Senior Software Engineer Pythonreact Jobs in London, UK

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Senior Software Engineer

Title: Senior Software Engineer (Compilers)Company: HPC & AILocation: London (primarily remote)Compensation: Up to £190,000Company:An advanced HPC R&D firm, looking to expand the UK compiler team. Most of the team are ex-Big-Tech, ex-FAANG or ex-Chip firms. They jo ...

Senior Software Engineer

Title: Senior Software Engineer (GPU Drivers)Company: AI AccelerationLocation: London (very flexible WFH)Pay: Up to £160,000 + bonus and benefitsCompany:An advanced HPC R&D firm, looking to expand their GPU Driver team. Most of the team are ex-Big-Tech, ex-FAANG or ex- ...

Senior Software Engineer

About the Company At Cyber Guardian Consulting Group, we bring Fortune 100-caliber cybersecurity to small and medium-sized businesses. Since 2015, we've been building proactive, lightweight, and cost-effective solutions that meet and exceed modern security requirements. We're security-forward, ...

Senior Software Engineer

Senior Full Stack Software Engineer | Node.js • TypeScript • React • AWS | Scaling SaaS Start-Up ...

Senior Software Engineer

About BeyondMath BeyondMath is a pioneering startup, backed by top-tier VCs, on a mission to reshape the frontiers of engineering through Foundational AI models for Physics . We are replacing traditional, slow and expensive simulation methods with AI that rivals accuracy at orders of mag ...

Senior Software Engineer

Senior Software Engineer – Fit-Tech SaaS | Up to £80,000 | UK Remote AWS Cloud | TypeScript | React | Serverless Architecture | HealthTech Recann is partnering with an innovative SaaS organisation in the health and wellness sector that is building a next-generation dig ...

Senior Software Engineer

Software Development Engineer III Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essen ...

Senior Software Engineer

Software Development Engineer III Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essen ...

Senior Software Engineer

Senior Full Stack .NET Engineer • £75,000 – £90,000 + share options • London | Hybrid working (2–3 days office) Our client is a fast-growing payments technology company who are transforming their sector. Due to continued platform growth and ...

Senior Software Engineer

Senior Full Stack .NET Engineer • £75,000 – £90,000 + share options • London | Hybrid working (2–3 days office) Our client is a fast-growing payments technology company who are transforming their sector. Due to continued platform growth and ...

Senior Software Engineer

Senior Software Engineer – Backend (TypeScript / Node.js) Remote (UK) Circa £150,000 This opportunity is with a growing B2B technology company building backend-heavy products used by enterprise customers in a regulated space. The platform focuses on ...

Senior Software Engineer

About the Company Building out a new team in London, rapidly scaling Silicon Valley technology company building core infrastructure for physical AI across sectors including automotive, defence, construction, mining, agriculture, and logistics. Its platforms are used by leading global ...

Senior Software Engineer

Role: Senior Software Engineer (with DevOps) Location: Remote (with occasional monthly collaboration days) Are you... A software Engineer with 5+ years experience, working with modern programming with one or more programming languages, Python and ...

Senior Software Engineer

Senior Core Java Engineer – Low-Latency Trading Salary: Up to £125,000 + bonus + benefits Location: City of London (3 days onsite) Build ultra-low latency systems at the heart of global FX trading! This is an opportunity for a Senior Core Java ...

Senior Software Engineer

Aveni is redefining how financial institutions use AI. We build real, production-ready agentic systems that reshape how banks, advisers and financial services firms operate, replacing fragmented processes with intelligent, end-to-end workflows. We have been recognised as Fintech of the Year ...

Senior Software Engineer

Senior Software Engineer The Opportunity On behalf of a global powerhouse in FinTech Infrastructure , we are seeking a Senior Software Engineer . Our client operates one of the largest financial networks, serving as the digital backbone for tho ...

