76 to 100 of 201 Software Engineering Jobs in Central London

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 ...

Software Engineer London/Hybrid | Perm Role £80,000 - £100,000 Harrington Starr has partnered with a fast-growing fintech that’s transforming how businesses manage foreign exchange and treasury operations. Their technology enables clients to access institutional-grade execution, automate manual workflows, and gain greater transparency across their … product offering and deliver cutting-edge solutions that help clients manage risk more effectively. The Role This is an excellent opportunity for an experienced Software Engineer — ideally with a background in financial technology or FX — to join a high-performing engineering team within a scaling fintech. ...

Senior Site Reliability Engineer (AWS Python JS) - Lead Role - UK Location: London (Hybrid) Salary: £100k - £120k per year Do you have a software engineering background with a passion for infrastructure, and are you ready to take the lead in building a world-class Site Reliability Engineering function … significant, end-to-end improvements across the entire infrastructure lifecycle. Your responsibilities will include: • Improving Deployment Speed: Taking the lead on optimising and accelerating software delivery processes. •Pipeline Implementation: Designing and implementing robust deployment pipelines and comprehensive test suites. •Performance & Monitoring: Designing and building a state ...

Full Stack Software Engineer London (On-site) This is a hands-on software engineering role focused on building systems that directly run and optimise modern factories. The software is deployed into live production environments and is responsible for automation, real-time data, and operational decision-making. … world rather than purely digital products. What you’ll do: Build and own full-stack systems used in live factory operations Ship and iterate software directly in production environments Work closely with operators and leadership to remove operational bottlenecks Take features from concept through deployment with full ownership Nice ...

Strong understanding and proven experience in RESTful APIs and Webservices Confident communicator with the ability to explain technology to non-technical audiences Background in Software Engineering using C#, C++, Java would be a hugebonus ...

company aims to reduce financing costs and optimize return metrics. Who We're Seeking: We're on the lookout for a seasoned mid-level Software Engineer with up to 6+ years of hands-on Python experience. Familiarity with AWS Serverless and related technologies would be advantageous. Strengths in Pandas ...

platform and application issues. Assist in applying non-functional requirements (SLA/SLOs, resilience, backup and recovery) defined by senior engineers. Client-Facing Engineering & Stakeholder Support Join technical discovery sessions to help translate business needs into Foundry use cases. Prepare and demo prototypes, data flows and applications to technical … testing and design patterns and contribute improvements as you gain experience. Required Experience Commercial experience working with Palantir Foundry in an implementation, consulting or engineering role. Hands-on experience with: Building and maintaining Foundry pipelines and/or ontologies. Developing or supporting Foundry applications (Workshop, Code Repos, OSDK, Actions ...

SeniorSoftwareEngineer (.Net&Angular)-£70,000£85,000pa%Bonus+Benefits Iamworkingwithaleadingprofessional servicesclientinLondonthatarelookingforaSeniorSoftwareEngineerwithfullstackcapabilitiesto join a small but talented team. The team is responsible for maintaining and developing the organisations core platform click apply for full job details ...

will directly enhance the Ultralytics HUB platform and empower our global community of developers and researchers. 🛠️ Skills and Experience 5+ years of experience in software engineering, with a strong focus on AI and Machine Learning (ML). Expert-level proficiency in Python and deep learning frameworks, particularly PyTorch. … experience with the full RAG pipeline, including vector embeddings , rerankers , and data indexing in databases like MongoDB. Practical knowledge of LLM fine-tuning, prompt engineering, and performance optimization. Familiarity with MLOps principles and tools, including CI/CD with GitHub Actions . A strong interest in computer vision ...

Software Engineer/Developer (Golang AWS) London to £80k Are you a data savvy Software Engineer who enjoys using a range of programming languages with exposure across the full tech stack? You could be progressing your career working on bleeding edge, Machine Learning and AI powered, audio fraud … detection software used by all UK banks, the emergency services and a range of other clients to prevent and detect fraudulent call activities. As a Software Engineer you'll join a collaborative Agile team responsible for building and maintaining the critical, cloud (AWS) based data processing platform that ...

mission critical systems in collaboration with Product Managers to understand and define new features and coordinating with other developers with the goal of writing software as one. You'll be supported to learn and develop your skills by the senior engineer. Location/WFH: You'll join a small … code Ideally you will have experience of working on Greenfield systems and creating front end web applications from scratch You're familiar with modern software engineering practices You are collaborative and motivated to learn about financial markets and advance your technical knowledge What ...

scratch, working primarily with Python and AWS. This is a true 01 initiative, where the Data Engineer will help define architecture, data standards, and engineering best practices within a growing data function. This role is ideal for a Data Engineer who enjoys early-stage build work, close stakeholder collaboration …/CD practices and infrastructure-as-code for data platforms Data Engineer Requirements 3+ years experience working as a Data Engineer (or in a software engineering role with a strong data focus) Experience working with insurance, accounting, or financial data, including month-end or IBNR reporting Proven experience ...

