , you will be joining a fast-paced scrum team, made up of a lead engineer, software engineers, automation and manual test engineers, product owners and business analysts. You will: Deliver systems that improve the experience of our customers and business users. More ❯

Senior Software Engineer - Global Financial Technology Firm Location: Belfast (Hybrid working) Job Type: Permanent | Full-Time Posted by: VANRATH VANRATH is delighted to be recruiting on behalf of a global market infrastructure and trading technology firm for the position of Senior Software Engineer . This role offers an exciting opportunity to work within a … collaborative Agile engineering environment, delivering high-impact, business-critical software solutions for both internal and external stakeholders across global financial and commodities markets. This is an ideal position for an experienced engineer with strong proficiency in C# or Java, a passion for quality and testing, and a desire to be part of a modern, forward-thinking development culture. … The Opportunity As a Senior Engineer, you will join a high-performing technology division within a multinational organisation that powers price discovery, liquidity access, and data distribution across 60+ global offices. Working as part of a cross-functional, self-organising Agile team, you will contribute to the design and delivery of innovative solutions, applying best practices in CI More ❯

improve these actions independently. Complexio is a joint venture between Hafnia and Símbolo, in partnership with Marfin Management, C Transport Maritime, Trans Sea Transport, and BW Epic Kosan. Position: Senior Software Engineer As a Senior Software Engineer with broad expertise, you will be a vital part of our team, developing innovative applications that leverage … Key Qualifications: Excellent problem-solving and technical skills. Strong communication and collaboration skills, with the ability to work in a team. Interest and experience in working on early-stage software and a wide range of tasks. Proven experience using technology and how it helped you build a lasting product. Requirements: Preferred M.Sc or Ph.D. degree in Computer Science or … a related field. 7+ years of experience in software development. Work experience using both compiled languages (Rust, OCaml, Golang, Java, C#) or dynamic languages (JavaScript, Python, Ruby). Experience building web applications or desktop application technologies such as Electron, Tauri, React, or Vue.js. Familiarity with CI/CD principles and technologies, including experience with GitHub Actions or similar. Experience More ❯

of driven talented people from over twenty different countries, speaking multiple languages, with a physical footprint in Africa, Europe, and Latin America. The role: We are seeking a skilled Senior Full Stack Software Engineer who is proficient in both frontend and backend development. The ideal candidate will be responsible for designing, developing, and maintaining our platform and … and functionality of our applications and a strong understanding that our customers are the ultimate beneficiary of well built, scalable and working software. Key Responsibilities: Design, develop, and maintain software systems using modern frameworks and technologies. Collaborate with cross-functional teams to define, design, and ship new features. Write clean, maintainable, and efficient code. Implement responsive design principles to … write and understand design documentation using C4, sequence diagrams and workflows. Excellent problem-solving skills and attention to detail. Solid understanding of logging, monitoring and observability to understand if software is functioning as required. Strong communication and teamwork skills. Preferred Skills: Experience with cloud platforms e.g., AWS, Azure, Google Cloud. Knowledge of DevOps practices and CI/CD pipelines. More ❯

of driven talented people from over twenty different countries, speaking multiple languages, with a physical footprint in Africa, Europe, and Latin America. The role: We are seeking a skilled Senior Full Stack Software Engineer who is proficient in both frontend and backend development. The ideal candidate will be responsible for designing, developing, and maintaining our platform and … and functionality of our applications and a strong understanding that our customers are the ultimate beneficiary of well built, scalable and working software. Key Responsibilities: Design, develop, and maintain software systems using modern frameworks and technologies. Collaborate with cross-functional teams to define, design, and ship new features. Write clean, maintainable, and efficient code. Implement responsive design principles to … write and understand design documentation using C4, sequence diagrams and workflows. Excellent problem-solving skills and attention to detail. Solid understanding of logging, monitoring and observability to understand if software is functioning as required. Strong communication and teamwork skills. Preferred Skills: Experience with cloud platforms e.g., AWS, Azure, Google Cloud. Knowledge of DevOps practices and CI/CD pipelines. More ❯

of driven talented people from over twenty different countries, speaking multiple languages, with a physical footprint in Africa, Europe, and Latin America. The role: We are seeking a skilled Senior Full Stack Software Engineer who is proficient in both frontend and backend development. The ideal candidate will be responsible for designing, developing, and maintaining our platform and … and functionality of our applications and a strong understanding that our customers are the ultimate beneficiary of well built, scalable and working software. Key Responsibilities: Design, develop, and maintain software systems using modern frameworks and technologies. Collaborate with cross-functional teams to define, design, and ship new features. Write clean, maintainable, and efficient code. Implement responsive design principles to … write and understand design documentation using C4, sequence diagrams and workflows. Excellent problem-solving skills and attention to detail. Solid understanding of logging, monitoring and observability to understand if software is functioning as required. Strong communication and teamwork skills. Preferred Skills: Experience with cloud platforms e.g., AWS, Azure, Google Cloud. Knowledge of DevOps practices and CI/CD pipelines. More ❯

