26 to 50 of 451 Software Engineering Jobs in London

Type: Permanent Location: London or Leeds (Hybrid working model) Are you ready to take the lead and make an impact? At Ten10, we empower businesses to deliver high-quality software faster and more effectively, and were looking for a talented Principal Technical Consultant to join our growing team. If youre an experienced leader with a passion for solving complex … challenges and mentoring others, this could be your perfect next step. Why Join Ten10? Were proud to be one of the UKs leading independent consultancies for Quality Engineering, Software Testing, RPA, and DevOps . Our mission is simple: help our clients achieve their goals by implementing innovative, high-quality engineering practices. Heres what makes us stand out … unique as your career aspirations. Flexibility: Our hybrid working model gives you the balance you need. The Role As a Principal Technical Consultant , youll bring your extensive knowledge of software engineering, automation, and performance testing to create bespoke solutions for our clients. Youll also take a leadership role, guiding your team to success and leading by example. What More ❯

for a passionate Senior Engineer who wants to join our growing team, helping us to transform and scale our payments platform. This role will involve ownership of the entire engineering lifecycle from concept to production and release, being involved primarily in backend development with contribution to the frontend as well. As a Senior team member you will have influence … continue to expand, we're building a team of exceptional people who share our ambition to transform the future of global payments. Key Responsibilities: Own the full lifecycle of software engineering, from initial design and development through deployment, monitoring, and maintenance in production. Collaborate with PMs, designers, and cross-functional teams to shape and refine feature requirements, ensuring … resolve complex technical issues. Stay current with industry trends and emerging technologies, advocating for their application when they benefit the organization. Required Qualifications: Minimum of 5 years of professional software engineering experience, with a proven track record of end-to-end feature ownership and delivery in production environments. Familiarity with modern frameworks, cloud platforms, and CI/CD More ❯

Freelancers will help improve AI systems through work extending coding benchmarks that reflect real-world development across diverse languages and domains. This is a unique opportunity to apply your engineering expertise toward shaping the next generation of intelligent systems. Key Responsibilities Develop and validate coding benchmarks in Python by curating issues, solutions, and test suites from real-world repositories … distribution Provide structured feedback on solution quality and clarity Debug, optimize, and document benchmark code for reliability and reproducibility Ideal Qualifications 3–10 years of experience as a backend software engineer, ML engineer, or applied data scientist Degree in Software Engineering, Computer Science, or a related field Strong proficiency in Python Experience with debugging, testing, and validating … company specializing in connecting elite professionals with cutting-edge AI initiatives. Our investors include Benchmark, General Catalyst, Adam D'Angelo, Larry Summers, and Jack Dorsey. Thousands of professionals across engineering, research, and creative fields have partnered with Mercor on frontier projects shaping the future of AI. Apply today and leverage your software engineering expertise to help build More ❯

to understand analytical needs and curate high-quality data sets Map data fields to business hypotheses, wrangle data, and ensure datasets are model-ready Contribute to a cross-functional engineering culture with a focus on quality, automation, and continuous improvement Ensure Secure & Compliant Practices Apply strong knowledge of information security principles to ensure compliant handling of sensitive client data … with security, maintainability, and scalability top of mind What You'll Bring An ideal candidate will have: Proven experience in a hands-on technical role delivering impact through data engineering, software development, or analytics Demonstrated success in launching and scaling technical products or platforms Strong programming skills in at least two of the following: Python, SQL, Java Commercial … disciplinary teams Deep knowledge of database technologies: Distributed systems (e.g., Spark, Hadoop, EMR) RDBMS (e.g., SQL Server, Oracle, PostgreSQL, MySQL) NoSQL (e.g., MongoDB, Cassandra, DynamoDB, Neo4j) Solid understanding of software engineering best practices - code reviews, testing frameworks, CI/CD, and code maintainability Experience deploying applications into production environments, including packaging, monitoring, and release management Ability to extract More ❯

relationship extraction. Design and implement intelligent tagging and metadata enrichment frameworks to categorize and organize legal and market data, improving search, discoverability, and insight accuracy. LLM & Machine Learning Application Engineering Design, build, and maintain traditional ML and LLM models and pipelines. Build LLM apps using LangGraph/LangChain: tools/function calling, structured outputs (JSON Schema), agents, and multi … step reasoning. Implement ASR/TTS and multimodal where relevant (e.g., Whisper). Choose customization paths pragmatically: prompt engineering, system prompts, tools, adapters/LoRA, and selective fine-tuning only when needed. Fine-tune and optimise ML models and LLMs to enhance performance, efficiency, and relevance for Chambers’ research, analytics, and product applications. Apply best practices for model adaptation … track data residency. Establish and drive best practices for model versioning, reproducibility, performance monitoring, bias mitigation, data governance, and ethical AI use. Document architectural decisions, runbooks, and operational procedures. Software Engineering & Collaboration Write clean, tested, maintainable code in Python (and optionally .NET). Apply SOLID, TDD/BDD where sensible, code reviews, refactoring, performance profiling. Collaborate in an More ❯

