426 to 450 of 499 Full Stack Engineer Jobs in London

expertise in leveraging AI. The team includes data strategists, consultants, data scientists and analysts that work alongside DEPT teams around the world across different services - from commerce, to full-funnel media, content engineering to internal operations. You will be solving some of the hardest and most challenging problems facing some of the best loved brands in the world … analytics, and AI to deliver exceptional data-driven solutions that build lasting relationships with our clients like Footlocker, Nikon, Rituals, and Philips. ROLE OVERVIEW As a Senior Data Engineer you're supporting our clients in architectural design, implementation and researching of the more complex data integrations setups. You also work on providing other data consumers like data scientists … the needed data for their data models and watchdog continuous delivery on projects, periodically reviewing the current tech stack decisions and challenging the components from every aspect - operational, security and cost aspect. JOB PURPOSE As part of the EMEA Data craft team, you will be responsible for delivering technical excellence on complex client projects. Our Data Engineers are More ❯

We work closely with stakeholders across the business to expand the understanding and impact of machine learning and AI throughout Trainline. We are looking for a Machine Learning Engineer to join the Product ML team to help shape the future of train travel. You will build highly innovative AI and ML products working alongside engineers, scientists and product … to work with fellow ML enthusiasts on large-scale production systems, delivering highly impactful products that make a difference to our millions of users. As a Machine Learning Engineer at Trainline you will Work in cross-functional teams combining data scientists, software, data and machine learning engineers, and product managers Design and deliver machine learning systems at scale … that drive measurable impact for our business Own the full end to end machine learning delivery lifecycle including data exploration, feature engineering, model selection and tuning, offline and online evaluation, deployments and maintenance Partner with stakeholders to propose innovative data products that leverage Trainline's extensive datasets and state of the art algorithms Create the tools, frameworks and More ❯

We work closely with stakeholders across the business to expand the understanding and impact of machine learning and AI throughout Trainline. We are looking for a Machine Learning Engineer to join the Product ML team to help shape the future of train travel. You will build highly innovative AI and ML products working alongside engineers, scientists and product … to work with fellow ML enthusiasts on large-scale production systems, delivering highly impactful products that make a difference to our millions of users. As a Machine Learning Engineer at Trainline you will Work in cross-functional teams combining data scientists, software, data and machine learning engineers, and product managers Design and deliver NLP based machine learning systems … at scale that drive measurable impact for our business Own the full end to end machine learning delivery lifecycle including data exploration, feature engineering, model selection and tuning, offline and online evaluation, deployments and maintenance Partner with stakeholders to propose innovative data products that leverage Trainline's extensive datasets and state of the art algorithms Create the tools More ❯

AI agents that transform how they operate at scale. You'll also partner with the most cutting-edge startups in London, embedding AI agents across their entire business stack to drive innovation and efficiency. Build the future of the platform: Your direct work with customers will guide the evolution of Sierra's core platform. You'll surface unmet … clear, direct, and persuasive across technical and non-technical audiences Even better Experience building or deploying AI/LLM systems in production Have been a founder or founding engineer - you know what it means to balance craft, ownership, and speed Familiarity with tools that power today's AI agents: eval frameworks, agent tooling, RAG pipelines, and prompt engineering … respect each other and celebrate each other's personal and professional achievements. What we offer We want our benefits to reflect our values and offer the following to full-time employees: Flexible (Unlimited) Paid Time Off Medical, Dental, and Vision benefits for you and your family Life Insurance and Disability Benefits Retirement Plan (e.g., 401K, pension) with Sierra More ❯

across the business, we are in this together! The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: From building things, designing, discovering, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best … the office a minimum of 1 day per week. Our Engineering Environment Starling engineers are excited about helping us deliver new features, regardless of what their primary tech stack may be. Hear from the team in our latest blogs or our case studies with Women in Tech . We are looking for engineers at all levels to join … are looking for people who want to work on building the tooling that is used by our engineers on a daily basis. The main part of our Tech Stack is listed below, we don't ask that you have experience in all of this, but if you do, that's great! Java, which makes up the majority of More ❯

you're ready to see your impact and unlock incredible career growth opportunities, join us, and build real world value. THE WORK: We are looking for a Software Engineer passionate about solving ambitious problems and working directly with Ripple Trading and Markets in the cross-border payments space. We are passionate about the growth of our engineers and … other partners. Continuing to support and complement Ripple's Payments, Custody and Stablecoin business units WHAT YOU'LL DO: Be an ambitious builder, working up and down the stack, mixing software engineering, data engineering, and distributed systems knowledge to build modern enterprise payment applications. Build reliable, high-throughput, low-latency microservices to power a diverse range of trading … Value impact-driven experimentation of new patterns and tooling Approach of continuous learning and improvement, for yourself and the team Other common names for this role: Front Office Engineer, Java Developer WHO WE ARE: Do Your Best Work The opportunity to build in a fast-paced start-up environment with experienced industry leaders A learning environment where you More ❯

