226 to 250 of 518 Software Engineer Jobs in the South East

Founding Engineer - London - Exciting Start-Up! Job Title: Backend Software Engineer Location: On-Site Type: Full-time We are looking for engineers excited about the opportunity to join an exciting security startup, detecting real intrusions before they become breaches. They are venture-backed and building modern tools for threat detection. Customers include some of the most security … conscious companies in the world, and they’re just getting started. What You’ll Do: We’re looking for a backend engineer to help us design and scale systems. You’ll work on telemetry pipelines, alerting infrastructure, internal APIs, and integrations with modern security tools. What We’re Looking For: 3+ years of experience building and maintaining backend systems … tooling or incident response workflows Why Join? Work on hard, meaningful problems in cybersecurity Be part of a fast, technical, remote-first team Competitive salary and meaningful equity Founding Engineer - London - Exciting Start-Up More ❯

Senior Software Engineer (Backend Focus) | London | Up to £160k 💷 Want to make a real impact in a fast-moving, early-stage environment? We’re looking for a Product Engineer with a backend bias to help design, build, and scale cutting-edge products. You’ll work across the stack, ship fast, and play a key role in shaping More ❯

Senior Software Engineer (Backend Focus) | London | Up to £160k 💷 Want to make a real impact in a fast-moving, early-stage environment? We’re looking for a Product Engineer with a backend bias to help design, build, and scale cutting-edge products. You’ll work across the stack, ship fast, and play a key role in shaping More ❯

Fullstack Software Engineer Salary: £70k - £140k+ Stock Options + Exceptional Benefits Location: London based team We're hiring on behalf of a cutting-edge tech company that's reimagining how software gets built - combining full-code flexibility with the power of no-code tools and generative AI into a unified platform. You'll work on a tool … This is a rare chance to learn from elite engineers and contribute directly to a really useful platform as a Fullstack Engineer. If you're a technically curious Fullstack engineer, ready to grow in a fast-paced AI environment, apply now More ❯

As a Senior Embedded Software Engineer, you will be responsible for the design, development, testing, and integration of embedded software for next-generation chemical and explosive trace detection products. Working within an Agile team of 4 to 6 engineers, you will collaborate closely with software and firmware engineers to deliver robust software solutions running on … ARM Cortex M33 microcontrollers and FreeRTOS real-time operating systems. Your role includes interpreting UML-based architectural designs, participating in design and code reviews, debugging, and maintaining software architecture and documentation. A regular on-site presence at the Hemel Hempstead site is required to facilitate close interaction with prototype and production hardware. Security clearance (BPSS on joining and eligibility … for SC clearance) is mandatory. Skills: Minimum 5 years' experience in embedded software development Strong proficiency in C and C++ programming Experience with ARM Cortex-M microcontrollers (Armv8-M, Cortex-M4, Cortex-M33, STM32) Familiarity with embedded real-time operating systems, especially FreeRTOS (also Keil RTX, ThreadX) Knowledge of embedded system design including hardware components and interfaces Experience with More ❯

Lead Software Engineer Reading £70-90k Do you have experience with embedded systems & AI? A fast-growing company in Reading is looking for someone like you to lead their Software Development team. You'll be able to lead the direction of the software architecture while working on real-life environmental solutions making the world a More ❯

Senior Embedded C++ Software Engineer 62ph (Inside IR35) Southampton (Hybrid) Initial 6 month contract Our Southampton facility is a leading UK centre of excellence for electro-optics, photonics, and laser-based technologies. The site focuses on the design, development, and manufacture of advanced systems used across defence, aerospace, and security applications. We play an important role in supplying … critical technologies to both the UK armed forces and international partners, contributing to next-generation capabilities in multiple domains. We are on the hunt for talented software engineers to support our Integrated Sensors & Protection line of business. Direct industry experience is not required, we are happy to explore all backgrounds. We want to develop a new generation of features … and capabilities using innovative software solutions and we need you to create them. Essential Bare metal embedded C++ software development Embedded interfaces e.g. CAN bus, I2C, SPI, GPIO Familiarity with the tools and approaches to embedded development Work in our Southampton office 1-4 days a week. Employees are welcome to work onsite 5 days a week, but More ❯

