751 to 775 of 821 Software Engineering Jobs in the City of London

Contract | Staff Frontend Software Engineer | £600-£800/day Outside IR35 React Software Engineer £600-£800/day Initial 6 Month Duration Outside IR35 Hybrid - Central London (3 days a week) We are partnered with a well-funded scale up in the BioTech sector who are developing software to support autonomous robotics. They are building cutting edge … pivoting products at speed, ideally in startup/scaleup contexts. A mindset for tracking the latest trends and experimenting with new tools to raise the bar. Contract | Staff Frontend Software Engineer | £600-£800/day Outside IR35 More ❯

Contract | Staff Frontend Software Engineer | £600-£800/day Outside IR35 React Software Engineer £600-£800/day Initial 6 Month Duration Outside IR35 Hybrid - Central London (3 days a week) We are partnered with a well-funded scale up in the BioTech sector who are developing software to support autonomous robotics. They are building cutting edge … pivoting products at speed, ideally in startup/scaleup contexts. A mindset for tracking the latest trends and experimenting with new tools to raise the bar. Contract | Staff Frontend Software Engineer | £600-£800/day Outside IR35 More ❯

Head of Engineering (Hands-On Lead) - Up to £100k 💸 Up to £100,000 + Bonus + Equity 📍 London (Hybrid – 2 days/week in office) Tech environment: Angular, Ionic (iOS & Android), TypeScript, NestJS, Nx, Azure Flexible on prior technical experience We’re on the lookout for a Hands On Lead who enjoys coding while also leading a talented dev … . Ensure architecture, security, and infrastructure can scale globally. Collaborate with Product to deliver a best-in-class user experience. If interested, please get in touch now!! Head of Engineering (Hands-On Lead) - Up to £100k More ❯

scalability and stability. This phase involves the integration of a new, event-based, near real-time system. These 2 x C#.Net Core, Azure Event Hubs or Apache Kafka, contract software engineers will be responsible for designing, developing, and delivering production software. Additionally, they will contribute to shaping the broader technical architecture of the platform, aligning solutions with our IT … their Office in London Responsibilities: Engage in the development of various system components including web applications, real-time data processors, data analytics/visualizations, and data integrations. a strong engineering focus and a commitment to quality delivery, while navigating time constraints, risks, and costs in our fast-paced, results-driven trading environment. purpose-driven technical architectures, owning the system … databases like SQL Server and NoSQL databases like MongoDB or CosmosDB. debugging and troubleshooting skills within the .NET environment, including performance optimization and monitoring. Familiarity with a range of software development tools, such as source code management (e.g. Azure DevOps, Git), build and release management (e.g. Azure DevOps Pipelines) and test automation (e.g. unit testing tools, BDD tools like More ❯

scalability and stability. This phase involves the integration of a new, event-based, near real-time system. These 2 x C#.Net Core, Azure Event Hubs or Apache Kafka, contract software engineers will be responsible for designing, developing, and delivering production software. Additionally, they will contribute to shaping the broader technical architecture of the platform, aligning solutions with our IT … their Office in London Responsibilities: Engage in the development of various system components including web applications, real-time data processors, data analytics/visualizations, and data integrations. a strong engineering focus and a commitment to quality delivery, while navigating time constraints, risks, and costs in our fast-paced, results-driven trading environment. purpose-driven technical architectures, owning the system … databases like SQL Server and NoSQL databases like MongoDB or CosmosDB. debugging and troubleshooting skills within the .NET environment, including performance optimization and monitoring. Familiarity with a range of software development tools, such as source code management (e.g. Azure DevOps, Git), build and release management (e.g. Azure DevOps Pipelines) and test automation (e.g. unit testing tools, BDD tools like More ❯

Software Engineer – AI Infrastructure | Up to £130K + Equity | London We're working with a stealth-stage AI infrastructure startup in London, founded by ex–Palantir engineering leads. Their mission is to help enterprises structure and automate messy internal data and processes, one of the biggest challenges businesses face AI today. They’re hiring a Backend Engineer (3+ More ❯

