1,451 to 1,475 of 2,292 Software Engineering Jobs in the South East

Python Software Engineer needed to play a pivotal role in evolving our client's core platform — developing APIs, data workflows, and system integrations that power bespoke digital tools for major clients. You’ll work hands-on with Python, FastAPI, SQL, and orchestration tools, taking automation-generated code and making it production-ready. You’ll also be a champion of … AI-assisted development, helping to embed LLM-based workflows into day-to-day engineering processes. Key Responsibilities Build and enhance backend features and integrations (Python, FastAPI, gRPC, SQL). Extend auto-generated pipelines and front-end automation outputs. Develop connectors for APIs, files, and external systems. Integrate LLM-based capabilities with strong testing and monitoring practices. Lead best practices More ❯

Python Software Engineer needed to play a pivotal role in evolving our client's core platform — developing APIs, data workflows, and system integrations that power bespoke digital tools for major clients. You’ll work hands-on with Python, FastAPI, SQL, and orchestration tools, taking automation-generated code and making it production-ready. You’ll also be a champion of … AI-assisted development, helping to embed LLM-based workflows into day-to-day engineering processes. Key Responsibilities Build and enhance backend features and integrations (Python, FastAPI, gRPC, SQL). Extend auto-generated pipelines and front-end automation outputs. Develop connectors for APIs, files, and external systems. Integrate LLM-based capabilities with strong testing and monitoring practices. Lead best practices More ❯

At a Glance Capsa is an AI platform that accelerates due diligence and deepens insights for Private Equity funds. We are hiring senior software engineers who are comfortable contributing across all layers of the application and developing features end to end. Details: Role : Senior Software Engineer - Full Stack Location : London, UK (Hybrid, In-Person 4 days a week … companies like QinetiQ and retail tech startups such as Standard AI. The entire team consists of early-stage startup veterans passionate about building exceptional products. The Role A senior software engineer at Capsa is expected to own projects and features from conception to production, working across the stack to deliver improvements to our AI platform. Key responsibilities include: Improving … vision and will have a direct impact on its success. Have the opportunity for fast career growth. Enjoy yourself! Apply if: You have 4+ years of experience as a software engineer in a venture backed startup or top tech firm. You have taken entire products or features from ideation to production and you've measured their impact. You have More ❯

At a Glance Capsa is an AI platform that accelerates due diligence and deepens insights for Private Equity funds. We are hiring senior software engineers who are comfortable contributing across all layers of the application and developing features end to end. Details: Role : Senior Software Engineer - Full Stack Location : London, UK (Hybrid, In-Person 4 days a week … companies like QinetiQ and retail tech startups such as Standard AI. The entire team consists of early-stage startup veterans passionate about building exceptional products. The Role A senior software engineer at Capsa is expected to own projects and features from conception to production, working across the stack to deliver improvements to our AI platform. Key responsibilities include: Improving … vision and will have a direct impact on its success. Have the opportunity for fast career growth. Enjoy yourself! Apply if: You have 4+ years of experience as a software engineer in a venture backed startup or top tech firm. You have taken entire products or features from ideation to production and you've measured their impact. You have More ❯

At a Glance Capsa is an AI platform that accelerates due diligence and deepens insights for Private Equity funds. We are hiring senior software engineers who are comfortable contributing across all layers of the application and developing features end to end. Details: Role : Senior Software Engineer - Full Stack Location : London, UK (Hybrid, In-Person 4 days a week … companies like QinetiQ and retail tech startups such as Standard AI. The entire team consists of early-stage startup veterans passionate about building exceptional products. The Role A senior software engineer at Capsa is expected to own projects and features from conception to production, working across the stack to deliver improvements to our AI platform. Key responsibilities include: Improving … vision and will have a direct impact on its success. Have the opportunity for fast career growth. Enjoy yourself! Apply if: You have 4+ years of experience as a software engineer in a venture backed startup or top tech firm. You have taken entire products or features from ideation to production and you've measured their impact. You have More ❯

