51 to 75 of 187 Software Engineering Jobs in the City of London

data visualization, and UX for trading workflows. Optimize latency, throughput, and reliability across the stack; instrument observability (metrics, tracing, logging) and performance profiling. Establish engineering best practices: code standards, testing strategies (unit/integration/E2E), CI/CD, secure coding, and release management. Mentor engineers through code reviews … accelerates while maintaining human oversight. Collaborate with stakeholders to translate trading requirements into robust technical designs; write clear specs and implementation plans. Essential: Professional software engineering experience, with deep expertise in: Frontend: React, TypeScript, modern tooling (bundlers, linting, testing frameworks). Backend: Core Java, Spring Boot (or similar ...

deliver industry-leading digital solutions. Synechron’s progressive technologies and optimization strategies span end-to-end Artificial Intelligence, Consulting, Digital, Cloud & DevOps, Data, and Software Engineering, servicing an array of noteworthy financial services and technology firms. Through research and development initiatives in our FinLabs we develop solutions ...

deliver industry-leading digital solutions. Synechron’s progressive technologies and optimization strategies span end-to-end Artificial Intelligence, Consulting, Digital, Cloud & DevOps, Data, and Software Engineering, servicing an array of noteworthy financial services and technology firms. Through research and development initiatives in our FinLabs we develop solutions … about, Synechron has a global workforce of 16,500+, and has 60 offices in 20 countries within key global markets. We are looking for Engineering Tech Leads with strong expertise in Data Engineering, OpenShift Telemetry, Kafka, Splunk, and LLM‐based observability . This role will lead the design ...

observability across the platform Contribute to agent reasoning flows, memory layers, and workflow design Collaborate directly with founders, product, and customers Shape our engineering culture and long-term technical direction What You've Done 4+ years of professional software engineering experience Deep expertise in Python ...

multi-strategy hedge fund with a strong focus on systematic and quantitative trading. Founded by industry veterans, it combines deep financial expertise with advanced software engineering to manage institutional capital globally. What You’ll Do Design and build high impact internal systems using Java Own projects ...

client is leading the way in next-generation communications, building laser communication systems and software-defined networking platforms for aerospace and deep-space applications. With technology acquired from Google, theyre creating solutions that let satellites, aircraft, and even cislunar networks communicate seamlessly essentially bringing space and Earth … closer together. The Role Theyre looking for a Software Engineer (Delay-Tolerant Networking) to join their UK R&D team. Youll help evolve their delay-tolerant networking products, including the Hardy Bundle Router and Spacetime Platform, and develop new features that will transform how communication networks operate worldwide. This ...

fast-growing AI and technology consultancy on a mission to solve complex data challenges for governments and enterprises. Our work combines deep engineering expertise with bold thinking to deliver solutions that transform decision-making and operations across industries like defence, healthcare, and commercial sectors. Joining us means becoming part … team where AI meets engineering excellence. You’ll work on projects that genuinely change lives and industries, in a culture that values curiosity, collaboration, and innovation. The Role We’re seeking Full Stack Data Engineers across all levels—from Junior to Senior Manager—who want to apply their technical ...

Monday - Friday Contract Type : Freelance Associate Instructor AI, Decision Science and Advanced Analytics We are seeking experienced practitioners in Artificial Intelligence, Data Analytics and Software Development to deliver impactful, real-world training to professionals across sectors. About Us We empower individuals and organisations through advanced IT, AI and Leadership … customers develop and deploy AI-driven models and simulations to support decision making across areas such as: AI-driven decision support and data modelling Software engineering and system development Multi-criteria decision frameworks and analytical mythologies Design and delivery of real-world applied solutions You will bring real ...

Role: Senior Product Engineer (Fullstack) Salary/Package: £90k-£140k + Equity Options Company Sector: AI Start Up Experience Level: Senior (5+ years) Tech: JavaScript, TypeScript, Node.js, React.js, AWS Location: Central London Working Arrangement: 5 ...

part of a rota, and proactively chase ways to reduce/design out manual support overhead Required skillset: Bachelor's degree in Computer Science, Software Engineering or a STEM subject from a recognised university Minimum 2 years of solid working experience in an infrastructure, DevOps, or Platform engineer ...

quality viewing experiences on any device: from set-top boxes and Smart TVs to mobile phones and tablets. Using Witbox robots and the Witbe Software Suite, teams can replicate real user behavior on real devices to test, monitor, and analyze video app availability, quality and performance, all with actionable … scripting, and Workbench. Review and interpret past test executions to highlight insights and recommend improvements to video services. Profile A Bachelor's Degree in Software Engineering, Computer Science, Information Technology, Information Systems, Computer Engineering, or similar Rigorous, autonomous, “quality-oriented” Curiosity and taste for technology. You will ...

fast-growing AI and data consultancy in London. Working across junior to senior levels, this is a hands-on role where you'll combine software engineering, data expertise, and AI to solve complex problems for clients across government, defence, healthcare, and commercial sectors. What You'll Do: Design … tools that transform enterprise operations. Apply AI: Collaborate on AI and machine learning models applied to real-world challenges. Technical Excellence: Deliver scalable, reliable software solutions using Python, SQL, and TypeScript. Grow & Share: Mentor peers, support junior engineers, and contribute to best practices. Partner with Clients: Build strong, trusted ...

