N3 Technologies is the Cornerstone Group company behind the N3 Platform, an intelligent SaaS solution for project estimation, monitoring and reporting. We help organisations move away from spreadsheet chaos and into confident, data-driven project delivery. We’re growing fast and building a team of people who are as ambitious as us to innovate the industry.
The Full Stack Software Engineer will join our platform team. You’ll be working across the full stack, from crafting intuitive React interfaces to building robust NestJS APIs and playing a meaningful role in the continued development and maintenance of the N3 Platform.
This is a full-time / permanent position but we will consider an initial contract. Ideally based in the Birmingham or Worcester office and willingness to travel between offices as required.
Key Responsibilities:
- Design, build and maintain features across the N3 Platform frontend and backend.
- Work with PostgreSQL (Supabase) for data modelling and query optimisation.
- Build and maintain AWS infrastructure supporting platform deployments.
- Collaborate with QA to ensure high-quality, reliable releases.
- Participate in architecture discussions and contribute to technical decisions.
- Review code and support fellow engineers through collaboration and mentoring.
Experience, Skills & Qualifications:
- Experience with React and modern frontend tooling.
- Backend experience with Node.js frameworks (NestJS preferred).
- Comfortable working with Prisma + PostgreSQL — schema design, migrations and queries.
- Hands‑on experience with AWS services (ECS, ECR, CloudFront, or similar).
- Understanding of RESTful API design and integration patterns.
- Familiarity with Git-based workflows and CI/CD pipelines.
- Experience with Prisma ORM.
- Familiarity with Supabase or similar managed Postgres platforms.
- Exposure to Docker and containerised deployment workflows.
Additional Requirements:
- Willingness to travel between offices as required.
- Flexibility in working hours to accommodate deadlines.
- Demonstrates ambition and commitment to self-development.
- Can demonstrate sharing our company core values:
- Integrity – We do the right thing – even when no one’s watching.
- Excellence – We take care and pride in getting things done right.
- Innovation – We’re always looking for a better way.
- Collaboration – We believe great projects start with great teamwork.
- Client Focus – We listen and make every client interaction count.
- People Growth – We grow our team so we can grow together.
- A full UK driving licence, with use of a car when needed for business use.
- Must have the right to work in the UK.
We value and celebrate diversity at Cornerstone Group. We are committed to ensuring that all applicants and employees are treated with respect and fairness, regardless of race, colour, ethnic or national origin, religion or belief, gender or gender identity, sexual orientation, marital or family status, caring responsibilities, age, or disability.
We welcome you to share your preferred pronouns during the application process.
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