Principal Software Engineer High-growth, Purpose-Led and A funded Fintech Hybrid - London Python, TypeScript, React A leading fintech scale-up is hiring a Senior Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to a platform designed to improve finance globally - with real impact at scale. The company … stability across the world - all via a modern, mobile-first platform. Backed by leading venture capital and impact investors, the organisation is entering a new phase of growth, with engineering at the core. The Opportunity As a Senior Engineer, you will play a key role in designing and delivering scalable, reliable systems that handle significant volumes of real-time … tangible value. Contribute to technical strategy , support platform scalability, and lead by example through code reviews and mentoring. Maintain a user-centred mindset , constantly measuring and iterating on how engineering decisions translate into product value. Technical Environment: Languages & Frameworks : Python, TypeScript, React, Svelte Infrastructure & Tools : AWS, PostgreSQL, Snowflake, CI/CD pipelines Ways of Working : Agile squads, continuous delivery More ❯

Principal Software Engineer | High-growth, Purpose-Led and A* funded Fintech | Hybrid – London **Python, TypeScript, React** A leading fintech scale-up is hiring a Senior Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to a platform designed to improve finance globally — with real impact at scale. The company … stability across the world — all via a modern, mobile-first platform. Backed by leading venture capital and impact investors, the organisation is entering a new phase of growth, with engineering at the core. The Opportunity As a Senior Engineer, you will play a key role in designing and delivering scalable, reliable systems that handle significant volumes of real-time … tangible value. Contribute to technical strategy , support platform scalability, and lead by example through code reviews and mentoring. Maintain a user-centred mindset , constantly measuring and iterating on how engineering decisions translate into product value. Technical Environment: Languages & Frameworks : Python, TypeScript, React, Svelte Infrastructure & Tools : AWS, PostgreSQL, Snowflake, CI/CD pipelines Ways of Working : Agile squads, continuous delivery More ❯

Principal Software Engineer | High-growth, Purpose-Led and A* funded Fintech | Hybrid – London **Python, TypeScript, React** A leading fintech scale-up is hiring a Senior Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to a platform designed to improve finance globally — with real impact at scale. The company … stability across the world — all via a modern, mobile-first platform. Backed by leading venture capital and impact investors, the organisation is entering a new phase of growth, with engineering at the core. The Opportunity As a Senior Engineer, you will play a key role in designing and delivering scalable, reliable systems that handle significant volumes of real-time … tangible value. Contribute to technical strategy , support platform scalability, and lead by example through code reviews and mentoring. Maintain a user-centred mindset , constantly measuring and iterating on how engineering decisions translate into product value. Technical Environment: Languages & Frameworks : Python, TypeScript, React, Svelte Infrastructure & Tools : AWS, PostgreSQL, Snowflake, CI/CD pipelines Ways of Working : Agile squads, continuous delivery More ❯

Principal Software Engineer | High-growth, Purpose-Led and A* funded Fintech | Hybrid – London **Python, TypeScript, React** A leading fintech scale-up is hiring a Senior Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to a platform designed to improve finance globally — with real impact at scale. The company … stability across the world — all via a modern, mobile-first platform. Backed by leading venture capital and impact investors, the organisation is entering a new phase of growth, with engineering at the core. The Opportunity As a Senior Engineer, you will play a key role in designing and delivering scalable, reliable systems that handle significant volumes of real-time … tangible value. Contribute to technical strategy , support platform scalability, and lead by example through code reviews and mentoring. Maintain a user-centred mindset , constantly measuring and iterating on how engineering decisions translate into product value. Technical Environment: Languages & Frameworks : Python, TypeScript, React, Svelte Infrastructure & Tools : AWS, PostgreSQL, Snowflake, CI/CD pipelines Ways of Working : Agile squads, continuous delivery More ❯

Forward Deployed Software Engineer - London Location: London, UK (Hybrid) Salary: £80,000-£100,000 Start Date: Flexible A high-growth technology company is seeking a mission-driven Forward Deployed Software Engineer (FDE) to join its London team. This is a unique opportunity for engineers with strong data and product instincts who want to build impactful solutions that drive … a fast-paced, startup-like environment Hybrid working model The Company This organisation partners with ambitious enterprises and government agencies to solve their most critical challenges. It builds custom software products that integrate enterprise data into operator-focused workflows, enabling transformative outcomes at speed. The company operates more like a product startup than a traditional consultancy - valuing velocity, ingenuity … and grit. The Role As a Forward Deployed Engineer, you'll work directly with stakeholders to understand their most valuable challenges and build operationalised software solutions that drive measurable impact. You'll be embedded with clients, iterating quickly, and delivering end-to-end applications that reshape how organisations operate. This is a hands-on engineering role with a More ❯

