76 to 100 of 173 Senior Software Engineer Jobs in the South East

Prisma, we are building the data layer for modern applications. If you are fascinated by the leading-edge architecture and technology used in today's data-intensive, highly scalable software systems, with distributed graph data on a massive scale, but you want the energy, challenges, and freedom that come with working in a small startup, then a job at … with data. By combining the power of open-source with cutting-edge commercial solutions, we're shaping the future of databases, one developer at a time. What would a Senior TypeScript Engineer at Prisma do? You will join a team of skilled TypeScript engineers tackling challenges across the stack to deliver a market-leading ORM. A typical day … t fit the description perfectly, we'd still love to hear from you. Many of these can be learnt on the job: 5+ years of professional experience as a Senior Software Engineer (or equivalent senior-level role) with a proven track record of delivering production-grade systems. Deep backend engineering expertise with JavaScript and TypeScript, writing More ❯

We are seeking an experienced Senior Software Engineer to join a specialist SME engineering consultancy delivering innovative, high-integrity systems. Key responsibilities: Lead and mentor a team of software engineers Define software architecture and detailed designs Develop and test C++ software, including embedded and real-time applications Collaborate with electronics, firmware, and systems teams … Support integration, verification, validation, and acceptance testing Requirements: Strong background in software design and development with C++ Experience with embedded/real-time systems Knowledge of UML design tools (e.g., Enterprise Architect) Familiarity with version control and structured software testing Team leadership or mentoring experience Must currently hold UK Security Clearance (SC or DV) Sole UK nationality, full More ❯

We are seeking an experienced Senior Software Engineer to join a specialist SME engineering consultancy delivering innovative, high-integrity systems. Key responsibilities: Lead and mentor a team of software engineers Define software architecture and detailed designs Develop and test C++ software, including embedded and real-time applications Collaborate with electronics, firmware, and systems teams … Support integration, verification, validation, and acceptance testing Requirements: Strong background in software design and development with C++ Experience with embedded/real-time systems Knowledge of UML design tools (e.g., Enterprise Architect) Familiarity with version control and structured software testing Team leadership or mentoring experience Must currently hold UK Security Clearance (SC or DV) Sole UK nationality, full More ❯

Senior Software Engineer Hayes, London Hybrid We are looking for a Senior Web Application Developer with 5+ years of experience in building and maintaining scalable, high-quality applications to join our growing tech team. As a senior member, you’ll play a key role in driving technical decisions, mentoring teammates, and ensuring best practices across … for non-technical colleagues. Experience with various testing methodologies (e.g., unit, integration, end-to-end) and a commitment to writing well-tested code. A commitment to robust and reliable software delivery, including familiarity with practices like no-downtime deployments, proactive monitoring, and identifying potential risks. Proven ability to lead technical initiatives from concept to completion, often involving multiple team More ❯

And play your part in racing history You belong here. High performance starts with you. Purpose of the Role The purpose of this role is to analyse, design and engineer innovative software solutions to projects aligned with the requirements of McLaren Racing. As a senior member of the development team, you will provide technical leadership on a … range of projects, contribute to initiatives beyond your own team, and mentor less experienced team members. Role Dimensions The Software & Data Science department is responsible for the analysis, design, and delivery of bespoke software tools and methodologies that help improve our Formula 1 car's performance. This starts with aerodynamicists submitting designs via the CFD Portal, through wind … analysis, to simulation and car setup optimisation, to trackside operational decision-making tools such as race strategy. We are a cross-functional group, bringing together data science, machine learning, software engineering, and DevOps to deliver performance focussed platforms and solutions. As a Senior Specialist Software Engineer, your role will combine elements of technical leadership, agile/ More ❯

