176 to 200 of 981 Remote Software Engineer Jobs

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 … 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 data and transactions. You'll collaborate with product, data … and platform teams to deliver high-impact features that directly improve user financial wellbeing. This is a hands-on role for an engineer who values clean architecture, measurable outcomes, and meaningful user impact. What You’ll Do: Design and implement distributed systems that are resilient, scalable, and secure. Own technical decision-making across architecture and implementation — selecting the right More ❯

Software Engineer London, UK £85,000 basic plus bonus We’re looking for a Software Engineer to join a team that specialise in optimising large-scale, high-performance systems used by demanding clients worldwide. You’ll work across the full delivery lifecycle, from profiling and tuning code, to rethinking architectures ensuring software runs with maximum … testing frameworks Mentoring engineers on writing efficient, scalable, and maintainable code Contributing to architectural decisions that directly impact performance and reliability What we’re looking for Solid experience in software engineering with strong experience in Python, Java, or C# Proven track record of performance tuning in large-scale, distributed systems Expertise in profiling tools, memory management, and debugging complex … leading bonus structures Tech Stack: Python, Java, C#, Postgres, Kubernetes, Docker, AWS, Azure, k6, JMeter, Gatling If you’re passionate about pushing the boundaries of performance engineering and building software that scales effortlessly, we’d love to hear from you. More ❯

Software Engineer London, UK £85,000 basic plus bonus We’re looking for a Software Engineer to join a team that specialise in optimising large-scale, high-performance systems used by demanding clients worldwide. You’ll work across the full delivery lifecycle, from profiling and tuning code, to rethinking architectures ensuring software runs with maximum … testing frameworks Mentoring engineers on writing efficient, scalable, and maintainable code Contributing to architectural decisions that directly impact performance and reliability What we’re looking for Solid experience in software engineering with strong experience in Python, Java, or C# Proven track record of performance tuning in large-scale, distributed systems Expertise in profiling tools, memory management, and debugging complex … leading bonus structures Tech Stack: Python, Java, C#, Postgres, Kubernetes, Docker, AWS, Azure, k6, JMeter, Gatling If you’re passionate about pushing the boundaries of performance engineering and building software that scales effortlessly, we’d love to hear from you. More ❯

World Class Defence Organisation is currently looking to recruit a C#/C++ Software Engineer subcontractor on an initial 12 month contract. The department are happy to consider candidates with a mixture of C# and C++ or someone with just C# experience. Job Title: C#/C++ Software Engineer Rate: £65.00 per hour Location: Stevenage Hybrid … per week will be calculated at ‘time and a quarter’ Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) C#/C++ Software Engineer Job Description: WSSE are integral in the development of weapon systems and system architectures, and as a result we have developed a capability supporting developments across the … work as part of a heterogeneous agile development team, made up of mixed discipline engineers working in synergy to develop simulations and representations of real equipment. Our approach to software development includes Configuration control Continuous Integration Continuous Delivery or Deployment. Unit testing and test driven development. Skillset/experience required: Proficient in C#/C++ Microsoft Visual Studio, Eclipse More ❯

World Class Defence Organisation is currently looking to recruit a C#/C++ Software Engineer subcontractor on an initial 12 month contract. The department are happy to consider candidates with a mixture of C# and C++ or someone with just C# experience. Job Title: C#/C++ Software Engineer Rate: £65.00 per hour Location: Stevenage Hybrid … per week will be calculated at time and a quarter Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) C#/C++ Software Engineer Job Description: WSSE are integral in the development of weapon systems and system architectures, and as a result we have developed a capability supporting developments across the … work as part of a heterogeneous agile development team, made up of mixed discipline engineers working in synergy to develop simulations and representations of real equipment. Our approach to software development includes Configuration control Continuous Integration Continuous Delivery or Deployment. Unit testing and test driven development. Skillset/experience required: Proficient in C#/C++ Microsoft Visual Studio, Eclipse More ❯