the mentoring of code reviews as part of the development process. Produce high quality code with minimal defects. Update job knowledge by researching new internet/intranet technologies and software products; participating in educational opportunities; reading professional publications; maintaining personal networks; participating in professional organizations. Regularly communicate with the business to complete requirements analysis, design, and development work. Participate … value to job accomplishments. Participate in efforts to help team achieve yearly business and technical goals. Become a subject matter expert on one or more areas of functionality. Recommend software solutions and tools by comparing advantages and disadvantages of custom development and purchase alternatives. Integrate applications by designing database architecture, establishing connectivity with network systems and web servers. Perform … other job-related duties as assigned by Managers(s). What You'll Need Bachelor's degree in Information Systems, Computer Science, software engineering, or mathematics. Possess an understanding of business management. 8+ years of software programming experience. Advanced proficiency in Python and/or C# along with a good working knowledge of JavaScript. Extensive experience with modern More ❯

Join to apply for the Senior Software Engineer (Fullstack) role at Lloyds Banking Group Continue with Google Continue with Google 2 days ago Be among the first 25 applicants Join to apply for the Senior Software Engineer (Fullstack) role at Lloyds Banking Group This range is provided by Lloyds Banking Group. Your actual pay … will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Lloyds Banking Group JOB TITLE: Senior Software Engineer (Fullstack) LOCATION(S): HOURS: Full-time - 35 hours per week WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per … ll design and develop both frontend and backend components of modern applications. You'll work with cloud-native technologies, microservices, and CI/CD pipelines to deliver high-quality software that makes a real difference. WHAT YOU'LL BE DOING As a Senior Software Engineer, you'll: Design, develop, test, and deploy modular applications, APIs, and More ❯

Join to apply for the Senior Software Engineer (Fullstack) role at Lloyds Banking Group Join to apply for the Senior Software Engineer (Fullstack) role at Lloyds Banking Group Get AI-powered advice on this job and more exclusive features. This range is provided by Lloyds Banking Group. Your actual pay will be based on … your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Lloyds Banking Group JOB TITLE: Senior Software Engineer (Fullstack) LOCATION(S): HOURS: Full-time - 35 hours per week WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per week, or 40% of … ll design and develop both frontend and backend components of modern applications. You'll work with cloud-native technologies, microservices, and CI/CD pipelines to deliver high-quality software that makes a real difference. WHAT YOU'LL BE DOING As a Senior Software Engineer, you'll: Design, develop, test, and deploy modular applications, APIs, and More ❯

Join to apply for the Senior Software Engineer role at Oxford Quantum Circuits (OQC) Join to apply for the Senior Software Engineer role at Oxford Quantum Circuits (OQC) Get AI-powered advice on this job and more exclusive features. Oxford Quantum Circuits (OQC) provided pay range This range is provided by Oxford Quantum Circuits … pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Oxford Quantum Circuits (OQC) Senior Software Engineer - Cloud Services - Salary £70-75k per annum At OQC , we’re building the future of quantum computing — and no, it’s not just sci … fi anymore. While our quantum hardware gets plenty of attention (it does look cool), there’s groundbreaking software making it all possible. As a Senior Software Engineer, you’ll be right at the heart of it. You’re a seasoned software professional, ideally with a background in computer science or a related field, who thrives More ❯

Senior Software Engineer - Cloud Services - Salary £70-75k per annum At OQC , we’re building the future of quantum computing — and no, it’s not just sci-fi anymore. While our quantum hardware gets plenty of attention (it does look cool), there’s groundbreaking software making it all possible. As a Senior Software Engineer, you’ll be right at the heart of it. You’re a seasoned software professional, ideally with a background in computer science or a related field, who thrives on turning cutting-edge science into real-world products. You’ll work alongside scientists and engineers to solve unique challenges in quantum computing, helping to shape our QCaaS … development projects — setting priorities, managing dependencies, and seeing work through from design to deployment. You’ll be; Driving forward development standards and prioritizing best coding practices including promotion of “Software Craftmanship” at OQC Gather requirements, propose solutions, build and test prototypes through to production. Design approaches that weigh trade-offs between performance, maintainability, and scalability. Ensure your work is More ❯

Join to apply for the Senior Software Engineer in Test (SDET) role at Hargreaves Lansdown Join to apply for the Senior Software Engineer in Test (SDET) role at Hargreaves Lansdown This range is provided by Hargreaves Lansdown. Your actual pay will be based on your skills and experience — talk with your recruiter to learn … sector. This is your chance to genuinely stamp your mark on one of the UK's most innovative and digital-focused businesses. What You'll Be Doing As a Senior Software Developer in Test (SSDET) at HL, you will play a crucial role in building market-leading solutions for our clients. You will: Test Automation Development : Design, develop … of traffic. Implement security testing practices to identify and mitigate vulnerabilities. Develop functional resilience strategies such as chaos engineering. Quality Assurance : Support the team in conducting thorough testing of software applications, including unit, integration, system, and acceptance tests. Collaborate with developers to debug and resolve complex issues, including fixing bugs. Test Planning and Execution : Translate product requirements into test More ❯

