Full Stack Engineer

Full Stack Engineer (PHP, Go & React) | Up to £100k + Bonus | Hybrid

Our Software Engineering team has been engaged exclusively to build a brand-new product team for an innovative health and wellbeing tech startup creating a next-generation wellness platform. The product is being built from the ground up with a privacy-first architecture, designed to protect user data while delivering intelligent, personalised experiences.

This is an opportunity to join early, shape both the frontend and backend architecture, and play a critical role in building a product that genuinely aims to make a difference.

The Opportunity

  • Build and own full-stack features across a consumer-facing platform.
  • Work on a product where privacy and security are foundational, not afterthoughts.
  • Develop scalable backend services using PHP and Go.
  • Create modern, responsive user experiences using React.
  • Collaborate closely with mobile (iOS & Android) teams on shared data models and API integrations.
  • Influence application architecture, API design, frontend frameworks, and scalability decisions from day one.

What You'll Be Doing

  • Designing and developing backend services in PHP and Go for secure data handling and business-critical functionality.
  • Building intuitive, high-performance frontend applications using React.
  • Writing and maintaining unit, integration, and end-to-end tests.
  • Contributing to shared API specifications (OpenAPI / YAML).
  • Building privacy-first systems, including secure data synchronisation and user management capabilities.
  • Developing notification, engagement, and user-facing platform features.
  • Working alongside Kotlin Multiplatform, iOS, and Android engineers on shared schemas and integrations.
  • Ensuring GDPR compliance and best practices in data protection and application security.
  • Optimising applications for performance, scalability, accessibility, and reliability.
  • Participating in architecture discussions and helping define engineering best practices.

What We're Looking For

  • Strong commercial experience as a Full Stack Engineer or Software Engineer.
  • Experience building production applications using PHP.
  • Commercial experience with Go (Golang) or a strong desire to work with it.
  • Strong frontend development experience with React.
  • Solid understanding of API design and OpenAPI specifications.
  • Experience working with relational databases, ideally PostgreSQL.
  • Familiarity with cloud infrastructure (AWS, GCP, or similar).
  • Understanding of secure application development and privacy-first engineering principles.
  • Experience collaborating with cross-functional teams, including mobile engineers.
  • Strong preference for candidates with experience building consumer-facing products.

Nice to Have

  • Experience with TypeScript.
  • Experience with Docker, Kubernetes, or containerised environments.
  • Exposure to event-driven architectures and messaging systems.
  • Experience working in startup or scale-up environments.
  • Knowledge of CI/CD pipelines and modern DevOps practices.

Why This Role

  • Join a team building a brand-new product designed to genuinely help people.
  • Backed by a proven tech incubator with a strong history of launching successful products.
  • Early-stage team with plans to scale significantly over the next 6 months.
  • Work in a high-trust, no-ego culture where ownership and impact matter.
  • Competitive salary depending on experience, plus up to 10% performance-based bonus.
  • Strong benefits package and flexible working arrangements.
  • Opportunity to influence product and technical direction from the very beginning.

If you're a Full Stack Engineer who enjoys working across the frontend and backend, wants genuine ownership, and is excited by the opportunity to build a meaningful product from the ground up, this is worth a conversation.

👉 Apply now or get in touch for a confidential discussion.

Job Details

Company
develop
Location
Southampton, England, United Kingdom
Posted