Software Engineer – Robotics & Industrial AI Platform Location: Reading Hybrid: Onsite 2-3 days per week Languages: C++, Python, TypeScript (Angular or React) Desirable: AWS familiarity We are a growing technology company building a platform that supports fleets of autonomous inspection robots and turns large volumes of sensor and image data into clear, actionable intelligence. Our software helps … cloud platform and user interfaces that operators use to run missions, view inspection data, manage alerts, and interact with AI analysis tools. The Opportunity We’re looking for a software engineer with solid foundations and roughly 2–3 years of professional experience. You’ll join a small, experienced team and work across back end, front end, and robotics … processing, UI development, and embedded/robotics integration. This is a role for someone curious, adaptable, and willing to learn. Why Join Us? Work at the intersection of cloud software, robotics, and applied AI Learn across the full stack: back end, front end, data processing, and device integration Real product, deployed with enterprise customers Supportive environment to grow into More ❯

Contract Software Engineer/Lead Developer - Expert The Role We're looking for an exceptional Software Engineer/Back-End Developer - a true "super dev" - with proven Design Patterns expertise and a deep understanding of software engineering/development. This is a high-level contract role, suitable for someone operating at a Principal Engineer or Lead Engineer level. You'll join a small, highly skilled team building a new platform driven by innovative algorithms, clever data structures, and design patterns-based architecture. Working closely with the Head of Architecture, you'll take abstract concepts and requirements, distil them, and deliver high-quality, elegant solutions. This is a role for someone who thrives … based. Rate: circa 680 per day (inside IR35) Duration: 6 months initially Start: ASAP September 2025 Key Responsibilities Lead the back-end development of a new platform. Apply advanced software engineering/development and design patterns Translate abstract concepts into working, production-ready solutions. Employ Test-Driven Development (TDD) and SOLID principles. Build robust, scalable algorithms and efficient data More ❯

Contract Software Engineer/Lead Developer - Expert The Role We're looking for an exceptional Software Engineer/Back-End Developer - a true "super dev" - with proven Design Patterns expertise and a deep understanding of software engineering/development. This is a high-level contract role, suitable for someone operating at a Principal Engineer or Lead Engineer level. You'll join a small, highly skilled team building a new platform driven by innovative algorithms, clever data structures, and design patterns-based architecture. Working closely with the Head of Architecture, you'll take abstract concepts and requirements, distil them, and deliver high-quality, elegant solutions. This is a role for someone who thrives … based. Rate: circa £680 per day (inside IR35) Duration: 6 months initially Start: ASAP September 2025 Key Responsibilities Lead the back-end development of a new platform. Apply advanced software engineering/development and design patterns Translate abstract concepts into working, production-ready solutions. Employ Test-Driven Development (TDD) and SOLID principles. Build robust, scalable algorithms and efficient data More ❯

Software Engineer – Next-Generation Derivatives Risk Platform 📍 Location: London (Hybrid – 1 day/week in office, flexibility for the right candidate) 💰 Day Rate: £850 per day 🧾 IR35: Outside 🗓️ Interview Process: Starts 12th November 2025 🚀 Start Date: 5th January 2026 CV's are not being reviewed until WC 3rd November We’re partnering with a global investment bank to … hire an exceptional Software Engineer to join a flagship team delivering a next-generation, high-performance derivatives risk platform . This is a mission-critical front-office role working on real-time distributed systems with exceptional technical standards. You’ll be part of a high-calibre team solving complex engineering challenges and shaping the future of risk technology … DevOps, CI/CD Emerging tech: WebAssembly, AI integration, and AI frameworks Systems: Cross-platform, distributed, scalable real-time environments This is a genuine technologist’s role — building critical software that combines engineering precision, scalability, and innovation. What We’re Looking For Very strong expertise in one of C#, Python or Java , ideally with working knowledge of another. Rust More ❯

