1,026 to 1,050 of 1,186 Full Stack Engineer Jobs in London

Senior Backend Engineer (Application & AI Orchestration) Overview We are seeking a deeply technical and security-minded Senior Backend Engineer to join a newly-founded, high-impact AI joint venture. Backed by five of the world's leading telecommunications giants, our mission is to restore trust in global voice communication. Our mission is to restore trust in … This product features an AI agent that screens unknown callers as they ring , provides a live transcript, and allows for mid-call user intervention. As the Senior Backend Engineer for Application & AI Orchestration, your central challenge will be solving the cumulative latency puzzle. You will be singularly responsible for orchestrating a best-in-class, buy, don't build … AI stack (STT ? LLM ? TTS) to deliver a seamless, natural, and responsive voice-to-voice (V2V) experience, targeting a sub-1000ms latency from the moment a caller stops speaking to the moment our AI begins its response. You won't just be integrating APIs; you will be architecting the real-time, high-throughput nervous system of our core More ❯

Process 3 Stage Interview Stage 1 - Discussion with our Hiring Manager (30mins): A chance to talk with our Hiring Manager in more detail about the role, our tech stack and some of the problems we solve every day. Here, we'll dig a bit more into some of your experiences, understand the processes you're familiar with and … in the office to connect, collaborate, and enjoy everything the space has to offer. Remote flexibility for deep focus, work-life balance, and personal productivity. This is a full-time role , working 37.5 hours per week , Monday to Friday. More ❯

Stage Interview Stage 1 - Discussion with our Hiring Manager (30 mins): A chance to talk with our Hiring Manager in more detail about the role, our tech stack and some of the problems we solve every day. Here, we'll dig a bit more into some of your experiences, understand the processes you're familiar with and the … in the office to connect, collaborate, and enjoy everything the space has to offer. Remote flexibility for deep focus, work-life balance, and personal productivity. This is a full-time role , working 37.5 hours per week , Monday to Friday. More ❯

Software Engineer | Front End - React | London - Hybrid Take the next step in your career now, scroll down to read the full role description and make your application. Our client is a forward-thinking global firm that's redefining the future of finance through technology. They are looking for a Front-End React Engineer who … join a dynamic development team, responsible for building the tools, platforms, and applications that empower investment professionals across the business. The team is currently re-architecting its technology stack to become fully cloud-native (AWS), using React for front-end development and Python for backend services. You'll be working in a culture that values craftsmanship, test-driven … Curious, collaborative, and always eager to improve. Someone who values diversity of thought and thrives in an inclusive, forward-thinking workplace. If you are interested in this Software Engineer role, please apply directly with your updated CV or email it to chantelle.smith@sourcegroupinternational.com More ❯

Senior Software Engineer (Python/AWS) Location: London or Manchester Employment Type: Full-time, Permanent About the Role Were looking for a Senior Software Engineer with deep experience in Python and AWS to help design, build, and scale distributed, data-driven Ad-Tech systems. Youll lead the delivery of cross-service features within a … technical capability across the team. Contribute to technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3, DynamoDB, CloudWatch, API Gateway) Data & Messaging: PostgreSQL, Redis, Kafka or SQS CI/CD & Infrastructure: Docker … logging, and performance optimisation. Familiarity with modern security and data-privacy best practices. Excellent communicator who can document and articulate technical trade-offs clearly. Behaviours & Attributes Ownership: Takes full responsibility for systems from design to operation. Pragmatism: Balances long-term architecture with delivery velocity. Influence: Raises standards and mentors others across engineering disciplines. Growth Mindset: Continuously improves processes More ❯

Senior Software Engineer (Python/AWS) Location: London or Manchester Employment Type: Full-time, Permanent About the Role Were looking for a Senior Software Engineer with deep experience in Python and AWS to help design, build, and scale distributed, data-driven Ad-Tech systems. Youll lead the delivery of cross-service features within a … technical capability across the team. Contribute to technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3, DynamoDB, CloudWatch, API Gateway) Data & Messaging: PostgreSQL, Redis, Kafka or SQS CI/CD & Infrastructure: Docker … logging, and performance optimisation. Familiarity with modern security and data-privacy best practices. Excellent communicator who can document and articulate technical trade-offs clearly. Behaviours & Attributes Ownership: Takes full responsibility for systems from design to operation. Pragmatism: Balances long-term architecture with delivery velocity. Influence: Raises standards and mentors others across engineering disciplines. Growth Mindset: Continuously improves processes More ❯

