1 to 25 of 31 Product Engineer Jobs in the City of London

Product Security Engineer (FinTech) London (4 days onsite) | £80,000 to £90,000 + Benefits Are you a Product Security Engineer looking to make a real impact? We are working with a fast-growing FinTech that is reshaping the payments landscape. You will collaborate with engineering teams to build security into products from day one, focusing … on secure cloud architecture, threat modelling, and risk management. This is not a hands-off role. You will be the go-to advisor for product teams, helping them understand risk, make informed security decisions, and deliver innovative, secure solutions at scale. What you will do Conduct security assessments and drive a secure-by-design culture Collaborate with engineering teams … risks, and manage remediation through Jira Lead threat modelling and architecture reviews Shape security tooling and process improvements What you will bring 3 to 5 years in Cyber Security, Product Security, or Secure Software Development Strong knowledge of GCP (primary), AWS, Azure Experience with threat modelling, AppSec, and security in CI/CD pipelines Ability to communicate security concepts More ❯

Senior Product Engineer – HealthTech | London | Up to £110k + Equity Location: Central London (Hybrid, 3 days/week) Salary: £70,000–£110,000 (DOE) + Equity Tech Stack: Ruby, PHP, Python, C#, JavaScript Join a fast-growing HealthTech scaleup that’s already improved the lives of over 1 million patients through innovative fitness, tracking, and subscription-based solutions. … ll Do: Build and shape greenfield products in a fast-paced, agile environment Work across a flexible tech stack (language agnostic) Tackle complex problems with minimal specs Contribute to product direction and potentially lead projects What They’re Looking For: Startup/scaleup experience Strong backend or full-stack skills Self-starter mindset with problem-solving chops Bonus: Leadership More ❯

London - Tech for good opportunity! - Health Tech - Senior Product Engineer (Ruby, PHP, Python and C#) Full Stack/Backend - 2 roles available - Up to £100k+ Location: London Hybrid: 3 days About the Company I am working with a new scaleup client in the exciting healthtech space that has helped over 1 million patients to date, with applications in … and tracking, across a number of conditions. They are on an exciting scale-up journey following growth and investment rounds. About the Role They are now looking for strong product-focused Engineers who have scaleup and startup experience, who can go to their office in central London, 3 days a week. They are technology agnostic - considering various backend technologies More ❯

tracking, across a number of conditions. They are on an exciting scale-up journey following growth and investment rounds. About the Role They are now looking for a strong product-focused Lead Engineer or Hands On Engineering Manager who has scaleup and startup experience, who can go to their office in central London, 3 days a week. They More ❯

and tracking, across a number of conditions. They are on an exciting scale-up journey following growth and investment rounds. About the Role They are now looking for strong product-focused Engineers who have scaleup and startup experience, who can go to their office in central London, 3 days a week. They are technology agnostic - considering various backend technologies More ❯

Full-Stack Product Engineer Opportunity Are you a passionate Full Stack Engineer ready to make a significant impact in the AI domain? Role Highlights: Position: Full-Stack Product Engineer Location: Hybrid (London HQ) Salary: £65,000 – £75,000 + Equity Tech Stack: Python, Javascript, Elixir, Phoenix, Vue.js, PyTorch Experience: 5+ years in full-stack development More ❯

Full Stack Product Engineer (Stealth AI Startup) 📍 London, UK (On-site, 5 days/week) About the Role Join a small, high-performing product engineering team at an early-stage AI startup (currently in stealth). As the third engineer on a close-knit London-based platform team, you’ll play a pivotal role in building … and iterating on a powerful, user-facing platform from the ground up. This is an opportunity to help define the architecture and direction of a product with the potential to reshape how AI is deployed in complex business environments. We’re building technology around cutting-edge AI workflows that require deep technical ownership and creativity. What You’ll Do … Build end-to-end product features across the stack (frontend, backend, data) Work closely with founders and engineers to ship fast, iterate quickly, and influence product direction Solve novel technical challenges related to scaling, performance, and usability Contribute to a product that leverages AI in practical, real-world workflows You Might Be a Fit If You Have More ❯

Product Engineer | AI-Powered Innovation in Finance 📍 London (Hybrid/On-Site) A high-growth AI company—trusted by 40% of the top 50 global financial institutions—is hiring a Product Engineer to join their elite, cross-functional team. Their mission? To redefine how the financial world works by replacing manual, complex workflows with intelligent, agentic … Build and ship real-world AI applications—end-to-end—from prototype to production Translate messy problems into powerful, scalable systems using LLMs and full stack tools Act as engineer, strategist, and product partner all in one Work closely with founders, researchers, and AI engineers at the forefront of innovation ✅ What They’re Looking For 4+ years of More ❯