Senior Embedded C++ Software Engineer £62ph (Inside IR35) Southampton (Hybrid) Initial 6 month contract Our Southampton facility is a leading UK centre of excellence for electro-optics, photonics, and laser-based technologies. The site focuses on the design, development, and manufacture of advanced systems used across defence, aerospace, and security applications. We play an important role in supplying … critical technologies to both the UK armed forces and international partners, contributing to next-generation capabilities in multiple domains. We are on the hunt for talented software engineers to support our Integrated Sensors & Protection line of business. Direct industry experience is not required, we are happy to explore all backgrounds. We want to develop a new generation of features … and capabilities using innovative software solutions and we need you to create them. Essential Bare metal embedded C++ software development Embedded interfaces e.g. CAN bus, I2C, SPI, GPIO Familiarity with the tools and approaches to embedded development Work in our Southampton office 1-4 days a week. Employees are welcome to work onsite 5 days a week, but More ❯

Senior Embedded C++ Software Engineer £62ph (Inside IR35) Southampton (Hybrid) Initial 6 month contract **Please note we can only consider sole UK Nationals for this role** Our Southampton facility is a leading UK centre of excellence for electro-optics, photonics, and laser-based technologies. The site focuses on the design, development, and manufacture of advanced systems used across … role in supplying critical technologies to both the UK armed forces and international partners, contributing to next-generation capabilities in multiple domains. We are on the hunt for talented Software Engineers to support our Integrated Sensors & Protection line of business. Direct industry experience is not required, we are happy to explore all backgrounds. We want to develop a new … generation of features and capabilities using innovative software solutions and we need you to create them. Essential Bare metal embedded C++ software development Embedded interfaces e.g. CAN bus, I2C, SPI, GPIO Familiarity with the tools and approaches to embedded development Work in our Southampton office 1-4 days a week. Employees are welcome to work onsite 5 days More ❯

Java Software Engineer £55,000-£70,000/annum Once every two weeks on client site - likely London SC position - UK Eyes Only Sanderson Government and Defence are working alongside a growing, exciting consultancy business who have recently won several exciting new projects in the UK public sector. They are a highly flexible business, with the only on More ❯

be responsible for the delivery of exciting projects and products across our Civil Aviation, Defence and Public Sector industry verticals . Required Skills You will be a full stack Software Engineer with experience of enterprise grade software development and an agile development environment. Experience and Expertise: Years of Experience: 5 years in software engineering. Programming Languages … or AWS, is highly desirable. Continuous Integration/Continuous Deployment (CI/CD) : Experience with integration and deployment tools, understanding the principles of CI/CD pipelines for streamlined software delivery. Machine Learning/AI : Basic understanding of AI and machine learning concepts. Database : Understanding NoSQL databases. Numerate Degree Qualification – You should possess a computer science degree or other More ❯

be responsible for the delivery of exciting projects and products across our Civil Aviation, Defence and Public Sector industry verticals . Required Skills You will be a full stack Software Engineer with experience of enterprise grade software development and an agile development environment. Experience and Expertise: Years of Experience: 5 years in software engineering. Programming Languages … or AWS, is highly desirable. Continuous Integration/Continuous Deployment (CI/CD) : Experience with integration and deployment tools, understanding the principles of CI/CD pipelines for streamlined software delivery. Machine Learning/AI : Basic understanding of AI and machine learning concepts. Database : Understanding NoSQL databases. Numerate Degree Qualification – You should possess a computer science degree or other More ❯

Senior Software Engineer (Rust) - London - Permanent - £150,000 to £180,000 La Fosse have partnered with a cutting-edge digital trading firm (crypto & proprietary) who are building out their nascent London office . This is a rare opportunity to join at an early stage, with the chance to shape technical direction while working on high-performance, low-latency … building and optimizing low-latency, high-performance systems Bonus Skills: Knowledge of multithreading Familiarity with web protocols (REST, WebSocket) Experience with high-throughput systems If you’re a Rust engineer passionate about performance-critical systems and want to work on bleeding-edge trading technology , this is the opportunity to make a real impact. How to apply: Please click the More ❯