Technical Quantitative Developer/Software Engineer with deep Computer Science expertise applied to Python, its libraries and ecosystem as well as professional experience with SDLC tooling, Linux, Docker, and SQL sought to join a specialist London Headquartered Quantitative Hedge Fund. You will join as a more junior member … with SQL RDBMS, a Dockerised On-Prem RedHat Linux platform. Python is the primarily required skill, however solid professional profiency of building and shipping software in Linux/Docker environments as well as SDLC tooling such as GitLab CI/CD are also required. In return for your Computer ...

product already live with real users in healthcare? A high-growth, pre-seed AI startup in healthcare is hiring a Founding Senior Software AI Engineer to help scale its AI platform. The product is already live in sites across the UK. This is a true founding-level role … practices Work end-to-end: scoping, delivery, deployment and iteration Collaborate directly with founders on product and technical direction Requirements 3-5+ years software engineering experience in industry (Python) Strong AWS experience (production systems) Real exposure to AI/LLM systems in industry (not purely academic) Independent ...

Test Manager to lead and elevate quality across multiple delivery teams working on complex, global platforms. This role spans front-end and back-end engineering , with responsibility for driving QA governance, standards and consistency across UK-based and offshore teams. You'll operate across 3-4 delivery teams , influencing … best practices Leading and influencing multiple QA teams across geographies Driving test automation, integration, E2E and performance testing Improving efficiency and scalability through strong engineering-led QA Supporting and reviewing code where required Owning and improving CI/CD-integrated QA pipelines (e.g. GitLab) Working closely with front ...

drive to match our ambitions and initiative to realise your individual potential. Position Overview We are seeking a highly skilled and experienced Senior Software Engineer to join our development team. You bring extensive expertise in C# and Unity, with a strong ability to architect and implement efficient, maintainable systems. … data binding, UI and general systems and editor tooling that support our games and their features and functionality. You will collaborate closely with other engineering teams, design, production, QA, and other stakeholders in the studio to deliver high-quality user experiences on multiple platforms including desktop, console, and mobile. ...

Into You’ll work across a portfolio of high-demand, specialist technology markets, including: Digital & Technology Delivery Cyber & Information Security Data, AI & Advanced Analytics Software Engineering & Architecture Cloud & Platform Engineering Change & Business Transformation User-Centred Design & Digital Experience These are long-term, high-value programmes within large ...

Quantitative Developer – C#/Python London | Full-time The mission Join a leading quantitative research and trading firm using heavy compute and modern engineering to tackle some of the hardest problems in systematic finance. You’ll sit close to the money, turning cutting‐edge research into production systems that … scale in global markets. The role This is a hands‐on engineering role working side‐by‐side with quants. You’ll design, build and optimise trading, simulation and research systems in C# and Python, with huge emphasis on performance, reliability and clean architecture. What you’ll do Build ...

Senior Full Stack Developer We are looking for a high-caliber Senior Full Stack Developer (L5 equivalent) to join a specialized innovation 'incubator.' Our mission is to accelerate the AI transformation of global business operations ...

partnered with an AI startup backed by a significant fresh funding round looking to hire a full stack engineer to join a small, senior engineering team in London. You’ll be working on production systems that build sophisticated workflow automations for an existing client base of leading names … Async processing and worker based architectures Cloud infrastructure on Azure using managed services where appropriate About you Around 5 or more years of professional software engineering experience Comfortable working across the stack with strong backend fundamentals Experience building and operating production systems Solid understanding of APIs, databases ...

Technical Architect (OT Operational Technology) London/WFH to £150k 12 month FTC Do you have expertise with Operational Technology/Control Systems engineering? You could be joining a market leading software house that's remote access product is used by hundreds of millions of users worldwide. *Please … including system components, integrations and data flows required to deliver class leading performance and security. As well as collaborating and providing technical guidance to engineering teams you'll work alongside the product team to assess and construct a delivery plan and evaluate and select appropriate technologies, frameworks and platforms ...

cloud. You will work alongside key stakeholders from the business and technology, so strong communication skills are essential. You will champion continuous delivery in software engineering through use of Dev/Ops practices and your industry knowledge. Essential Criteria Experience of operating platforms in a controlled environment with ...

Senior Software Engineer Location: London (x3 days a week onsite) Salary: Up to £80k DOE Type: Perm Job Description We are looking for a passionate Senior Java Engineer in London to lead the design and development of core product features and services that power an app used by thousands ...

with trading, infrastructure, and product teams to deliver high-quality integrations. Monitor, debug, and continuously improve production systems. Mentor junior engineers and help shape engineering best practices. Participate in on-call rotations and occasional travel as needed. Ideal Candidate Profile 3-5+ years of professional software engineering ...

lifecycle management Ensuring compliance while designing and launching new PKI services and integrations Acting as the go-to SME and trusted advisor across engineering, security, and product teams What youll bring Proven PKI engineering experience at senior or lead level Deep expertise in cryptography and HSM technologies (e.g. … nShield, PKCS#11) Strong software engineering skills (Java and/or Python preferred) Confidence to lead technically, influence decisions, and set best practice Not a perfect match on paper? Apply anyway. If youre an ambitious PKI engineer ready to lead, innovate, and make your mark in a fast-moving ...