Product Engineer | AI-Powered Innovation in Financial Services Location: London (Hybrid) The Company Our client is a rapidly scaling AI company, with $16M in early funding and a client list that includes industry giants like Goldman Sachs. They are redefining what’s possible in data-driven decision-making. Now building out teams in London and New York, they … are looking for a Product Engineer ready to help push the boundaries of intelligent automation. The Opportunity This role blends engineering, product strategy, and customer success into one. You’ll act as the technical lead for a high-priority client - designing, building, and deploying AI-powered products that directly impact their business outcomes. You won’t just … build software. You’ll shape the direction of the product, working closely with stakeholders, iterating fast, and solving meaningful problems with the latest AI technology. Ideal for someone looking to grow into a CTO or VP of Engineering role, this is an opportunity to gain real ownership, fast. What You’ll Be Doing: Build and deliver scalable, production-grade More ❯

Social network you want to login/join with: London - Tech for good opportunity! - Health Tech - Senior Product Engineer (Ruby, PHP, Python and C#) Full Stack/Backend - 2 roles available - Up to £100k+, London (City of London) col-narrow-left Client: Opus Recruitment Solutions Location: London (City of London), United Kingdom Job Category: Other - EU work permit More ❯

contact-centre as a service platform that automates contact operations across voice, email, chat and SMS, enabling humans in the loop where necessary. Overview: We’re hiring for a Product Engineer (backend C# .net core) to join our founding team. The role will focus on backend development that blends email, chat, telephony, voice AI and LLMs. You’ll … play a key role in building core product functionality, from low-latency backend services to real-time communications and third-party integrations. If you’re proactive, technically strong, and excited about building high-impact systems in a startup environment, this role is for you. Key Responsibilities: Communicate clearly, seek clarification when needed. Navigate ambiguity and working with minimal supervision. More ❯

Product Engineer 2-3 days a week in London offices Pays £80k-£95k + equity & benefits Product Engineer - Python, Flask, GCP I've just partnered, with a high-growth InsureTech start-up, looking to expand their highly skilled engineering team, where you will play a pivotal role in helping scale their platform, shaping the architecture and … security, and be involved in all aspects of the business as they look to scale. With the team being smaller, candidates who come with experience working closely to the product, collaborating with Product Designers and Managers and come with a Product first mindset. Product Engineer - Python, Flask, GCP Key skills and requirements: 3+ years of … with Python Strong experience with Python frameworks, ideally Flask GCP Cloud expertise High-level of understanding in server-side architecture Comfortable working in a high-growth, start-up environment Product first mindset (essential) Hybrid working with 2-3 days a week required in a London office Pays £80k-£95k + equity & benefits Product Engineer - Python, Flask, GCP More ❯

Senior Product Engineer (React, Node.js) Salary: £75,000 - £95,000 Location: Hybrid in London. Senior Product Engineer - would you like the opportunity to work for a market leading organisation, currently delivering to over 150 countries worldwide? You will be joining a technology team who have a passion for innovation, collaboration, and providing the best service to … their customers as well as embracing new ideas, technologies and approaches. As a Senior Product Engineer, you will be joining one of their Fullstack development teams working on Node.js and React, building out their suite of business applications and APIs. The company has grown significantly in the last few years and are looking for someone who can join … will have an in-depth understanding of JavaScript and Node.js/React and have some experience of coaching or mentoring teams in the past. Essential skills for a Senior Product Engineer: Fullstack JavaScript and Node.js development experience. Hands on experience of developing REST web services and API's. Knowledge and experience of deploying to cloud services, preferably AWS. More ❯

Senior Product Engineer Python, TypeScript, React, Next.js Health-Tech We have partnered with an exciting Health-Tech start-up to build out their Product Engineering team to support their recent series A raise & ambitious growth plans🚀 Why it’s exciting They’re tackling one of the most emotionally and financially challenging areas in healthcare: fertility. Their mission … to make starting a family more accessible, while also improving operational efficiency across the fertility care ecosystem. ⚙️Stack: Python, TypeScript, React, Next.js AWS About you... 🛠 Experience as a Fullstack Product Engineer, ideally with some frontend experience too (nice to have) 📲 You've worked on a consumer product or love delving into user needs and bringing them to … life through code 💻 You’ve got strong experience with Python, TypeScript, React, AWS, PostgreSQL 🌱 You want to join a small but mighty product-engineering team ✨ You want ship meaningful features with real customer impact, and contribute to shaping both product and technical direction The package £65,000–£90,000 + equity Private healthcare, fertility support/testing, enhanced More ❯