is the core technology crucial to Ki's success – allowing us to evolve underwriting intelligently and unlock massive scale. We're a multi-disciplined team, bringing together expertise in software and data engineering, full stack development, platform operations, algorithm research, and data science. Our squads focus on delivering high-impact features – we favour a highly iterative, analytical approach. … We're looking for a Staff Software Engineer to join our Engineering team. You will provide technical leadership for both delivery squads and the wider engineering organisation. Along with our engineering leadership, you'll champion engineering excellence and high standards of quality through an environment of continuous improvement. You will be hands-on, directly delivering … impactful software. You will be able to propose, design, and execute initiatives independently, leading colleagues to deliver on these goals. What you will be doing: Build robust and scalable software for business critical, web-based applications Design, build, test, document and maintain API's and integrations Develop new functionality in our core Kotlin based services, working in multi-disciplinary More ❯

needed. Your mission will be to create capabilities that automate the creation and management of Virtual Agents. You will use your knowledge of Agentic approaches for code generation and software engineering best practices to design and develop these capabilities - leveraging state-of-the-art LLM coding frameworks and endowing them with the tools and guardrails needed to reliably … the boundaries of Agentic automation, leveraging the best-in-class capabilities where it's appropriate and developing in-house when we need to. You will work with platform and software engineers to turn these capabilities into robust operational systems that can scale to deliver Virtual Agents to most operational processes currently undertaken by humans. As part of this role … industry require it Participate in our machine learning community to influence how we implement machine learning and computer vision technologies, shaping Unitary's future. Contribute full-stack development, including software engineering, DevOps, and MLOps, along with light task and project management to ensure your capabilities deliver maximum value early. Requirements You We are looking for someone as excited More ❯

Freelancers will help improve AI systems through work extending coding benchmarks that reflect real-world development across diverse languages and domains. This is a unique opportunity to apply your engineering expertise toward shaping the next generation of intelligent systems. Key Responsibilities Develop and validate coding benchmarks in React, TypeScript, or JavaScript by curating issues, solutions, and test suites from … feedback on solution quality and clarity Debug, optimize, and document benchmark code for reliability and reproducibility Ideal Qualifications 3–10 years of experience as a frontend engineer Degree in Software Engineering, Computer Science, or a related field Strong proficiency in React, Typescript or Javascript Experience with debugging, testing, and validating code Comfortable with technical writing and attention to … company specializing in connecting elite professionals with cutting-edge AI initiatives. Our investors include Benchmark, General Catalyst, Adam D'Angelo, Larry Summers, and Jack Dorsey. Thousands of professionals across engineering, research, and creative fields have partnered with Mercor on frontier projects shaping the future of AI. Apply today and leverage your software engineering expertise to help build More ❯

Data Quality will be responsible for overseeing a critical function that bridges data management with operational excellence. The role requires strong cross-functional collaboration skills to effectively engage with software engineering, and data analytics to deliver robust and effective data quality solutions. In this role, the Lead Data Engineer - Data Quality will share responsibilities in the development and … of data quality to the business, as well as support ongoing operations related to the Direct to Consumer data ecosystem. The candidate will act as a liaison between data engineering and other teams, advocating for data-driven decision making and best operational practices. Responsibilities include, but are not limited to: Help manage a high-performance team of Data Quality … products, according to business and technical requirements. Evaluate and select appropriate technologies and tools for data quality monitoring, ensuring alignment with organizational goals and industry best practices Help Data Engineering organization deliver observable, reliable and secure data quality monitors, embracing "you build it you run it" mentality, and focus on automation and GitOps. Continually work on improving the codebase More ❯

