326 to 350 of 413 Senior Software Engineer Jobs in London

Senior Software Engineer London (in person) At Etleap, we’re redefining how data teams build and manage data pipelines. Our no-code/low-code ETL platform allows seamless integration of data from any source — whether databases, applications, or files — into lakehouses like Snowflake, Databricks, and Redshift. With pipelines that just work and features like advanced data … transformation using dbt Core and end-to-end pipeline observability, we’re focused on making robust data pipelines accessible to everyone. We are looking to add senior engineers to our core engineering team to build the infrastructure that modern data teams depend on to create and operate their analytics infrastructure! It shouldn’t take a CS degree to build … to the performance and robustness of distributed systems infrastructure Come up with novel ideas on how to make complex data technology user-friendly, and then turn those ideas into software Collaborate on the design and development of the next generation of ETL/ELT infrastructure that prioritizes user-friendliness and flexibility What we want to see in you: 5+ More ❯

Job Description Role : Senior Full Stack Engineer (FE or BE focussed) Salary range : 90-170k (+equity) Location : x3 days pw onsite in Central London (Mon/Wed/Fri) Tech stack includes : React, Typescript, Tailwind, Python & Postgres. Current team size: x6 engineers Senior Full Stack Engineer required on a Permanent basis for an early stage … Edtech startup that is creating e-learning tools using AI. 2.5 year runway, grew 11x last year, using gamification to help learning! Whilst it's titled as a Senior role, they're looking for very experienced engineers who've been technical co founders/founding engineers that have built and scaled businesses. Essentials for this role: 7+ years experience More ❯

Senior Software Engineer - Payment Processing Platform Senior Software Engineer - Payment Processing Platform Get AI-powered advice on this job and more exclusive features. Company Description Wise is a global technology company, building the best way to move and manage the world’s money. Company Description Wise is a global technology company, building the best … it's like to work at Wise visit Wise.Jobs. Keep up to date with life at Wise by following us on LinkedIn and Instagram. Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Engineering and Information Technology Referrals increase your chances of interviewing at Wise by 2x Sign in to set … job alerts for “Senior Software Engineer” roles. London, England, United Kingdom 4 days ago London, England, United Kingdom 4 weeks ago London, England, United Kingdom 3 days ago Lead Software Engineer, Legal & Compliance London, England, United Kingdom 1 week ago Codified Controls - Senior Full-Stack Software Engineer - VP London, England, United Kingdom More ❯

Social network you want to login/join with: Senior Software Engineer - Python/MongoDB, London Client: Canonical Location: London, United Kingdom Job Category: Other EU work permit required: Yes Job Reference: 1342677a6a2b Job Views: 16 Posted: 22.06.2025 Expiry Date: 06.08.2025 Job Description: We're enabling high-performing, rock-solid MongoDB deployments on any cloud or platform … a key contributor with a significant impact on the product and the broader ecosystem. Who you are You love technology and working with brilliant people. You are an accomplished senior Python programmer who enjoys challenging projects in mission-critical environments. You have experience operating and managing MongoDB clusters. You are experienced with modern infrastructure deployment automation or traditional Linux … systems administration, operations, and package management. You are passionate about quality and automatic testing. Work with industry pioneers in open source alongside intelligent engineers at all levels from engineer to CTO and CEO. At Canonical, we've cultivated a remote-first culture since our inception. Enjoy a competitive salary, the flexibility to work and live where you wish, and More ❯

Senior Mobile Software Engineer - FinTech (Fully Remote, 1 Day/Month in London) Location: Fully Remote (UK-based), with 1 day per month in our London office (travel at own expense) Salary: Up to £80,000 per annum Bonus: 12.5% of salary per year Pension: 10% employer contribution Holiday: 30 days per annum About the Role We … are a dynamic fintech company looking for an experienced Senior Mobile Software Engineer to join our growing team. You'll have the opportunity to shape the future of our mobile products, working on innovative solutions that empower our customers and drive business success. This is a fully remote position, with just one day per month required in More ❯

The Role Step into a pivotal role where your expertise and leadership drive technical innovation and excellence. As a Senior Engineer, you will be instrumental in shaping the technical landscape, mentoring team members, and delivering high-quality solutions. Be a technical authority : Set high standards for your domain and lead by example. Mentor and guide : Empower junior engineers … clean code, and a streamlined workflow for all engineers. DevOps mindset : Take full ownership of your domain, from design to deployment and monitoring. Your Story Are you a seasoned engineer with a passion for building impactful and maintainable software? Do you excel in a collaborative environment and enjoy mentoring others? If so, the Senior Engineer role … is the perfect fit for you! You have 8+ years of experience delivering complex software solutions in fast-paced environments. You're skilled in areas critical to our platform (e.g., database optimization, service frameworks, continuous delivery). You understand modern development methodologies ( TDD, Pair Programming, Continuous Deployment ) and can advocate for them within your team. You can guide technical More ❯