Software Engineer – Next-Generation Derivatives Risk Platform 📍 Location: London (Hybrid – 1 day/week in office, flexibility for the right candidate) 💰 Day Rate: £850 per day 🧾 IR35: Outside 🗓️ Interview Process: Starts 12th November 2025 🚀 Start Date: 5th January 2026 CV's are not being reviewed until WC 3rd November We’re partnering with a global investment bank to … hire an exceptional Software Engineer to join a flagship team delivering a next-generation, high-performance derivatives risk platform . This is a mission-critical front-office role working on real-time distributed systems with exceptional technical standards. You’ll be part of a high-calibre team solving complex engineering challenges and shaping the future of risk technology … DevOps, CI/CD Emerging tech: WebAssembly, AI integration, and AI frameworks Systems: Cross-platform, distributed, scalable real-time environments This is a genuine technologist’s role — building critical software that combines engineering precision, scalability, and innovation. What We’re Looking For Very strong expertise in one of C#, Python or Java , ideally with working knowledge of another. Rust 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 … 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 … 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 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 … 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 … 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 More ❯

Mentioneer means you'll be joining a driven team, with big plans, at a genuinely exciting time for our business. The role We're looking for an enthusiastic Senior Software Engineer to contribute to our leading SaaS platform. We power customer referral programs for hundreds of brands and have recently introduced an exciting Influencer Management product already adopted … in product and technology from the ground up in a small team that loves continuous improvement, this role is perfect for you. Requirements We're looking for an enthusiastic software engineer who possesses strong expertise in PHP development (or similar) and data, ideally with a proven ability in data engineering concepts and tooling, and keen to help figure … report, doing a POC for a new marketing automation integration with one of our partners or working with our data scientists on cutting edge AI products. As a Senior Software Engineer you will be driving technical best practices within the team and contributing to architectural decisions for backend and data systems. Essentials Our list of essentials below is More ❯

Software Engineer – Fintech We’re looking for a talented Back-End Software Engineer with a passion for building high-performance financial systems. You’ll join a small, highly skilled engineering team developing technology that powers cutting-edge financial technology platforms used across global markets. Location: London (Hybrid) Salary: £75,000 - £100,000 (DOE) What You’ll … Design and build data-driven back-end systems for financial analytics, trading, and risk management. Work with quants and product specialists to translate complex financial concepts into scalable, elegant software solutions. Develop and deploy cloud-native services on AWS, from APIs to event-driven microservices using Python (Django/FastAPI) and Rust. Model and manage structured financial data across … for real-world financial workloads. Contribute to architectural decisions and continuous improvements that keep the platform fast, secure, and scalable. What You’ll Bring Strong experience in back-end software engineering, ideally in a fintech, trading, or financial systems environment. Proficiency in Python or Rust Solid understanding of relational and NoSQL databases (MySQL, MongoDB, DynamoDB, etc.). Exposure to More ❯

Software Engineer – Fintech We’re looking for a talented Back-End Software Engineer with a passion for building high-performance financial systems. You’ll join a small, highly skilled engineering team developing technology that powers cutting-edge financial technology platforms used across global markets. Location: London (Hybrid) Salary: £75,000 - £100,000 (DOE) What You’ll … Design and build data-driven back-end systems for financial analytics, trading, and risk management. Work with quants and product specialists to translate complex financial concepts into scalable, elegant software solutions. Develop and deploy cloud-native services on AWS, from APIs to event-driven microservices using Python (Django/FastAPI) and Rust. Model and manage structured financial data across … for real-world financial workloads. Contribute to architectural decisions and continuous improvements that keep the platform fast, secure, and scalable. What You’ll Bring Strong experience in back-end software engineering, ideally in a fintech, trading, or financial systems environment. Proficiency in Python or Rust Solid understanding of relational and NoSQL databases (MySQL, MongoDB, DynamoDB, etc.). Exposure to More ❯