CONTRACT SENIOR SOFTWARE ENGINEER - eDV CLEARED NEW CONTRACT JOB OPPORTUNITY AVAILABLE WITHIN A LEADING NATIONAL SECURITY COMPANY FOR A SENIOR SOFTWARE ENGINEER WITH eDV CLEARANCE Contract job opportunity for a Senior Software Engineer Globally leading defence/cyber security company £500 - £750 per day (inside and outside IR35 roles available) London based organisation in an easily accessible … location Contract Senior Software Engineer To apply please call or email WHO WE ARE? We are recruiting multiple contract Senior Software Engineers to work with various clients in London ranging from R&D companies, Multi-National Consultancies to SME's and product based companies. Due to the nature of the work these clients do, you must hold enhanced … DV Security Clearance. WHAT WILL THE SENIOR SOFTWARE ENGINEER BE DOING? As a Senior Software Engineer, you will work with an experienced agile team to design and deliver packages of bespoke work, work development teams and liaise with customers. You will work through the entire software development life cycle from requirements capture to R&D, implementation to More ❯

and monitor production ML models. Partner with data engineers, ML engineers, architects, and business teams to shape ML initiatives. Present insights clearly through strong data visualisation and storytelling. Uphold software engineering and MLOps best practices (testing, versioning, quality, automation). Contribute to governance, responsible model usage, and data quality standards. Mentor juniors and support code reviews. Required Experience … models in production. Experience working in cross-functional data teams. Strong stakeholder communication skills and the ability to explain commercial impact. Understanding of ML Ops vs DevOps and broader software engineering standards. Cloud experience (any platform). Previous mentoring experience. Nice to have: Snowflake or Databricks Spark, PySpark, Hadoop or similar big data tooling BI exposure (PowerBI, Tableau More ❯

for a Forward Deployed Data Scientist to join our high-growth team. This is not your typical data role—you'll sit at the crossroads of data science, sales engineering/technical sales, client success and product management, working closely with enterprise clients to design, prototype, and deliver data solutions that quickly generate client value using Signal's technologies … possible. Accumulate experience and knowledge to act as a trusted technical advisor, helping clients explore, understand, learn and find value in Signal's unique data assets. Forward Data Science, Engineering & Product Innovation Quickly learn and use Signal's products and stack, including SDKs (Python, C#), APIs, (Snowflake) Data Warehouse or other assets Learn and become proficient in the client … usage across APIs and data products; uncover what's working and what needs improvement. Reframe underused assets for higher impact and increased adoption. Feed real client metrics back into engineering and product roadmaps. Requirements What You Bring: 5+ years in data-heavy roles (e.g., Data Engineer, Data Analyst, Data Scientist, API developer, etc.) You have extensive experience working in More ❯

firewall appliances (e.g., CheckPoint, Cisco) to ensure network security. Implement and manage routing protocols such as BGP and OSPF, with a focus on high-availability designs. Ensure adherence to software engineering best practices, including unit testing, code reviews, and troubleshooting. Support infrastructure-as-code practices using tools like Terraform, Pulumi, and GitOps principles. Contribute to an Agile development … and orchestration. Proven knowledge of routing protocols (BGP, OSPF) and high-availability architecture. Hands-on experience with Infrastructure-as-Code tools (e.g., Terraform, Pulumi) and GitOps methodologies. Expertise in software engineering practices: unit testing, code reviews, documentation, debugging, and troubleshooting. Comprehensive understanding of technology stacks, from networks to applications. Solid understanding of Linux environments and Open Source technologies More ❯

firewall appliances (e.g., CheckPoint, Cisco) to ensure network security. Implement and manage routing protocols such as BGP and OSPF, with a focus on high-availability designs. Ensure adherence to software engineering best practices, including unit testing, code reviews, and troubleshooting. Support infrastructure-as-code practices using tools like Terraform, Pulumi, and GitOps principles. Contribute to an Agile development … and orchestration. Proven knowledge of routing protocols (BGP, OSPF) and high-availability architecture. Hands-on experience with Infrastructure-as-Code tools (e.g., Terraform, Pulumi) and GitOps methodologies. Expertise in software engineering practices: unit testing, code reviews, documentation, debugging, and troubleshooting. Comprehensive understanding of technology stacks, from networks to applications. Solid understanding of Linux environments and Open Source technologies More ❯

firewall appliances (e.g., CheckPoint, Cisco) to ensure network security. Implement and manage routing protocols such as BGP and OSPF, with a focus on high-availability designs. Ensure adherence to software engineering best practices, including unit testing, code reviews, and troubleshooting. Support infrastructure-as-code practices using tools like Terraform, Pulumi, and GitOps principles. Contribute to an Agile development … and orchestration. Proven knowledge of routing protocols (BGP, OSPF) and high-availability architecture. Hands-on experience with Infrastructure-as-Code tools (e.g., Terraform, Pulumi) and GitOps methodologies. Expertise in software engineering practices: unit testing, code reviews, documentation, debugging, and troubleshooting. Comprehensive understanding of technology stacks, from networks to applications. Solid understanding of Linux environments and Open Source technologies More ❯