Senior Software Engineer

Senior Software Engineer The Opportunity On behalf of a global powerhouse in FinTech Infrastructure , we are seeking a Senior Software Engineer . Our client operates one of the largest financial networks, serving as the digital backbone for tho ...

Senior Software Engineer

Senior Go Engineer As a Senior Software Engineer at YLD, you’ll be part of a client team building innovative products. We’re looking for someone curious, passionate, driven, and enthusiastic. You should be skilled in problem-solving and experienced in designing scalable, resilient, a ...

Senior Software Engineer

Senior Software Engineer Location: London (Hybrid / On-site) Salary: £100,000 – £150,000 + equity About the Company We’re working with an early-stage, venture-backed legal technology startup on a mission to transform one of the UK’s most broken consumer e ...

Senior Software Engineer

Senior Software Engineer Location: London - Hybrid Salary: £70,000-85,000 Tech stack: Typescript & Node.js Maxwell Bond have partnered with a leading SaaS business who are looking for a Senior Software Engineer, with a focus on ...

Senior Software Engineer

Senior Software Engineer Location: London - Hybrid Salary: £70,000-85,000 Tech stack: Typescript & Node.js Maxwell Bond have partnered with a leading SaaS business who are looking for a Senior Software Engineer, with a focus on ...

Senior Software Engineer

Senior Front Office Software Engineer – Real‑Time Trading Systems Contract – Inside IR35 £700 - £1100 per day London – Hybrid (3 days in office) The Short Version. You must be a senior software engineer with experience in trading en ...

Senior Software Engineer

Title : Senior Software Engineer (Compilers) Company : HPC & AI Location : London (primarily remote) Compensation : Up to £190,000 Company : An advanced HPC R&D firm, looking ...

Senior Software Engineer

Title : Senior Software Engineer (GPU Drivers) Company : AI Acceleration Location : London (very flexible WFH) Pay : Up to £160,000 + bonus and benefits Company : An advanced ...

Senior Software Engineer

Adecco / Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by ...

Senior Software Engineer

Senior Robotics Software Engineer (Flight Software) Location: Remote (with a monthly visit to our Oxfordshire or London offices) Reporting to: Head of Engineering Contract: Permanent, Full Time About the Role We are an ambitiou ...

Senior Software Engineer

Title : Senior Software Engineer Company : AI Acceleration Location : London (very flexible WFH) Pay : Up to £180,000 + bonus and benefits Company : An advanced HPC R&D firm, looking to expand their GPU Driver team. Mo ...

Senior Software Engineer

Title : Senior Software Engineer Company : AI Acceleration Location : London (very flexible WFH) Pay : Up to £180,000 + bonus and benefits Company : An advanced HPC R&D firm, looking to expand their GPU Driver team. Mo ...

Senior Software Engineer

Senior Software Engineers – Cheshire (Remote with adhoc visits) – £65,000- £70,000 Tech: C#, .NET Core, React, Cloud Platforms, RabbitMQ, Kafka, Terraform Are you looking to join a seriously talented team undergoing a major transformation? You’ll work alongside high‑le ...

Senior Software Engineer

Senior Software Engineer Reference: BH-376p Working Hours: Full-time Job Type: Permanent Salary: Competitive Location: Remote or Hybrid - London office About The Client: Our client is ...

Senior Software Engineer

Senior C# Engineer City of London (On-site) Permanent | £90,000 – £120,000 We’re partnered with an innovative proprietary trading firm in the City of London that is hiring a Senior C# Software Engineer . You’ll work on greenfield projects, cutting ...

Senior Software Engineer

Senior Fullstack Engineer £450–500 per day 6 months Outside IR35 London – 2 days per week on site We’re supporting a high-growth, AI-driven product business building a scalable platform from the ground up. They operate as a ...

Senior Software Engineer

Job Spec - Backend Engineer About Beacon Beacon is building the AI Supply Chain workspace that customers really want. We're building end-to-end visibility, automated workflows, and effortless collaboration that create material savings and unlock new value for our customers. </ ...

