126 to 150 of 163 Software Engineering Jobs in the City of London

Data Infrastructure: Familiarity with the modern data stack, including time-series databases, object stores, and streaming frameworks like Apache Flink or Spark Streaming . Engineering Rigor: You write clean, testable, and reliable code. You understand that in this environment, a system failure can cost millions in seconds. Bonus … Engineering: Experience with model serving, feature stores, or integrating ML pipelines into live production systems is highly valued. (Note: Previous finance experience is not required). To be considered for this role and others like it apply directly, or sign up to Dex and we'll help find ...

partnered with an innovative proprietary trading firm in the City of London that is hiring a Senior C# Software Engineer . You’ll work on greenfield projects, cutting-edge technology, and play a key part in shaping systems that directly influence trading performance. Key Benefits Competitive salary with ...

Product team, Infrastructure team, and QA team, to produce high performance, low latency and highly reliable code. Your goal will be to develop software which handle large amount of TPS to drive a highly efficient technology used by several markets around the world, including ourselves. To be successful … this role as a Senior Software Engineer C++, you will be a proponent of agile methodology and modern software best practices. You can produce detailed technical work in OOP and work with other members of the Development team to produce code of high-quality standards. Ideally, you should ...

c. £300k Comp Package | Hybrid Working] Role Overview We’re working with a high-growth trading and digital-assets firm seeking a seasoned engineering leader to take ownership of their client-facing technology ecosystem. As the organisation expands into new markets and contends with evolving regulatory demands, this role … will spearhead the architecture and delivery of platforms that underpin client onboarding, reporting, data exchange, and compliance workflows. You’ll guide the engineering strategy for a suite of internal and external systems - including CRM tooling, realtime reporting pipelines, API integrations, client portals, and surveillance utilities - while coaching a small ...

Senior Software Engineer, Python, Django, ReactJS, JavaScript, PHP, Mainly Remote, Central London Senior Software Engineer (Python, Django, ReactJS) required to work for a fast growing and exciting business based in Central London. However, this role is mainly remote. We need an experienced Python Developer who is a good ...

Senior Software Engineer Location: London (Hybrid) Contract Duration: 6 months Join a specialized Applied AI team driving innovation in business operations. The group accelerates AI transformation by developing agentic systems and full-stack infrastructure to automate workflows and drive efficiency click apply for full job details ...

Founding Software Engineer (AI/Legal Tech) An early-stage AI startup is building a platform used in some of the most complex, high-stakes legal cases across the UK and US. The product enables elite law firms to move faster through drafting core case documents to analysing judgments ...

looking for a Senior-level Software Engineer with strong JavaScript/TypeScript skills and experience across modern web stacks. You'll be instrumental in our transition away from Drupal as we modernise and scale our platform. Tech Stack: At least 4 years commercial experience with JavaScript or TypeScript ...

Central London - Hybrid A high-growth, privately backed Enterprise SaaS company is seeking a Senior Core Java Engineer to join its London-based engineering team. The organisation builds large-scale, mission-critical platforms used by some of the most sophisticated technology and financial services environments globally. This … opportunity to work on low-latency, high-throughput distributed systems, solving complex engineering problems at scale within a collaborative, high-performing team. Key Responsibilities Design, build and maintain high-performance distributed Java services Contribute across design, development, testing, deployment and support Collaborate closely with other engineers to deliver customer ...

meets automation: smarter for your team, safer for your data, and better for the planet. 🎯 The Role We’re looking for a Founding (Senior) Software Engineer to build and shape the Klyk platform from zero-to-one. This is a foundational position with significant autonomy, where you’ll work … power the future of our IT, hardware, and cyber offerings. As an early technical hire, you will influence everything from architecture and tooling to engineering culture and long-term product direction. Expect variety, ownership, and the opportunity to help define how a modern, sustainable IT platform should work. This ...

such as Claude and Cursor . If you have not used these or similar tools yet. This position is probably not for you. Backend Engineering experience using either Java, Golang or Rust. Experience working with Kafka/event-driven systems . Package & Benefits Up to 150,000 Base Salary ...

Senior Software Engineer (Robotics) 🤖 London (On-site, 5 days/week) Permanent role with excellent on-site benefits We’re looking for a Senior Software Engineer to help turn our advanced robotics stack into a dependable, real-world product. This is a hands-on role where … write production code, integrate subsystems, and work directly with robots in both simulation and hardware environments 🤖. You’ll build application-level software that connects control, navigation, perception, learning, and platform systems —ensuring they operate as a seamless, reliable whole. Expect cross-disciplinary collaboration, rapid iteration, and solving practical ...

technically adept Support & DevOps Engineer to maintain and enhance our production trading environment. This unique hybrid role blends BAU support responsibilities with advanced DevOps engineering tasks, ensuring robust operational efficiency and technical excellence. The successful candidate will provide real-time operational support, build next-generation reconciliation tools for trade … Provide support for production environment issues, promptly diagnosing and resolving problems, both offline and in real-time. Communicate effectively with internal customers and senior software engineers to resolve and escalate issues clearly and efficiently. Design, develop, and maintain advanced reconciliation applications to ensure consistency across digital and traditional finance ...

