Senior Backend Engineer, Onetrace
Sponsorship: Yes
2-3 days a week in office (Canary Wharf, London)
Software for subcontractors to capture, document, and streamline construction projects in one place
Posted today
Software for subcontractors to capture, document, and streamline construction projects in one place
21-100 employees
Posted today
Sponsorship: Yes
2-3 days a week in office (Canary Wharf, London)
21-100 employees
Company mission
To build the simplest, most reliable tech that contractors have ever used.
Role
Who you are
- JavaScript / TypeScript – core programming languages
- Node.js – primary backend framework
- SQL databases and query optimisation
- MongoDB or other NoSQL database
- 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
- Familiarity with modern AI tools and a habit of staying up to date with how they can improve engineering workflows
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
- Knowledge of the construction industry
What the job involves
- We're looking for a Senior Backend Engineer to design and own the systems that power our product
- You will take end-to-end ownership of features with particular depth in APIs, data flows, and backend architecture, while remaining full-stack — comfortable shipping the frontend work needed to see a feature through without handing off
- You'll take operational responsibility for what you build, help shape the team's technical direction, and mentor others as you go
- Own end-to-end delivery of features that solve real product problems, with particular depth in the application logic and database layers, through to shipped functionality across the stack
- 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
- Take operational responsibility for what you build — from architecture and implementation through to how it behaves in production
- Build performant, well-tested backend services, while staying hands-on with the frontend so you can take a feature all the way through without handing off — avoiding a backend-only silo
- Use product metrics, engineering signals, and feedback from your team to inform technical decisions, prioritise improvements, and validate that shipped features deliver measurable value
- Partner with product and design to shape solutions early, translating requirements into technical architecture and surfacing risks and opportunities that impact outcomes
- Mentor and coach other product engineers, raising the bar for technical excellence
- We’re not your typical “move fast and break things” company. We believe in building thoughtfully and shipping quality software that genuinely helps our customers solve real problems
- Working here means being a product engineer, not just a backend or frontend specialist. We care about engineers who understand the bigger picture: the operatives on site, the project teams behind them, and the real-world impact of the tools we ship. You’ll bring curiosity to the “why” behind the work, not just the “how,” and you’ll see your code in action helping people get their jobs done with less friction
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 first-hand 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
- Care enough to make it better: we challenge ideas, improve what’s in front of us and take pride in raising the bar
- Focus on what matters: we prioritise impact, cut through noise and stay disciplined in how we spend our time
- Take ownership: we take responsibility for outcomes, follow things through and act with integrity and accountability
- Succeed as One: we work as one team - sharing context, supporting each other and putting collective success first
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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