Senior Backend Engineer London - Hybrid (1x day a week) Salary: Up to £80k DOE About Us Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for … a results driven and growth focussed Senior engineer looking to start an ambitious business. The Role We're looking for a Backend Engineer with strong Python skills and experience building scalable cloud-based microservices, ideally with FastAPI. You'll work in a cross-functional team delivering reliable, performant services that power our core insurance platform. What You More ❯

fibre internet services, recognising their crucial importance to modern businesses. Join them in this exciting journey as they continue to grow and maintain their industry-leading status. As a Senior Software Engineer, you'll be responsible for providing guidance and mentorship to less experienced team members, upholding high standards in user experience and coding practices, and collaborating … closely with the Lead Product Engineer to architect and implement new product features. Your expertise in NodeJS, Typescript, Prisma, GraphQL, and relational databases will be essential in designing and developing robust APIs that align with their business goals. Join a company, where they prioritise your well-being and offer a comprehensive range of benefits, including an Employee Share Plan More ❯

fibre internet services, recognising their crucial importance to modern businesses. Join them in this exciting journey as they continue to grow and maintain their industry-leading status. As a Senior Software Engineer, you'll be responsible for providing guidance and mentorship to less experienced team members, upholding high standards in user experience and coding practices, and collaborating … closely with the Lead Product Engineer to architect and implement new product features. Your expertise in NodeJS, Typescript, Prisma, GraphQL, and relational databases will be essential in designing and developing robust APIs that align with their business goals. Join a company, where they prioritise your well-being and offer a comprehensive range of benefits, including an Employee Share Plan More ❯

reimagine what is possible in research. We do impactful work with amazing organisations ranging from well-known brands to life-changing non-profits. We are now looking for a Senior Software Engineer with extensive experience delivering high-quality code quickly, breaking down complex technical challenges into manageable tasks, and proactively unblocking team members to keep progress on … track. What you'll do As a Senior Software Engineer working on our agentic AI product, you will: Deliver High-Standard Code : Develop clean, efficient, and maintainable code that meets the highest standards and prioritises simplicity over cleverness. Unblock Team Members : Identify blockers in the development process, proactively assist and guide fellow team members, and resolve technical … Challenges : Break down complex, high-level product requirements into smaller, manageable technical deliverables. You will manage the breakdown of epics into tasks to ensure clear progress and communication. Provide Senior-Level Insight & Pragmatism : Bring your experience and seniority to the table by making well-considered decisions that balance trade-offs. Ensure that decisions, whether technical or architectural, are clearly More ❯

reimagine what is possible in research. We do impactful work with amazing organisations ranging from well-known brands to life-changing non-profits. We are now looking for an Senior Software Engineer with extensive experience delivering high-quality code quickly, breaking down complex technical challenges into manageable tasks, and proactively unblocking team members to keep progress on … track. Join us! What you'll do As a Senior Software Engineer working on our agentic AI product, you will: Deliver High-Standard Code : Develop clean, efficient, and maintainable code that meets the highest standards and prioritises simplicity over cleverness. Unblock Team Members : Identify blockers in the development process, proactively assist and guide fellow team members, and … Challenges : Break down complex, high-level product requirements into smaller, manageable technical deliverables. You will manage the breakdown of epics into tasks to ensure clear progress and communication. Provide Senior-Level Insight & Pragmatism : Bring your experience and seniority to the table by making well-considered decisions that balance trade-offs. Ensure that decisions, whether technical or architectural, are clearly More ❯

This role participates in the technical delivery of projects to build our solution and products, and operate the services that they depend on. You'll work on our cloud software applications that work in conjunction with our large fleet of remotely managed devices. As a Senior level Software Engineer you'll be working closely with more … experienced colleagues with exposure to the full product & service lifecycle from specification & architecture through to release & operation. You'll work with the team to deliver high quality software and solutions which provide an acceptable service uptime to our clients, and you'll be closely involved with real world applications with a large user base, where necessary helping out to … investigate and fix issues that occur with our production software - because we believe that operational experience is a great way to learn how to build systems that are easy to operate. You'll work in our Product & Engineering team of 10 and participate in the definition of our solution architecture, then take responsibility for applications and major infrastructure components More ❯

