At a Glance
- Tasks: Create impactful software solutions for real user challenges in a dynamic environment.
- Company: Join a market-leading tech company focused on transforming subcontractor experiences.
- Benefits: Enjoy competitive pay, private health insurance, remote work options, and team socials.
- Other info: Embrace a culture of transparency, learning, and collaboration in a hybrid work setting.
- Why this job: Be part of a mission-driven team that values your ideas and fosters growth.
- Qualifications: Experience in full-stack development with a passion for user-centric design.
The predicted salary is between 56700 - 69300 £ per year.
Location: Canary Wharf, London - WeWork (Hybrid)
Reporting to: Director of Product Engineering
Great products start with great people. Our relentless focus on user experience has been the cornerstone of our growth, helping us become the market leading software for fire protection subcontractors across the UK. We’ve grown by staying obsessed with building software that actually works for the subcontractors on the ground; fast, intuitive, and simple to use. We’re now gearing up for our next chapter: expanding into new trades and taking Onetrace global. We’re bootstrapped, profitable, and driven by a clear mission - to lead the digital transformation for subcontractors, one trade at a time.
Come be part of a team that’s smart, ambitious, and comfortable in the chaos of growth - where your ideas matter, and your work shapes what comes next. 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.
What this means day-to-day:
- We encourage you to talk to users and understand their real challenges
- Work as equals with product managers and designers to find the best solutions
- Care about your work from conception through production and beyond
- Balance shipping velocity with code quality and exceptional user experience
- Speak up with ideas, concerns, and feedback to help the team improve
- Embrace mistakes as learning opportunities and seek better approaches
We value transparency, honest communication, and engineers who genuinely care about the impact of their work. Subcontractors use Onetrace to prove their work has been carried out compliantly, with full traceability from start to finish. That not only makes their day-to-day smoother and more reliable, it also raises the standard across projects — ultimately leading to safer buildings for everyone to live and work in.
The Role
As a Senior Full-Stack Product Engineer at Onetrace, your mission is to translate complex user needs into elegant, high-impact solutions. You will take complete ownership of features from concept to deployment, architecting and building everything from performant React frontends to scalable Node.js services. You will help us to champion best practices, mentoring teammates, and contributing thoughtfully to the architectural decisions that shape our product's future.
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
Beyond the tech
We are building a team of Product Engineers because we believe the most impactful work comes from those who are closest to the problems we’re solving. For us, engineering is not just about executing a specification; it's about taking ownership of the user experience and the business outcome. Our engineers are partners in discovery and strategy, empowered to question assumptions, contribute to the 'why,' and use their technical creativity to build not just what is asked for, but what our users truly need.
Technical Skills:
- 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)
- 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:
- Enhanced parental leave
- Private medical insurance with Bupa
- Employee assistance programme
- Remote work abroad opportunities
- Apple MacBook and tech accessories
- Onetrace merch, regular team socials and annual company offsites
Onetrace is committed to diversity in the workplace and is proud to be an equal opportunity employer. If you require a reasonable adjustment, please contact us. All information will be kept confidential and will only be used for applying a reasonable adjustment. We operate a hybrid working model, with a minimum expectation of 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.
Senior Product Engineer employer: Onetrace
At Onetrace, we pride ourselves on being an exceptional employer that fosters a collaborative and innovative work culture in the heart of Canary Wharf, London. Our commitment to employee growth is evident through mentorship opportunities and a focus on meaningful contributions that directly impact our mission of transforming the subcontractor industry. With benefits like enhanced parental leave, private medical insurance, and a hybrid working model, we ensure our team members thrive both personally and professionally while enjoying a vibrant work environment.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Product Engineer
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Onetrace or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Onetrace.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Onetrace.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Onetrace that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Senior Product Engineer
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Onetrace.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Onetrace and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Onetrace
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Onetrace uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