Forward Deployed Software Engineer – London Location: London, UK (Hybrid) Salary: £80,000-£100,000 Start Date: Flexible A high-growth technology company is seeking a mission-driven Forward Deployed Software Engineer (FDE) to join its London team. This is a unique opportunity for engineers with strong data and product instincts who want to build impactful solutions that drive … a fast-paced, startup-like environment Hybrid working model The Company This organisation partners with ambitious enterprises and government agencies to solve their most critical challenges. It builds custom software products that integrate enterprise data into operator-focused workflows, enabling transformative outcomes at speed. The company operates more like a product startup than a traditional consultancy - valuing velocity, ingenuity … and grit. The Role As a Forward Deployed Engineer, you’ll work directly with stakeholders to understand their most valuable challenges and build operationalised software solutions that drive measurable impact. You’ll be embedded with clients, iterating quickly, and delivering end-to-end applications that reshape how organisations operate. This is a hands-on engineering role with a More ❯

Forward Deployed Software Engineer – London Location: London, UK (Hybrid) Salary: £80,000-£100,000 Start Date: Flexible A high-growth technology company is seeking a mission-driven Forward Deployed Software Engineer (FDE) to join its London team. This is a unique opportunity for engineers with strong data and product instincts who want to build impactful solutions that drive … a fast-paced, startup-like environment Hybrid working model The Company This organisation partners with ambitious enterprises and government agencies to solve their most critical challenges. It builds custom software products that integrate enterprise data into operator-focused workflows, enabling transformative outcomes at speed. The company operates more like a product startup than a traditional consultancy - valuing velocity, ingenuity … and grit. The Role As a Forward Deployed Engineer, you’ll work directly with stakeholders to understand their most valuable challenges and build operationalised software solutions that drive measurable impact. You’ll be embedded with clients, iterating quickly, and delivering end-to-end applications that reshape how organisations operate. This is a hands-on engineering role with a More ❯

Forward Deployed Software Engineer – London Location: London, UK (Hybrid) Salary: £80,000-£100,000 Start Date: Flexible A high-growth technology company is seeking a mission-driven Forward Deployed Software Engineer (FDE) to join its London team. This is a unique opportunity for engineers with strong data and product instincts who want to build impactful solutions that drive … a fast-paced, startup-like environment Hybrid working model The Company This organisation partners with ambitious enterprises and government agencies to solve their most critical challenges. It builds custom software products that integrate enterprise data into operator-focused workflows, enabling transformative outcomes at speed. The company operates more like a product startup than a traditional consultancy - valuing velocity, ingenuity … and grit. The Role As a Forward Deployed Engineer, you’ll work directly with stakeholders to understand their most valuable challenges and build operationalised software solutions that drive measurable impact. You’ll be embedded with clients, iterating quickly, and delivering end-to-end applications that reshape how organisations operate. This is a hands-on engineering role with a More ❯

Embedded Software Engineer £45,000 - 65,000 GBP Onsite WORKING Location: Stevenage, Central London, Greater London - United Kingdom Type: Permanent Embedded Software Engineer Location: Stevenage Onsite 4-5 Days per week Clearance: Must be able to obtain or hold active SC Clearance!* Employment Type: Full Time Europe's #1 Integrated Defence Company seeks talented Embedded Software Engineers … to help support the ongoing and future design, build, test and implementation of subsystem software for its next-gen Missile Systems. You'd be welcomed into a highly collaborative multidiscipline team, consisting of Software, Systems & Electronics Engineers, who specialise in hard real-time software development primarily using SysML/UML and C, C++ or Ada programming and … Essential Experience: Real-Time Operating Systems (Highly Desirable) Experience developing in languages such as C++, C, ADA or Rust and motivated to develop reliable, high-performance, standardised, and documented software Understanding of standardised bus systems and protocols Excellent analytical and design ability, including review and critical analysis 'Can do' and flexible approach - you'll enjoy solving technical problems that More ❯