About Faculty At Faculty, we transform organisational performance through safe, impactful and human-centric AI. With more than a decade of experience, we provide over 350 global customers with software, bespoke AI consultancy , and Fellows from our award-winning Fellowship programme . Our expert team brings together leaders from across government, academia and global tech giants to solve the … work with, and learn from, some of the brilliant minds who are bringing Frontier AI to the frontlines of the world. About the role We're looking for a Senior Software Engineer to join our cutting-edge product, Frontier, working within the Platform Core product squad. In this role, you'll be immersed in hands-on work … AI and machine learning, revolutionising how businesses thrive utilising Decision Intelligence. What you will be doing Collaborating with other Engineers in the team to develop and implement AI-driven software solutions. Conducting code reviews & pair programming with junior members of the team, directly impacting customer projects and outcomes. Getting the opportunity to work in diverse domains, expanding your industry More ❯

reimagine what is possible in research. We do impactful work with amazing organisations ranging from well-known brands to life-changing non-profits. We are now looking for an Senior Software Engineer with extensive experience delivering high-quality code quickly, breaking down complex technical challenges into manageable tasks, and proactively unblocking team members to keep progress on … track. Join us! What you'll do As a Senior Software Engineer working on our agentic AI product, you will: Deliver High-Standard Code : Develop clean, efficient, and maintainable code that meets the highest standards and prioritises simplicity over cleverness. Unblock Team Members : Identify blockers in the development process, proactively assist and guide fellow team members, and … Challenges : Break down complex, high-level product requirements into smaller, manageable technical deliverables. You will manage the breakdown of epics into tasks to ensure clear progress and communication. Provide Senior-Level Insight & Pragmatism : Bring your experience and seniority to the table by making well-considered decisions that balance trade-offs. Ensure that decisions, whether technical or architectural, are clearly More ❯

Highlights: Senior/Lead Engineer, deep involvement in product (we don't have PMs), work directly with the founders of a series A food tech company, significant stock options, build and manage a world class engineering team, full-autonomy on technical roadmap, best ideas win: no politics, just build, leverage AI across all areas of the company. About … re 30 people and we're a profitable business, our engineering team still young and small. You will be joining a team of three (including you). One Junior Engineer and one incredible AI/Data Science Engineer. As our first Senior/Lead Engineer, you will be an integral part of the management team, working side … quality control (models + Mechanical Turk) AI & Gamified kitchen management Anomaly detection Direct to consumer sales Further tools/apps for quality control data collection (cameras, mystery diner, etc.) Software engineer who is strong on data engineering and integrations Architect profile: ability to define and build stable underlying architecture that scale Desire to get involved with product, drive More ❯

Highlights: Senior/Lead Engineer, deep involvement in product (we don't have PMs), work directly with the founders of a series A food tech company, significant stock options, build and manage a world class engineering team, full-autonomy on technical roadmap, best ideas win: no politics, just build, leverage AI across all areas of the company. About … re 30 people and we're a profitable business, our engineering team still young and small. You will be joining a team of three (including you). One Junior Engineer and one incredible AI/Data Science Engineer. As our first Senior/Lead Engineer, you will be an integral part of the management team, working side … quality control (models + Mechanical Turk) AI & Gamified kitchen management Anomaly detection Direct to consumer sales Further tools/apps for quality control data collection (cameras, mystery diner, etc.) Software engineer who is strong on data engineering and integrations Architect profile: ability to define and build stable underlying architecture that scale Desire to get involved with product, drive More ❯

Job Description Senior & Staff Software Engineers – TypeScript, AWS, Serverless | Backed by the UK’s Top Subscription Business We’re hiring Senior and Staff Engineers for one of the most exciting start-ups in the UK tech scene—backed by the UK’s most successful subscription company (yes, the one from Dragons’ Den that became the most profitable More ❯

small team. We're scaling fast (UK international soon) and bottlenecked by automation. We have more customer demand than we can handle with our current technology. As our first senior/lead product engineer, you will be an integral part of our rapidly growing startup. You'll have the opportunity to build beyond the limitations typically found in … dashboards for kitchens & food brands Greenfield: AI food quality control (models + Mechanical Turk) Greenfield: AI & Gamified kitchen management Greenfield: Anomaly detection Greenfield: Performance marketing optimisation (multi-armed bandits) Software engineer who is strong on data engineering and integrations Architect profile: ability to define and build stable underlying architecture that scale Can leverage AI-native tools/Cursor More ❯