SENIOR BACKEND ENGINEER UP TO £80k + BENEFITS HYBRID ROLE - 1 day a week in office LONDON Are you looking to take ownership of backend systems in a role that offers great benefits, hybrid working, and the chance to work with modern cloud technologies? THE COMPANY This fast-growing organisation operates in the digital space, delivering innovative technology … that drive real business impact. They are expanding their engineering team and investing in cutting-edge products that leverage data, automation, and scalable cloud platforms. THE ROLE As a Senior Backend Engineer , you'll be responsible for building and maintaining scalable systems and services that underpin the company's technology strategy. Key responsibilities include: Designing and delivering backend … software solutions aligned with the engineering roadmap Supporting solution design, infrastructure setup, testing, and maintenance Ensuring services remain robust, secure, and up-to-date with user feedback and evolving requirements Building new features and optimising existing systems for performance and scalability Upholding engineering best practices across cost efficiency, compliance, and quality Collaborating with cross-functional teams and communicating effectively More ❯

As the Senior Software Engineer, you will play a key role in bridging the product vision and its technical execution. Youll translate the Product Managers goals into a clear technical roadmap, ensuring development aligns with the product vision. A core part of your role will be acting as a sparring partner, coach, and mentor for the technical … system ATLAS is built to be scalable, reliable and secure. Develop and propose coding guidelines, conduct thorough code reviews, and enforce best practices to deliver high-quality software. Refine software development processes to boost efficiency and align with the overall product strategy. Take ownership of solving complex technical challenges and making decisions that keep the product on the right … automated and manual, to ensure the product performs as intended. Optimize build, deployment, and operational processes to maintain reliability, prevent downtime, and ensure consistent performance. Coordinate, schedule, and oversee software updates and releases to ensure seamless delivery and execution What we would like you to bring At least 4 years of experience in software development, ideally for WMS More ❯

Senior Software Engineer - London - £120k Please note - this role will require you to work from the London based office three days per week. You must have the unrestricted right to work in the UK to be eligible for this role - this organisation is not able to offer sponsorship. Are you passionate about building cutting-edge technology solutions … building out our new front-end analytics platform, delivering intuitive, high-performance tools that empower users with real-time insights and advanced visualization capabilities. Collaborate with commercial teams to engineer and optimize processes and analytical models. Build and maintain Python-based services and APIs using modern frameworks and best practices. Develop solutions for data modeling, market analysis, and position More ❯

.If you’re looking for a company that invests in its people , offers career progression , and provides exceptional benefits , this is the opportunity for you.We are looking for a Senior Software Engineer to join thriving organisation who specialise in Communications and Electronic devices for Maritime and Land based defense products. Your Responsibilities Design, develop, and review software for systems ranging from small embedded processors to complex multi-processor networks. Collaborate with hardware and systems engineers on integrated software solutions. Deliver across all phases of the software lifecycle: requirements, design, implementation, integration, and testing. Produce high-quality technical documentation. Provide input on design suitability and participate in design reviews. Support R&D initiatives to improve … quality, efficiency, and cost effectiveness. Contribute to proposals and business development when required. Experience & Skills Strong software development experience in C, C++, C# or Java . Proficiency with Windows , Linux , and/or RTOS environments (Linux preferred). Understanding of structured software design methodologies . Excellent communication and teamwork skills. Eligible for UK Security Clearance (advantageous). What More ❯

you’re looking for a company that invests in its people , offers career progression , and provides exceptional benefits , this is the opportunity for you. We are looking for a Senior Software Engineer to join thriving organisation who specialise in Communications and Electronic devices for Maritime and Land based defense products. Your Responsibilities Design, develop, and review software for systems ranging from small embedded processors to complex multi-processor networks. Collaborate with hardware and systems engineers on integrated software solutions. Deliver across all phases of the software lifecycle: requirements, design, implementation, integration, and testing. Produce high-quality technical documentation. Provide input on design suitability and participate in design reviews. Support R&D initiatives to improve … quality, efficiency, and cost effectiveness. Contribute to proposals and business development when required. Experience & Skills Strong software development experience in C, C++, C# or Java . Proficiency with Windows , Linux , and/or RTOS environments (Linux preferred). Understanding of structured software design methodologies . Excellent communication and teamwork skills. Eligible for UK Security Clearance (advantageous). What More ❯