Software Engineer (Rust, Python, and JavaScript) Alton, Hampshire (Hybrid after probation) Must be Eligible for SC Clearance £30,000 - £50,000 Depending on Experience Join a specialist technical consultancy delivering innovative solutions across software development, data science, AI, and engineering click apply for full job details More ❯

Job title: Principal Software Engineer Location: Luton - Hybrid Salary: Up to £80k Clearance: SC eligible (Sole UK Nationals only) Duration: Permanent We are hiring for experienced C++ Senior/Principal Software Engineers on a permanent basis to be based in Luton. This position is for embedded software development in an end-to-end role focused on electronic … warfare systems. As a software engineer, you will work within an integrated project team and be responsible for creating high quality and robust designs and code; for fully documenting and recording your work products; keeping them under configuration management and providing plans and progress reports. Work Experience: Languages: C+ or higher versions Tools: Visual Studio 2019 VxWorks IBM DOORS … Essential Skills and Qualifications: Strong programming expertise in C+, with extensive experience using Visual Studio for development, debugging, and performance optimisation. Proven ability to design, implement, and maintain embedded software on RTOS platforms such as VxWorks, including target integration and validation. Strong grasp of Object-Oriented Design (OOD) principles. Strong unit test skills using tools such as MS Test More ❯

Senior Software Engineer (C++) – Real-Time Market Data Systems Company Insight: A leading global quant trading firm is looking for a senior software engineer experienced in market data processing to help evolve the firm's real-time market data platform - a critical system that supports both trading and research operations across the firm. The firm develops and applies … and deliver long-term results. Responsibilities: Build and enhance real-time market data and distribution pipelines spanning global markets and multiple asset classes. Design and optimise high-performance, distributed software systems for processing market data at scale. Champion engineering best practices and innovation. Serve as a technical leader in market data systems. Apply data-driven performance analysis to … streamline workflows and improve system efficiency. Requirements: Strong academic background in Computer Science, Engineering, Physics, Mathematics, or a related discipline. Proficiency in C++ and experience with additional object-oriented languages (C#, Java). Understanding and experience working in Linux environment. Experience using Python, Shell, or similar scripting tools for automation and data processing. Proven experience with tick-by-tick More ❯

Senior Software Engineer (C++) – Real-Time Market Data Systems Company Insight: A leading global quant trading firm is looking for a senior software engineer experienced in market data processing to help evolve the firm's real-time market data platform - a critical system that supports both trading and research operations across the firm. The firm develops and applies … and deliver long-term results. Responsibilities: Build and enhance real-time market data and distribution pipelines spanning global markets and multiple asset classes. Design and optimise high-performance, distributed software systems for processing market data at scale. Champion engineering best practices and innovation. Serve as a technical leader in market data systems. Apply data-driven performance analysis to … streamline workflows and improve system efficiency. Requirements: Strong academic background in Computer Science, Engineering, Physics, Mathematics, or a related discipline. Proficiency in C++ and experience with additional object-oriented languages (C#, Java). Understanding and experience working in Linux environment. Experience using Python, Shell, or similar scripting tools for automation and data processing. Proven experience with tick-by-tick More ❯

Senior Software Engineer (C++) – Real-Time Market Data Systems Company Insight: A leading global quant trading firm is looking for a senior software engineer experienced in market data processing to help evolve the firm's real-time market data platform - a critical system that supports both trading and research operations across the firm. The firm develops and applies … and deliver long-term results. Responsibilities: Build and enhance real-time market data and distribution pipelines spanning global markets and multiple asset classes. Design and optimise high-performance, distributed software systems for processing market data at scale. Champion engineering best practices and innovation. Serve as a technical leader in market data systems. Apply data-driven performance analysis to … streamline workflows and improve system efficiency. Requirements: Strong academic background in Computer Science, Engineering, Physics, Mathematics, or a related discipline. Proficiency in C++ and experience with additional object-oriented languages (C#, Java). Understanding and experience working in Linux environment. Experience using Python, Shell, or similar scripting tools for automation and data processing. Proven experience with tick-by-tick More ❯