Software Engineer – AI Infrastructure | Up to £130K + Equity | London We're working with a stealth-stage AI infrastructure startup in London, founded by ex–Palantir engineering leads. Their mission is to help enterprises structure and automate messy internal data and processes, one of the biggest challenges businesses face AI today. They’re hiring a Backend Engineer (3+ More ❯

experiment, prototype, and deliver impact. No rigid frameworks. No bureaucracy. No “wait for approval” culture. This is your playground — your AI Lab — to build real solutions that blend research, engineering, and imagination. What You’ll Be Doing Build and scale the company’s first AI R&D function from the ground up Design and deploy intelligent agents, models, and … core SaaS products Develop reusable architectures and rapid prototypes that move from idea to value fast Work with the AI Advisory Board to shape strategic direction Upskill the wider engineering team in AI-first principles You’ll be turning raw data into smart systems that help schools, teachers, and students make better decisions — creating intelligent products that learn, adapt … confident designing APIs, microservices, and data pipelines. Maybe you’ve come from an academic background and now want to apply your research commercially. Or maybe you’re an experienced software engineer who’s already delivering AI-led solutions. Either way, you’re curious, bold, and ready to lead something special. Why This Role Really Matters This role is the More ❯

experiment, prototype, and deliver impact. No rigid frameworks. No bureaucracy. No “wait for approval” culture. This is your playground — your AI Lab — to build real solutions that blend research, engineering, and imagination. What You’ll Be Doing Build and scale the company’s first AI R&D function from the ground up Design and deploy intelligent agents, models, and … core SaaS products Develop reusable architectures and rapid prototypes that move from idea to value fast Work with the AI Advisory Board to shape strategic direction Upskill the wider engineering team in AI-first principles You’ll be turning raw data into smart systems that help schools, teachers, and students make better decisions — creating intelligent products that learn, adapt … confident designing APIs, microservices, and data pipelines. Maybe you’ve come from an academic background and now want to apply your research commercially. Or maybe you’re an experienced software engineer who’s already delivering AI-led solutions. Either way, you’re curious, bold, and ready to lead something special. Why This Role Really Matters This role is the More ❯

into robust technical solutions. Implement best practices for data modelling, data quality, and performance tuning across cloud-based platforms. Collaborate with cross-functional teams including data scientists, analysts, and software engineers to deliver end-to-end data solutions. Ensure data security, compliance, and governance standards are met across all projects. Required Skills Strong experience with Azure data services (Data … client-facing roles is highly desirable. Familiarity with CI/CD pipelines and version control tools (e.g., Git, Azure DevOps). Desirable Exposure to Python or Scala for data engineering tasks. Knowledge of Power BI or other visualisation tools. Experience with data governance frameworks and metadata management. If you’re interested, get in touch ASAP with a copy of More ❯

into robust technical solutions. Implement best practices for data modelling, data quality, and performance tuning across cloud-based platforms. Collaborate with cross-functional teams including data scientists, analysts, and software engineers to deliver end-to-end data solutions. Ensure data security, compliance, and governance standards are met across all projects. Required Skills Strong experience with Azure data services (Data … client-facing roles is highly desirable. Familiarity with CI/CD pipelines and version control tools (e.g., Git, Azure DevOps). Desirable Exposure to Python or Scala for data engineering tasks. Knowledge of Power BI or other visualisation tools. Experience with data governance frameworks and metadata management. If you’re interested, get in touch ASAP with a copy of More ❯

startup is doing and they’ve already made impressive headway. They’re helping these critical systems move faster, smarter, and more reliably than ever. By replacing clunky, decades old software with custom AI powered tools, they’re solving problems traditional systems can’t even touch. In short, they’re turning industrial scale headaches into smooth, automated solutions that actually … ARR, and built a loyal, growing client base. No hype, no fluff, just a team tackling real world problems with smart tech and real impact. If you’re a Software Engineer at heart but also have an “infra brain,” this could be your playground. You’ll love writing Go or Python, while also thinking about the bigger picture, building More ❯

startup is doing and they’ve already made impressive headway. They’re helping these critical systems move faster, smarter, and more reliably than ever. By replacing clunky, decades old software with custom AI powered tools, they’re solving problems traditional systems can’t even touch. In short, they’re turning industrial scale headaches into smooth, automated solutions that actually … ARR, and built a loyal, growing client base. No hype, no fluff, just a team tackling real world problems with smart tech and real impact. If you’re a Software Engineer at heart but also have an “infra brain,” this could be your playground. You’ll love writing Go or Python, while also thinking about the bigger picture, building More ❯