Senior Software Engineer (Rust) - London - Permanent - £150,000 to £180,000 La Fosse have partnered with a cutting-edge digital trading firm (crypto & proprietary) who are building out their nascent London office . This is a rare opportunity to join at an early stage, with the chance to shape technical direction while working on high-performance, low-latency … building and optimizing low-latency, high-performance systems Bonus Skills: Knowledge of multithreading Familiarity with web protocols (REST, WebSocket) Experience with high-throughput systems If you’re a Rust engineer passionate about performance-critical systems and want to work on bleeding-edge trading technology , this is the opportunity to make a real impact. How to apply: Please click the More ❯

Senior Software Engineer (Rust) - London - Permanent - £150,000 to £180,000 La Fosse have partnered with a cutting-edge digital trading firm (crypto & proprietary) who are building out their nascent London office . This is a rare opportunity to join at an early stage, with the chance to shape technical direction while working on high-performance, low-latency … building and optimizing low-latency, high-performance systems Bonus Skills: Knowledge of multithreading Familiarity with web protocols (REST, WebSocket) Experience with high-throughput systems If you’re a Rust engineer passionate about performance-critical systems and want to work on bleeding-edge trading technology , this is the opportunity to make a real impact. How to apply: Please click the More ❯

Senior Software Engineer/Platform Developer - backend and platform TypeScript, AWS London - hybrid (Tues/Weds/Thurs in offices near Farringdon tube station) around £80,000 - £90,000 plus package Discretionary bonus (10%), Private Healthcare, 25 Days holiday, 5% pension, Life Insurance, 2 Volunteering days a year, Season Ticket Loan Do you love music, storytelling and building … the tools that help a software team succeed? This organisation have helped tell some of the worlds most iconic stories. With a history spanning 24 years, 140 staff and a passion for the highest quality, they need a Senior Developer to be the architect and mechanic of their digital workshop. This Platform Developer role is about making life easier … Fixing core problems: You’ll handle tricky technical stuff (like infrastructure and systems) so the product team doesn't get slowed down. Building APIs: the bridges that let different software talk to each other. You’ll create and manage these bridges to make sure they’re safe, reliable, and can handle lots of use. Helping deploy software faster More ❯

Lead Software Engineer – AI Product London (Hybrid, 3–4 days in office) Permanent Oakwell Hampton are partnered with a fast-growing enterprise platform used by some of the world’s best-known brands. Their mission is to tackle one of the most important challenges of our time, and they’re now building a new AI-powered product to More ❯

Lead Software Engineer – AI Product London (Hybrid, 3–4 days in office) Permanent Oakwell Hampton are partnered with a fast-growing enterprise platform used by some of the world’s best-known brands. Their mission is to tackle one of the most important challenges of our time, and they’re now building a new AI-powered product to More ❯

Lead Software Engineer – AI Product London (Hybrid, 3–4 days in office) Permanent Oakwell Hampton are partnered with a fast-growing enterprise platform used by some of the world’s best-known brands. Their mission is to tackle one of the most important challenges of our time, and they’re now building a new AI-powered product to More ❯

financial institutions, and many more to accelerate their digital transformation. You can learn more about Cirium at . About the Team: You will join a collaborative, curious team of Software Engineers at various levels. By joining us, you will have the opportunity to share ownership in solving this problem end to end. About the role: As a Software Engineer III, you will perform moderately difficult research, design, and software development assignments within a specific software functional area or product line. The role requires the ability to work on individual pieces of work, solve problems, design program flow, and implement effective coding and unit testing. RELX is committed to advancing gender diversity within the tech … team members to finalize requirements Writing and reviewing detailed specifications for system components of moderate complexity Collaborating with the development team to understand product requirements and translate them into software designs Implementing development processes, coding best practices, and conducting code reviews Operating in various development environments (Agile, Waterfall, etc.) while collaborating with stakeholders Completing bug fixes and resolving technical More ❯

