101 to 125 of 480 Software Engineer Jobs in the South East

Full Stack Software Engineer (Java Focus) Location: Flexible/Hybrid - Burnham Number of Openings - 4 About Us One of our strategic Partners is looking to build out their Software Engineering team focused on Java Full Stack Development. They are a SaaS Company and a leader in full-stack automation fabric solutions Their global team of automation experts … One Team Make Your Own Weather Obsess over Customer Success Work the Problem Be Curious Own the Outcome Respect Each Other The Role We are seeking a Full Stack Software Engineer with a strong focus on Java to join our growing engineering team. In this role, you’ll design, build, and maintain robust and scalable full-stack applications … testing, deployment, and support. Write clean, maintainable, well-documented code following best practices. Implement automated tests (unit, integration, and end-to-end) to ensure quality. Troubleshoot, debug, and resolve software defects and production issues. Contribute to architectural discussions to ensure scalability, security, and performance. Mentor junior engineers and foster a culture of continuous improvement. What You’ll Bring Bachelor More ❯

Full Stack Software Engineer (Java Focus) Location: Flexible/Hybrid - Burnham Number of Openings - 4 About Us One of our strategic Partners is looking to build out their Software Engineering team focused on Java Full Stack Development. They are a SaaS Company and a leader in full-stack automation fabric solutions Their global team of automation experts … One Team Make Your Own Weather Obsess over Customer Success Work the Problem Be Curious Own the Outcome Respect Each Other The Role We are seeking a Full Stack Software Engineer with a strong focus on Java to join our growing engineering team. In this role, you’ll design, build, and maintain robust and scalable full-stack applications … testing, deployment, and support. Write clean, maintainable, well-documented code following best practices. Implement automated tests (unit, integration, and end-to-end) to ensure quality. Troubleshoot, debug, and resolve software defects and production issues. Contribute to architectural discussions to ensure scalability, security, and performance. Mentor junior engineers and foster a culture of continuous improvement. What You’ll Bring Bachelor More ❯

Please note you must be able to pass Security Clearance for this position. Carbon60 is currently looking for a Software Engineer to join their client based in Portsmouth in their Space sector. This is a contract role lasting 12 months with the possible of extension. As a Software Engineer, you will contribute to software design … stages of the project development life cycle. Your responsibilities will include: - Assisting with defining or amending requirements in compliance with quality criteria - Determining interface requirements - Implementing design documents and software changes, including new and expanded functionality - Developing software to appropriate coding standards - Ensuring software meets requirements using appropriate test/inspection methods - Utilising agile development tools such More ❯

Principal Software Engineer - Shape the Future of UK GovTech Up to £95,000 + Premium Benefits Remote-First | Just 1 Day Onsite Every 2 Weeks SC Clearable | British Citizens Only Lead Innovation. Drive Transformation. Make an Impact. Ready to take the reins on projects that power national security and digital transformation This is your chance to lead at … the intersection of technology and purpose . As a Principal Software Engineer , you'll architect cloud-native platforms , mentor elite engineering teams, and influence technical strategy across mission-critical government programmes . Your work won't just be code-it will shape the future of UK GovTech . Your Role in Action Architect secure, scalable, resilient systems using More ❯

C++ Software Engineer London | Hybrid (2-3 days per week) | Competitive salary + bonus Ncounter is partnering with a leading trading technology group to hire an exceptional C++ Software Engineer to build and evolve high-performance order gateway systems used in fast-moving fixed income markets. This is a hands-on role developing ultra-low-latency … of developers, quants and platform engineers, working across a high-availability C++ codebase to deliver fast, resilient and observable services. You’ll be empowered to design, implement and test software that directly impacts trading performance, scalability and reliability. Key Responsibilities: • Design and develop high-throughput order gateway components in modern C++ • Implement robust connectivity, order validation and routing logic … is an opportunity to work at the heart of a global trading platform, building technology that traders and researchers rely on every day. If you’re a passionate C++ engineer who thrives on writing elegant, high-performance code, we’d love to hear from you. Apply now through Ncounter for a confidential discussion and to learn more about this More ❯