GCP, and their services for scalable, resilient systems. Expertise in containerization technologies (e.g., Docker, Kubernetes) and orchestration tools. Knowledge of monitoring and logging tools (e.g., Prometheus, Grafana, ELK Stack) for maintaining system health and performance. Ability to lead and mentor junior engineers in reliability and system optimization best practices. Excellent communication skills for effective collaboration with cross-functional … stakeholders. Proactive in identifying and mitigating potential system failures and performance issues. Preferred skills & experience: Software engineering expertise. Terraform. Python. Kubernetes. Scala. AWS/GCP. Benefits & perks (UK full-time employees): Generous PTO and company holidays. Comprehensive medical and dental insurance. Paid parental leave for all parents (12 weeks). Fertility and family planning support. Early-detection cancer More ❯

Data Engineering London, UK Hybrid Senior Data Engineer Evergreen Passive Opening - We're always interested in talking to strong candidates, even if we're not hiring for this role right this second. Evergreen Passive Opening We're always interested in talking to strong candidates, even if we're not hiring for this role right this second. We are … whom are involved in creating the world's most innovative products. See our platform in action! About the role: We're looking for a hands-on Senior Data Engineer to own the full data lifecycle - from pipelines and transformations to backend tooling and BI. This role is perfect for someone who thrives in fast-paced environments … operates comfortably across both engineering and analytics, and is excited about building internal tools that directly improve product and customer experiences. You'll be working with a mature stack (Python, BigQuery, dbt, FastAPI, Metabase), and your day-to-day will include both writing production-level code and making data actually useful for decision-makers. Main responsibilities: Build, maintain More ❯

Javascript Front End Developer ?" Central London JavaScript Engineer required to join a fast growing company and shape the future of payments cross-platform and cross-device? Evolving in an agile and collaborative environment, you will be part of a multidisciplinary and excellence-driven team and bring your solid native JavaScript skills and perspective to all projects that you … and stand-ups Mentor Junior Team members Skills & Experience Excellent JavaScript (Vanilla) with code patterns Good knowledge of some JS frameworks (e.g. Angular, Backbone) Complete understanding of the full web stack Solid knowledge of CSS pre-processors (SASS, LESS) and HTML5 Knowledge of some server side languages (e.g. PHP, NodeJS) Knowledge of some client/server More ❯

Azure Lead Software Security Engineer with Development Background, DevSecOps, Mainly Remote Software Security Engineer Lead is required to work for a fast-growing and exciting company based in Central London. However, this will mainly be remote. Please read in full before applying We need someone with a Microsoft tech-stack background who More ❯

a product people genuinely love, and the spot on the Sunday Times Fastest Growing Companies list, we're scaling at pace. Now, we're looking for an Analytics Engineer to turn our growing data stack into sharp, actionable insight, driving smarter decisions across Product, Growth, Ops and beyond. About the Role We're looking for a … hands-on Analytics Engineer to turn data into Simmer's growth engine. As our hands-on Analytics Engineer, you'll bring structure, clarity and confidence to decision-making, building the modern data stack that powers scale. You'll lead our transition from an existing Azure SQL setup to a more scalable, robust architecture, designing … slowly changing dimensions etc.) Track record of collaborating across functions and delivering impact Bias for shipping - you value progress over perfection High drive, high impact, high standards: take full ownership and go after what matters & the nice to haves: Experience in high-growth DTC, subscription, or food businesses Comfort with event-based tracking (Segment, GA4, Mixpanel) Basic analytics More ❯

educational apps for children ages 2 to 7. Our products are among the top 15 in the preschool apps category globally. We're looking for a skilled Data Engineer to design and maintain robust data infrastructure and pipelines, driving data accessibility and reliability across our platform. Working format: full-time, remote. Schedule: Monday to Friday (the … long-term goals: Architect and evolve the analytical data delivery pipeline into a standalone, scalable service. What we expect from you: 4+ years of experience as a Data Engineer, including 1+ year at a Senior level. Deep knowledge of Airflow : DAGs, custom operators, and monitoring. Strong command of PostgreSQL databases; familiarity with the AWS stack (S3 … and understanding the limitations and capabilities of technologies . Understanding of development practices (CI/CD, DevOps) and the ability to solve infrastructure-related challenges within the Data Engineer's scope. Business fluent Russian and English. Would be a plus: Experience with tools such as Firebase Analytics, Amplitude, Adjust, AppsFlyer , or similar SDKs/platforms. Understanding of event More ❯

