Senior Product Engineer

Job Title: Senior Product Engineer (Full-Stack) Department: Product Engineering Basis: Full-time, permanent Location: Canary Wharf, London - WeWork Reporting to: Director of Product Engineering About the role We’re looking for a Senior Full-Stack Product Engineer to join Onetrace as we continue to grow our platform. You’ll take ownership of features from concept to deployment, building scalable backend services and intuitive frontend experiences. You’ll also help shape technical decisions, champion best practices, and contribute to the future direction of our product. Want to dig deeper? If you’re curious about what it’s really like to build at Onetrace, we’ve written more about our approach, straight from the people you’ll be working with: Our Product Engineering Culture – by Luca Carangella, Director of Product Engineering, on how we think about engineering and collaboration.Building Products for Subcontractors – by our Co-Founders, Lewis and Greg, outlining the mindset and manifesto that guide how we build. What you’ll do Own end-to-end delivery of features that solve real customer problems, from understanding user pain points through to shipped functionality across UI, application logic and database layersBuild intuitive, performant interfaces that customers actually want to use—balancing user needs, accessibility, and technical constraints while ensuring features work reliably across devices and contextsUse customer feedback, analytics, and direct user insights to inform technical decisions, prioritise improvements, and validate that shipped features deliver measurable valueDesign and implement complex data flows, API integrations, and background processing systems that handle high-volume operations reliably while maintaining system performance and data integrityPartner with product, design, and customers to shape solutions early, translating business requirements into technical architecture while surfacing risks and opportunities that impact customer outcomesMentor and coach other engineers, raising the bar for technical excellence through code reviews, pair programming, and architectural guidance What you'll bring Essential JavaScript / TypeScript – core programming languagesNode.js – primary backend frameworkMongoDB or other NoSQL databaseSQL databases and query optimisationRESTful API design and implementationGit – version control and collaborative workflowsTesting strategies (unit, integration, end-to-end)Experience with monitoring, logging, and observability toolsKnowledge of scalable system architecture and design patternsFamiliarity with modern AI tools and a habit of staying up to date with how they can improve engineering workflows Highly Desirable AdonisJS, NestJS or similar MVC frameworksAWS infrastructure and servicesInfrastructure as Code (Terraform or similar)Distributed systems experienceMessage queues and background job processingCaching strategies and performance optimisationCI/CD pipelines and DevOps practices Nice to Have Security best-practices implementationExperience in a growth-stage startup or B2B SaaSKnowledge of the construction industry What we offer 25 days PTO, plus bank holidaysEnhanced parental leavePrivate medical insurance with BupaNEST pension schemeEmployee assistance programmeRemote work abroad opportunitiesApple MacBook and tech accessoriesOnetrace merch, regular team socials and annual company offsites Hybrid guidelines We operate a hybrid working model, with a minimum expectation of 2-3 days per week in the office. This is a core part of how the role works and isn’t something we’re flexible on. 🔗 Full Job Description: https://onetrace.com/careers/senior-product-engineer