13 of 13 Permanent Senior Backend Developer Jobs in London

Senior Backend Developer - Python, AWS, Django Central London/Hybrid -one day in the office £75-85k + benefits Were seeking a topflight Senior Backend Developer with a strong software engineering background including 8-9+ years majoring in writing Backend applications using Python and Django (Rest Framework). This is a … seriously weighty, complex, technically challenging role; the successful Backend Developer will be 'red hot' on the core backend skill requirements. Demonstrably the 'go to' person in your role. The Backend Python Developer will be joining a team of 45 at a world-class healthcare scaleup. With each integration of a new hospital group there is … Proactively respond to analytics to ensure our products are robust and meet users needs Take technical ownership of areas of product Required: 8-9+ years of experience writing Backend applications using Python and Django (Rest Framework) or related frameworks, e.g. Flask, FastAPI or similar Good understanding of ORM (either Django or SQLAlchemy) Good understanding of Python Unit Testing More ❯

value humanity and collaboration, encourage professional and personal growth, and foster a supportive and flexible work environment where everyone's contribution is welcomed. Now we are looking for a Senior Backend Developer to join us as part of our team. About the role You will be working in a team that combines investment expertise with advanced technology … solutions. We build products where data security is a top priority, and we are looking for a strong backend developer with experience in information security and SOC 2 compliance. As a qualified expert, You will Develop backend applications using Node.js + TypeScript Design secure system architectures Implement solutions that meet SOC 2 and other security standards Work More ❯

Senior Backend Engineer | High-Growth Cybersecurity Scale-Up | Fully Remote (Global) Are you ready to build the core systems that power one of the fastest-growing cybersecurity platforms on the planet? ?? This is your chance to join a research-driven, venture-backed security scale-up thats trusted by some of the worlds biggest enterprises and critical infrastructure providers. … Recognised by Gartner, armed with $29M+ in funding, and scaling aggressively worldwide, theyre on a mission to reshape how organisations stay ahead of real-world cyber threats. As a Senior Backend Engineer , youll play a key role in building scalable, high-performance backend systems that ingest, process, and serve data on millions of assetshelping global security teams … uncover exposures before attackers do. What youll be doing: Designing and building backend services and data pipelines powering a cutting-edge cybersecurity platform Architecting scalable microservices and APIs to process massive volumes of security data Working closely with product and frontend teams to integrate backend services into the platform experience Continuously improving systems performance, deployment, and monitoring as More ❯

Senior Backend Developer (PHP/Laravel ) - Orpington Hyb rid | Orpington Full-Time | Salary £60,000 - £75,000 Join a fast-growing tech company disrupting the entertainment space. Our client is building a platform that delivers subscription-based services to consumers, and they need a backend wizard to help them scale. Your Role Build fast, scalable systems More ❯

Are you an experienced backend engineer with a deep background in FinTech, ready to architect a new payments platform from the ground up? We are representing a well-funded FinTech startup seeking a foundational Lead Backend Engineer. This is a unique greenfield opportunity to be the technical authority, making key architectural decisions that will shape the future of … corporations. They are building the nucleus of a product ecosystem that will redefine FinTech for SMEs in the UK and beyond. What You'll Be Doing As the Lead Backend Engineer, you will be the cornerstone of a new development team. You will: Lead the Architecture: Design and develop the core backend of the payment platform, including the … API gateway, transaction management layer, and merchant services. Mentor & Guide: Act as a technical mentor to another backend developer, fostering a culture of high-quality engineering and collaborative growth. Own Security & Compliance: Take the lead on implementing robust security measures (e.g., AES-256 encryption, OAuth/JWT) and ensuring the platform is compliant with PCI-DSS and GDPR. More ❯