Role: Senior Product Engineer Salary range: £100,000 - £160,000 Location: 4-5 days on site, Kings Cross Tech stack: Flexible A mission-driven firm is hiring a Senior Product Engineer to help build the systems and tools that support a new wave of companies tackling humanity’s biggest challenges, from decarbonization and bioengineering to machine … and planetary health. They are a small team of technologists, operators, and scientists backing and building alongside deep tech startups at the earliest stages. You’ll be the fourth engineer on the team, with the opportunity to design and own core products and infrastructure from the ground up. This role blends product-minded engineering with startup-level autonomy. … changing companies scale faster and smarter. What you'll do: Architect, build, and maintain scalable internal and external-facing tools Collaborate directly with technical founders, scientists, and investors Drive product discovery with a mix of engineering insight and experimentation Lead technical design decisions and mentor junior team members over time Contribute to a long-term vision of enabling impact More ❯

We’re hiring a Full Stack Product Engineer (Python, React, Next.js, TypeScript, FastAPI, Postgres) to join the founding team of a London based , early stage startup publicly launching in a few months (they're currently in stealth mode ). Led by former heads of Palantir’s AI Engineering team , they're building a new type of platform to … saw as the biggest bottleneck to getting AI into production : teaching models what you actually want them to do. They’ve raised $6.5M in early funding , are deep in product build mode, and are looking for a curious, product-minded engineer to join as their third technical hire . What you’ll do Build core product … on-site in London (they genuinely enjoy working + lunching together) What we're looking for Experience at a startup that's scaled or been through funding rounds Strong product intuition and attention to detail with highly customer orientated focus Experienced integrating or building AI platforms/features Full stack experience on our stack (Python, React, Next.js, TypeScript, FastAPI More ❯

Social network you want to login/join with: Senior Product Engineer (Web)- Health Tech Scale-up - React/TypeScript/Next.js - £100k - Hybrid in London - TECH FOR GOOD, london (city of london) col-narrow-left Client: Opus Recruitment Solutions Location: london (city of london), United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right … lives. Their all-in-one platform combines cutting-edge technology with world-class medical expertise to diagnose, treat, and support their users. They’re looking for a Senior Frontend Product Engineer (web) who’s not just a coder, but a builder, a thinker, and a doer. You will work in a BRAND NEW TEAM and continue to build … is a fantastic chance to join a tech for good and innovation driven health tech company who are slowly becoming market leaders in their field! What they need: A product-minded engineer who owns what they build – from idea to impact. Someone who spots UX issues and fixes them fast. A data-driven decision-maker who thrives in More ❯

lives. Their all-in-one platform combines cutting-edge technology with world-class medical expertise to diagnose, treat, and support their users. They’re looking for a Senior Frontend Product Engineer (web) who’s not just a coder, but a builder, a thinker, and a doer. You will work in a BRAND NEW TEAM and continue to build … is a fantastic chance to join a tech for good and innovation driven health tech company who are slowly becoming market leaders in their field! What they need: A product-minded engineer who owns what they build – from idea to impact. Someone who spots UX issues and fixes them fast. A data-driven decision-maker who thrives in … by example and lifts others up. A full-stack problem-solver who’s not afraid to dive into backend or infra. Tech Requirements 5+ years of engineering experience + product engineering experience Strong frontend skills, full-stack comfort (they are tech agnostic on the backend) React Next.js TypeScript TDD React Native (a plus) You’ll Need: Product Mindset More ❯

lives. Their all-in-one platform combines cutting-edge technology with world-class medical expertise to diagnose, treat, and support their users. They’re looking for a Senior Mobile Product Engineer (mobile) who’s not just a coder, but a builder, a thinker, and a doer. You will work on their Health & Fitness MOBILE APPLICATION that helps their … part of a growing company & great culture. They're very team orientated and collaborative and also heavily promote a sociable place to work/enjoy! What they need: A product-minded engineer who owns what they build – from idea to impact. Someone who spots UX issues and fixes them fast. A data-driven decision-maker who thrives in … and lifts others up. A full-stack problem-solver who’s not afraid to dive into backend or infra. Tech Requirements Mobile Engineering experience with React Native (5+ years) Product engineering experience Strong frontend skills, full-stack comfort (they are tech agnostic on the backend) TypeScript TDD React (a plus) You’ll Need: Product Mindset Lead features end More ❯

lives. Their all-in-one platform combines cutting-edge technology with world-class medical expertise to diagnose, treat, and support their users. They’re looking for a Senior Mobile Product Engineer (mobile) who’s not just a coder, but a builder, a thinker, and a doer. You will work on their Health & Fitness MOBILE APPLICATION that helps their … part of a growing company & great culture. They're very team orientated and collaborative and also heavily promote a sociable place to work/enjoy! What they need: A product-minded engineer who owns what they build – from idea to impact. Someone who spots UX issues and fixes them fast. A data-driven decision-maker who thrives in … and lifts others up. A full-stack problem-solver who’s not afraid to dive into backend or infra. Tech Requirements Mobile Engineering experience with React Native (5+ years) Product engineering experience Strong frontend skills, full-stack comfort (they are tech agnostic on the backend) TypeScript TDD React (a plus) You’ll Need: Product Mindset Lead features end More ❯

