226 to 250 of 668 Senior Software Engineer Jobs in London

Kraken’s Humboldt team seeks a Senior Software Engineer to grow Asset Backed Trading across EU markets. You will build Python backend services in a serverless monorepo, ingest market data, develop optimisation problems, call solvers, and dispatch trades. You’ll partner with traders and data scientists ...

company is hiring a Senior Software Engineer II to join the OPX team within the Developer Experience organization. You will design and build automated reliability and self-healing systems at scale, delivering platform tooling that engineers across the company adopt for their services. You will own incident ...

CybSafe is seeking a senior software engineer to own product features end to end, from problem shaping to production. You'll work within a small autonomous squad alongside product, design, and science teams, guiding roadmap conversations in ambiguity. The ideal candidate has strong Python experience, relational database ...

United States Digital Space LLC is looking for a Senior Software Engineer to join the FX Routing and Aggregation team. In this role, you will be responsible for building and maintaining essential FX trading services that support clients globally. You will utilize a modern technology stack including ...

technology company focusing on media processing seeks a Senior Software Engineer in London. You'll engage in full-stack development, emphasizing infrastructure to scale systems for leading news organizations. This hybrid role allows you to impact critical engineering decisions and work with AWS, MongoDB, and more. Strong … experience in software production and a proactive mindset are essential. Interested candidates can email their CV to talent.engineering@trint.com. #J-18808-Ljbffr ...

Software Engineer (Golang) | High-frequency trading (HFT) We're also looking for Quantitative Modellers, ML Experts & Software Engineers. Were looking for experienced individual contributors (IC) to join a high impact HFT team, voted one of the best places to work (showcased by their high, longstanding, employee tenure … . Join a company with a decade of exposure alongside a huge emphasis on work life balance (very senior team with a lot of freedom and ownership). Essential Skills 4+ years programming exposure with Go/Golang or similar Understanding of AWS to build pipelines. Understanding of high ...

financial cartels of the past decade, contributing expert opinions, and advising global law firms, institutional investors and regulators. About this Role As a Senior Software Engineer, you will apply experienced hands‐on technical knowledge, vision and an innovative mindset to help us expand, build and maintain … data infrastructure and software libraries needed to support the quantitative research of our economists. You will have experience gathering requirements and contributing to sprint planning. We make use of kanban and sprint cycles to plan and stay on top of output. Our target stack relies heavily on Python, containerisation ...

Immersum is seeking a Senior Software Engineer to design, build and run new services in .NET on Azure, in a London hybrid team. You’ll own from first commit to production, making architectural decisions and owning reliability in a high-volume FX/payments platform. ...

TradingHub Group in London is seeking a Senior Software Engineer to join our Structured Data team and help drive the evolution of a platform that sits at the heart of TradingHub's products and services. This role is ideal for an engineer who enjoys working across ...

have the autonomy and support to make an impact as we build for the long term. About the role: the company is hiring a Senior Software Engineer II to join our Operational Excellence (OPX) team within the Developer Experience organization. DevEx is responsible for the engineering environment … with product engineering teams to strengthen their operational posture. You should apply if: You want to impact the industries that run our world: The software, firmware, and hardware you build will result in real-world impact - helping to keep the lights on, get food into grocery stores, and most ...

Runa, based in London, is seeking a Senior Software Engineer to architect, implement and deploy services from end to end. You will write clean, scalable code to build products used by thousands of customers. You will work with Python, TypeScript and JavaScript on a modern AWS serverless ...

Ctrl Alt is searching for a Senior Software Engineer to build the future of tokenization. You will design and maintain scalable solutions while collaborating with product teams. With over 5 years of experience expected, proficiency in TypeScript or JavaScript is essential. This position offers a dynamic ...

BigCommerce Pty is seeking a Senior Software Engineer in London, offering a hybrid work model. This role involves designing reliable services and APIs, working across backend systems, and tackling ambiguous problems effectively. The ideal candidate will have strong backend engineering experience, production debugging skills, and a solid ...