with you. Purpose of the Role The pinnacle of motorsport excellence is built on a foundation of strong reliability of the team, processes, and the racing car. The Reliability Software Engineering role is responsible for building and operating the tools which allow McLaren F1 to achieve the highest levels of operational reliability. This role will work closely with end … users to design and implement software tools which track and manage issues and faults across manufacturing, logistics, car build, and race days. Innovation around finding patterns and relationships between faults and issues will be key, by using data, analytics, and machine learning to deliver world championship reliability tools. Role Dimensions The Software & Data Science group in McLaren F1 … is responsible for the analysis, design, and delivery of software tools and methodologies which improve the team and car's performance. We are a cross-functional group, bringing together data science, machine learning, software engineering, and DevOps to deliver performance focused platforms and solutions. In reliability engineering, you will understand issue tracking and management, root cause analysis, integrating More ❯

Provide are seeking a Mid-Senior Software Engineer to join our clients growing SaaS team, building scalable products used by thousands of customers worldwide. You will work primarily with TypeScript and Node.js , contributing to backend services and APIs that power our core platform. The role involves designing, implementing, and maintaining clean, well-tested code, while collaborating closely … This is a fantastic opportunity to take ownership within a fast-moving SaaS business and make a real impact on our customers and product. Requirements & Qualifications 5 years professional software development experience, with at least 2+ years using TypeScript and Node.js in production. Strong knowledge of backend development including RESTful APIs, microservices, and event-driven architectures. Hands-on experience … cloud platforms (AWS, Azure, or GCP) and containerisation tools like Docker/Kubernetes . Experience with CI/CD pipelines , automated testing, and code quality tools. Solid understanding of software engineering principles: scalability, performance, and maintainability. Strong collaboration skills — able to mentor junior engineers and contribute to team-wide best practices. Bonus: experience in a SaaS or product-led More ❯

Provide are seeking a Mid-Senior Software Engineer to join our clients growing SaaS team, building scalable products used by thousands of customers worldwide. You will work primarily with TypeScript and Node.js , contributing to backend services and APIs that power our core platform. The role involves designing, implementing, and maintaining clean, well-tested code, while collaborating closely … This is a fantastic opportunity to take ownership within a fast-moving SaaS business and make a real impact on our customers and product. Requirements & Qualifications 5 years professional software development experience, with at least 2+ years using TypeScript and Node.js in production. Strong knowledge of backend development including RESTful APIs, microservices, and event-driven architectures. Hands-on experience … cloud platforms (AWS, Azure, or GCP) and containerisation tools like Docker/Kubernetes . Experience with CI/CD pipelines , automated testing, and code quality tools. Solid understanding of software engineering principles: scalability, performance, and maintainability. Strong collaboration skills — able to mentor junior engineers and contribute to team-wide best practices. Bonus: experience in a SaaS or product-led More ❯

Senior Software Engineer – Shopify/FinTech Integrations Full Stack ( Backend-leaning | TypeScript ) London/Hybrid – 1 day per week in-office Up to £90k DOE + MacBook Pro + £600 wellbeing allowance 🚫 Visa sponsorship not available Join a VC-backed, fast-growing startup that’s redefining how customers shop for luxury fashion online. Backed by top-tier More ❯

Senior Software Engineer – Shopify/FinTech Integrations Full Stack ( Backend-leaning | TypeScript ) London/Hybrid – 1 day per week in-office Up to £90k DOE + MacBook Pro + £600 wellbeing allowance 🚫 Visa sponsorship not available Join a VC-backed, fast-growing startup that’s redefining how customers shop for luxury fashion online. Backed by top-tier More ❯

