76 to 100 of 141 Software Engineering Jobs in the City of London

React Design reliable, observable systems running in the cloud (AWS) Champion CI/CD, automated testing, and zero-downtime deployments Mentor engineers and raise engineering standards Experiment with emerging tech like AI, computer vision, and advanced analytics What we’re looking for 5+ years building SaaS or enterprise software ...

values-driven culture , this could be your next move. Current Opportunities Senior/Principal Consultants Product Desk (2) Consultants up to Team Lead Software Engineering (3) Leader SAP (1) Senior/Principal Business Change (1) Principal Consultants ERP (2) Senior Consultants AI (2) Why Join Them Earnings ...

Title: Senior Software Engineer Salary/Package: £80k-£100k + Equity Company Sector: Fintech (SaaS) Tech: TypeScript, Node, React, Next, GraphQL, AWS Location: Central London (London Bridge/Bank) WFH/Hybrid: 2-3 days in office (Bank) I’m hiring a full-stack Software Engineer … offs Refining architecture as the platform scales (multi-tenant + AI-heavy) Shipping to production fast and often Experimenting with AI tools to accelerate engineering Why This Team? You’ll build complex, high-value product used by serious customers Join a small, elite group that genuinely cares about craft ...

Backend Developer/Software Engineer (TypeScript Node.js) London/WFH to £100k Are you a senior technologist looking for an opportunity to progress your career in a hands-on role where you can make an impact? You could be joining a scaling tech company that has developed a digital … with exposure to and occasional frontend work. You'll help to ensure best practices are maintained and participate in code reviews to maintain sound engineering practices and share knowledge with the team. Location/WFH: There's a remote first policy, with the caveat that you'll meet ...

client is looking for an experienced Senior C++ Software Engineer to help grow and enhance our PTP software platform. The candidate will work on strategic enhancements to the platform as well as on client implementation projects. The PTP Platform is a leading-edge, cloud-based Securities Processing solution … that provides trade lifecycle processing for a wide range of global financial institutions. What you will need: · Extensive commercial software development experience using C++ · SQL experience · Unix/Linux experience · Relevant degree in a numeric discipline, or equivalent work experience · Excellent written and spoken English Added bonus ...

Software Engineer/Developer - 12 Month Fixed Term Contract 1-2 days per week in London (Stratford) office £45-60k My leading client requires an experienced Developer to join their Development Department working across a range of integration projects Core requirements centre around integration and APIs … Azure - Logic Apps/Function Apps - DevOps - CI/CD pipelines for deployment - SQLServer - HTML/CSS/JavaScript - Test Driven Development - Agile Software Engineer/Developer - 12 Month Fixed Term Contract 1-2 days per week in London (Stratford) office £45-60k In accordance with the Employment ...

Senior C++ Software Developer, Python - Financial/Banking Candidates will have 5+ years C++ experience (ideally more) and excellent knowledge of Python - ideally coming from a Financial/Banking background with knowledge of Equities, Futures & Options and Fixed Income and Exchange Connectivity, FIX Protocol and some Low Latency experience. … work with the Product, Infrastructure and QA teams, 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. To be successful in this ...

Senior Software Engineer Full Stack - Ruby on Rails, React Up to £120k DOE Fully Remote - must be UK based A fast-growing sports tech company building high-performance, data-driven products for a rapidly expanding global audience is searching for a Senior Full Stack Engineer . This … still remaining hands-on in the codebase. As a technical leader within a cross-functional Product Team, you’ll influence the long-term engineering strategy, guide architectural decisions, and ensure the platform scales reliably as our user base grows. You’ll act as a role model for engineering ...

Backend Software Engineer/Developer (C# .Net) London onsite to £90k Are you an experienced C#, backend focussed Software Engineer? You could be progressing your career in a hands-on, backend focussed Software Engineer role at a global sports trading firm, earning substantial bonuses. What … personal performance (10-25%) Professional development Pension Health Insurance Gym membership Social events, free fruit, snacks, coffee etc. Your role: As a Backend Software Engineer within the trading engine team you'll collaborate to design and develop real-time trading systems, you'll often be collaborating with the strategy ...

Lead C++ Software Engineer/Developer (Windows C/C++, C#) London to £115k FTC Are you a skilled C++ Software Engineer with technical/team leadership skills looking for a new opportunity? You could be progressing your career in a senior, hands-on role at a global … market data provider. As a Lead C++ Software Engineer you will head-up an Agile team (5 engineers) focussed on building and maintaining Exchange Connectivity software systems that require real-time and low latency, maintaining data feeds and developing key underlying transport protocols for data transmission. The platform ...