Agentic Developer at governr, you'll build the core systems that monitor, analyse, and govern autonomous AI agents in production. This isn't traditional software engineering with well-worn patterns. You're designing architectures for problems that didn't exist 18 months ago. You'll be responsible … risk management and financial regulation. Early team of sharp, mission-driven builders. Learning Curve : You'll gain expertise in cutting-edge AI architectures, enterprise software, regulatory frameworks, and category creation simultaneously. This is one of those roles you look back on as career-defining. Impact Leverage : Every system ...

Senior C# Developer/Backend Software Engineer (C# .Net) London onsite to £150k Are you an experienced backend focussed C# Developer? You could be progressing your career in a senior, hands-on role at a global Sports Trading business, earning substantial bonuses. As a Senior C# Developer within ...

Software Engineer Onsite role in Soho £80-120k depending on experience We’re on a mission to reinvent how AI understands people — not through CVs or data points, but through story, reasoning, and curiosity. We’re building systems that listen, interpret, and understand why people say what they ...

seeking an academically exceptional Quantitative Developer to be part of their London build-out. This is a unique opportunity to apply cutting-edge engineering and quantitative skills in a highly collaborative environment. You'll work on delivering market data to trading systems, building integrated research and execution frameworks … into production-quality code that drives real-world impact. Responsibilities: Design, develop, and maintain core components of the trading system Champion best practices in software engineering across the team Build robust testing frameworks for all trading components Develop automated, fault-tolerant monitoring and tracking systems Collaborate with researchers ...

Senior Software Engineer Key Technologies: C#, .NET, React, JavaScript, Typescript, AWS, Docker City of London, United Kingdom Perm Role: £80,000 - £120,000 Harrington Starr has partnered with a Global Financial Services Vendor and they are looking for a Senior C#, .NET Software Engineer to join their growing … UK. This role offers hybrid working, with an office location based in the City of London. This role will suit a Senior Software Engineer, with expert C#, .NET experience having a direct impact from the get-go. ...

Senior Software Engineer Location: London - Hybrid (Occasional Travel required) Salary: £75,000 - £95,000 An established, global technology business within the hospitality-tech industry is seeking a talented Backend Software Engineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield … doing? Design, develop, test, and maintain high-performance backend systems supporting real-time hospitality operations. Take ownership of key features throughout the software development lifecycle - from technical design through to deployment and ongoing optimisation. Collaborate with cross-functional teams including product, design, and data science to deliver innovative, customer ...

Principal Software Engineer - Backend Location: Remote first (Occasional travel to London) Salary: £95,000 - £120,000 + equity + 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. … What will I be doing? Lead the technical vision and architectural direction across complex backend systems, ensuring scalability, reliability, and performance. Partner closely with engineering leadership to define best practices, coding standards, and long-term technical strategy. Design, develop, and oversee the delivery of robust, production-grade software ...

key. There is strong end-to-end ownership and clear visibility across the full trading stack. They are looking for someone with a solid software engineering background and several years of experience (typically around 3–7). Experience with trading systems or DeFi is beneficial but not required. … Familiarity with ecosystems such as Solana, Sui, or Cosmos Experience diagnosing performance, latency, or throughput issues Interest in product design and user experience alongside engineering ...

Engineer – Rapidly Growing AI Company I'm partnered with a fast-growing AI company that is scaling its engineering team and looking for AI Engineers who want to build next-generation intelligent systems used by major enterprises across the world. This is an outstanding opportunity for someone who loves … with product teams to iterate quickly and deliver meaningful outcomes What They’re Looking For We’re speaking to engineers who have: Essential Strong software engineering fundamentals (SDLC, testing, modern frameworks) Hands-on experience taking code from dev → production in cloud environments Interest or experience in agentic systems ...

Joining our team you will be jointly responsible for the design, development, and maintenance of secure, scalable software systems powering both internal and external products and services related to AgeChecked frontend, AgeChecked for Ecommerce, AgeAware and other special projects. You will work across the stack, building robust back ...

unparalleled scale, reliability, and resilience. This is where you come in... They are looking for an exceptional C++ Engineer to join their most critical engineering group across the whole firm. This elite team of engineers is responsible for developing all of their on-exchange proprietary trading technology—the single … kind of engineer who knows what’s going on under the hood and thrives on working at the lowest levels of software engineering—borderline hardware. Your expertise includes some blend of modern C/C++ with the following: Operating systems (Linux Kernels) CPU architecture GPU programming Assembly Language ...

Senior Python software engineer - with strong Maths background Are you a software engineer who thrives on building robust, scalable products with a strong foundation in mathematics and analytics? We’re specifically looking for an engineer—not a data scientist—to join ScanmarQED as a Senior Python Software … solve complex optimization and modeling challenges. You’ll collaborate with an international team, take ownership of product modules, and help drive innovation in our software architecture. Flexible work options are available in the UK, the Netherlands, or remotely. What will you be doing? Design, develop, and maintain robust well ...

APIs using Rust Lead end-to-end architecture and implementation across services Ensure interoperability, performance, and security across the stack Requirements 5+ years of software engineering experience 3+ year using Rust as your primary language Strong understanding of the Solana blockchain and DeFi ecosystems Benefits Competitive compensation package ...