Electronics & Software Engineer Hastings, East Sussex Permanent up to £40,000 In this role you will be working for a small established manufacturing business who develop safety critical products used across a variety of industries such as rail, aerospace and automotive. The company has a mixture of off the shelf products and bespoke designs for customer projects click More ❯

Role: Senior Software Engineer Salary/Package: £80k-£120k + Equity Options Company Sector: AI & Healthtech Experience Level: Senior (5+ years) Tech: Java, Distributed Systems, Docker, Kubernetes, SQL, CI/CD Pipelines, React Location: Central London WFH/Hybrid: 2-3 days a week on site **No Sponsorship Opportunities** Bounce have partnered with a healthtech start up striving … to transform drug discovery by empowering researchers to revolutionise their workflows with gen AI. They're at the intersection of enterprise software, AI, and real-world problems within health & life sciences. The founders are all ex-Palantir, worked together for 6 years. They know this space extremely well and have already gained a lot of traction. . As one … their platform. Headlines: Open to language background - building in Java and React but no experience necessary Passion for solving complex tech challenges Motivation from solving real-world problems with software and AI Strong proactive problem-solving and doer mindset Comfort with ambiguity and rapid iteration A builder’s mindset with a passion for taking ideas from concept to reality More ❯

Role: Senior Software Engineer Salary/Package: £80k-£120k + Equity Options Company Sector: AI & Healthtech Experience Level: Senior (5+ years) Tech: Java, Distributed Systems, Docker, Kubernetes, SQL, CI/CD Pipelines, React Location: Central London WFH/Hybrid: 2-3 days a week on site **No Sponsorship Opportunities** Bounce have partnered with a healthtech start up striving … to transform drug discovery by empowering researchers to revolutionise their workflows with gen AI. They're at the intersection of enterprise software, AI, and real-world problems within health & life sciences. The founders are all ex-Palantir, worked together for 6 years. They know this space extremely well and have already gained a lot of traction. . As one … their platform. Headlines: Open to language background - building in Java and React but no experience necessary Passion for solving complex tech challenges Motivation from solving real-world problems with software and AI Strong proactive problem-solving and doer mindset Comfort with ambiguity and rapid iteration A builder’s mindset with a passion for taking ideas from concept to reality More ❯

Role: Senior Software Engineer Salary/Package: £80k-£120k + Equity Options Company Sector: AI & Healthtech Experience Level: Senior (5+ years) Tech: Java, Distributed Systems, Docker, Kubernetes, SQL, CI/CD Pipelines, React Location: Central London WFH/Hybrid: 2-3 days a week on site **No Sponsorship Opportunities** Bounce have partnered with a healthtech start up striving … to transform drug discovery by empowering researchers to revolutionise their workflows with gen AI. They're at the intersection of enterprise software, AI, and real-world problems within health & life sciences. The founders are all ex-Palantir, worked together for 6 years. They know this space extremely well and have already gained a lot of traction. . As one … their platform. Headlines: Open to language background - building in Java and React but no experience necessary Passion for solving complex tech challenges Motivation from solving real-world problems with software and AI Strong proactive problem-solving and doer mindset Comfort with ambiguity and rapid iteration A builder’s mindset with a passion for taking ideas from concept to reality More ❯

Software Engineer – AI & Data Platforms - Government We are looking for experienced Software Engineers to join a high-profile programme building secure, scalable digital platforms that integrate advanced AI services. You will be part of a cross-functional scrum team, developing the foundational business layer that powers next-generation personalised digital journeys. Key Responsibilities Design, build and maintain … integrate AI-driven services. Contribute to CI/CD pipelines, automated testing, and monitoring. Work in an agile environment, contributing to iterative delivery and technical documentation. Essential Skills Strong software engineering expertise in Node.js, JavaScript/TypeScript . Proven experience with AWS Lambda and serverless architectures. Track record delivering secure, scalable digital services in high-volume environments. Knowledge of … agile delivery, automated testing, and CI/CD. Familiarity with secure coding practices and compliance standards. Desirable Skills Background in security engineering (for one of the engineer roles). Experience integrating AI/LLM services into production systems. Knowledge of accessibility standards and government service patterns. More ❯