1 to 25 of 198 Remote Software Engineering Jobs in London

Mercor is hiring experienced Top-Tiered Senior Software Engineering professionals to support a variety of high-impact research collaborations with leading AI labs. Freelancers will help improve AI systems through work on code validation, prompt refinement, algorithmic evaluation, and model benchmarking. This is a unique opportunity to apply your engineering expertise toward shaping the next generation of … intelligent systems. Key Responsibilities Review and refine AI-generated prompts, responses, and code Validate algorithms and software concepts for technical accuracy Provide structured feedback on solution quality and clarity Tag and organize content by topic, difficulty, or language Support benchmarking efforts to assess model capabilities Ideal Qualifications 5+ years of experience in software engineering, technical research, or … educational content development Degree in Software Engineering, Computer Science, or a related field (Bachelor's minimum; advanced degree preferred) in Top US Colleges or Universities. Strong proficiency in languages like Python, JavaScript, Java, or C++, among other popular languages Experience with debugging, testing, and validating code Comfortable with technical writing and attention to detail Project Timeline Start Date More ❯

We're looking for someone that is passionate about Security Engineering with a core software engineering background to do something that is the first of its kind at this scale. We're embedding a Security Engineer directly into a product squad where you'll be building a world-class security control (our own Airlock), written in Python … and designed from the ground up. You'll start fully embedded in our Research Enablement squad, acting as both Security SME and Software Engineer. Over time, your role will evolve into a roughly 50/50 split between hands-on coding and broader security engineering across the organisation. We're looking for someone with a strong software engineering mindset, a love of automation, and the ability to balance technical ambition with pragmatic delivery. If you've built security tools in product-led environments, this is your chance to do it again, but in an environment that is striving to deliver a positive impact to millions of people. At Our Future Health, our mission is to More ❯

Location/s: London Recruiter contact: Nikki George Mott MacDonald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices. We work across incredible global industries, delivering exciting work that is defining our future and making an important societal impact in the communities we serve. Our people power … our global reach. About the Role We're seeking a Principal Full Stack Engineer to lead the design, development, and scaling of AI-powered digital products that serve infrastructure, engineering, and consulting professionals around the globe. This is a hands-on leadership role that blends deep technical skills with strategic thinking. You'll balance the role of individual contributor … managers to shape roadmaps based on technical feasibility and user value. DevOps & CI/CD: Support cloud-native deployment pipelines, automated testing, and observability for everything we build. Champion software engineering excellence: Drive continuous improvement across software engineering culture, codebases, and development practices. What You'll Bring Clear communicator, with the ability to engage and influence More ❯

benefits Secure hybrid model with three days onsite and two days remote Play a key role in high impact national security work as an Active Cyber Engineer Work across software engineering, research, and advanced cyber capability development Active eDV clearance required ABOUT THE CLIENT Our client is a specialist organisation that delivers high assurance technology solutions to support … technical work THE ACTIVE CYBER ENGINEER ROLE As an Active Cyber Engineer, you will contribute to the full lifecycle of cyber capability development. You will design and develop bespoke software across a range of platforms, conduct exploratory research, assess vulnerabilities, and translate research output into proof-of-concept tooling and robust operational capabilities. You will also work within an … Agile environment, present findings to customers and stakeholders, and support planning, estimation, and engineering best practice. ACTIVE CYBER ENGINEER ESSENTIAL SKILLS Strong software engineering background Experience with one or more of the following: C, C Plus Plus, Python, Assembly, or C Sharp Understanding of vulnerability research or exploratory research environments Experience across at least one major platform More ❯

to meet/exceed SLOs (Service Level Objectives) The role will be responsible to the Principal Specialist Engineer SRE and is part of the High Performance Computing, Site Reliability Engineering , Artificial intelligence (HPC/SRE/AI) & research computing unit whose remit is to: Architect, develop & manage multi-cloud HPC platforms and on-premise infrastructure Ensure services are highly … repeatable operations, reduce manual intervention and improve efficiency. Write code that is maintainable, clear, and concise. Optimise system performance using strong problem-solving skills to identify bottlenecks with an engineering mindset. Ensure systems can handle current and future workloads through automation and capacity planning. Continuously improve services through observability, and identify ways to improve observability practices. Follow SRE principles. … Guide and educate stakeholders to adopt implemented principles. Provide technical documentation for engineers. Providing training, where appropriate. Working closely with engineering and technology teams to improve operational processes, reduce manual tasks, ensure seamless collaboration/knowledge sharing, reduce risks and adapt to new ways of working. This list is not exhaustive. About us We pride ourselves as being an More ❯

Location London Hybrid 1-2 days a week in the office eligibility to work in the UK Role Overview We are looking for a passionate Senior Software Engineer who lives and breathes Java development to join us working with our media client. You will make a key contribution to the entire development lifecycle including new writing features, fixing bugs … and performing code reviews. You will have the opportunity to lead the design and development of high quality software solutions and tools to meet business needs, collaborate with Principle Engineers and Architects to define best practices, write clean/efficient code following good design patterns, lead research activities such as technical spikes, lead troubleshooting and issue resolution activities, follow … have developed CI pipelines be confident deploying code to production systems be an excellent communicator and enjoy team collaboration some experience in AWS CDK (desired) have solid understanding of software development principles, best practices and Agile methods (desired) have developed non-functional concerns e.g. integration with monitoring/alerting tools, security tools and practice (desired) have a strong willingness More ❯