As a GPU Software Engineer, you’ll be translating innovative research into high-performance, high-quality GPU compute solutions—playing a key role in delivering next-generation media technology to the market. Hybrid working, 3 days onsite and 2 days working from home. Key Skills & Qualifications: Degree in Electronics Engineering, Computer Science, or a related field. Proven experience … platform solutions for operating systems including Windows, Linux, iOS, and Android. Enhance, maintain, and expand existing codebases (C/C Python). Integrate third-party commercial and open-source software components. Produce clear and well-structured technical documentation, including specifications, APIs, and integration guides. Support external partners and customers in integrating SDKs. Test and evaluate complex signal processing code More ❯

As a GPU Software Engineer, you’ll be translating innovative research into high-performance, high-quality GPU compute solutions—playing a key role in delivering next-generation media technology to the market. Hybrid working, 3 days onsite and 2 days working from home. Key Skills & Qualifications: Degree in Electronics Engineering, Computer Science, or a related field. Proven experience … platform solutions for operating systems including Windows, Linux, iOS, and Android. Enhance, maintain, and expand existing codebases (C/C Python). Integrate third-party commercial and open-source software components. Produce clear and well-structured technical documentation, including specifications, APIs, and integration guides. Support external partners and customers in integrating SDKs. Test and evaluate complex signal processing code More ❯

Staff Software Engineer | AI-Powered Startup | Backed by Leading VCs Were partnering with a well-funded, early-stage AI startup thats on a mission to transform how people and intelligent systems work together. Their platform unifies AI, automation, and data-driven decision-making into one seamless experience - helping teams move faster, think smarter, and achieve more impact. Supported by … top-tier investors and seeing strong early adoption, theyre entering a high-growth phase and looking for a hands-on Software Engineer to play a key role in shaping the companys technical foundation and future direction. The Opportunity This is a hands-on, high-impact role where youll work directly with the founding team to design, build, and scale … product features that leverage AI and automation Design and scale backend systems in Python , ensuring performance and reliability Collaborate closely with founders on product design and technical strategy Shape engineering best practices, tooling, and future team structure What Were Looking For Strong experience designing and scaling production systems (Python preferred) Hands-on experience with AI/ML applications , automation More ❯

We are looking for a Software Engineer to the Ultra-Low Latency (ULL) Market Making team within this rapidly expanding Prop Trading firm based in London. This is a hands-on engineering role at the frontier of high-performance trading systems What You’ll Do Design and implement modern C++ (C++20/23) applications for ultra-low latency … AI/ML integration in performance-sensitive environments. Bonus: Familiarity with kernel bypass technologies (DPDK, RDMA, Solarflare, etc.) . Why Join Work on mission-critical trading infrastructure where your engineering directly impacts performance and profitability. Collaborate with a world-class team of engineers, traders, and researchers. Push the boundaries of system-level optimization, hardware acceleration, and AI integration . … Market leading compensation, benefits, and a culture that rewards innovation and technical mastery. If you’re passionate about building ultra-fast systems and excited by the challenge of combining software, hardware, and AI to redefine what’s possible in electronic trading, we’d love to hear from you. More ❯