Founding Software Engineer 📍 Hybrid — London/Athens 🕒 Full-time | Mid/Senior Level 🚀 Founding Team About Us Inferity is transforming how teams search, analyze, and understand frontline video. From hours of unstructured body cam or incident footage to complex multi-source workflows, our AI-driven platform turns video into structured, decision-ready insights. We’re building AI agents … that reason across video, audio, language, and metadata, powering real-world workflows where accuracy, speed, context, and clarity are essential. The Role We’re looking for a Founding Software Engineer to lead backend and infrastructure development for our category-defining video understanding product. From data ingestion pipelines to scalable APIs, you’ll blend backend engineering and DevOps to More ❯

Founding Software Engineer 📍 Hybrid — London/Athens 🕒 Full-time | Mid/Senior Level 🚀 Founding Team About Us Inferity is transforming how teams search, analyze, and understand frontline video. From hours of unstructured body cam or incident footage to complex multi-source workflows, our AI-driven platform turns video into structured, decision-ready insights. We’re building AI agents … that reason across video, audio, language, and metadata, powering real-world workflows where accuracy, speed, context, and clarity are essential. The Role We’re looking for a Founding Software Engineer to lead backend and infrastructure development for our category-defining video understanding product. From data ingestion pipelines to scalable APIs, you’ll blend backend engineering and DevOps to More ❯

Founding Software Engineer 📍 Hybrid — London/Athens 🕒 Full-time | Mid/Senior Level 🚀 Founding Team About Us Inferity is transforming how teams search, analyze, and understand frontline video. From hours of unstructured body cam or incident footage to complex multi-source workflows, our AI-driven platform turns video into structured, decision-ready insights. We’re building AI agents … that reason across video, audio, language, and metadata, powering real-world workflows where accuracy, speed, context, and clarity are essential. The Role We’re looking for a Founding Software Engineer to lead backend and infrastructure development for our category-defining video understanding product. From data ingestion pipelines to scalable APIs, you’ll blend backend engineering and DevOps to More ❯

Python Software Engineer – High-Frequency Trading We're working with a high-frequency trading (HFT) firm that is looking to expand its technology team with a Python Software Engineer. This is an opportunity to join a trading firm operating at the cutting edge of global markets, where technology and speed are paramount. They build and run highly … that compete across major global exchanges. You’ll work on some of the most complex and rewarding engineering challenges in the financial technology space. The Role As a Python Software Engineer, you’ll collaborate with traders, quantitative researchers, and other developers to design, develop, and optimise trading infrastructure. You’ll be directly contributing to systems that operate at … time systems, or algorithmic trading. Why Apply? Opportunity to work on high-impact systems used in live trading. Collaborate with some of the brightest minds in quantitative finance and software engineering. Competitive compensation package with a base salary, plus bonus. We are reviewing applications on a rolling basis. If this role sounds like a fit, apply now to learn More ❯

Python Software Engineer – High-Frequency Trading We're working with a high-frequency trading (HFT) firm that is looking to expand its technology team with a Python Software Engineer. This is an opportunity to join a trading firm operating at the cutting edge of global markets, where technology and speed are paramount. They build and run highly … that compete across major global exchanges. You’ll work on some of the most complex and rewarding engineering challenges in the financial technology space. The Role As a Python Software Engineer, you’ll collaborate with traders, quantitative researchers, and other developers to design, develop, and optimise trading infrastructure. You’ll be directly contributing to systems that operate at … time systems, or algorithmic trading. Why Apply? Opportunity to work on high-impact systems used in live trading. Collaborate with some of the brightest minds in quantitative finance and software engineering. Competitive compensation package with a base salary, plus bonus. We are reviewing applications on a rolling basis. If this role sounds like a fit, apply now to learn More ❯