Perk is seeking a Senior Software Engineer to own features end‐to‐end, from understanding customer pains with product and design docs to coding, testing and deployment. You will influence the architectural direction and measurable impact on our global platform. You’ll work in small cross‐functional ...

NatWest Group is seeking a Senior Software Engineer to join a squad with high ownership and autonomy. You will build and maintain services used by engineering squads and help drive AI tooling adoption across the business. With no product owner or tech lead aligned to this squad ...

Ebury is seeking a Senior Software Engineer (Money Flows) in London. The role focuses on evolving our multi-currency account systems, payments processing, and infrastructure. You’ll own design, development, and scalability within a globally distributed team and work in a technology-agnostic environment. Join a high ...

connected platform and AI-native ecosystem for private capital. Built to replace fragmented tools with a single system of record, Carta brings together the software, services, and legal infrastructure that founders use to manage equity, fund managers use to run administration and reporting, and legal teams use to close … part of a lean, London-based team, you'll shape how legal, operations, and finance teams work together. The Problems You'll SolveAs a Senior Software Engineer II, you will lead technically complex projects and serve as a multiplier for your team. You'll work to: Drive ...

Navan has transformed the corporate travel, payment, and expense landscape by consistently prioritizing user needs. We are seeking a Senior Software Engineer (Backend) for our AI-first engineering team to drive the architecture of a next-generation corporate expense management platform. In this role, you will scale … dedication to excellence is why we’ve been recognized as a Best Place to Work by Built In (2023–2026), a G2 Best Global Software Company (2025–2026), Forbes Cloud 100 (2022–2025), and CNBC Disruptor 50 (2022–2025). At Navan, we provide an environment where top talent ...

Attest is seeking a Senior Software Engineer to join the Measure squad and help evolve our quantitative survey platform. You will work across frontend and backend, building scalable features and shaping direction while mentoring teammates. The role emphasizes AI-native development, real-time data, and robust visualisations ...

Navan has transformed the corporate travel, payment, and expense landscape by consistently prioritizing user needs. We are seeking a Senior Software Engineer (Backend) for our AI-first engineering team to drive the architecture of a next-generation corporate expense management platform. In this role, you will scale ...

Sculley and is headquartered in New York City with offices around the world. To learn more, go to www.the company.com. THE ROLE As a Senior Software Engineer on the LiveIntent Real-Time Ad Serving team, you will design, develop, and own the business logic that powers programmatic … integration Participate in architecture discussions and influence the technical roadmap Participate in on-call rotation to support production systems DESIRED CHARACTERISTICS 5+ years of software engineering experience in backend development Deep understanding of computer science fundamentals: data structures, algorithms, performance optimization Experience building and operating distributed systems in production ...

everything in between) —making memories that will last a lifetime has never been easier. About the RoleWe are looking for a product-focused Senior Software Engineer to join our Experiences Engineering team. This is a full-stack role, leveraging Java, SQL, React, AWS and AI tools. ...

Consortia Group in London (Hybrid) is seeking a Senior Software Engineer to drive hands-on development while shaping technical strategy. You will work on high-impact projects, collaborating across teams to ensure a scalable, high-performing platform. The role emphasizes cloud-native expertise, designing and building solutions ...

Story Terrace Inc. is seeking a mid-senior software engineer to join our innovative engineering team. You will work on the HelloSelf Companion, an AI-powered mental health product, improving its effectiveness and interactions. With a competitive salary range of £75-85k plus equity, the role ...

shared goal: to drive the global green energy revolution. Read our Spotlight series to meet some of the team. We're looking for a Senior Software Engineer to join as a founding member of our new AI team. You'll help Octopus move past ad-hoc, \"vibe … ground up. In this role you will help build our central developer tools and production gates, work directly with business teams such as Software Engineering, Operations, Services, and Finance to co-build live features and accelerate local teams. What you'll do Embed temporarily within cross-functional business teams ...