information on flexible working options Flexible Working Options Flexibility in when hours are worked, Hybrid Working, Reduced Hours Job Description Summary Aims to deliver the highest quality customer driven software whilst continually challenging, motivating, mentoring and supporting their engineering teams. They will work in cross-disciplinary teams delivering exciting customer driven solutions and high quality software and showcase … excellent interpersonal and communication skill whilst efficiently working across the project life cycle to ensure software operates as intended. This is a leadership level role and will blend both deep domain and technical expertise within a feature team and great passion for coaching and developing people in a “player-coach” model. Job Description JOB TITLE: Senior Software Engineer ( Fullstack ) SALARY: £70,929-£86,691 pa LOCATION(S): Chester, Leeds, Halifax & Manchester HOURS: Full-time – 35 hours per week WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per week, or 40% of our time, at one of our offices stated above . ABOUT THIS OPPORTUNITY We have multiple openings across More ❯

information on flexible working options Flexible Working Options Flexibility in when hours are worked, Hybrid Working, Reduced Hours Job Description Summary Aims to deliver the highest quality customer driven software whilst continually challenging, motivating, mentoring and supporting their engineering teams. They will work in cross-disciplinary teams delivering exciting customer driven solutions and high quality software and showcase … excellent interpersonal and communication skill whilst efficiently working across the project life cycle to ensure software operates as intended. This is a leadership level role and will blend both deep domain and technical expertise within a feature team and great passion for coaching and developing people in a “player-coach” model. Job Description JOB TITLE: Senior Software Engineer ( Fullstack ) SALARY: £70,929-£86,691 pa LOCATION(S): Chester, Leeds, Halifax & Manchester HOURS: Full-time – 35 hours per week WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per week, or 40% of our time, at one of our offices stated above . ABOUT THIS OPPORTUNITY We have multiple openings across More ❯

Job Description Be an integral part of an agile team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products. As a Senior Lead Software Engineer at JPMorgan Chase within the Chief Data and Analytics Office, you'll be a key player in our agile team. We work together to enhance, build … and reliable, and provides technical leadership and guidance to the cloud engineering team Contributes to the engineering community as an advocate of firmwide frameworks, tools, and practices of the Software Development Life Cycle Influences peers and project decision-makers to consider the use and application of leading-edge technologies Adds to the team culture of diversity, equity, and respect … the adoption and implementation of new tools/technologies Ensures compliance with security and regulatory requirements for the cloud Required qualifications, capabilities, and skills Formal training or certification in software engineering concepts and proven applied experience Hands-on experience with one or more cloud computing platforms: AWS, Azure, GCP Advanced knowledge of containerization and container runtime/orchestration platforms More ❯

We are seeking a Senior Software Engineer to join the team within the Vehicle Performance Software group. In this role, you will report directly to the Head of Vehicle Performance Software and will be instrumental in developing innovative software solutions that enhance and support the efforts of our Engineering and Operations teams. This role … work with a highly specialised user base at Atlassian Williams Racing on state-of-the-art simulations, real time data, bespoke analysis tools, and enabling operational excellence. We view software and data as critical drivers in our mission to advance up the grid. Your contributions will have a tangible impact, both in our factory and on the track. The … Software Development group develops bespoke software to support our Engineering and Operations functions at Williams Racing. The group is composed of several software development teams that focus on areas such as Aerodynamics, Vehicle Dynamics and Vehicle Performance. We aim to leverage the right tools and technologies for the right job. We have a large estate of software More ❯

Kinesis, Node.js, YAML Frontend: React/Next.js Programming: TypeScript; JavaScript, Python Infrastructure: Terraform, GitHub CI/CD pipelines Responsibilities Provide technical leadership and mentorship to your team. As a Senior Full-stack Software Engineer, you will be responsible for guiding and developing the skills of junior engineers. Lead technical decisions and design for your team. You will … of technical documentation and standards. ABOUT YOU Qualifications Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Proven experience as a Senior Full Stack Developer or similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for serverless backend services. Proficiency in React with Next.js for frontend More ❯

Hyrbid - 1 day per week in office A leading SaaS organisation is looking for a Senior Java Developer to join its expanding technology team. You’ll contribute to the ongoing development of a next-generation platform, with a strong focus on high-performance search capabilities and large-scale data processing. This is a fantastic opportunity to work on impactful … technology in a forward-thinking, data-driven environment. Your Role As a Senior Java Developer, you’ll be instrumental in building and evolving a resilient data platform that underpins key SaaS offerings. You’ll work closely with engineers, designers, and product teams to deliver scalable, performant solutions that help end users derive real value from complex data. Key Responsibilities … Solr, Elasticsearch, if not you have the appetite to learn more. Hands on experience with SQL and NoSQL databases under your belt. Hold a degree in Computer Science/Software Engineering or equivalent experience. Familiar with writing automated tests and maintaining high code quality. You have laser sharp attention to detail. Strong communication skills (both verbal and written) are More ❯