Python Software Engineer – High-Frequency Trading We're working with a high-frequency trading (HFT) firm that is looking to expand its technology team with a Python Software Engineer. This is an opportunity to join a trading firm operating at the cutting edge of global markets, where technology and speed are paramount. They build and run highly … that compete across major global exchanges. You’ll work on some of the most complex and rewarding engineering challenges in the financial technology space. The Role As a Python Software Engineer, you’ll collaborate with traders, quantitative researchers, and other developers to design, develop, and optimise trading infrastructure. You’ll be directly contributing to systems that operate at … time systems, or algorithmic trading. Why Apply? Opportunity to work on high-impact systems used in live trading. Collaborate with some of the brightest minds in quantitative finance and software engineering. Competitive compensation package with a base salary, plus bonus. We are reviewing applications on a rolling basis. If this role sounds like a fit, apply now to learn More ❯

Step into the future of defence technology with an exceptional opportunity as a Senior Software Engineer. If you're passionate about innovation and looking to make a real impact, this role offers you the chance to work on cutting-edge projects that redefine what's possible in the industry. Join a forward-thinking team that values excellence, creativity, and … career development. What You Will Do: Define, design, develop, and test embedded and application software to deliver high-quality solutions on time. Apply object-oriented design techniques to ensure code reusability and integration with testing frameworks. Review system design artefacts to derive software requirements and architecture that meet high-level system needs. Use modelling tools like RSA and … EA to document and maintain software designs, ensuring accuracy for code generation. Contribute to bids and proposals by generating technical estimates and identifying associated risks. Propose and implement improvements in tools, processes, and techniques to enhance software development efficiency. What You Will Bring: A degree in an engineering, mathematical, or science-based subject, or equivalent experience. Proficiency in More ❯

Principal Software Engineer (Golang | Distributed Systems) London – On-site Up to £170,000 base + 25% bonus + excellent benefits Permanent I’m partnered with a high-growth technology company building a world-class data and services platform that processes tens of billions of monthly requests — powering real-time insights for millions of users globally. They’re hiring … a Principal Software Engineer (Golang) to join their London engineering team as a hands-on technical leader — driving architectural direction, mentoring engineers, and solving complex distributed systems challenges at scale. The Opportunity Architect and scale high-throughput, event-driven systems built in Go Lead the evolution of real-time APIs and data platforms handling billions of requests Stay More ❯

Principal Software Engineer (Golang | Distributed Systems) London – On-site Up to £170,000 base + 25% bonus + excellent benefits Permanent I’m partnered with a high-growth technology company building a world-class data and services platform that processes tens of billions of monthly requests — powering real-time insights for millions of users globally. They’re hiring … a Principal Software Engineer (Golang) to join their London engineering team as a hands-on technical leader — driving architectural direction, mentoring engineers, and solving complex distributed systems challenges at scale. The Opportunity Architect and scale high-throughput, event-driven systems built in Go Lead the evolution of real-time APIs and data platforms handling billions of requests Stay More ❯

Principal Software Engineer (Golang | Distributed Systems) London – On-site Up to £170,000 base + 25% bonus + excellent benefits Permanent I’m partnered with a high-growth technology company building a world-class data and services platform that processes tens of billions of monthly requests — powering real-time insights for millions of users globally. They’re hiring … a Principal Software Engineer (Golang) to join their London engineering team as a hands-on technical leader — driving architectural direction, mentoring engineers, and solving complex distributed systems challenges at scale. The Opportunity Architect and scale high-throughput, event-driven systems built in Go Lead the evolution of real-time APIs and data platforms handling billions of requests Stay More ❯

Step into the future of defence technology with an exceptional opportunity as a Senior Software Engineer. If you're passionate about innovation and looking to make a real impact, this role offers you the chance to work on cutting-edge projects that redefine what's possible in the industry. Join a forward-thinking team that values excellence, creativity, and … work on high-profile programmes, this is your chance to thrive in a role that truly matters. What You Will Do: - Define, design, develop, and test embedded and application software to deliver high-quality solutions on time. - Apply object-oriented design techniques to ensure code reusability and integration with testing frameworks. - Review system design artefacts to derive software requirements and architecture that meet high-level system needs. - Use modelling tools like RSA and EA to document and maintain software designs, ensuring accuracy for code generation. - Contribute to bids and proposals by generating technical estimates and identifying associated risks. - Propose and implement improvements in tools, processes, and techniques to enhance software development efficiency. What You Will More ❯