Role: Software Engineer Salary: £50,000 - £65,000 - DOE Location: London (Hybrid) Type: Permanent About the job: Are you an experienced Software Engineer who loves variety and still loves learning new things, while connecting with new people along the way? This role could be for you! This role requires a software engineer for the development and ongoing … support of the software applications for the internal systems and the businesses clients. You will be principally working in a team of 12 working on a single product across the full development stack and will have the opportunity to contribute towards all aspects of the project. Ideally you will have between 2-4 years of experience and be a … keen learner with ambition to take your career to the next level. Software Engineer required skills: .NET (ASP.NET) C# HTML, CSS JavaScript/TypeScript SQL Angular or React is preferred You must be UK based & have full right to work in the UK. If this role matches your professional background or you think you'd be a strong match More ❯

Role: Software Engineer Salary: £50,000 - £65,000 - DOE Location: London (Hybrid) Type: Permanent About the job: Are you an experienced Software Engineer who loves variety and still loves learning new things, while connecting with new people along the way? This role could be for you! This role requires a software engineer for the development and ongoing … support of the software applications for the internal systems and the businesses clients. You will be principally working in a team of 12 working on a single product across the full development stack and will have the opportunity to contribute towards all aspects of the project. Ideally you will have between 2-4 years of experience and be a … keen learner with ambition to take your career to the next level. Software Engineer required skills: .NET (ASP.NET) C# HTML, CSS JavaScript/TypeScript SQL Angular or React is preferred You must be UK based & have full right to work in the UK. If this role matches your professional background or you think you’d be a strong match More ❯

Role: Software Engineer Salary: £50,000 - £65,000 - DOE Location: London (Hybrid) Type: Permanent About the job: Are you an experienced Software Engineer who loves variety and still loves learning new things, while connecting with new people along the way? This role could be for you! This role requires a software engineer for the development and ongoing … support of the software applications for the internal systems and the businesses clients. You will be principally working in a team of 12 working on a single product across the full development stack and will have the opportunity to contribute towards all aspects of the project. Ideally you will have between 2-4 years of experience and be a … keen learner with ambition to take your career to the next level. Software Engineer required skills: .NET (ASP.NET) C# HTML, CSS JavaScript/TypeScript SQL Angular or React is preferred You must be UK based & have full right to work in the UK. If this role matches your professional background or you think you’d be a strong match More ❯

About Us: Sanderson Government and Defence are working with a specialist software consultancy which provide bespoke solutions to help solve their customers complex operational problems. As the business continues to grow the company are interested in speaking with experienced Full Stack Software Engineers with expertise in Java to join a live project. You will be designated an office … customers on a regular basis. The Opportunity We have a wide variety of teams who support our customers on a range of interesting and complex projects, building new bespoke software solutions and providing them with up-to-date capability to meet their needs. As a Senior Software Engineer, you will join an Agile focused team, gaining exposure to … Implementing software solutions including design, development and testing Using a wide range of technologies, specialising in the use of open-source libraries and components Utilising tools to build continuous integration pipelines, which help monitor and ensure software quality and security Deploying software systems to a mixture of environments, including public and private cloud Full Software Lifecycle More ❯

with cutting-edge technology, make an immediate impact, and collaborate with a team that values innovation, agility, and real-world problem-solving. What You'll Bring Experience as a software engineer, ideally in fast-paced tech environments. Strong skills in C#, .NET Core, React, AWS/Azure, and database systems (SQL/NoSQL). One or more of Aurora … collaborative approach. A self-starter attitude - comfortable working independently within a distributed team. What You'll Be Doing Build, enhance, and deliver new features across the company's core software platforms. Troubleshoot and resolve complex technical issues in production environments. Collaborate with engineering and product teams to design scalable, maintainable solutions. Conduct code reviews and champion high-quality … engineering practices. Contribute to architectural discussions and help define technical direction. Mentor junior engineers and share best practices across the team. Contract Snr .NET Engineer - C#, SQL, React, AWS/Azure - £550/day (OUTSIDE IR35) - Hybrid More ❯

We are looking for several Penetration Testers with Web, Infrastructure testing and Red Teaming, to join a Software Engineering organisation that develops a wide range of market-leading InsureTech solutions. Joining a small but growing team within a larger organisation, you'll come from a background in penetration testing or vulnerability research. Contributing to the development of innovative More ❯