Senior Software Engineer – Shopify/FinTech Integrations Full Stack ( Backend-leaning | TypeScript ) London/Hybrid – 1 day per week in-office Up to £90k DOE + MacBook Pro + £600 wellbeing allowance 🚫 Visa sponsorship not available Join a VC-backed, fast-growing startup that’s redefining how customers shop for luxury fashion online. Backed by top-tier More ❯

Aibidia is looking for a skilled Senior Software Engineer to work on the Research and Development team to create and expand Aibidia's range of solutions. We are revolutionising cross-border business management with our SaaS platform, and need top-tier talent to contribute to the success in transforming how the large multinational companies manage transfer pricing More ❯

a seamless experience that emphasises simplicity, efficiency, and rapid execution. Our goal is to remove obstacles, enabling you to achieve success faster and more effectively. Role Overview As a Senior Software Engineer, you will play a pivotal role in architecting and developing our next-generation web application and API. This role requires technical leadership, hands-on development … and mentoring of junior developers. You will drive the adoption of best practices, ensuring scalability, security, and performance. If you are passionate about software development, enjoy solving complex problems, and are ready to lead innovative projects, we encourage you to apply. Join our dynamic team and contribute to building transformative solutions that make a tangible impact. This role will … Qualifications and Key Skills Education: Bachelor’s in Computer Science or related field from a Tier 1 university. Experience: Minimum of 4 years of full-time professional experience in software development, with strong expertise in TypeScript, ReactJS, and Next.JS. Solid experience in building RESTful APIs Leadership: Proven track record of leading development teams and managing large-scale projects. Database More ❯

a seamless experience that emphasises simplicity, efficiency, and rapid execution. Our goal is to remove obstacles, enabling you to achieve success faster and more effectively. Role Overview As a Senior Software Engineer, you will play a pivotal role in architecting and developing our next-generation web application and API. This role requires technical leadership, hands-on development … and mentoring of junior developers. You will drive the adoption of best practices, ensuring scalability, security, and performance. If you are passionate about software development, enjoy solving complex problems, and are ready to lead innovative projects, we encourage you to apply. Join our dynamic team and contribute to building transformative solutions that make a tangible impact. This role will … Qualifications and Key Skills Education: Bachelor’s in Computer Science or related field from a Tier 1 university. Experience: Minimum of 4 years of full-time professional experience in software development, with strong expertise in TypeScript, ReactJS, and Next.JS. Solid experience in building RESTful APIs Leadership: Proven track record of leading development teams and managing large-scale projects. Database More ❯

a seamless experience that emphasises simplicity, efficiency, and rapid execution. Our goal is to remove obstacles, enabling you to achieve success faster and more effectively. Role Overview As a Senior Software Engineer, you will play a pivotal role in architecting and developing our next-generation web application and API. This role requires technical leadership, hands-on development … and mentoring of junior developers. You will drive the adoption of best practices, ensuring scalability, security, and performance. If you are passionate about software development, enjoy solving complex problems, and are ready to lead innovative projects, we encourage you to apply. Join our dynamic team and contribute to building transformative solutions that make a tangible impact. This role will … Qualifications and Key Skills Education: Bachelor’s in Computer Science or related field from a Tier 1 university. Experience: Minimum of 4 years of full-time professional experience in software development, with strong expertise in TypeScript, ReactJS, and Next.JS. Solid experience in building RESTful APIs Leadership: Proven track record of leading development teams and managing large-scale projects. Database More ❯

Equity options: 0.05% - 0.15% Hybrid working policy: Mandatory minimum three days a week in our Holborn office Experience level: At least six years in commercial software engineering On-call: Engineers are expected to be on-call at least one week per month If you're looking to join an exceptional, fast-paced, and growing team building innovative products in … role The Investa app was installed over 1,000 times within the first 24 hours of our priority access launch and we’re now looking for an extremely strong Senior Software Engineer to strengthen our engineering team as we scale. You will have extensive commercial experience designing, building and maintaining systems used in critical services or those … of continuous learning and improvement Ensure best practice through example and continual team feedback Root causing real-time production issues in a timely manner Taking a pragmatic approach to software development Your background Proven track record working with critical services or high-volume applications Strong proficiency in a number of programming languages, which can include Python, TypeScript, Java, JavaScript More ❯