Senior Software Engineer - Python, Django, REST, AWS&GCP - £80,000 - £105,000 Are you passionate about sustainability and innovation? Join a cutting-edge London-based startup that's revolutionizing how businesses achieve net zero. With £10 million in funding and a growing team of 10 talented engineers , this company is leading the charge in simplifying sustainability through technology. … About the Role As a Software Engineer , you'll be at the forefront of developing scalable solutions using Python , Django , and REST and more, helping businesses take meaningful steps toward reducing their carbon footprint. What You'll Do Design, build, and maintain robust web applications and services. Collaborate with a tight-knit, high-performing team to deliver impactful More ❯

Lead Software Engineer - Java Microservices Location: London (Hybrid - 2 days on-site, Monday and Tuesday) Overview We're excited to be supporting our client in hiring a talented Software Engineer (Java Microservices) to join a dynamic, high-performing engineering team within retail banking. This is a fantastic opportunity for a technically minded individual who's passionate … about building fast, reliable, and scalable software within a complex distributed environment. You'll play a key role in designing, developing, testing, and implementing modern microservices-based applications running in the public cloud. This is a hands-on position within a feature team that works collaboratively across the full software development lifecycle. What You'll Be Doing Designing … producing, testing, and implementing high-quality software across the system lifecycle Working within a permanent feature team focused on delivering business-critical services in a fast-paced Agile environment (two-week sprints) Collaborating with architects, principal engineers, and key stakeholders to align technical solutions with business objectives Applying Agile and Test-Driven Development (TDD) principles to build resilient, fast More ❯

Embedded C Software Engineer Location: Stevenage Contract: 6-Month Contract (Likely Extension) Rate: £51.98/hour PAYE (£59.54/hour incl. holiday) or £68/hour Umbrella We seek an engineer who has worked in a military/defence environment/industry within the last 12 months or who is capable of obtaining security clearance (SC level … minimum) Overview This engineering role focuses on the development and implementation of embedded C software solutions for real-time systems. The successful candidate will work on-site within a collaborative engineering environment, contributing to the design and programming of embedded systems operating on bare-metal and real-time operating systems. Key Responsibilities Design and develop embedded software using … C for real-time applications. Implement and debug bare-metal software solutions. Develop software within real-time operating systems such as FreeRTOS. Apply UML methodologies for structured software design. Manage and trace software requirements using DOORS. Support testing, integration, and validation of embedded software. Collaborate with multidisciplinary engineering teams throughout the software lifecycle. Ensure software More ❯

C++ Software Engineer Portsdown West (PO17) Full-time Onsite Salary £40,000 - £60,000 25 days annual leave inclusive of up to 3 days Christmas shut-down Buy or sell up to 5 days annual leave Annual Wellbeing allowance Two pension schemes to choose from Private Medical Insurance + discounts for additional family members Life Assurance scheme up … full operational potential. About the Role MASS is growing its Electronic Warfare Operations Support Group (EWOS) at Portsdown West, (Fareham, Hampshire). We are looking for a talented C++ Software Engineer with experience of working with simulation models, to aid Operational Analysis and support cutting edge research, development, and delivery projects, led by our technical customer, Dstl. This … Given the complex RF environments represented in ITASE, radar knowledge is essential and highly desirable in any candidate. What we are looking for: Strong background in modelling/simulation software development. Strong C++ programming skills. Experience with Visual Studio/Windows development tools. Knowledge of RF, countermeasure and flyout simulation tools, ideally gained within a defence setting. Radar systems More ❯