The role We're looking for senior software engineers to join our Web App engineering team. You'll have the opportunity to lead implementations across our entire product stack, with a focus on your area(s) of choice across frontend and backend. The Web App engineering team is dedicated to building Ravio's customer-facing web product, which … a data + SaaS platform. Our collective expertise spans various domains, with members specialising in both frontend and backend development, with every team member contributing across the entire stack to some degree. You'll be responsible for end-to-end development of new modules and features, working directly with our technical cofounders. We expect you to contribute to … every phase of the development cycle, from planning and architecting, to implementation and testing, to code review and maintenance. Requirements 4+ years experience as a software engineer Ability to make senior level contributions writing in TypeScript React PostgreSQL Bonus points for experience in high velocity and technically challenging roles Our tech stack Frontend: React Typescript GraphQL More ❯

you're interested in more details about what it's like working at Apollo, you can find more information here . THE OPPORTUNITY We're seeking a Software Engineer who will enhance our capability to evaluate Large Language Models (LLMs) through building critical tools and libraries for our Evals team. Your work will directly impact our mission to … of more of these: - Led the development of a successful software tool or product over an extended period (e.g. 1 year or more) - Started and built the tech stack for a company - Worked your way up in a large organisation, repeatedly gaining more responsibility and influencing a large part of the codebase - Authored and/or maintained a … Hofstätter, and Axel Højmark . MariusHobbhahn manages and advises the team, though team members lead individual projects. You would work closely with Rusheb and Andrei, who are the full-time software engineers on the evals team, but you would also interact a lot with everyone else. You can find our full team here . EVALS TEAM More ❯

are requested tens of millions of times per day as well as internal tools that keep our community safe and our business efficient. We run a modern containerised stack in AWS using a mixture of database technologies (MySQL, DynamoDB, Redis, Redshift, Elasticsearch) to serve different workloads. Our architecture is event-driven and we're bringing increasingly more machine … fun. Regular socials - Mini golf, hikes, super competitive Catan nights - we've done it all. Maybe you'll be at the next social? Generous Holiday/PTO - All full-time members get at least 33 days of holiday, regardless of where they live. More ❯

are requested tens of millions of times per day as well as internal tools that keep our community safe and our business efficient. We run a modern containerised stack in AWS using a mixture of database technologies (MySQL, DynamoDB, Redis, Redshift, Elasticsearch) to serve different workloads. Our architecture is event-driven and we're bringing increasingly more machine … fun. Regular socials - Mini golf, hikes, super competitive Catan nights - we've done it all. Maybe you'll be at the next social? Generous Holiday/PTO - All full-time members get at least 33 days of holiday, regardless of where they live. More ❯

flexible working arrangements - we encourage you to discuss your needs with the hiring manager if you are offered the role. We are looking for a talented, product-orientated engineer with proven delivery experience to join our team building the future of critical government AI-powered products. In this role you will work closely with researchers, engineers, designers and … the best of their ability at all times, ensuring continued investment in the project and in their own skills. Planning, sequencing and delivering technical work across the entire stack, from infrastructure (supported by the i.AI infrastructure team) to CI/CD pipelines, databases, backend frameworks, APIs and user interfaces, with appropriate levels of static analysis and automated testing … including Tax Free Childcare. Determine your eligibility at If successful and transferring from another Government Department a criminal record check may be carried out. . click apply for full job details More ❯

.NET Developer, C#, WPF - Mobile Telecommunications - London (Tech stack: .NET Developer, .NET 9, C#, WPF, Azure SQL, MVVM, Prism, TDD, Agile, Programmer, Engineer, Architect, .NET Developer) Established in the early 1990s and listed on the London Stock Exchange our client is an instantly recognizable brand within the mobile telecommunications arena. They are widely recognized as innovators … within the market and were the first company to deliver phone trainers, full length music player downloads, commercial TV and mobile broadband to its customers. They are now looking to extend their brand beyond mobile with the launch of several new products. As such they are looking to recruit 6 .NET Developer to help design and develop the More ❯

and cloud-native architectures across Azure, AWS, and Google Cloud Leading platform engineering squads using DevSecOps, Kubernetes, and automation tooling Enabling edge and private cloud capabilities (e.g., Azure Stack, AWS Outposts) Implementing observability and governance tooling to support modern operations Supporting Agile and product-based delivery using SRE, CI/CD, and Infrastructure as Code Advising clients on … infrastructure cost optimisation Deep storage, networking, or resilience design experience What You’ll Receive Salary: £85,000–£110,000 , based on experience Flexible hybrid/remote working model Full access to industry-leading technical learning platforms Clear career progression pathways — architect your future as a Chief Architect or Distinguished Engineer Paid volunteering, inclusive networks, and a More ❯

and cloud-native architectures across Azure, AWS, and Google Cloud Leading platform engineering squads using DevSecOps, Kubernetes, and automation tooling Enabling edge and private cloud capabilities (e.g., Azure Stack, AWS Outposts) Implementing observability and governance tooling to support modern operations Supporting Agile and product-based delivery using SRE, CI/CD, and Infrastructure as Code Advising clients on … infrastructure cost optimisation Deep storage, networking, or resilience design experience What You’ll Receive Salary: £85,000–£110,000 , based on experience Flexible hybrid/remote working model Full access to industry-leading technical learning platforms Clear career progression pathways — architect your future as a Chief Architect or Distinguished Engineer Paid volunteering, inclusive networks, and a More ❯