Senior Software Engineer

Opportunity for a Senior Python Engineer to work remotely for a UK based AI scale-up on an initial 6-month contract outside IR35. You'd join a high-performing and autonomous product team responsible for building cloud-native, event-driven systems in a collaborative DevOps environment. <p ...

Senior Software Engineer

Senior Fullstack Engineer £450–500 per day 6 months Outside IR35 London – 2 days per week on site We’re supporting a high-growth, AI-driven product business building a scalable platform from the ground up. They operate as a ...

Senior Software Engineer

Senior Software Engineer Location: London (Hybrid / On-site) Salary: £100,000 – £150,000 + equity About the Company We’re working with an early-stage, venture-backed legal technology startup on a mission to transform one of the UK’s most broken consumer e ...

Senior Software Engineer

About the Company At Cyber Guardian Consulting Group, we bring Fortune 100-caliber cybersecurity to small and medium-sized businesses. Since 2015, we've been building proactive, lightweight, and cost-effective solutions that meet and exceed modern security requirements. We're security-forward, ...

Senior Software Engineer

AI-Native | 0→1 Build | Series B We are in the most exciting era for product builders in decades. I’m hiring a Senior Fullstack Product Engineer for an AI-native London startup building collaborative, LLM-powered tools from first principles. < ...

Senior Software Engineer

We are looking for a highly skilled Senior Backend Engineer to join the growing engineering team with my client. The ideal candidate will have extensive experience with C# and a passion for creating robust, scalable backend solutions. In this role, you will design and implement high-performance systems for Cl ...

Senior Software Engineer

Software Engineer — Data Systems Who we are We’re Metomic; a data security platform helping enterprises understand and protect sensitive data across their SaaS environments. We process large volumes of real customer data daily and our systems must remain fas ...

Senior Software Engineer

Senior Software Engineer | High-Growth Tech Scale-Up London Area (Fully Remote) PHP (Symfony or Laravel), Angular, TypeScript We’re working with a fast-growing B2B SaaS company that builds enterprise-grade software used by global organisations to manage ...

Senior Software Engineer

Senior Software Engineer | High-Growth Tech Scale-Up London Area (Fully Remote) PHP (Symfony or Laravel), Angular, TypeScript We’re working with a fast-growing B2B SaaS company that builds enterprise-grade software used by global organisations to manage ...

Senior Software Engineer

We are looking for a highly skilled Senior Backend Engineer to join the growing engineering team with my client. The ideal candidate will have extensive experience with C# and a passion for creating robust, scalable backend solutions. In this role, you will design and implement high-performance systems for Cl ...

Senior Software Engineer

Role: Senior Software Engineer (with DevOps) Location: Remote (with occasional monthly collaboration days) Are you... A software Engineer with 5+ years experience, working with modern programming with one or more programming languages, Python and ...

Senior Software Engineer

About the Company Building out a new team in London, rapidly scaling Silicon Valley technology company building core infrastructure for physical AI across sectors including automotive, defence, construction, mining, agriculture, and logistics. Its platforms are used by leading global ...

Senior Software Engineer

AI-Native | 0→1 Build | Series B We are in the most exciting era for product builders in decades. I’m hiring a Senior Fullstack Product Engineer for an AI-native London startup building collaborative, LLM-powered tools from first principles. < ...

Senior Software Engineer

Senior Software Engineer | London | £100,000 - £160,000 | Python | FastAPI | AWS Location: London based - hybrid Salary: £100,000 - £160,000 + equity Tech Stack: Backend: Python (experience with FastAPI or Django or Flask beneficial) ...

Senior Software Engineer

hackajob on-demand focuses on matching talented contractors like you with organisations seeking specific skills for their projects. We use our platform to connect you with exciting contract opportunities and discuss projects on behalf of the companies we partner with. Senior Software Engi ...

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    Senior Software Engineer Pythonreact Jobs in London Job Search Guide, Trends and Insights