Are you an experienced backend engineer with a deep background in FinTech, ready to architect a new payments platform from the ground up? We are representing a well-funded FinTech startup seeking a foundational Lead Backend Engineer. This is a unique greenfield opportunity to be the technical authority, making key architectural decisions that will shape the future of … corporations. They are building the nucleus of a product ecosystem that will redefine FinTech for SMEs in the UK and beyond. What You'll Be Doing As the Lead Backend Engineer, you will be the cornerstone of a new development team. You will: Lead the Architecture: Design and develop the core backend of the payment platform, including the … API gateway, transaction management layer, and merchant services. Mentor & Guide: Act as a technical mentor to another backend developer, fostering a culture of high-quality engineering and collaborative growth. Own Security & Compliance: Take the lead on implementing robust security measures (e.g., AES-256 encryption, OAuth/JWT) and ensuring the platform is compliant with PCI-DSS and GDPR. More ❯

Are you an experienced backend engineer with a deep background in FinTech, ready to architect a new payments platform from the ground up? We are representing a well-funded FinTech startup seeking a foundational Lead Backend Engineer. This is a unique greenfield opportunity to be the technical authority, making key architectural decisions that will shape the future of … corporations. They are building the nucleus of a product ecosystem that will redefine FinTech for SMEs in the UK and beyond. What You'll Be Doing As the Lead Backend Engineer, you will be the cornerstone of a new development team. You will: Lead the Architecture: Design and develop the core backend of the payment platform, including the … API gateway, transaction management layer, and merchant services. Mentor & Guide: Act as a technical mentor to another backend developer, fostering a culture of high-quality engineering and collaborative growth. Own Security & Compliance: Take the lead on implementing robust security measures (e.g., AES-256 encryption, OAuth/JWT) and ensuring the platform is compliant with PCI-DSS and GDPR. More ❯

Senior Backend Software Engineer (multiple vacancies) – Python | FastAPI | AWS | Microservices 💵 £70,000–95,000 base salary + Bonus 📦 Flexible benefits budget | 90 day work-from-anywhere perk 💻 Python, FastAPI, PostgreSQL, DynamoDB, AWS, EKS 📍 Remote first or hybrid (London) InsurTech | Modern, high traffic, scalable microservices development We’ve partnered with a well known name in the insuretech space - one … and strong engineering leadership, they offer the right mix of scale-up pace, engineering maturity, and long-term growth potential. They're looking for a number of bright, engaging Senior and Lead Software Engineers familiar with or interested in working with their tech stack. Tech stack: Python (FastAPI) | gRPC | GraphQL | PostgreSQL | DynamoDB | AWS | EKS | CI/CD pipelines What … you’ll be doing: ✅ Contributing to the design and development of scalable backend systems ✅ Working across rotating product squads with full domain exposure ✅ Deploying and owning your code in production (AWS EKS) ✅ Collaborating with product and engineering leads to solve complex problems Nice to have: 🟢 FastAPI, GraphQL, gRPC 🟢 Experience with AWS and CI/CD tooling This is a More ❯

Senior Backend Software Engineer (multiple vacancies) – Python | FastAPI | AWS | Microservices 💵 £70,000–95,000 base salary + Bonus 📦 Flexible benefits budget | 90 day work-from-anywhere perk 💻 Python, FastAPI, PostgreSQL, DynamoDB, AWS, EKS 📍 Remote first or hybrid (London) InsurTech | Modern, high traffic, scalable microservices development We’ve partnered with a well known name in the insuretech space - one … and strong engineering leadership, they offer the right mix of scale-up pace, engineering maturity, and long-term growth potential. They're looking for a number of bright, engaging Senior and Lead Software Engineers familiar with or interested in working with their tech stack. Tech stack: Python (FastAPI) | gRPC | GraphQL | PostgreSQL | DynamoDB | AWS | EKS | CI/CD pipelines What … you’ll be doing: ✅ Contributing to the design and development of scalable backend systems ✅ Working across rotating product squads with full domain exposure ✅ Deploying and owning your code in production (AWS EKS) ✅ Collaborating with product and engineering leads to solve complex problems Nice to have: 🟢 FastAPI, GraphQL, gRPC 🟢 Experience with AWS and CI/CD tooling This is a More ❯