Software Engineer London/Hybrid | Perm Role £80,000 - £100,000 Harrington Starr has partnered with a fast-growing fintech that’s transforming how businesses manage foreign exchange and treasury operations. Their technology enables clients to access institutional-grade execution, automate manual workflows, and gain greater transparency across their financial processes. Handling billions in transactions each year, they … continue to expand their product offering and deliver cutting-edge solutions that help clients manage risk more effectively. The Role This is an excellent opportunity for an experienced Software Engineer — ideally with a background in financial technology or FX — to join a high-performing engineering team within a scaling fintech. You’ll be instrumental in developing and enhancing … the company’s core trading and treasury systems, building new features, improving performance, and driving integration across their technology stack. Key Responsibilities Develop and maintain software across the full stack Contribute to architecture and design decisions Support, optimise, and maintain production code Research and integrate new technologies Foster a culture of engineering excellence and continuous improvement Key Requirements 5+ More ❯

Software Engineer - Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 Company: VC back Startup About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution at a … thousands of design alternatives. Faster and more intelligently than ever before. Looking for someone who enjoys writing clean, wellstructured code and has a genuine interest in engineering.. not just software, but how things are built in the real world. Backed by one of Europe's leading VCs and with a 4-year runway. This company has assembled one of … the strongest technical founding teams I've seen. Bringing together brilliant minds from Cambridge, MIT, and Google across Software Engineering, Data Science, Theoretical Physics, and Computational Geometry. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event More ❯

I'm recruiting for a brand-new tech start-up in Cheltenham who are looking for an Embedded Software Engineer to help develop their range of products. The work involves low-level (some bare-metal and some RTOS) embedded C development on ARM micros for products used in harsh-environments across the globe. ROLE: Embedded Software Engineer LOCATION: Cheltenham SALARY: up to £60k START: ASAP Skills required for the Embedded Software Engineer are: Embedded C ARM-based microcontrollers Bare-metal and RTOS development Communications protocols (UART/I2C/SPI) BLE/WiFi/GPRS interfacing Whilst the majority of work will be done on-site in Cheltenham, the business can offer flexibility with More ❯

Job Title: Software Engineer/Senior Software Engineers – Linux, C++, Networking, Python (All Levels) Location: Bristol - Hybrid Type: Full-time, 12 month FTC Salary: Competitive, commensurate with experience Whether you have 18 months or 5+ years of relevant experience, if you’re passionate about building high-performance systems in a dynamic environment, we’d love to hear … from you. About the Role We are partnering with a well-established high-tech scale-up to find experienced Software Engineers to join their dynamic and innovative team. This is a hands-on engineering role where you’ll be instrumental in the design, development, and maintenance of advanced systems and associated platforms. You’ll work across planned software feature development, real-time troubleshooting, and complex systems integration. This is a great opportunity to deepen your skills in high-performance software and modern infrastructure while working in a collaborative, fast-paced environment. Key Responsibilities Develop, enhance, and maintain robust software solutions for mission-critical systems. Design and implement multithreaded C++ applications for data processing. Script tools More ❯

Software Engineer - Crewe - Hybrid working 💰 £50,000–£60,000 📍Crewe - Hybrid Ready to build real tech — not just talk about it? We’re looking for a Software Engineer who’s hands-on, curious, and obsessed with creating products that actually work in the real world. You’ll be working on IoT and computer vision systems that … blend software, data, and hardware into something genuinely clever. Here’s the tech you’ll live in: 🐍 Python 👁️ OpenCV 🐧 Linux ☁️ AWS 🔁 CI/CD Even better if you bring: ⚙️ C++ experience 📡 IoT or embedded product experience What you’ll love: 💸 £50K–£60K base 📍 Hybrid working 🚀 Freedom to experiment, build, and make an impact fast The truth is... this isn More ❯