Senior Software Engineer (Python/AWS) 📍 Location: London or Manchester 💼 Employment Type: Full-time, Permanent About the Role We’re looking for a Senior Software Engineer with deep experience in Python and AWS to help design, build, and scale distributed, data-driven Ad-Tech systems. You’ll lead the delivery of cross-service features … technical capability across the team. Contribute to technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3, DynamoDB, CloudWatch, API Gateway) Data & Messaging: PostgreSQL, Redis, Kafka or SQS CI/CD & Infrastructure: Docker … logging, and performance optimisation. Familiarity with modern security and data-privacy best practices. Excellent communicator who can document and articulate technical trade-offs clearly. Behaviours & Attributes Ownership: Takes full responsibility for systems from design to operation. Pragmatism: Balances long-term architecture with delivery velocity. Influence: Raises standards and mentors others across engineering disciplines. Growth Mindset: Continuously improves processes More ❯

Senior Software Engineer (Python/AWS) 📍 Location: London or Manchester 💼 Employment Type: Full-time, Permanent About the Role We’re looking for a Senior Software Engineer with deep experience in Python and AWS to help design, build, and scale distributed, data-driven Ad-Tech systems. You’ll lead the delivery of cross-service features … technical capability across the team. Contribute to technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3, DynamoDB, CloudWatch, API Gateway) Data & Messaging: PostgreSQL, Redis, Kafka or SQS CI/CD & Infrastructure: Docker … logging, and performance optimisation. Familiarity with modern security and data-privacy best practices. Excellent communicator who can document and articulate technical trade-offs clearly. Behaviours & Attributes Ownership: Takes full responsibility for systems from design to operation. Pragmatism: Balances long-term architecture with delivery velocity. Influence: Raises standards and mentors others across engineering disciplines. Growth Mindset: Continuously improves processes More ❯

Senior Software Engineer (Python/AWS) 📍 Location: London or Manchester 💼 Employment Type: Full-time, Permanent About the Role We’re looking for a Senior Software Engineer with deep experience in Python and AWS to help design, build, and scale distributed, data-driven Ad-Tech systems. You’ll lead the delivery of cross-service features … technical capability across the team. Contribute to technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3, DynamoDB, CloudWatch, API Gateway) Data & Messaging: PostgreSQL, Redis, Kafka or SQS CI/CD & Infrastructure: Docker … logging, and performance optimisation. Familiarity with modern security and data-privacy best practices. Excellent communicator who can document and articulate technical trade-offs clearly. Behaviours & Attributes Ownership: Takes full responsibility for systems from design to operation. Pragmatism: Balances long-term architecture with delivery velocity. Influence: Raises standards and mentors others across engineering disciplines. Growth Mindset: Continuously improves processes More ❯

Senior Software Engineer (Python/AWS) 📍 Location: London or Manchester 💼 Employment Type: Full-time, Permanent About the Role We’re looking for a Senior Software Engineer with deep experience in Python and AWS to help design, build, and scale distributed, data-driven Ad-Tech systems. You’ll lead the delivery of cross-service features … technical capability across the team. Contribute to technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3, DynamoDB, CloudWatch, API Gateway) Data & Messaging: PostgreSQL, Redis, Kafka or SQS CI/CD & Infrastructure: Docker … logging, and performance optimisation. Familiarity with modern security and data-privacy best practices. Excellent communicator who can document and articulate technical trade-offs clearly. Behaviours & Attributes Ownership: Takes full responsibility for systems from design to operation. Pragmatism: Balances long-term architecture with delivery velocity. Influence: Raises standards and mentors others across engineering disciplines. Growth Mindset: Continuously improves processes More ❯

