51 to 75 of 85 Senior Software Engineer Jobs in Slough

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

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

Senior C++ Software Engineer - Architect Are you a postive person who looks to continously improve themselves, their Code and ways of working? Would you like to see your Code make our World a better place for all? How would you like to contribute to a Multi Award Winning Company, who’s products serve the greater good for More ❯

Job Title: Senior Software Engineer (Distributed Systems & ML Infrastructure) Client: Elite Tech Firm Salary: Up to £220k Base + Industry-Leading Bonus Location: London (Hybrid) Sells: Work on next-gen distributed systems and ML infrastructure, take ownership of multiple greenfield builds, zero bureaucracy, a genuinely collaborative culture, stunning offices, and dedicated time for personal projects every Friday … An Elite FinTech firm is expanding its world-class engineering team and looking for exceptional Software Engineers who thrive on solving complex distributed problems at scale. You’ll be joining an elite group of engineers (alumni of NUS/McGill/MIT/Oxford) who have previously built systems at Meta, Twitter, Citadel, Ubisoft, and Jane Street ! This environment … total engineering autonomy, and a culture that genuinely celebrates innovation and curiosity. Role Design and build high-performance, distributed systems for large-scale ML infrastructure Drive best practices in software architecture, testing, and scalability Lead and collaborate on multiple greenfield initiatives focused on performance, reliability, and scale Skills Open to all experience levels Proven experience coding in Python Strong More ❯

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

now entering an exciting scale-up phase. This is a unique opportunity to join and directly shape a pioneering consumer product. Role Overview We are looking for an outstanding Senior Software Engineer to join our fast-moving journey. You’ll be a key contributor across the stack in our Rust-based environment, building intuitive experiences and scalable … code reviews, mentor engineers, and support hiring as we grow Take ownership from concept to delivery, including infrastructure (deployments, observability, CI/CD) Must-Have Qualifications 5+ years in software engineering (flexible if skills and impact are strong) Strong foundations in typed languages (e.g., C++, Scala, Rust, Java, C#, Swift) Strong understanding of core programming concepts, including variable assignments More ❯

AI, Robotics & Autonomy are exploding right now, and this role is right at the cutting edge. I’m working with a top robotics firm hiring Senior Software Engineers into their R&D team, building systems that push the limits of computer vision, deep learning, and autonomous vehicle/machinery. You’ll be joining brilliant minds from Tesla, Google … DeepMind, NVIDIA and more. 💼 Role: Senior Engineer – Computer Vision/Autonomous Machinery 🌍 Location: London (onsite) 💸 Package: Negotiable + stock options What you’ll be doing Training policies via representation learning, behaviour cloning & RL from data to deployment. Building pipelines that fuse vision, language, audio, proprioception & 3D data. Scaling distributed training + optimising models for real-time edge inference. More ❯

Senior TypeScript Engineer – London – AI Start-up Location: London (Hybrid) Compensation: Up to £150K Atarus have partnered with a rapidly growing YC-backed AI start-up looking to hire a Senior TypeScript Engineer . This is an opportunity to join at the ground floor of a company that’s already secured a strong seed round, launched … with enterprise clients, and has ambitious growth plans over the next year. You’ll be joining a small, senior founding team who are redefining how AI-powered software is built — already gaining traction with customers ranging from Series A startups to global tech giants. 🔍 What You’ll Be Doing Building and shipping new product features end-to-end More ❯

We’re looking for a seasoned software engineer who thrives on building in new domains. This role sits at the intersection of infrastructure and networking, perfect for a developer who loves tackling unfamiliar technical areas, learns fast, and brings strong engineering fundamentals. You’ll be responsible for leading design discussions, owning projects end-to-end, and mentoring junior … developers. While networking knowledge is useful, what matters most is your software development expertise and ability to apply it in infrastructure-heavy environments. What you’ll be doing: Designing and building tools and services that support networking and infrastructure teams Driving technical design conversations and guiding architectural decisions Leading by example with clean, scalable Python/Go development Mentoring … the technical bar across the team Learning new areas quickly and applying your expertise to solve complex infrastructure problems What we’re looking for: 7+ years of hands-on software development experience (Python and/or Go strongly preferred) Proven track record of delivering production systems in infrastructure, Linux, or systems engineering environments Strong knowledge of Linux, ideally with More ❯

Senior Product Engineer (Mobile - React Native) | AI SaaS Company | London A well-funded AI SaaS company is hiring for a Senior Product Engineer (Mobile) to take full ownership of its core mobile platform. This company is building an innovative product that delivers real-world insights to a growing global client base and is supported by a More ❯