Senior Software Engineer £80000-100000 GBP Equity Hybrid WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Senior Software Engineer - SaaS and Payments London (4 days onsite) £80,000 to £100,000 base plus package A high-growth B2B fintech scale-up transforming how complex industries handle payments and financial workflows are growing their engineering team … They're profitable, well-funded, and engineering-led, and as their newest Engineer you'll shape their core platform and take ownership of critical features. This is a hands-on senior role where you can influence the technical direction, own features and build software that has a real impact. As a software engineer you will: Build and … CD pipelines, testing and version control practices Solve complex technical problems and deliver simple, user-friendly solutions Collaborate closely with product managers, designers and engineers to ship high-quality software Bring your experience in SaaS and payments to influence product and architecture decisions We are looking for someone with: A minimum of 5+ software engineering experience, ideally More ❯

Title: Engineering Manager Department: Engineering - reporting to the CPTO Salary: £87,500 - £125,000 (depending on experience and seniority) Benefits & Culture: See here. Equity: A very generous EMI share offering. Holiday: 26 days + bank holidays. Mission: Elevate later life for everybody and build the care sector of the future. Office Policy: Remote. Head Office Location: London Bridge … London, UK. The Opportunity: We are seeking a hands-on Engineering leader to build a new product line from the ground up and lead a small team of product engineers working on AI voice & chat agents. You will work closely with our leadership to get this from 0 to 1 in record time, and integrate seamlessly into Found, our … operating system for care. You will truly work at the intersection of product and engineering, mixing scrappiness and fast learning cycles with proper engineering to scale the product. You'll report to the CPTO with a dotted line to the GM for product direction. What does this role involve? Prototyping and building the foundation for our product. Owning More ❯

A growing space engineering team in the UK is seeking a Simulation Software Engineer to support the development of high-fidelity spacecraft simulators used for mission design, verification, and operations. Youll work alongside software and aerospace engineers to develop simulation tools, integrate flight software, and ensure robust, reliable simulator performance for upcoming spacecraft missions.= What Youll … Do Design, implement, and test spacecraft simulators as part of a multidisciplinary engineering team Develop and integrate simulation software aligned with mission and subsystem requirements Validate, configure, and deploy simulator builds into operational environments Create scripts based on operational scenarios to support testing and training Maintain simulator performance and availability for engineering and operational users Develop startup … and configuration scripts for different operational modes and system setups Essential Skills Degree in Computer Science, Electronics, or another relevant STEM discipline 2+ years of experience in software engineering or real-time software development, ideally within modelling/simulation Strong debugging and profiling experience on Linux Proficiency in modern C++ (C++14 or later) Solid understanding of object More ❯

and managing high-performing 360 recruitment teams. Designing and embedding operational processes and recruitment frameworks from scratch. Exploring and expanding into high-demand tech markets such as AI, Salesforce, Software Engineering, or other emerging specialisms. Driving client acquisition, candidate engagement, and internal hiring strategies. Taking an entrepreneurial approach to owning growth, P&L, and performance metrics. About You … or reach out directly for a confidential conversation. Experience working in a boutique, specialist recruitment agency environment—such as those focused on high-demand verticals like Salesforce, ERP, or software development—with a clear understanding of niche market dynamics, service quality, and value-driven client delivery. A hands-on leadership style and commercial mindset, ready to roll up your … recruitment processes, systems, and KPIs Track record of success in client acquisition, candidate delivery, and revenue growth Previous experience working in a boutique, specialist recruitment agency (e.g. Salesforce, ERP, software, or cloud-focused firms) Entrepreneurial mindset with the ability to launch and grow a new division Commercially driven and confident managing P&L and business development strategy Ability to More ❯