Senior Software Engineer (Python/AWS) Any additional information you require for this job can be found in the below text Make sure to read thoroughly, then apply. Location: London or Manchester Employment Type: Full-time, Permanent About the Role We're looking for a Senior Software Engineer with deep experience in Python and … technical capability across the team. Contribute to technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3, DynamoDB, CloudWatch, API Gateway) Data & Messaging: PostgreSQL, Redis, Kafka or SQS CI/CD & Infrastructure: Docker … logging, and performance optimisation. Familiarity with modern security and data-privacy best practices. Excellent communicator who can document and articulate technical trade-offs clearly. Behaviours & Attributes Ownership: Takes full responsibility for systems from design to operation. Pragmatism: Balances long-term architecture with delivery velocity. Influence: Raises standards and mentors others across engineering disciplines. Growth Mindset: Continuously improves processes More ❯

countries who consent to sharing their opinions, motivations, and behaviours. We are feeding the world’s curiosity! Job Description The Opportunity Cint seeks a Cloud Infrastructure (DevOps) Engineer to join our Infrastructure team, reporting to the Infrastructure Engineering Manager. As a Cloud Infrastructure (DevOps) Engineer at Cint, you will be an efficient problem solver, learn on … the next decade. We are compulsive about infrastructure as code (nothing in our platform is created or deployed unless via a code change) and driven to achieve a full end to end continuous deployment pipeline. What We Are Looking For You will be someone that shares our values and ambitions and can bring something to the team that … we can benefit from. It might be prior experience of the journey, architectural insight into cloud native systems, specific technology expertise in parts of our stack or a combination of them all. Whatever it is, you will be the kind of person that is energised by complex challenges, teamwork and problem solving. Qualifications Required qualifications: You have experience More ❯

Contract Java/TypeScript Engineer – Finance & Banking To be considered for an interview, please make sure your application is full in line with the job specs as found below. London - 2 days onsite | 6–12 months | Competitive day rate We're partnering with a leading finance and banking client seeking an experienced Software Engineer to join on a contract basis. You'll be working with a modern tech stack to build scalable, high-performance systems in a complex, data-heavy environment. What you'll need Strong skills in Java, TypeScript, ReactJS, MongoDB, and PostgreSQL. Exposure to Kubernetes, Docker, and Jenkins (CI/CD). Deep understanding of OOP, design patterns … distributed systems. Experience designing APIs and microservices. Knowledge of messaging systems and web technologies. Finance or banking sector experience is a strong plus.If you're a hands-on engineer who thrives in modern cloud environments and enjoys solving complex technical problems, we'd love to hear from you. Apply now or message me for a confidential chat More ❯

You’ll have the opportunity to work on a modern product roadmap, building next-generation platforms and payment systems that are shaping the future of digital lending. Tech Stack Java 11+ Spring Boot AWS Microservices architecture Docker/Kubernetes Kafka (or similar messaging tools) Key Responsibilities Design and develop high-performance, low-latency software components. Contribute across the … full software development lifecycle. Write and maintain clean, testable, scalable code. Manage and enhance CI/CD and development process tooling. Collaborate in agile ceremonies and foster a culture of teamwork. Mentor junior engineers and promote engineering best practice. Work closely with cross-functional teams (Product, QA, DevOps, Data). Champion continuous improvement and innovation. Projects You’ll … core systems to newer Java versions. Enhancing UI frameworks (e.g., Vaadin). Building a new lender platform and modern payment systems. Who You Are A hands-on, pragmatic engineer who thrives in collaborative, fast-moving teams. A self-starter who enjoys autonomy and contributing ideas that drive real change. Experienced in modern Java development with a solid understanding More ❯

You’ll have the opportunity to work on a modern product roadmap, building next-generation platforms and payment systems that are shaping the future of digital lending. Tech Stack Java 11+ Spring Boot AWS Microservices architecture Docker/Kubernetes Kafka (or similar messaging tools) Key Responsibilities Design and develop high-performance, low-latency software components. Contribute across the … full software development lifecycle. Write and maintain clean, testable, scalable code. Manage and enhance CI/CD and development process tooling. Collaborate in agile ceremonies and foster a culture of teamwork. Mentor junior engineers and promote engineering best practice. Work closely with cross-functional teams (Product, QA, DevOps, Data). Champion continuous improvement and innovation. Projects You’ll … core systems to newer Java versions. Enhancing UI frameworks (e.g., Vaadin). Building a new lender platform and modern payment systems. Who You Are A hands-on, pragmatic engineer who thrives in collaborative, fast-moving teams. A self-starter who enjoys autonomy and contributing ideas that drive real change. Experienced in modern Java development with a solid understanding More ❯

Process 3 Stage Interview Stage 1 - Discussion with our Hiring Manager (30mins): A chance to talk with our Hiring Manager in more detail about the role, our tech stack and some of the problems we solve every day. Here, we'll dig a bit more into some of your experiences, understand the processes you're familiar with and … in the office to connect, collaborate, and enjoy everything the space has to offer. Remote flexibility for deep focus, work-life balance, and personal productivity. This is a full-time role , working 37.5 hours per week , Monday to Friday. More ❯