innovative and interesting applications for the marine industry. If you are a meticulous individual with a passion for working on cutting edge projects, this could be ideal for you. Software Engineer Marine applications Permanent £40,000 - £45,000 dependant on experience We are seeking a skilled and detail-oriented Software Engineer to join our engineering team. … In this role, you will be responsible developing advanced autonomy and control systems for autonomous marine vessels. Responsibilities will include: Software design and development in line with system requirements, with a focus on simulation, autonomy, and communication. Developing and maintaining tools and simulation environments for testing autonomous behaviours and system integration. Testing and validation of software, including unit … testing, simulation-based testing, bench testing, and sea trials. Production of comprehensive software documentation. Conducting peer reviews to ensure designs are reliable, modular, and maintainable. Collaborating closely with the software and engineering teams to ensure timely delivery of high-quality software and documentation. Qualifications and Experience: Required: Degree-level qualification in a physical science or engineering such More ❯

Senior Software Engineer – IOS Location: London Department Please Select Salary Range: Not Specified Advertising End Date: 28 Oct 2025 **Job Description** Role: Senior Software Engineer – Mobile – iOS Location: London Contract: Permanent The News UK Tech team is at the core of one of the world's leading media companies, bringing together talented individuals to tackle exciting … functional, and diverse, with members based in London, Sofia, and Bangalore. Together, we are united by our passion for delivering world-class digital experiences. Role:As a Senior Mobile Engineer, you will contribute to the development of best-in-class mobile apps, working closely with product owners, stakeholders, and your engineering peers to deliver innovative, high-quality solutions. You … will report to a Principal Engineer, supporting the delivery of technical strategies and tactical implementations, while also mentoring other engineers to maintain high standards of engineering excellence. Day to day you will: Develop new features and optimise existing ones for mobile applications, ensuring they meet business and user needs. Collaborate with product owners, stakeholders, and cross-functional teams to More ❯

Join us as a Software Engineer for our client. At Peregrine, we’re always seeking Specialist Talent that have the ideal mix of skills, experience, and attitude, to place with our vast array of clients. From Business Analysts in large government organisations to Software Developers in the private sector – we are always in search of the best … be deployed across our portfolio of clients as a specialist consultant, working on a wide array of complex projects across multiple industries. The Role: We are looking for a Software Engineer with a strong foundation in API development and C# to join our data engineering team in a highly regulated industry. In this role, you’ll be instrumental … in designing and building scalable, secure software systems that support seamless data movement between internal systems, third-party platforms, and cloud services. Your core focus will be developing and maintaining APIs and backend services that enable data ingestion, transformation, and delivery across our enterprise architecture. You’ll collaborate with cross-functional teams to ensure data is available where and More ❯

Join us as a Software Engineer for our client. At Peregrine, we’re always seeking Specialist Talent that have the ideal mix of skills, experience, and attitude, to place with our vast array of clients. From Business Analysts in large government organisations to Software Developers in the private sector – we are always in search of the best … be deployed across our portfolio of clients as a specialist consultant, working on a wide array of complex projects across multiple industries. The Role: We are looking for a Software Engineer with a strong foundation in API development and C# to join our data engineering team in a highly regulated industry. In this role, you’ll be instrumental … in designing and building scalable, secure software systems that support seamless data movement between internal systems, third-party platforms, and cloud services. Your core focus will be developing and maintaining APIs and backend services that enable data ingestion, transformation, and delivery across our enterprise architecture. You’ll collaborate with cross-functional teams to ensure data is available where and More ❯

World Class Defence Organisation based in Stevenage, Hertfordshire is currently looking to recruit an Embedded ADA Software Engineer subcontractor on an initial 12 month contract. The role will likely be required to be onsite, but it can be worked on a 4-day week basis. Hourly Rate: £70.00ph (Umbrella). Overtime Rate: Hours worked over the standard … . Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter. IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview Embedded ADA Software Engineer Job Description: Join the growing Software team in Stevenage, working as part of a dynamic team to develop, test and deliver innovative solutions by exploiting a … wide portfolio of software technologies. You will work as part of a small team and be empowered to work individually with little supervision. You will need to be able to work independently and be self driven whilst providing some technical leadership. You will need to be very proactive and comfortable working with teams outside of the SW department, and More ❯