Senior Backend Software Engineer (multiple vacancies) – Python | FastAPI | AWS | Microservices 💵 £70,000–95,000 base salary + Bonus 📦 Flexible benefits budget | 90 day work-from-anywhere perk 💻 Python, FastAPI, PostgreSQL, DynamoDB, AWS, EKS 📍 Remote first or hybrid (London) InsurTech | Modern, high traffic, scalable microservices development We’ve partnered with a well known name in the insuretech space - one … and strong engineering leadership, they offer the right mix of scale-up pace, engineering maturity, and long-term growth potential. They're looking for a number of bright, engaging Senior and Lead Software Engineers familiar with or interested in working with their tech stack. Tech stack: Python (FastAPI) | gRPC | GraphQL | PostgreSQL | DynamoDB | AWS | EKS | CI/CD pipelines What … you’ll be doing: ✅ Contributing to the design and development of scalable backend systems ✅ Working across rotating product squads with full domain exposure ✅ Deploying and owning your code in production (AWS EKS) ✅ Collaborating with product and engineering leads to solve complex problems Nice to have: 🟢 FastAPI, GraphQL, gRPC 🟢 Experience with AWS and CI/CD tooling This is a More ❯

Senior Backend Software Engineer (multiple vacancies) – Python | FastAPI | AWS | Microservices 💵 £70,000–95,000 base salary + Bonus 📦 Flexible benefits budget | 90 day work-from-anywhere perk 💻 Python, FastAPI, PostgreSQL, DynamoDB, AWS, EKS 📍 Remote first or hybrid (London) InsurTech | Modern, high traffic, scalable microservices development We’ve partnered with a well known name in the insuretech space - one … and strong engineering leadership, they offer the right mix of scale-up pace, engineering maturity, and long-term growth potential. They're looking for a number of bright, engaging Senior and Lead Software Engineers familiar with or interested in working with their tech stack. Tech stack: Python (FastAPI) | gRPC | GraphQL | PostgreSQL | DynamoDB | AWS | EKS | CI/CD pipelines What … you’ll be doing: ✅ Contributing to the design and development of scalable backend systems ✅ Working across rotating product squads with full domain exposure ✅ Deploying and owning your code in production (AWS EKS) ✅ Collaborating with product and engineering leads to solve complex problems Nice to have: 🟢 FastAPI, GraphQL, gRPC 🟢 Experience with AWS and CI/CD tooling This is a More ❯

Experienced Back End Typescript/Javascript Developer (AWS, Typescript, NodeJS, GraphQL) - TSDBE25 You will need extensive experience using Typescript and AWS services for this role. We develop the SaaS platform that keeps beer flowing through the UK’s pubs. We run a serverless stack, using the Serverless Framework, AWS Lambda, AWS AppSync and other AWS managed services. We use … significant amount of time supporting your ongoing learning and development goals. Key Duties and Responsibilities Recommending appropriate AWS architectures for new product features Developing new product features on the backend (Typescript, NodeJS, AWS Services) Evolving existing features to provide enhanced functionality Following test driven development (TDD) approach to development Maintaining existing software Maintaining security and resilience of our systems More ❯

Experienced Back End Typescript/Javascript Developer (AWS, Typescript, NodeJS, GraphQL) - TSDBE25 You will need extensive experience using Typescript and AWS services for this role. We develop the SaaS platform that keeps beer flowing through the UK’s pubs. We run a serverless stack, using the Serverless Framework, AWS Lambda, AWS AppSync and other AWS managed services. We use … significant amount of time supporting your ongoing learning and development goals. Key Duties and Responsibilities Recommending appropriate AWS architectures for new product features Developing new product features on the backend (Typescript, NodeJS, AWS Services) Evolving existing features to provide enhanced functionality Following test driven development (TDD) approach to development Maintaining existing software Maintaining security and resilience of our systems More ❯