Analytics Engineer | £60-75K | London (5 days/week on-site) | Permanent Bridge the gap between data engineering and analytics A major logistics company is undergoing a full rebuild of its legacy, siloed data estate - and we're hiring an experienced Analytics Engineer to help drive the transformation. You'll join a newly … preferred) Hands-on experience with Azure Databricks and cloud-based data platforms (Snowflake experience also valued) Solid understanding of dimensional modelling, lakehouse/warehouse design, and modern data stack Familiarity with Git, CI/CD, and software engineering best practices Experience with Power BI (or Tableau/Looker) to support self-service analytics Strong communication skills - able to … technical stakeholders Comfortable in fast-moving, agile environments with multiple priorities Why now? Shape the future of data at a company undergoing real transformation Work with modern data stack (Azure Databricks, dbt, Power BI) Build something from scratch with proper investment and backing Make tangible impact on business decisions across the organisation Interested? Apply now. McGregor Boyall is More ❯

Senior Backend Engineer (Application & AI Orchestration) Overview We are seeking a deeply technical and security-minded Senior Backend Engineer to join a newly-founded, high-impact AI joint venture. Backed by five of the world's leading telecommunications giants, our mission is to restore trust in global voice communication. Our mission is to restore trust in … This product features an AI agent that screens unknown callers as they ring , provides a live transcript, and allows for mid-call user intervention. As the Senior Backend Engineer for Application & AI Orchestration, your central challenge will be solving the cumulative latency puzzle. You will be singularly responsible for orchestrating a best-in-class, buy, don't build … AI stack (STT ? LLM ? TTS) to deliver a seamless, natural, and responsive voice-to-voice (V2V) experience, targeting a sub-1000ms latency from the moment a caller stops speaking to the moment our AI begins its response. You won't just be integrating APIs; you will be architecting the real-time, high-throughput nervous system of our core More ❯

Job Description - Azure Engineer (Permanent Role) Role: Azure Engineer Type: Permanent, Full-time (37.5 hours/week) Location: Hybrid - Isle of Man or Manchester (3 days in the office) License: Full UK driver's license required Salary & Benefits: Competitive package + benefits Overview We're looking for talented Azure Engineers to join … and virtualization platforms . Build, migrate, and support Azure and Hyper-V environments. Manage AD, Intune, O365, Exchange, and Azure Infrastructure . Support Azure SaaS applications and Azure Stack HCI deployments. Collaborate effectively with teams across various locations, maintaining strong communication and documentation standards. Identify opportunities to improve and streamline systems and processes . Provide on-site support … Minimum 5 years' experience in IT support or infrastructure roles. Strong hands-on skills in Microsoft Server admin, Azure, and Office 365 . Expertise in Hyper-V , Azure Stack HCI , and virtualization technologies . Knowledge of Azure networking, Azure Defender, Azure Policy , and SQL managed instances . Experience with Dell backup and replication, Dell storage, and VDI solutions More ❯

Job Description - Azure Engineer (Permanent Role) Role: Azure Engineer Type: Permanent, Full-time (37.5 hours/week) Location: Hybrid - Isle of Man or Manchester (3 days in the office) License: Full UK driver's license required Salary & Benefits: Competitive package + benefits Overview We're looking for talented Azure Engineers to join … and virtualization platforms . Build, migrate, and support Azure and Hyper-V environments. Manage AD, Intune, O365, Exchange, and Azure Infrastructure . Support Azure SaaS applications and Azure Stack HCI deployments. Collaborate effectively with teams across various locations, maintaining strong communication and documentation standards. Identify opportunities to improve and streamline systems and processes . Provide on-site support … Minimum 5 years' experience in IT support or infrastructure roles. Strong hands-on skills in Microsoft Server admin, Azure, and Office 365 . Expertise in Hyper-V , Azure Stack HCI , and virtualization technologies . Knowledge of Azure networking, Azure Defender, Azure Policy , and SQL managed instances . Experience with Dell backup and replication, Dell storage, and VDI solutions More ❯