Senior Software Engineer (Full-stack) - Permanent | On-Site | London Join a rapidly scaling US-backed startup at a pivotal moment. With significant funding secured and strong momentum, they are establishing their UK presence and offering exceptional equity opportunities for early team members. As a Senior Software Engineer ...

Senior Software Engineer London – 1 day a week onsite Are you a highly experienced individual contributor looking for a step up into a senior position in a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your … enable real-time, secure transactions across the globe. What You’ll Be Doing You’ll be the focal point of a high-performing engineering team building asynchronous, event-driven systems using modern Java technologies, whilst working closely with some of the largest banks across Europe. Design and build scalable ...

Location: London Employment Type: Full-time Department: Engineering – Hardware About the Company Timebeat is a leader in high-precision clock synchronisation technology, delivering enterprise-grade timing solutions for financial services, telecommunications, aerospace, defence, and critical infrastructure. Our products enable nanosecond-level accuracy, reliability, and visibility across distributed systems. … expanding our hardware engineering team to continue advancing our timing platforms and next-generation synchronisation devices. Role Overview We are seeking a Hardware Design Engineer with experience in PCB design using Altium Designer . In this role, you will design, develop, test, and iterate hardware solutions for high-precision ...

full-time role, 40 hours per week. If this role feels right, send us your CV. Accountabilities: Playing a pivotal role in the backend engineering team, you will help to build full-stack cloud apps. You'll be using Python and AWS Cloud services on the backend. Adopt … datasets. Foster close collaboration with our Product, Data, Front-end, Platform, and Security teams. Knowledge and Skills: Demonstrated expertise as a Mid or Senior Software Engineer. Proficiency in Python as your primary language, or willingness to adapt. Hands-on experience with RESTful APIs and/or GraphQL. Proficiency ...

Role: Senior Software Engineer/COBOL Developers/Engineers Work Location: London, Glasgow or Newcastle (Office based) Duration: 6 Months+ Our banking client is currently seeking a Senior Software Engineer/COBOL Developers with hands-on expertise in FIS Systematics to join a dynamic team. In this role … banking system migrations or upgrades. Familiarity with Agile methodologies. Experience working with global teams. Essential Experience: Client facing, Very Good Communicator Good coding and software development experience Committed to highest quality standards and delivery excellence Natural Leader ...

Senior Software Engineer – 3D Graphics/Computer Vision London preferred | Full-time | Visa sponsorship available The mission Work at a stealthy 3D/graphics startup that turns real‐world objects into production‐ready, photoreal assets for film, games and real‐time experiences. Think: high‐end material capture and photogrammetry … models and formats into production workflows. Take responsibility for Windows builds, packaging and release quality. What you bring 5+ years of modern C++ engineering in graphics, rendering or other high‐performance areas. Strong Python, used for real production tooling rather than scripts on the side. Solid 3D fundamentals: OpenGL ...

seeking a C++ Engineer to join their equities data team , helping scale the next generation of data-processing systems within a collaborative engineering leadership team. This role ideal for someone who thrives on solving deep engineering challenges in C++. The Role Development for the firm’s equities data … orchestration, data tooling, and process automation. Experience with large-scale financial or market data , particularly equities or other exchange-traded products. Familiarity with modern engineering practices — CI/CD, source control, automated testing, and containerised deployment. Excellent communication, organisational, and problem-solving skills. Contact: For further details ...

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 ...

Senior Software Engineer Node.js/AWS/React London (Hybrid, 3 days onsite) Are you the kind of Senior Software Engineer who enjoys taking something fast-and-scrappy and turning it into something scalable, elegant, and genuinely robust? This is a chance for a Senior Software Engineer ...

Senior Software Engineer/OutsideIR35 Contract/Java/AI/LLM Title: Senior Software Engineer (Java/AI/LLM) Contract: 6months OutsideIR35 Location: London (hybrid) Pay: £(Apply online only)p/d Looking for senior software developer, to join a 6month contract with our client … established brand in the financial services sector. You would be joining a small team pioneering AI in their services. Senior Software Engineer/OutsideIR35 Contract/Java/AI/LLM Responsibilities Develop and maintain software applications using Java. Implement AI solutions to enhance software functionality. Collaborate ...

C++ Developer/Backend Software Engineer (Windows C/C++, C#) London to £70k FTC Are you a skilled C++ Developer? You could be progressing your career in a senior, hands-on role at a global market data provider whilst enjoying a range of perks and benefits. … C++ Developer you will join an Agile team focussed on building and maintaining Exchange Connectivity software systems that require real-time and low latency, maintaining data feeds and developing key underlying transport protocols for data transmission. The platform has been built with C++ and C# deploying ...

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 ...