HL are looking for an experienced and talented Software Engineering Manager to lead a Unified Client Experience (UCX) product development team in building market-leading solutions for our clients. About HL and the opportunity. We're building the next generation platform for one of the UK's largest financial services companies, trusted by over 2 million clients and … of the whole organisation, transforming client journeys and delivering on HL's vision to give people financial freedom. You will work with like-minded people from business, product and engineering functions to develop and refine client journeys covering onboarding, KYC, account management and investment workflows in a secure and compliant environment. By joining us, you'll help deliver innovative … Be part of HL's future. Be part of the future of investing. Shape it with us. What You'll Be Doing Building and deploying scalable, secure, and compliant software at pace. Integrating HL web and mobile apps with existing and new systems to deliver a seamless client experience across a range of products and services. Delivering value iteratively More ❯

and video content online. In a future dominated by digital media, our role ensures the content stays relevant in a rapidly evolving landscape. To join our Agile, multi-disciplinary engineering team, the ideal candidate will have strong skills in Java, AWS (Lambda, Step Functions, S3, SQS/SNS, EventBridge), CI/CD pipelines, TDD/BDD, and enjoy pair … high level confident communicator with a Growth Mindset have an understanding of CI/CD be competent coding using Test Driven Development & BDD patterns have a solid understanding of software development principles proactive and a results orientated individual enjoy pair programming and collaborating with other engineers have a strong willingness to learn and be a keen team player have … documentation Tools and Technology Java AWS (Lambdas, Step Functions, S3, SQS/SNS EventBridge) CI/CD TDD &BDD Python, Bash or Ruby Experience A degree in Computer Science, Software Engineering, or a related field or similar work based experience. Proven experience as a Senior Software Engineer ideally with a focus on media-related projects. Very good More ❯

Are you ready to work on cutting-edge software that supports next-generation naval technology? We're looking for a talented Software Test Engineer to join our innovative Radar & Naval team. You'll play a key role in building, testing, and improving software that powers advanced naval systems, helping ensure mission-critical performance and reliability. What You … ll Do: Develop, test, and validate software that underpins state-of-the-art naval and radar products. Create and maintain detailed software build and test specifications. Collaborate with internal teams and external partners to ensure seamless software integration. Improve software testability and quality through innovative approaches. Take on exciting project challenges that directly impact cutting-edge … technology. Occasionally travel to UK and international sites to see your software in action at sea. What You'll Bring: Technical background and hands-on experience testing software on Windows platforms. Knowledge of scripting/programming languages to automate builds and testing. Understanding of the Software Engineering Lifecycle, especially testing and integration. Strong communication skills and More ❯

the opportunity to work on some really challenging and interesting, large scale transformational and migration projects within both public and private sector. Designing, developing, testing and maintaining cloud-based software applications. Technical leadership within a team to coordinate and deliver scalable, secure solutions in line with good industry software engineering practices (code quality, CI/CD, security … etc). Working within a project management/agile delivery methodology Experience in technical ownership for a product or software solution, covering design, estimation, shaping and user story/requirement creation Documentation of solutions (e.g. architecture, configuration, release, support-handover Collaborate and liaise with other Version 1 and customer stakeholders/end users in the software development lifecycle … patterns, including microservices and message-driven architectures NFR/Non-Functional requirement understanding and experience developing applications with this in mind Application/Digital Services Design experience Experience in software engineering practices like Code Reviews, CI/CD Pipelines and SOLID/DRY principals Hands-on developing/coding role using the following technologies: Frontend (JavaScript/TypeScript More ❯

We're hiring engineers who ship fast, build delightful products, and want to step into the arena in the fight against climate change. We're building the software infrastructure for the decarbonised energy system, backed by some of the best investors in the world (TechCrunch). We make the technology to move energy usage to times when electricity is … cheap and green. Our software controls vehicle charging, heating systems, and home batteries. We use machine learning to figure out what energy people will need, and when they'll need it. We control tens of thousands of energy assets, and we're growing quickly. Read more about what we're building here. About the role: Software Engineers at … Axle build the core infrastructure for connecting to distributed energy devices, orchestrating them, and allowing them to participate in electricity markets. This is a generalist Software Engineering role, encompassing product-engineering, devops, and data engineering. We encourage engineers to own as much of the problem-space as they can: you'll spend time talking to clients, getting More ❯

Advance practical quantum computing through robust, production‐grade software. Haiqu is building a world-leading software platform that enables previously impossible applications on modern quantum processors. Our full-stack approach has shown industry-first results in pilots with leading quantum early adopters. Backed by top investors, we offer a unique opportunity to join a fast-growing team and shape … the development of the Quantum Computing software stack, allowing researchers and engineers to build meaningful applications without worrying about low-level intricacies. We are looking for a Software Engineer (Quantum Platform and Tools) to contribute to the development of core components of our stack—from designing performant transpilation passes and hardware integrations to expanding our cloud‐native SDK … to quantum hardware APIs. Experience of API-level interaction and understanding of device-specific properties (e.g., coherence times, gate fidelities, execution queues) Requirements Strong experience in Python and modern software engineering practices Be comfortable with low-level programming when needed (e.g. C++, Rust, C) Strong software engineering background, including: Design patterns Data structures and algorithms API More ❯

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 ❯

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 ❯

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 Go 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 Go 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 ❯

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 ❯

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 ❯

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 ❯

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 ❯