SENIOR SOFTWARE ENGINEER - eDV CLEARED NEW PERMANENT JOB OPPORTUNITY AVAILABLE WITHIN A GLOBALLY LEADING NATIONAL SECURITY COMPANY FOR A SENIOR SOFTWARE ENGINEER WITH eDV CLEARANCE Permanent job opportunity for a Senior Software Engineer Globally leading defence/cyber security company Salary up to £100,000 plus clearance bonus London based organisation in an easily accessible location Permanent … Software Engineer To apply please call/or email WHO WE ARE? We are recruiting Senior and Lead Software Engineers to work with a multi-national, industry leading National Security client in central London. Due to the nature of the work you must hold enhanced DV Security Clearance. WHAT WILL THE SENIOR SOFTWARE ENGINEER BE DOING? As … a Senior Software Engineer, you will work with an experienced agile team to design and deliver packages of bespoke work, work development teams and liaise with customers. You will work through the entire software development life cycle from requirements capture to R&D, implementation to automation. WE NEED THE SENIOR SOFTWARE ENGINEER TO HAVE.... Current enhanced DV More ❯

SENIOR SOFTWARE ENGINEER - eDV CLEARED NEW PERMANENT JOB OPPORTUNITY AVAILABLE WITHIN A GLOBALLY LEADING NATIONAL SECURITY COMPANY FOR A SENIOR SOFTWARE ENGINEER WITH eDV CLEARANCE Permanent job opportunity for a Senior Software Engineer Globally leading defence/cyber security company Salary up to £100,000 plus clearance bonus London based organisation in an easily accessible location Permanent … Software Engineer To apply please call 07704 152 640/0203 854 0120 or email WHO WE ARE? We are recruiting Senior and Lead Software Engineers to work with a multi-national, industry leading National Security client in central London. Due to the nature of the work you must hold enhanced DV Security Clearance. WHAT WILL THE SENIOR … SOFTWARE ENGINEER BE DOING? As a Senior Software Engineer, you will work with an experienced agile team to design and deliver packages of bespoke work, work development teams and liaise with customers. You will work through the entire software development life cycle from requirements capture to R&D, implementation to automation. WE NEED THE SENIOR SOFTWARE More ❯

About The Role Deadline for applications: 11:59pm on 31st October 2025 Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We use technology to create impactful, human-centred solutions that make a difference to users and organisations. We believe great engineering happens … provide hands-on technical leadership, working closely with senior stakeholders, mentoring engineers across multiple teams, and line managing a small group of engineers while helping shape our approach to software delivery, architecture, and engineering culture. Responsibilities Lead the design and development of advanced software solutions, ensuring high standards of quality, security and scalability. Set the technical direction … Provide technical leadership and coaching, fostering a culture of excellence, collaboration and continuous learning. Collaborate with senior stakeholders to translate complex business problems into elegant, robust solutions. Champion modern engineering practices including CI/CD, test automation and infrastructure as code. Foster a DevOps culture that enables teams to build, deploy and run their services confidently through automation and More ❯

About The Role Deadline for applications: 11:59pm on 31st October 2025 Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We use technology to create impactful, human-centred solutions that make a difference to users and organisations. We believe great engineering happens … provide hands-on technical leadership, working closely with senior stakeholders, mentoring engineers across multiple teams, and line managing a small group of engineers while helping shape our approach to software delivery, architecture, and engineering culture. Responsibilities Lead the design and development of advanced software solutions, ensuring high standards of quality, security and scalability. Set the technical direction … Provide technical leadership and coaching, fostering a culture of excellence, collaboration and continuous learning. Collaborate with senior stakeholders to translate complex business problems into elegant, robust solutions. Champion modern engineering practices including CI/CD, test automation and infrastructure as code. Foster a DevOps culture that enables teams to build, deploy and run their services confidently through automation and More ❯

departments, centres, and units Plan and deliver training for volunteers and media team members Transport service users as required Skills, Experience & Qualifications Bachelors degree in Media Technology, IT, Broadcast Engineering, Software Engineering, or equivalent experience Minimum 5 years experience in media production, IT management, or broadcast operations Strong IT technical knowledge including network configuration, cloud management, server More ❯

Location London Hybrid 1-2 days a week in the office eligibility to work in the UK Role Overview We are seeking a highly skilled Senior Software Developer to lead the design and development of high quality, cloud native software solutions that drive real product and business impact. In this role, you will work closely with principal engineers … security platforms. You will take ownership of technical research activities, such as spikes and proofs of concept to explore new approaches, validate ideas, and shape the future of our engineering landscape. As a technical leader, youll play a key role in guiding the team through the full software development lifecycle. You will actively contribute to and often lead … collaborative engineering activities including pair programming, code reviews, troubleshooting, and issue resolution. A strong commitment to quality is essential, as you will be expected to apply automated test-driven techniques, maintain high levels of coverage, and ensure our solutions are resilient, scalable, and production-ready. You will also support planning and estimation activities, helping ensure smooth delivery from initial More ❯