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 layers
- Build intuitive, performant interfaces that customers actually want to use—balancing user needs, accessibility, and technical constraints while ensuring features work reliably across devices and contexts
- Use customer feedback, analytics, and direct user insights to inform technical decisions, prioritise improvements, and validate that shipped features deliver measurable value
- Design and implement complex data flows, API integrations, and background processing systems that handle high-volume operations reliably while maintaining system performance and data integrity
- Partner with product, design, and customers to shape solutions early, translating business requirements into technical architecture while surfacing risks and opportunities that impact customer outcomes
- Mentor 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 languages
- Node.js – primary backend framework
- MongoDB or other NoSQL database
- SQL databases and query optimisation
- RESTful API design and implementation
- Git – version control and collaborative workflows
- Testing strategies (unit, integration, end-to-end)
- Experience with monitoring, logging, and observability tools
- Knowledge of scalable system architecture and design patterns
- Familiarity 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 frameworks
- AWS infrastructure and services
- Infrastructure as Code (Terraform or similar)
- Distributed systems experience
- Message queues and background job processing
- Caching strategies and performance optimisation
- CI/CD pipelines and DevOps practices
Nice to Have
- Security best-practices implementation
- Experience in a growth-stage startup or B2B SaaS
- Knowledge of the construction industry
What we offer
- 25 days PTO, plus bank holidays
- Enhanced parental leave
- Private medical insurance with Bupa
- NEST pension scheme
- Employee assistance programme
- Remote work abroad opportunities
- Apple MacBook and tech accessories
- Onetrace 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
