Senior Product Engineer

Location: Canary Wharf, London – Hybrid Remote. Reporting to Director of Product Engineering. Full‑time, permanent.

About Onetrace

Onetrace is a market‑leading software for fire protection subcontractors. We build fast, intuitive, and simple tools that work for ground‑level teams. Growing into new trades, we are bootstrapped, profitable, and focused on digital transformation for subcontractors worldwide.

Engineering Culture

We ship thoughtfully and ship quality. Product engineers here own the entire journey from user research to production. Collaboration with product managers, designers, and frontline users shapes every feature. We value transparency, honest communication, and engineers who care about real impact.

Day‑to‑Day

• Direct user connection – talk to users to understand real challenges.
• Collaborative partnership – work as equals with product managers and designers.
• End‑to‑end ownership – care about code from conception through production.
• Quality focus – balance shipping velocity with code quality and exceptional UX.
• Open communication – speak up with ideas, concerns, and feedback.
• Continuous learning – embrace mistakes and seek better approaches.

Responsibilities

• Own end‑to‑end delivery of features that solve real customer problems across UI, application logic, and database.
• Build intuitive, performant interfaces that users want to use, balancing user needs, accessibility, and technical constraints.
• Use customer feedback, analytics, and direct insights to inform technical decisions and validate shipped features deliver measurable value.
• Design and implement complex data flows, API integrations, and background processing systems that handle high‑volume operations reliably.
• Partner with product, design, and customers to shape solutions early, translating business requirements into technical architecture while surfacing risks and opportunities.
• Mentor and coach other engineers, raising the bar for technical excellence through code reviews, pair programming, and architectural guidance.

Qualifications

• 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.
• Backend testing strategies (unit, integration, end‑to‑end).
• Experience with monitoring, logging, and observability tools.
• Knowledge of scalable system architecture and design patterns.

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‑practice 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 off‑sites.

Diversity & Inclusion

Onetrace is an equal‑opportunity employer. We are committed to diversity and inclusion in the workplace. If you require a reasonable adjustment, please contact us. All information will be kept confidential and used only for applying a reasonable adjustment.