and London, we bring together chemists, physicists, engineers, and machine learning experts to push the boundaries of what's possible in early-stage drug discovery. The Role As a Senior Software Engineer in the team building our product, you will support the daily activities of scientists (physics, ML, deep learning) who produce predictors and prediction flows. You … paced and collaborative environment. What you'll do Build and scale the engine powering data management and scientific computation Design modular, maintainable, and scalable components in Python using best software engineering practices Ensure robustness, observability, and performance of the system Collaborate with ML scientists and chemoinformaticians to integrate scientific logic into production-grade software Contribute to code reviews … and drive continuous platform improvements Ensure the product is stable and operational, including supporting production environments What we're looking for 6+ years of experience in backend or scientific software development Strong Python programming skills Solid understanding of system design, API development, and scalable infrastructure Experience with ML or scientific computing pipelines is a plus Strong sense of ownership More ❯

seed round and already pulling in £3m ARR—and they’re only getting started. They’re tackling some of the biggest environmental challenges out there, and they need a Senior Software Engineer who’s excited to build solutions that make a tangible difference. If that sounds like you, keep reading. What You’ll Do Architect & Build: You … deployment, you’ll have full responsibility for your projects and the outcomes they drive. What They’re Looking For Technical Excellence: You’ve got a strong foundation in modern software development—whether it’s microservices, front-end frameworks, or data pipelines. (Their stack is Python, React, AWS) Passion for Impact: They’re all about real-world solutions, so if … I’d love to share more details and help you explore if this could be your next big move in Climate Tech! About the job Contract Type: Permanent Focus: Software Development/Engineering Workplace Type: Hybrid Experience Level: Associate Location: London Salary: £100,000 - £130,000 per annum + TBA (Circa 50% of base) #J-18808-Ljbffr More ❯

how things are currently done, passion for technology, passion for adventure, passion to be in the heart of something great. Apart from that, you are an experienced, London-based software engineer who perfectly knows how game engines work and, specifically, who knows how Unity works. You are also not afraid to dig down and hack it if necessary. … Additionally, you have experience or knowledge of how to deliver a product in Unity that is not necessarily a game. You have experience working with software in general and feel confident leading a project. You've also likely had some experience with character animation, and maybe you've experimented with UE4. You may also have played around with machine … Expert-level programming experience in C#, Python, and other applicable programming languages. Deep knowledge of Unity engine, being able to implement clean APIs interacting with game logic and making software applications. Experience in the development of Unity tools, 3rd party plugins, services or SDKs in Unity. Self-driven/have a growth mindset: Ability to collaborate, but also take More ❯

pretending to be from Contentsquare. We will never ask for money or contact you through random texts. For more information, visit our careers blog. We're looking for a Senior Software Engineer (Applied AI) to join one of several exciting product initiatives currently in progress that leverage the latest in AI, particularly using Large Language Models (LLMs … to answer their questions simply by asking them. We are moving rapidly to leverage LLMs to reduce time to insight, make setup easier, and much more. As our next Senior Software Engineer (Applied AI), you will be focused on product development, with a side of early product iteration. For example, we expect engineers to participate in user More ❯

assets. To learn more about CyberArk, visit our CyberArk blogs or follow us on X, LinkedIn or Facebook. Job Description We are looking for an experienced, curious and driven software engineer to join the founding team of an exciting new area of our business. Workload Identity presents a huge opportunity to change the way that communication between services … is secured. It is also a challenging area which touches on many different foundational pieces of modern software development - networking, security, authorization, SDKs, cloud, Kubernetes and much more. CyberArk is putting together a new team dedicated to tackling this problem, and are looking for an experienced engineer to help shape both the team and the technology. Working closely … with a small team you will prototype product ideas and work quickly to iterate and experiment, before moving to productionize the best ideas. We are looking for an engineer with experience of at least one of security, networking, cloud or Kubernetes, ideally with specific experience related to the area of Workload Identity. This role has a lot of scope More ❯

third parties to utilize our inventory. We also provide tools for our customer service team to deliver world-class service to travelers and operators globally. We're seeking a Senior Software Engineer to join our fast-growing team. This role is open to candidates within a 2-3 hour commute of our offices in Oxford or London. More ❯

Hi I’m Abhik , Ashby's Co-Founder and VP of Engineering. We’re looking for an ambitious full-stack engineer who is laser-focused on solving customer problems and making the right long-term investments to solve them not only today but in our future features and products. If you’ve seen this role posted before, it’s … and build in an almost-no-meeting culture. While also the product-market fit and scale of a growth-stage startup: thousands of daily users who depend on your software and eagerly await your next feature. We have notable customers like Notion, Linear, Shopify, and Snowflake. Our growth and retention metrics are best-in-class among our peers: we … where we did our best work as ICs – where we had the ownership and agency to impact our users with creative and innovative software. I started my career building software for artists in the Visual Effects industry. It was a formative experience for me as a software engineer because success relied on my ability to be a More ❯