176 to 200 of 201 Software Engineering Jobs in the City of London

scaling quickly and continuing to expand the product platform — both in terms of scale and functionality . As a result, they’re growing the engineering team and looking for a Lead Python Engineer to take ownership of a core part of the platform. The Role This is a hands … backend services in Python Designing systems that process financial data and investment workflows Leading architecture and technical design for new features Running a small engineering pod and guiding delivery Improving reliability, performance and resilience of core systems Mentoring engineers and raising engineering standards across the team What ...

Senior Software Engineer - London Harrington Starr are working alongside a unique financial trading technology firm who are seeking 10+ Senior Java Developers to join their Core Development team and build out low latency systems. You absolutely have to have is a demonstrable interest in technology, precision, and technical excellence. ...

Java Software Engineer We’re partnering with a leading global bank in London to hire experienced Java Developers to join a high-performing team building and enhancing mission-critical electronic trading platforms. This is an exciting opportunity to work directly on front-office trading systems, developing low-latency, high ...

throughput Java systems Optimise performance across latency, concurrency, and memory Contribute to mission-critical trading platforms (OMS/EMS, market data) Work closely with engineering and business stakeholders in a live trading environment What They’re Looking For Strong Java experience (6+ years) Background in low-latency/high … similar messaging protocols Why Join Work on real-time trading infrastructure Solve complex performance challenges at scale High-impact role in a fast-paced engineering environment This is a role for engineers who understand production trading systems — not just code. You will have real input into new technology ...

This is a hands‐on, senior‐level role for someone with a strong background across architecture, delivery, and build , who has worked closely with software engineers in small, high‐ownership teams . You’ll have real influence over how the platform is designed and evolved, not just … networking, and application layers Improving reliability, visibility, and operational standards across a distributed system Setting and enforcing best practices across infrastructure, delivery, and platform engineering What we’re looking for Strong experience in cloud infrastructure/platform engineering Deep Kubernetes experience in production environments (EKS, Helm, ingress, scaling ...

Principal Scientific Software Engineer – Quantum Error Correction Location: Major US Tech Hub (Relocation Supported) Ready to help build the future of computing? Curious about shaping technology that could redefine science itself? Looking for a role where your work doesn’t just scale systems—but changes what’s possible … forefront of next-generation computing, working on breakthroughs that could transform industries from pharmaceuticals to climate modelling. They are now seeking a Principal Scientific Software Engineer to lead the evolution of a cutting-edge quantum error correction (QEC) software stack —a critical step toward making quantum computing truly ...

Senior Software Engineer - Rust (Any Backend Language Accepted) Fastest Growing Start-up in the UK Defense Senior Software Engineer Rust We are partnered with one of the UK's fastest-growing start-ups. They are a very technically focused group building cutting-edge decision-making technology. The company ...

Barrington James’s specialist Software & Electronics Division is currently searching for a Software Engineer on a full time permanent basis in West London, England. (This opportunity is hybrid with 3 days a week on site required) To be considered for this position: Essential : Hardware Integration, Python (NumPy, SciPy … Pandas, Matplotlib, Sklearn, PyTorch), Desirable : GUI (Tkinter, PySide), C++, Life Science experience (Optics, Lenses etc.) Responsibilities/Requirements • Develop and maintain Python-based software for scientific data processing, modelling, and analysis. • Design and build user-friendly interfaces and tools to support research and operational workflows. • Integrate software with ...

transforming how ecommerce brands support and engage with their customers through intelligent AI Agents. They’re now looking to hire a Senior Scala Software Engineer with strong Scala experience to help scale a high-performance backend platform powering some of the world’s leading retail brands. This … backend-focused engineering role, working across distributed systems, microservices architecture, and API integrations within a modern functional Scala environment. You’ll join a highly technical product engineering team building scalable systems that sit at the core of a rapidly growing AI product used internationally across ecommerce and customer ...

have a new and exclusive partnership with one of the most exciting scale-ups in Europe, who are looking to double in size their engineering team. They have a valuation exceeding 2 billion Euros. The company builds aerial intelligence hardware and software. They're main focus is the manufacturing … s. Alongside this, they are also developing bleeding edge software that provides actionable insights in defense, security and professional services. The Rust Team: The company are building a new Rust Engineering pod in the UK, and are hiring several Rust Engineers and a Team Lead. This engineering ...

Junior Software Engineer Salary: £40,000-£50,000 Location: 3 days p/week in London Junior Software Engineer - would you like the opportunity to work for an early stage start-up currently looking for several Software Engineers (0-2 years experience)? You’ll be joining their … house product and platform team, where you’ll work alongside and learn from highly experienced software developers and product managers. As a Junior Software Engineer, you will get a lot of responsibility and work in an award-winning team, getting the opportunity to work on a wide variety ...