Team: Frontend Location: London (On-site; Liverpool Street) Employment Type: Full-time and Permanent Remuneration: £90–120k Base Salary + Discretionary Bonus + Equity We are a stealth-mode AI laboratory researching and developing Machine Learning models. The founding team consists of Cambridge graduates and former engineers at Microsoft, Bloomberg, Google, AWS, and WhatsApp (Meta). We are … flows; however, you are not required or expected to have background in Machine Learning. This is a senior-level role, and we are looking to hire a software engineer with background in product design, UI/UX design, and with a strong sense of aesthetics. Portfolio We would love to see your recent frontend works! If possible, please … towards best practices, standards, and culture of the company. Work with a graphic designer on the creation of original visual assets. Co-hire your future colleagues. Our tech stack: We use and leverage AWS, Cloudflare, and GitHub as much as possible. The codebase is written in TypeScript, React, Vite, TanStack, and Radix UI. We use Figma for wireframes More ❯

Team: Frontend Location: London (On-site; Liverpool Street) Employment Type: Full-time and Permanent Remuneration: £90–120k Base Salary + Discretionary Bonus + Equity We are a stealth-mode AI laboratory researching and developing Machine Learning models. The founding team consists of Cambridge graduates and former engineers at Microsoft, Bloomberg, Google, AWS, and WhatsApp (Meta). We are … flows; however, you are not required or expected to have background in Machine Learning. This is a senior-level role, and we are looking to hire a software engineer with background in product design, UI/UX design, and with a strong sense of aesthetics. Portfolio We would love to see your recent frontend works! If possible, please … towards best practices, standards, and culture of the company. Work with a graphic designer on the creation of original visual assets. Co-hire your future colleagues. Our tech stack: We use and leverage AWS, Cloudflare, and GitHub as much as possible. The codebase is written in TypeScript, React, Vite, TanStack, and Radix UI. We use Figma for wireframes More ❯

Team: Frontend Location: London (On-site; Liverpool Street) Employment Type: Full-time and Permanent Remuneration: £90–120k Base Salary + Discretionary Bonus + Equity We are a stealth-mode AI laboratory researching and developing Machine Learning models. The founding team consists of Cambridge graduates and former engineers at Microsoft, Bloomberg, Google, AWS, and WhatsApp (Meta). We are … flows; however, you are not required or expected to have background in Machine Learning. This is a senior-level role, and we are looking to hire a software engineer with background in product design, UI/UX design, and with a strong sense of aesthetics. Portfolio We would love to see your recent frontend works! If possible, please … towards best practices, standards, and culture of the company. Work with a graphic designer on the creation of original visual assets. Co-hire your future colleagues. Our tech stack: We use and leverage AWS, Cloudflare, and GitHub as much as possible. The codebase is written in TypeScript, React, Vite, TanStack, and Radix UI. We use Figma for wireframes More ❯

Team: Frontend Location: London (On-site; Liverpool Street) Employment Type: Full-time and Permanent Remuneration: £90–120k Base Salary + Discretionary Bonus + Equity We are a stealth-mode AI laboratory researching and developing Machine Learning models. The founding team consists of Cambridge graduates and former engineers at Microsoft, Bloomberg, Google, AWS, and WhatsApp (Meta). We are … flows; however, you are not required or expected to have background in Machine Learning. This is a senior-level role, and we are looking to hire a software engineer with background in product design, UI/UX design, and with a strong sense of aesthetics. Portfolio We would love to see your recent frontend works! If possible, please … towards best practices, standards, and culture of the company. Work with a graphic designer on the creation of original visual assets. Co-hire your future colleagues. Our tech stack: We use and leverage AWS, Cloudflare, and GitHub as much as possible. The codebase is written in TypeScript, React, Vite, TanStack, and Radix UI. We use Figma for wireframes More ❯

Backend Software Engineer/Developer (C# .Net SQL) *London onsite* to £180k+ Are you a technologist Backend Software Engineer with a record of academic achievement? You could be progressing your career working on complex and challenging systems at a Hedge Fund with over $17 billion under management. As a Backend Software Engineer you'll … collaborate with a team of highly intelligent technologists and finance professionals to develop algorithmic trading systems working with a modern tech stack, with opportunities for technical ownership from day one. You'll partner with Quant teams to help architect valuation, risk and pricing systems, delivering massively scalable, high performance streaming compute operations. You'll be equipped with all … team in fantastic London (Soho) based offices that offer a wide range of facilities including nutritionally balance breakfast, lunch and all day snacks. Please note this role is full-time office based (Monday to Friday). About you: You have an outstanding record of academic achievement - minimum 2.1 in a STEM discipline from a top tier university (i.e. More ❯