Senior Backend Engineer, Onetrace
2-5 days a week in office (Canary Wharf, London)
Software for subcontractors to capture, document, and streamline construction projects in one place
Job no longer available
Software for subcontractors to capture, document, and streamline construction projects in one place
21-100 employees
Job no longer available
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. The fast-paced and ever-changing environment of this workplace means that a multitude of trades must coordinate and work together towards a shared goal. This requires software that simplifies and accelerates workflows, creating synergy between the many moving parts of a construction team.
Onetrace is a digital tool that helps subcontractors gather data for the capturing, documentation, and streamlining of their operations. It stores everything in one place for teams, their clients, and auditors. Though there are many digital tools for subcontractors to choose from, many were originally built to solve the specific challenges faced by their creators and were repurposed for widespread use. This can lead to overcomplicated construction products that are unreliable. With its focus on subcontractors, Onetrace's digital tools aim for agility and reliability in the face of unpredictable and ever-changing environments.
Onetrace's team has years of experience in the construction industry. As a result, they've witnessed firsthand the need for more effective project management, making the company an ideal digital partner for subcontractors.
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
- 💬 Employee assistance programme
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
Articles
Leadership
Lewis Bird
(Co-Founder & CEO)Co-Founded Onetrace in 2019. They have also been a Managing Director of NextDev & Sota Ventures since 2012.
Greg McClelland
(Co-Founder )Previously a Managing Director of Optimum Contractors and Optimum Cleaning Group. They were also an Engineering Specialist at RPM Jig & Tool.
People progressing
Tanay joined in 2022 as an Onboarding & Training Executive. Now Implementation Manager, he ensures every Mid-Market and Enterprise customer has a smooth transition from sale to onboarding!
Benjy joined Onetrace as a founding AE. He quickly proved himself as a top performer and, over time, grew into a Senior AE, consistently driving results and setting the standard for excellence.
Diversity, Equity & Inclusion at Onetrace
Dina Lagou (Head of People & Operations )
- We Build With Diversity. We Lead With Respect.
- At Onetrace, our team includes over 15 nationalities. We’re proud to be a multicultural, collaborative team - bringing together different voices, perspectives, and experiences to shape the future of construction technology.
- Inclusivity isn’t just part of our culture, it’s baked into our product design and customer experience. From the features we build to the way we work together, we believe great technology starts with understanding and respecting the people it’s built for.
- We believe diversity isn’t a ‘nice-to-have’ - it’s essential to building great products. The more inclusive we are as a team, the better we reflect and serve the diverse trades, people and cultures using Onetrace every day.
- Internally, we’re committed to creating a space where everyone feels they belong - where our values of respect above all and doing the right thing aren’t just words, but behaviours we live and reinforce together. Externally, that same mindset shows up in how we partner with customers - through our product, our communication and our commitment to raising the standard across the industry. Because to build technology that works for everyone, it needs to be shaped by everyone.
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