Equity options: 0.05% - 0.15% Hybrid working policy: Mandatory minimum three days a week in our Holborn office Experience level: At least six years in commercial software engineering On-call: Engineers are expected to be on-call at least one week per month If you're looking to join an exceptional, fast-paced, and growing team building innovative products in … role The Investa app was installed over 1,000 times within the first 24 hours of our priority access launch and we’re now looking for an extremely strong Senior Software Engineer to strengthen our engineering team as we scale. You will have extensive commercial experience designing, building and maintaining systems used in critical services or those … of continuous learning and improvement Ensure best practice through example and continual team feedback Root causing real-time production issues in a timely manner Taking a pragmatic approach to software development Your background Proven track record working with critical services or high-volume applications Strong proficiency in a number of programming languages, which can include Python, TypeScript, Java, JavaScript More ❯

finance with blockchain technology, offering a wide variety of financial services, including cross-border payments, institutional crypto liquidity, digital asset custody, and our enterprise-grade stablecoin RLUSD. As a Software Engineer at Ripple, you'll work on payment technologies, building scalable solutions that power the future of finance. Your primary responsibilities will be for a core part of … role in increasing scale, efficiency, and observability, ensuring Ripple products interact seamlessly with global banks and payment providers in a consistent and trustworthy way. We are looking for a software engineer passionate about learning and understanding the way a complex fintech system works end-to-end and can help drive forward the development. A passion for making systems … variety of challenges spanning crypto, trading, fintech, and payment solutions. Fully integrate into a large system and spot opportunities for improvements and best practices. Prototype new solutions for complex software problems and implement them for production cloud deployments WHAT YOU'LL BRING: Experience building highly scalable and performant enterprise software Working knowledge of Java and its ecosystem (i.e. More ❯

finance with blockchain technology, offering a wide variety of financial services, including cross-border payments, institutional crypto liquidity, digital asset custody, and our enterprise-grade stablecoin RLUSD. As a Software Engineer at Ripple, you'll work on payment technologies, building scalable solutions that power the future of finance. Your primary responsibilities will be for a core part of … role in increasing scale, efficiency, and observability, ensuring Ripple products interact seamlessly with global banks and payment providers in a consistent and trustworthy way. We are looking for a software engineer passionate about learning and understanding the way a complex fintech system works end-to-end and can help drive forward the development. A passion for making systems … variety of challenges spanning crypto, trading, fintech, and payment solutions. Fully integrate into a large system and spot opportunities for improvements and best practices. Prototype new solutions for complex software problems and implement them for production cloud deployments WHAT YOU'LL BRING: Experience building highly scalable and performant enterprise software Working knowledge of Java and its ecosystem (i.e. More ❯

between customer ideas and quantum hardware execution. We're unlocking the true power of quantum technology, one breakthrough at a time. As our team expands, we're seeking a Senior Software Engineer to help shape the future of our compiler stack - someone ready to combine technical vision with hands-on innovation, and to mentor others as we … the next era of computing. You're an experienced developer - ideally fluent in Python - with a strong foundation in library development, code optimisation, and deep engineering. You understand how software interacts with hardware at a fundamental level, and you're driven by the challenge of building technology that redefines what's possible. You'll have the opportunity to go … also Cloud, DevOps and Quantum Theory teams to develop a deep understanding of the requirements from all layers of our stack. You'll be responsible for: Setting priority of software development projects within the Compiler team, demonstrating your awareness of high level team goals and resourcing Developing and maintaining code within the OQC compiler to ensure it is fit More ❯