Software Engineer Were now on the lookout for a Software Engineer to support our UK Production Support team that is working on delivering high-quality support and solutions to clients. In your role as Software Engineer, youll work closely with internal teams and clients to resolve issues ...

Senior Product Engineer (Fullstack Software Engineer+AI) London, Old Street, Onsite, AI Agents, Skippr AI (direct, no agency please) ⭐ About the role We’re looking for a Product Engineer to join our small but high-calibre team in Old St . We’re a team that’s 100% AI-native ...

Founding Software Engineer x3 (Python, NodeJS, TypeScript, React) Salary up to £110k + Equity London - 1 Day a week Sponsorship available for UK based candidates We're looking for a Senior Software Engineer to join a founding engineering team and help scale a fast-growing platform serving … over-specified, this one's for you. You'll be shaping core systems, shipping production features end-to-end, and helping define the engineering culture as they grow. What You'll Be Doing Design, build, and deploy end-to-end features across frontend, backend, and infrastructure Build robust data ...

offices (on average once per week), and were happy to discuss flexibility to make this work for you. We are looking for a Lead Software Engineer who will be responsible for the design, development, and deployment of high-quality software solutions click apply for full job details ...

financial market, backed by top-tier investors (including Anthropic backers) and founders from MIT, Cambridge, Oxford. The role This is a greenfield platform engineering role with complete ownership over the core architecture. You'll design and build the systems powering real-time trading from the ground up, working directly ...

Stack Python (FastAPI), Postgres TypeScript, Next.js GCP, Kubernetes LLMs (OpenAI, Gemini), Speech-to-Text, Text-to-Speech Requirements 5–10 years of backend-leaning engineering experience. Strong Python experience. Some experience with LLMs or AI products. Early-stage startup experience strongly preferred. Having worked with customers is a plus. ...

Build performant, reliable APIs supporting semantic search, clustering, and protocol-support tools What we're looking for Around 5+ years of experience as a software engineer , working across back-end and front-end systems At least 3 years in a commercial environment Strong experience in either back-end engineering (Python, APIs, data models) or front-end engineering (modern JS frameworks, UX) with curiosity and willingness to work across both. Experience integrating APIs and building data-driven user interfaces Comfort with ambiguity, ownership, and working in a small, fast-moving team A few important notes ...

Senior Backend Software Engineer (Python) Blockchain/Web3 Remote £50-£80k An ambitious Web3 and blockchain-focused team working to create more equitable ownership and compensation models, particularly within gaming. They collaborate closely with leading Layer 1 protocols to deliver secure, scalable infrastructure and provide global economic opportunities through ...

Software Engineer, you’ll be translating innovative research into high-performance, high-quality GPU compute solutions—playing a key role in delivering next-generation media technology to the market. Hybrid working, 3 days onsite and 2 days working from home. Key Skills & Qualifications: Degree in Electronics Engineering, Computer … Windows, Linux, iOS, and Android. Enhance, maintain, and expand existing codebases (C/C++/Python). Integrate third-party commercial and open-source software components. Produce clear and well-structured technical documentation, including specifications, APIs, and integration guides. Support external partners and customers in integrating SDKs. Test ...

Senior Software Engineer - AI Infrastructure We’re working with a hyper growth company. They are building the GPU infrastructure to the best ai labs and the biggest enterprise companies. They are building the solution that allows researches to focus on their models, while utilising the phenomenal scale and reliability … world best ai cloud platform. The engineering team is small, ambitious, and deeply technical, building the orchestration systems that keep thousands of GPUs running at peak performance across global data centres. This role sits at the heart of it, designing and scaling the systems that make AI at exascale ...

Fullstack Software Engineer | AI Startup | NYC (Onsite/Hybrid) A seed-stage AI team is building smarter, developer-focused tools for OCR and document intelligence. They’re small, fast, and deeply technical — designing smooth inference workflows, clean parsing interfaces, and a platform that helps thousands of engineers build ...

Founding Software Engineer x3 (Python, NodeJS, TypeScript, React) Salary up to £110k + Equity London - 1 Day a week Sponsorship available for UK based candidates We're looking for a Senior Software Engineer to join a founding engineering team and help scale a fast-growing platform serving ...