Senior Full Stack Software Engineer (backend leaning) 💵 £90-£120k + equity 💻 Serverless AWS, Typescript (backend), Next.js & React 🏠 Central London | Hybrid 3 days on-site 🚀 Series A We are currently partnered with one of the fastest growing SaaS companies in Europe to help them scale their London engineering team and grow from 20 engineers to 40+. Their product … to manage their workflows, and they've found a strong product market fit with plenty of household name clients. Their engineering bar is high, they have a product-orientated software engineering team that enjoy working on complex challenges, solving problems and having big impact. They've attracted engineers from some of the best tech companies out there. About you … 5+ years of experience in software engineering, building full-stack applications Experience across the JS/Typescript stack would be ideal. The role is backend leaning but full-stack Driven by high-impact and ownership Have a product mindset and enjoys team collaboration for high performance If this sounds of interest, please do apply and we look forward to More ❯

We are looking to speak with Senior Software Engineers for our client, a growing SaaS company. Key Responsibilities: Design and Architect scalable, reliable, and high-performance services and APIs. Write clean, optimised, and maintainable code primarily in TypeScript within an AWS cloud environment. Lead technical reviews and drive best engineering practices across the team (testing, CI/CD … documentation). Collaborate cross-functionally with Product Managers and Design to translate business requirements into technical solutions. Key Requirements: 5+ years of professional experience in software development, with 2+ years in a Senior capacity within a fast-paced SaaS or tech environment. Proven experience designing and deploying applications in a microservices/distributed architecture. More ❯

We are recruiting on behalf of a leading financial institution seeking a skilled eFX Software Engineer to join their electronic trading team in London. Acting a Senior within the team, this role offers the chance to work on cutting-edge, low-latency FX trading platforms that support global markets, while shaping innovative solutions in a collaborative environment. More ❯

with the Machine Learning team to understand the underlying concepts and user flows; however, you are not required or expected to have background in Machine Learning. This is a senior-level role, and we are looking to hire a software engineer with background in product design, UI/UX design, and with a strong sense of aesthetics. … experience: Experience with a startup work environment and wider ecosystem. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + public holidays allowance. Opportunities for professional growth and progression with your career. Work on More ❯

at https://www.eunice.ai! About the role At Eunice, we are building the trusted infrastructure for digital assets and tokenized finance. We’re looking for a full-stack software engineer to join our fast-growing startup. This is an exciting opportunity for someone who enjoys a fast paced environment; loves the challenge to solve some of the … knowledge in at least one popular coding language for building web-based applications on both FE and BE, ideally Typescript, Javascript/NodeJS, etc. You have experience with common software and system design patterns and infrastructure including APIs, cloud infrastructure tools, storage solutions, data structures etc. Ideally you have experience working on AI/Crypto projects, or you are More ❯

candidate will contribute to the growth of the platform, exercising an eye for detail across all aspects of the development lifecycle while maintaining organization and good code hygiene. This engineer should be able to effectively communicate both with internal teams and with clients. The successful candidate will help Glint continue to grow, exercising an eye for detail across all … aspects of the development lifecycle while maintaining organization and good code hygiene. This Senior Engineer should be able to effectively communicate both with internal teams and with clients. The successful candidate values teamwork and collaboration, as well as continuous learning and application of new technologies and trends. With progression in this track, the responsibilities expand to include leading … teams, designing complex software systems, providing mentorship, and managing cross-functional integration. Responsibilities: Design, build, deploy, and maintain quality code that is simple, well-structured, clear, and well-tested. Effectively break down and solve complex problems that require research or collaboration. Communicate effectively, regardless of medium, audience, or timing. Work with internal and external clients to gather and analyze More ❯

Senior Java Developer - Java, Springboot & AWS – paying up to £600/day (Inside IR35) – Hybrid (2x a week - London) – 6 month contract Our client is seeking a Senior Java Developer who is passionate about clean code, cloud-native systems, and building technology that makes a real impact. This is a unique opportunity to work in an agile, high More ❯

Senior Python Developer – London – AI Start-up Location: London (Hybrid) Compensation: Up to £150K Atarus have partnered with a rapidly growing YC-backed AI start-up looking to hire a Senior Python Developer . This is an opportunity to join at the ground floor of a company that’s already secured a strong seed round, launched with enterprise … clients, and has ambitious growth plans over the next year. You’ll be joining a small, senior founding team who are redefining how AI-powered software is built — already gaining traction with customers ranging from Series A startups to global tech giants. 🔍 What You’ll Be Doing Designing, building, and deploying high-performance Python applications Working directly with … match it. ✅ What They’re Looking For 5+ years’ experience in Python development (or impressive personal projects) Strong experience with backend systems, APIs, and cloud infrastructure Solid understanding of software design and architecture principles A genuine builder mindset — someone who loves experimenting and delivering fast Based in London (or able to work onsite when needed) If you’re excited More ❯

