2,101 to 2,125 of 2,757 Software Engineering Jobs in London

security, performance, and developer usability. Develop resilient APIs and backend services that enable secure authentication, authorisation, and identity management capabilities across the organisation. Champion engineering excellence through clean, maintainable, and well-tested code, helping establish best practices across teams. Actively participate in code reviews, technical discussions, pair programming … knowledge-sharing initiatives. Requirements A senior software engineer with significant experience building and operating large-scale distributed systems serving millions of users. Strong experience with Java and/or Kotlin and modern backend development frameworks. in designing and delivering secure, scalable services within cloud-native environments. Strong understanding ...

back‐end services and APIs using Java and Spring Boot. Design scalable systems and well‐defined service interfaces, demonstrating a strong understanding of modern software architecture and testing practices. Write clean, high‐quality code that is easy to test, maintain, and extend across both front‐end and back … through to service‐layer logic, data handling, and page rendering. Use AI tools and practices to enhance product features, improve code quality, and optimise engineering workflows. Build high‐performance, reliable and scalable solutions on AWS or similar public cloud infrastructure. Any experience building modern mobile‐first web applications ...

critical systems from concept to production, balancing performance, reliability and business impact. You will work in a high‐velocity environment, collaborating with product and engineering teams across regions, and you will apply the best tools for the job—from C#/.NET Core and Python to Kubernetes and React ...

Ripple is building a modern SaaS treasury platform and is seeking a Senior Software Developer to join the Liquidity Management team. You will help design and deliver scalable cloud-native solutions using Azure, .NET/C#, and Microsoft SQL Server, while mentoring peers and driving best practices. You will ...

working with a forward-thinking technology company looking to hire a Graduate/Junior Software Engineer to join their growing team. This is a fantastic opportunity for someone early in their career to gain hands-on experience across a modern infrastructure stack, working on systems that are scalable, secure ...

raised capital from some of the world’s best investors: Sequoia Capital, Founders Fund, Brevan Howard Digital, Y Combinator, and Kaszek Ventures. Senior Software Engineer (Java) Location London Employment Type Full time Location Type Hybrid Department About ARQ ARQ is one of the fastest‐growing fintechs in the world. … money. What you'll be doing The work will focus on greenfield development and improvement of existing systems Projects will include building REST APIs, engineering microservices and evolving a number of systems that our business depends on (e.g. card payments, treasury management, transactions booking, crypto liquidity) Our technology stack ...

involves managing the entire systems development process and collaborating with Finance stakeholders. Ideal candidates have a Bachelor’s degree and over six years of software development experience, particularly in Java or Python. Strong knowledge of cloud technologies is essential. Join us in making an impact within financial reporting. #J ...

means to balance craft, ownership, and speed Familiarity with tools that power today\'s AI agents: eval frameworks, agent tooling, RAG pipelines, and prompt engineering Prior experience with React, TypeScript, and/or Go Previous roles where you interfaced with customers or led technical projects with external stakeholders ...

means to balance craft, ownership, and speed Familiarity with tools that power today’s AI agents: eval frameworks, agent tooling, RAG pipelines, and prompt engineering Prior experience with React, TypeScript, and/or Go Previous roles where you interfaced with customers or led technical projects with external stakeholders ...

systems, identifying opportunities to improve relevance, consistency, and customer outcomes. Integrate AI services into broader digital platforms, APIs, and recommendation ecosystems. Requirements A strong software engineer with extensive Python experience delivering production-grade applications and services. Knowledge in building AI-enabled products, particularly recommendation systems, conversational AI, or customer … systems. Comfortable working with probabilistic, non-deterministic systems and using data to drive continuous improvement. Strong understanding of how AI systems differ from traditional software and how to measure success within those environments. Comfortable taking ambiguous AI challenges and translating them into practical, scalable solutions. Core Competencies Demonstrates expertise ...

means to balance craft, ownership, and speed Familiarity with tools that power today's AI agents: eval frameworks, agent tooling, RAG pipelines, and prompt engineering Prior experience with React, TypeScript, and/or Go Previous roles where you interfaced with customers or led technical projects with external stakeholders ...

Qualifications Strong Java Scripting Trading exposure Docker Desirable Skills Experience with Docker and containerised environments Understanding of distributed systems and scalable architectures Experience with software testing and quality assurance practices Exposure to Rust and/or WebAssembly development Contributions to open-source projects or communities Interest in financial markets ...

seek people who think in code and are motivated by being around like-minded people. The Role: Our group is responsible for building software enabling both the large‐scale quantitative research operations that drive WorldQuant’s platform and the production of our portfolio. The team is currently embarking ...

willingness to learn, grow, and tackle new challenges as part of a distributed and collaborative team is essential. What You’ll Do As a Software Engineer, you’ll play a key role in delivering impactful features that enhance how users interact with the company Aura graph analytics. ...

Flow Traders is looking for Senior C++ Software Engineers to join our growing team in Amsterdam. Software Engineers at Flow Traders provide us with our competitive edge, equipping Researchers and Traders with the information and capabilities that they need to make sound business decisions. C++ plays a critical … focus group engineers, Quants and Technical traders to refine requirements, collect feedback, and iterate on design and implementation of platform requirements Exchange Connectivity Write software that communicates with exchanges through their APIs, receiving market data and sending orders over the network in different protocols, such as FIX, Websocket ...