Software Engineer - .NET/C#/Vue.js/Azure .NET, C#, Vue.js, Azure Salary up to £50k Hybrid - 2 days a week on-site (North-west UK) For more information, please email me directly at Patrick.doyle @searchability.com or call on Who We Are: We're a fast-paced and collaborative tech organisation focused on building innovative, scalable, and … resilient software solutions. Our applications support thousands of users every day, and we take pride in delivering robust, high-quality systems using modern engineering practices and technologies. Our engineering culture is built around autonomy, creativity, and continuous improvement, giving you the opportunity to shape solutions that truly make an impact. Who We're Seeking: We're looking for a … Software Engineer with solid full-stack experience who's passionate about building modern, cloud-based applications. You'll join a well-established engineering team working on a mixture of exciting projects and ongoing improvements, with the freedom to explore new technologies and influence architectural direction. What You'll Be Doing: Use the latest web technologies including .NET, C# More ❯

Principal Software Engineer – Full Stack (Java/React) Level: Senior/Principal - £80,000–£95,000 Location: UK-wide | Hybrid (Client site travel as required) Function: Full Stack Development | Agile Delivery | Technical Leadership Industry: Consulting | Public Sector | Digital Transformation Base office: Manchester, Bristol, Cheltenham, or Plymouth Lead software excellence. Deliver strategic impact. Join a specialist UK software consultancy delivering high-impact software solutions for public sector clients. They are seeking Principal Software Engineers to lead teams, shape delivery strategy, and drive innovation across government projects. About the Role As a Principal Software Engineer, you will lead multiple teams, combining hands-on full stack development with technical leadership and client engagement. You will … ensure the delivery of scalable, high-quality solutions and mentor engineers to achieve both team and project success. What You’ll Be Doing • Leading and mentoring two software teams across full lifecycle projects • Designing, developing, testing, and deploying software using Java and React • Engaging directly with clients to understand requirements and deliver high-value solutions • Driving Agile processes More ❯

Software Engineer - Shape the Future of Automation Technology Salary: Up to £55,000 + Excellent Benefits Location: Fully Remote (UK-based) Are you a skilled Software Engineer looking to make a meaningful impact? Join a trailblazing tech company at the forefront of automation innovation. With record-breaking growth and a bold vision for the future, this More ❯

Do you love working on tech making a positive impact in the world? Looking to be part of a collaborate, innovate team? ♻ Software Engineer - Renewable Energy for Car Charging ♻ 💰 Package: Up to £80k + bonus + equity 📍 Location: Hybrid in London (2x per week) We are very excited to be continuing our partnership on this exclusive position to … join the company as a Kotlin Software Engineer from a JVM background. You will be joining a highly innovative scale-up leading at the forefront of the GreenTech industry, as they assist in the global transition towards sustainable living, by providing affordable access to clean energy for the charging of electric vehicles. In this position, they are looking … from home 3x per week) If you'd love to work with Kotlin on impactful projects, while taking the next step in your career, apply now for this exciting Software Engineer opportunity! Please note : Due to compliancy reasons, we will only be able to consider applications based in and eligible to work the UK. More ❯

Do you love working on tech making a positive impact in the world? Looking to be part of a collaborate, innovate team? ♻ Software Engineer - Renewable Energy for Car Charging ♻ 💰 Package: Up to £80k + bonus + equity 📍 Location: Hybrid in London (2x per week) We are very excited to be continuing our partnership on this exclusive position to … join the company as a Kotlin Software Engineer from a JVM background. You will be joining a highly innovative scale-up leading at the forefront of the GreenTech industry, as they assist in the global transition towards sustainable living, by providing affordable access to clean energy for the charging of electric vehicles. In this position, they are looking … from home 3x per week) If you'd love to work with Kotlin on impactful projects, while taking the next step in your career, apply now for this exciting Software Engineer opportunity! Please note : Due to compliancy reasons, we will only be able to consider applications based in and eligible to work the UK. More ❯