Goldman Sachs Group, Inc. is seeking a Vice President Software Engineer based in London to join its Global Banking & Markets division. This role involves designing and implementing a cloud-native platform for Equities Trading, driving strategic transformation through AI tools, and developing high-availability services. The ideal candidate … over 8 years of software development experience, particularly in Java, and a proven track record in developing event-driven architectures. Competitive benefits and a commitment to diversity and inclusion are part of the offering. #J-18808-Ljbffr ...

years, and already have a lot of customers in the UK. On-site | London Up to 150,000 + Equity Senior/Principal Software Engineers: They're looking to add Senior/Principal Engineers to their team. The team are open to hiring pure backend engineers, or full-stack ...

such as Go & Rust). Along with creating solutions for platform connectivity and monitoring systems. Flat structure, allowing for collaboration with traders, researchers, and software engineers within the small group, as well as elsewhere within the larger organization. Where? This firm has 10 worldwide offices, including one in London. ...

partnering with a fast growing technology driven organisation based in central London that operates in a highly analytical and engineering led environment. They are looking to hire a Technical Project Manager to support delivery across multiple complex systems and development initiatives. This is a hands on role working closely … with software engineers and technical stakeholders, owning delivery plans, managing priorities, and ensuring projects are executed efficiently in a fast paced setting. The role will include: Managing multiple technical projects end to end across software and data platforms Building and maintaining delivery roadmaps while adapting to changing priorities ...

ourselves. Our focus is understanding the brain, protecting it from neurological disease, and ultimately enhancing it in health. We’re hiring a Senior Software Engineer to help build the backend and cloud systems that bring these models into real-world use. Salary: £75,000 to £85,000 The role … roughly: 70% backend engineering 25% cloud and infrastructure 5% frontend You will work on systems that support large-scale biological datasets, experiment and model lineage tracking, and reproducible research workflows, while ensuring strong performance, reliability, and observability in production. Key areas include: Designing and building APIs for datasets, experiments ...

Machine Learning Engineer to help design and deploy models that make sense of high-dimensional biological data. The successful candidate will work alongside bioinformaticians, software engineers, and lab scientists to build scalable ML systems that directly influence the discovery pipeline. This is a hands-on role with ownership - from … design of their ML infrastructure and tooling stack What They’re Looking For 4+ years experience in machine learning, data science, or AI engineering Strong Python skills (NumPy, Pandas, PyTorch/TensorFlow) Experience working with biological or biomedical data (industry or academia) Solid understanding of ML fundamentals (supervised/ ...

Full Stack Software Engineer (Data-Focused) Location: London - Hybrid - 1-2 days per week Salary: £100-130k + Bonus Type: Permanent Sponsorship: Not Available Role Overview: We are seeking a Senior or Staff-Level Fullstack Software Engineer with a strong background in data to join our Data … Science & Engineering team click apply for full job details ...

exciting opportunity for a Java Software Engineer has arisen with a leading semiconductor company specialising in high-performance mixed-signal processing, based in London. This is an exciting opportunity for a Java Software Engineer to design and evolve cross-platform applications, SDKs, and developer tooling. You’ll work … closely with UX specialists, hardware teams, and software engineers to build polished internal tools that power advanced hardware configuration and tuning workflows. You will commit to a hybrid working model, with a minimum of one day per week onsite in the London office. Experience for the Java Software ...

Systems Engineer | Rust 📍 London/Hybrid 💰 £140k – £200k + Performance Bonus + Equity This client is building high-performance infrastructure powering decentralised markets. The engineering environment is extremely lean, operating in domains where execution speed, system reliability, and infrastructure quality are vital. Engineers are responsible for designing and building … maintainable systems design Why This Role Is Interesting • Opportunity to work professionally with Rust, even without prior commercial Rust experience • Highly technical, low-bureaucracy engineering culture • Significant ownership and autonomy • Strong base, bonus and equity upside ...

Level. Strongunderstandingofsoftwareengineeringfundamentals Passionforbuildingtechnologyandsolvingcomplexproblems ExperiencewithprogramminglanguagessuchasPython,Java,Go,orJavaScriptisaplus Strongproblem-solvingandcommunicationskills Whatsonoffer Salary starting at £70,000 Hybridworking( 3daysperweekintheLondonoffice ) Hugelearningandgrowthopportunities ChancetomakearealimpactinascalingSaaScompany Ifyou'rea topgraduatelookingtolaunchyourengineeringcareerinahigh-growthscaleup ,wedlovetohearfromyou. Software,Python,Graduate,Developer,Development ...

building a market data architecture for low latency trading. The systems are being developed from the ground up and we’re looking for exceptional software engineers to join us in creating scalable and performant tick data platforms to support HFT. Your future role within QRT Greenfield development … with C++ optimisation techniques Linux internals, kernel bypass and low-level profiling/tuning Communication and teamwork, with an interest in building a strong engineering culture Nice to have: System design and architecture Scripting in bash or python Project leadership and stakeholder management QRT is an equal opportunity employer. ...

meet client requirements. Work with project management to develop overall implementation solution plan. Collaborate with team members from multiple disciplines, including Designers, Data Scientists, Software Engineers, Clients and Business Stakeholders to help identify key areas for innovation, define and refine the challenge statement and propose solution hypotheses. Work with … value to Accenture and clients. Work with the ecosystem partner alliance to evaluate and co-create solutions and thought leadership. Support and guide digital engineering teams on target state architecture and continuous improvement. We are looking for experience in the following skills: Strong hands-on experience with salesforce. Strong ...

Software Engineer - Backend London (Occasional travel) Salary: Up to £85k + Benefits An established, global technology business within the hospitality-tech industry is seeking an accomplished Principal Software Engineer to lead the design and delivery of next-generation digital solutions click apply for full job details ...

client is a Start-Up and is looking to hire a Product Engineer working with Claude Code. This is their first Engineering hire and you will own the AI Agent chain for the Platform Build. This role can be done mostly remote with odd travel to Central London. Client … Details Our client is a Start-Up and is looking to hire a Product Engineer working with Claude Code. This is their first Engineering hire and you will own the AI Agent chain for the Platform Build. This role can be done mostly remote with odd travel to Central ...