We are looking for a Software Engineer to the Ultra-Low Latency (ULL) Market Making team within this rapidly expanding Prop Trading firm based in London. This is a hands-on engineering role at the frontier of high-performance trading systems What You’ll Do Design and implement modern C++ (C++20/23) applications for ultra-low latency … AI/ML integration in performance-sensitive environments. Bonus: Familiarity with kernel bypass technologies (DPDK, RDMA, Solarflare, etc.) . Why Join Work on mission-critical trading infrastructure where your engineering directly impacts performance and profitability. Collaborate with a world-class team of engineers, traders, and researchers. Push the boundaries of system-level optimization, hardware acceleration, and AI integration . … Market leading compensation, benefits, and a culture that rewards innovation and technical mastery. If you’re passionate about building ultra-fast systems and excited by the challenge of combining software, hardware, and AI to redefine what’s possible in electronic trading, we’d love to hear from you. More ❯

space. They're looking for a Staff Backend Engineer to take on one of their most senior individual contributor positions, providing hands-on technical leadership while helping define the engineering culture. This is a rare chance to have genuine impact on the technical direction of business-critical, data driven systems with AI at the centre. You’ll work across … setting high standards, mentoring engineers, and collaborating with stakeholders to deliver real user and business value. The Opportunity Drive technical strategy and system architecture across multiple teams. Tackle complex engineering challenges end-to-end, delivering the most critical components yourself. Champion engineering best practices—from design and implementation to testing, observability, and scaling. Collaborate with product, data, and … clarity to ambiguous problems, unblock teams, and ensure sound decision-making through clear, informed communication. Contribute to company-wide technical standards and improve processes and tooling for the broader engineering organisation. What We’re Looking For Proven experience designing and delivering scalable distributed systems , ideally with Python or a mix of statically and dynamically typed languages. Strong track record More ❯

space. They're looking for a Staff Backend Engineer to take on one of their most senior individual contributor positions, providing hands-on technical leadership while helping define the engineering culture. This is a rare chance to have genuine impact on the technical direction of business-critical, data driven systems with AI at the centre. You’ll work across … setting high standards, mentoring engineers, and collaborating with stakeholders to deliver real user and business value. The Opportunity Drive technical strategy and system architecture across multiple teams. Tackle complex engineering challenges end-to-end, delivering the most critical components yourself. Champion engineering best practices—from design and implementation to testing, observability, and scaling. Collaborate with product, data, and … clarity to ambiguous problems, unblock teams, and ensure sound decision-making through clear, informed communication. Contribute to company-wide technical standards and improve processes and tooling for the broader engineering organisation. What We’re Looking For Proven experience designing and delivering scalable distributed systems , ideally with Python or a mix of statically and dynamically typed languages. Strong track record More ❯

. Join geospatial datasets with external data sources and apply complex transformations. Define validated data schemas and create clear documentation for partners and teams. Explore and evaluate new data engineering tools and technologies. Role Requirements 5+ years' experience in data engineering, analytics, or related roles. Strong proficiency in Python, with demonstrated experience on large-scale projects. Solid understanding … blogs, or demos). Knowledge of data cleansing, validation, and basic statistics. Background in working with Agile methods and fast iteration cycles. Bachelor's degree in Computer Science, Data Engineering, or related field (or equivalent experience). More ❯

Backed by top VCs and already processing billions of events every week, this team is redefining how enterprises protect their cloud environments - and they’re looking for a Founding Software Engineer to help shape the journey. They’ve doubled ARR in the last quarter, landed on multiple “Top Startups to Watch” lists, and earned the trust of major global … brands - yet they’re still early enough for you to make a massive impact. You’ll be joining a world-class engineering team, building from scratch, and solving real customer challenges at scale. They’re looking for someone who: 💡 Has solid OOP skills (Python, Java, Go, or Rust all welcome - core stack is C#, and they’ll help you More ❯

its core mobile platform. This company is building an innovative product that delivers real-world insights to a growing global client base and is supported by a world-class engineering team with experience from top-tier tech companies. The Role: In this role, you will lead the development of the central mobile application for a cutting-edge AI platform More ❯

its core mobile platform. This company is building an innovative product that delivers real-world insights to a growing global client base and is supported by a world-class engineering team with experience from top-tier tech companies. The Role: In this role, you will lead the development of the central mobile application for a cutting-edge AI platform More ❯

the lives of local communities? Recruit with Purpose are supporting one of Londons leading housing associations as they grow their IT team. I am the lookout for an experienced Software Developer who can focus on Integration Development. You will help shape a robust, well-documented integration layer that supports this Housing Association on both their day-to-day operations More ❯