Senior Backend Engineer, Onetrace
2-5 days a week in office (Canary Wharf, London)
Software to capture, document and streamline construction projects
Be an early applicant
Software to capture, document and streamline construction projects
21-100 employees
Be an early applicant
2-5 days a week in office (Canary Wharf, London)
21-100 employees
Company mission
To be the leading software for subcontractors in the construction industry.
Role
Who you are
- 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
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
- Security best-practices implementation
- Experience in a growth-stage startup or B2B SaaS
What the job involves
- Design, build, and maintain backend services using Node.js and TypeScript
- Evolve our architecture for scalability, performance, and maintainability
- Refactor and modernise legacy systems to reduce technical debt
- Design and enhance RESTful APIs, ensuring consistency, security, and clear documentation
- Integrate with both internal and external services, building reliable, well-tested connections
- Implement and improve observability: logging, metrics, monitoring, and alerting
- Optimise database performance across MongoDB and SQL-based systems
- Introduce and maintain patterns, tooling, and frameworks that improve developer experience
- Collaborate cross-functionally to translate product requirements into technical solutions
- Mentor engineers through code reviews, pairing, and knowledge-sharing sessions
- While your primary focus will be strengthening our backend systems, we’re not looking for someone who only wants to live in that layer. At Onetrace, engineers are expected to think and work like full stack product engineers – flexible, collaborative, and willing to jump into whichever part of the stack will best solve the problem
- Reporting to: Director of Product Engineering
Application process
- First Stage (Virtual) - Conversation with our Senior Talent Acquisition Specialist (45 mins)
- Second Stage (Virtual) - Technical discussion with our Director of Product Engineering and CTO (1 hour)
- Final Stage (Onsite) - 3 hours:
- Paired programming exercise with one of our Senior Engineers (1 hour)
- System design interview task with our CTO (1 hour)
- Q&A with our Leadership Team (30 mins)
Salary benchmarks
Our take
Compliance and transparency within the construction & building industry have always been of great importance, especially now considering the current pressure on the sector to build sustainable and safe housing.
Onetrace is a digital tool that helps contractors gather data for the capturing, documentation, and streamlining of their operations. It stores everything in one place for teams, their clients, and auditors.
The company is backed by a team that has years of experience in the construction industry, and so has witnessed firsthand the need for better ways to manage projects. Onetrace has worked with the likes of Bellway, L&Q, the NHS, and Berkeley Group.
Kirsty
Company Specialist at Welcome to the Jungle
Company
Company benefits
- 🏥 Private medical insurance (Bupa)
- 🍼 Enhanced parental leave
- ✈️ Remote work abroad (2 Weeks Annually)
- 🌴 Annual team offsite
- 🏖️ 25 days PTO
- 🚆 Season ticket loan scheme
- 💰 NEST pension
- 🧑💻 Apple MacBook with all the necessary software
- 🏢 WeWork membership
- 🏡 Hybrid working
Company values
- Driven by Passion - You’ll feel it in the way we approach challenges with energy and commitment, always looking for ways to deliver impact and celebrate the progress we make along the way.
- Devoted to Innovation - Curiosity drives us to ask questions, challenge assumptions and experiment with better ways of doing things. Innovation here is about practical solutions that solve real problems.
- Strive to Simplify - Complexity is the enemy of speed and clarity. We keep things simple - in our product, our processes and our communication, so that we can focus on what really matters.
- Do the Right Thing - We act with humility, honesty, and transparency - even when it’s difficult. Respect, accountability, and trust are the foundations of our relationships with each other and with our customers.
- Respect Above All - Every voice matters. We listen actively, value diverse perspectives and create an environment where everyone feels seen, heard, and included.
- Empowering Teams - We back each other to take initiative, own outcomes and share ideas. Together, we’re building a team where people don’t just do their jobs - they grow their craft and help shape the future of Onetrace.
Company HQ
Canary Wharf, London, UK
Leadership
Lewis Bird
(Co-Founder & CTO)Co-Founded Onetrace in 2019. They have also been a Managing Director of NextDev & Sota Ventures since 2012.
Greg McClelland
(Co-Founder & CCO)Previously a Managing Director of Optimum Contractors and Optimum Cleaning Group. They were also an Engineering Specialist at RPM Jig & Tool.
Diversity, Equity & Inclusion at Onetrace
Dina Lagou (People & Operations Manager)
- We care about creating opportunities. We know that females are underrepresented in both the technology and construction space and we are committed to making a positive change.
- Our goal isn't just about empowering female candidates, it extends to all marginalised groups. We want to open doors, in technology and construction, to anybody who wants to make a difference.
- We know that diversity drives innovation, and we embrace individuals from all backgrounds, experiences, and perspectives.
- Although we are a small team right now, we have employees from many different countries and cultures and we celebrate diversity within our team whenever we can.
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