lives. Their all-in-one platform combines cutting-edge technology with world-class medical expertise to diagnose, treat, and support their users. They’re looking for a Senior Mobile Product Engineer (mobile) who’s not just a coder, but a builder, a thinker, and a doer. You will work on their Health & Fitness MOBILE APPLICATION that helps their … part of a growing company & great culture. They're very team orientated and collaborative and also heavily promote a sociable place to work/enjoy! What they need: A product-minded engineer who owns what they build – from idea to impact. Someone who spots UX issues and fixes them fast. A data-driven decision-maker who thrives in … and lifts others up. A full-stack problem-solver who’s not afraid to dive into backend or infra. Tech Requirements Mobile Engineering experience with React Native (5+ years) Product engineering experience Strong frontend skills, full-stack comfort (they are tech agnostic on the backend) TypeScript TDD React (a plus) You’ll Need: Product Mindset Lead features end More ❯

Social network you want to login/join with: Senior Product Engineer (Mobile)- Health Tech Scale-up - React Native/TypeScript/- £100k - Hybrid in London - TECH FOR GOOD, london (city of london) col-narrow-left Client: Opus Recruitment Solutions Location: london (city of london), United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right … lives. Their all-in-one platform combines cutting-edge technology with world-class medical expertise to diagnose, treat, and support their users. They’re looking for a Senior Mobile Product Engineer (mobile) who’s not just a coder, but a builder, a thinker, and a doer. You will work on their Health & Fitness MOBILE APPLICATION that helps their … part of a growing company & great culture. They're very team orientated and collaborative and also heavily promote a sociable place to work/enjoy! What they need: A product-minded engineer who owns what they build – from idea to impact. Someone who spots UX issues and fixes them fast. A data-driven decision-maker who thrives in More ❯

days a week. We exist to give engineers superpowers. Our mission is to vastly accelerate hardware invention by building critical software infrastructure that accelerates foundational engineering processes. Our product, is a collaboration platform that helps teams to bring products to market faster by seamlessly integrating and synchronising their engineering models. 👩‍💻 About Engineering at Flow We care deeply about our … world’s top hardware engineers (our users), understand how they work, their pains, and ship solutions to those pains You’ll know our customers, how they feel about the product, and what milestones they need to hit to get their own product(s) to market. You’ll know what our sales pipeline looks like, and what features matter …/when you don’t, you’re not afraid to say so - others probably don’t either Good communicator - clear, concise, courteous. 2+ year(s) experience as a Software engineer 💡 How we think How to Build an MVP (Michael Seibel) Code-first vs Product-first (Zach Lloyd) Simple Made Easy (Rich Hickey) (First 25mins) 🖥️ Our Tech Stack Golang More ❯

Lead & Principal Frontend Focussed Fullstack Product Engineers (React/TypeScript) - £80 -140K + Equity + Benefits Hybrid (3 days/week in London) The Opportunity We're looking for Lead and Principal engineers to help shape the future of our brand-new platform - one with zero tech debt, a strong engineering culture, and serious backing (pre-seed valuation … 25m). This is a chance to have real ownership across product strategy, technical direction, and user experience, working closely with a tight-knit team of engineers who ship fast, think deeply, and care about craft. We’re building a B2B SaaS Martech product that helps marketing teams drive growth with less guesswork. If you’ve worked on … products and love startup energy, you’ll fit right in. What We’re Looking For Strong experience with React and TypeScript (Next.js a bonus) Solid engineering fundamentals and a product mindset Happy to work across the stack - ideally with Go (but if you’re fullstack in JS/Node/Express, with React on the front, we’ll teach More ❯

Senior/Lead Product Engineer - HealthTech - Fully Remote Salary: £80,000 - £110,000 + Equity Industry: HealthTech/Tech for Good 🏥 Location: Fully Remote UK with Offices in London Tech Stack: GO, React, TypeScript, Node.js 🚀 Company Overview 🌱 Our client is an early-stage, VC-backed AI startup on a mission to redefine the wellness space. Backed by top … and already seeing strong early traction, they’re blending AI with beautifully crafted products to create a super impactful platform. They’re now looking for a Senior/Lead Product Engineer to join their growing team and help drive the next phase of growth. The Role 🛠 Early stage startup hire — huge ownership and autonomy Working closely with the … founders to bring the product vision to life GO backend, TypeScript/React frontend - open to Node.js experience on Backend too Must be able to operate in a full stack environment React Native is a bonus Desired Skills 🎯 GO React TypeScript/Node AWS This role is moving fast — if you’re looking for a big mission, early equity More ❯