Cambridge, UK Full-time Permanent Hybrid We will also consider part-time applications for this role. Please indicate your preferred working schedule in your cover letter. About us Riverlane's mission is to make quantum computing useful, sooner. From advances in material science to complex chemistry simulation for drug design and discovery, quantum computers will help solve some … of the world's most important challenges. Riverlane is building the quantum error correction stack, Deltaflow, to make this happen. It's a complex problem that requires a range of skills, talent and passion. We recently raised $75M inSeries C funding to accelerate our cutting-edge R&D in quantum error correction (QEC), and are partnering with many … to solve one of the hardest problems in quantum computing: quantum error correction (QEC). Due to continued growth, we have an excellent opportunity for a System Software Engineer to help us test, build and integrate Deltaflow (the world's first QEC stack) into our external partners' hardware. This exciting and cutting-edge work will involve More ❯

Founding Engineer (Mobile) - Stealth Start-up - Future Unicorn Up to £120,000 plus shares Hybrid working - office in London CC React Native or Swift & TypeScript We're currently partnered with an ambitious start-up who are set for huge growth and they are now looking for a Founding Engineer to join them as they continue to … their engineering culture and implementing best practices What are they looking for: Previous experience of working within a start-up environment where you've been involved in the full life-cycle of the product would be advantageous Experience in developing intuitive, responsive and accessible mobile frontends Launching 0-1 projects either in a commercial role or on personal … this Customer and product mindset - they are driven but their consumers and how they can get the best experience and value from their platform Whilst their current tech stack is React Native, Expo, TypeScript - they are flexible and actively exploring alternative frameworks to build on the right stack whether that's in Flutter, Swift or Lynx More ❯

Software Development Engineer, EC2 VPC, NEAT Engineering Safety Job ID: Amazon Web Services, Inc. Do you want to shape the future of virtualized (SDN) networking in one of the world's biggest public clouds? The Amazon Elastic Compute Cloud (EC2) VPC Dataplane team owns the packet pipeline that runs right beneath all our customer's EC2 VPC instances … the cloud, including delivering features not possible on bare metal leading to true Software Defined Networking (SDN). We continue to grow, and are looking for a SW Engineer to help build our next generation of automation. In this role, you will build and improve the end-to-end EC2 SDN feature development, validation and release cycle through … And you'll experience an inclusive culture that welcomes bold ideas and empowers you to own them to completion. Key job responsibilities Your responsibilities will include: Being an engineer on a small team, mentoring junior engineers, ensuring the right development practices are followed. Being very hands-on; working with an engineering team to manage the day-to-day More ❯

Senior Network Security Engineer – 3-Month Initial Contract (Extension likely) Location: Onsite in West Drayton/Hayes, UK (5 Days per Week) Start: ASAP IR35: Outside IR35 Security Clearance: Will be sponsored for eligible candidates We’re not looking for just another engineer - we’re after a seasoned Network Security expert who’s ready to step … core. If you thrive in a fast-moving, hands-on environment and want to work with cutting-edge tech, this contract is built for you. Senior Network Security Engineer The Tech Stack You’ll Own: Fortinet SD-WAN – Core to the network transformation Fortinet Firewalls – Design and deployment Cisco Nexus – High-performance switching environments Cisco Wi … Fi/LAN Routing & Switching – Solid fundamentals essential Firewall & Security Architecture – Design, configure, secure Configuration Mastery – You’ll write and load full network configs What Makes This Role Different? Security Clearance provided – We’ll sponsor you if eligible. Outside IR35 – Work with freedom and flexibility. Real Possibility of Extension – This is just phase one of a wider programme. More ❯

Microsoft Azure Lead Software Security Engineer with Development Background, .NET, Microsoft Stack Developer, DevSecOps, CISSP, CEH, CSSLP, Mainly Remote Software Security Engineer Lead is required to work for a fast-growing and exciting company based in Central London. However, this will mainly be remote and the expectation is to go into the office circa … twice a week. Please read in full before applying... We need someone with a Microsoft tech-stack background who has experience as a Azure DevSecOps Consultant or even a good old fashioned Unix/Linux Systems Administrator. We want someone with a development/some form of coding background who has blossomed into Software Security/ More ❯