Location: London (3 days a week onsite) | 💰 Up to £80,000 per annum We’re looking for a Senior Backend Engineer to join a high-impact product team shaping the future of travel loyalty experiences. You’ll help design and build scalable backend systems that power a seamless journey for millions of travellers around the world. What You … technical mentorship and contribute to engineering best practices. Advocate for new tools, technologies, and frameworks to drive innovation. What We’re Looking For 5+ years of experience in backend software development with strong CS fundamentals. Proven experience designing and developing APIs and distributed systems. Strong sense of ownership with a focus on performance, reliability, and maintainability. Excellent communication and More ❯

Senior Java Developers – 3 positions available We’re looking for three experienced Java developers to play a key role in delivering long-term projects and supporting the growth of the wider engineering team. A rapidly growing healthtech scale-up is transforming how hospitals deliver care across the UK — and they're now expanding their development team at pace. In More ❯

Senior/Technical Lead - Flutter (Mainly hands-on with oversight of a team of 4) London (Hybrid) - 2/3x a week onsite intially for first couple of months then potential to be more remote £90,000-£10,000 We’re partnering with a fast-growing company that’s transforming how people interact with tech. Join a workplace-tech … of the world’s most advanced smart-building platforms, powered by digital twins, real-time analytics, and seamless third-party integrations They’re now looking for a Lead Mobile Engineer with deep Flutter expertise to take ownership of their client-facing apps. This is a hands-on technical leadership role, you’ll set the technical direction, mentor a small … team, and work directly with senior leadership to deliver the roadmap. What you’ll be doing: Own the mobile roadmap & architecture (Flutter, Swift, Java) Lead from a technical perspective: design, code, review, and mentor Integrate with complex third-party SDKs (BLE, mobile access, indoor wayfinding) Drive engineering excellence in testing, performance, monitoring, and CI/CD Collaborate closely with More ❯

Founding Product Engineer | Early-stage AI startup (hire #5) 💰 Up to £130,000 + meaningful early-stage equity % 🏢 Building together 4 days a week onsite in London bloom are working with a Seed stage AI startup on a mission to reinvent one of the world’s most painfully manual workflows, the kind of industry where automation is still in More ❯

everyone to have personal dignity at work and be empowered, so you can be your best, true authentic self each and every day. About the Role Write clean, maintainable software to critical deadlines whilst following best engineering practices. Understanding and solving challenging problems through simplistic solutions and services. Architect and build using technology that is best suited to solving … in central London one day per week to catch up with other team members. The role may also require occasional travel to other offices when necessary. About You Talented engineer with a passion for software quality, an eye for continuous improvements, and a solution-based approach that focuses on the bigger picture whilst remaining pragmatic and operating within … known constraints. Ideally 5+ years' hands-on commercial experience architecting, designing and implementing resilient and reliable software and integration solutions, but if you are technically talented, passionate and can communicate then we're interested to hear from you regardless of experience years. Demonstrable software development experience in .NET Core, C# plus one of Blazor, JavaScript, Angular, Azure, RabbitMQ More ❯

Role : Senior, Staff & Principal Engineers Salary range: 90 - 150k (+ equity) Location : Central London (x3 days per week onsite - Tue/Wed/Thurs) Tech stack includes : Typescript, React, Material UI, NodeJS, Postgres, AWS (Serverless) Current team size : 25 Engineers We're working with a B2B SaaS startup company based in London, an AI procurement platform - reduces time & money More ❯

Trading System Engineer – Shape the Future of Trading Leading European Private Bank Ready to make a real impact on a cutting-edge trading platform? A leading European private bank is seeking a highly skilled Trading System Engineer/Architect to spearhead the transformation of their equity trading technology. This is a unique opportunity to contribute to a multi … Execution Platform. Guarantee the system's high availability for global equity market trading. Craft bespoke trading workflows tailored to the specific needs of demanding clients across multiple trading desks. Engineer and optimize systems for dynamic scalability, ensuring responsiveness to market fluctuations and events. Collaborate closely with other IB Engineering teams and project stakeholders. What You Bring: A minimum of … five years of experience in software engineering, with a focus on modern software design, architectural patterns, and performance optimization (throughput, latency, capacity). Expert-level proficiency in Java, particularly in the development of high-performance, low-latency, and microservice-based real-time trading applications. Deep understanding of trading systems, including integration with reference and market data systems, ideally More ❯