Flow Traders is looking for Senior C++ Software Engineers to join our growing team in Amsterdam. Software Engineers at Flow Traders provide us with our competitive edge, equipping Researchers and Traders with the information and capabilities that they need to make sound business decisions. C++ plays a critical … focus group engineers, Quants and Technical traders to refine requirements, collect feedback, and iterate on design and implementation of platform requirements Exchange Connectivity Write software that communicates with exchanges through their APIs, receiving market data and sending orders over the network in different protocols, such as FIX, Websocket ...

Senior Software Engineer, Block Production - Anza Who We Are Anza is a Solana R&D lab pushing the boundaries of blockchain performance and scalability. Anza was founded by experienced executives and core engineers solving the toughest problems in Web3. Crypto ecosystems rely on robust protocols, and we believe those … built out in the open, with multiple contributors. We pioneer advanced solutions to meet the evolving demands of decentralized applications. The Role As a Software Engineer specializing in block production, scheduling, and verification, you will play a critical role in fortifying Anza's Agave client and the broader Solana ...

Role : Rust Software Engineer – Distributed Systems Client : Scientific Quant Fund Compensation : Up to £225,000 Base + Bonus Location : London (Hybrid) Overview A scientific quant fund is seeking a high-performance Rust Software Engineer to join a core technology team building highly available, distributed systems that underpin real … time trading and data platforms. This is a greenfield, engineering‐led environment where system reliability, throughput, and latency are critical to trading performance. The firm operates a technology‐first culture, with a strong focus on correctness, performance, and scalable system design. The Role As a Rust Software Engineer ...

About The Role HomeServe Finance is hiring: Senior Software Engineer - Backend London (Hybrid) | Up to £85,000 + 15% Bonus + £7,000 Car Allowance + 6% Matched Pension At HomeServe Finance, we're using technology and consumer finance to help homeowners improve the energy efficiency of their homes. … developing the products, platforms and lending technology that will help make homes across Europe more sustainable. We're looking for a talented Senior Software Engineer - Backend to join our growing technology team and help build scalable, resilient systems that power the entire lending lifecycle, from credit applications and decisioning ...

encourage diversity and are an international team coming from 26 different countries and speaking 25 different languages. About the Role As a hands-on Engineering Manager of one of our feature teams at Ledgy, you\'ll lead the engineers who build the features that help companies offer, manage … structures, while you stay close enough to the work to help the team make strong technical and product decisions. You’ll combine hands-on engineering leadership with thoughtful team development. The role is about staying close enough to the work to guide decisions, while creating the conditions for engineers ...

role in developing scalable data pipelines, improving data quality, and helping shape the company's growing data function. Working closely with Product, Engineering, Analytics and Data Science teams, you'll ensure data is reliable, accessible and ready to power business decisions. This is an excellent opportunity to join … collaborative engineering team where you'll have genuine ownership, influence over technical decisions, and exposure to a modern cloud data stack. Key Responsibilities Design, build and maintain scalable ETL/ELT data pipelines across multiple data sources Develop and optimise cloud-based data platforms to support analytics and operational ...

entirely new network for the world's money. For everyone, everywhere. Job Description About the role: We are looking for a talented Senior Software Engineer to join our Payin Platform team in the London office. This team owns a layer that powers how money enters Wise. The platform sits … work – a practical guide DEI @ Wise Wise Tech Stack (2025 update) See what it's like to work at Wise London! Our Engineering career map Wise Engineering – wisdom.medium.com What do we offer: Starting salary: 111K – 145K GBP + RSUs Wise Benefits For everyone, everywhere. We're people building ...

regulatory requirements, hardware, firmware, and sensor data. Strong judgment navigating evolving tooling landscapes and applying the right solutions to real-world problems. About the Engineering Team Distributed and Hybrid We have nearly 160 full-time engineers working across our hubs in Stockholm, London, and Berlin, spanning disciplines including Hardware … Engineering, Firmware Development, Electrical Design, Algorithm Development, Machine Learning, Optronics Research, and Frontend Development. We don't expect you to join us with specific tech knowledge, but we do expect you to work with our tools: React, TypeScript, C++, and Python. Our APIs are written in C# with ASP.NET ...

capital providers and quota share partners make us nimble. Our breadth of expertise and capabilities deliver outstanding market returns. The role The Analytics Product Engineering team at The Fidelis Partnership (TFP) builds and manages a bespoke analytical platform that powers our partnership-driven business model. We combine actuarial expertise … with advanced technology to deliver innovative, scalable solutions. The Platform Engineer partners with the Analytics product engineering team to design, build and operate platform capabilities that enable our market leading high-performance, distributed computing products to run reliably, securely and efficiently at scale. This includes infrastructure automation, runtime orchestration ...

Staff Software Engineer, Inference London, England CoreWeave is The Essential Cloud for AI. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior … hyperscalers. Infrastructure is our product, and we operate it at massive scale to power the most demanding workloads. About the role: As a Staff Software Engineer (IC5) on the Inference team, you will operate as a technical leader across multiple teams and services, driving architecture, performance, and reliability ...