Senior Full-Stack Engineer
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Job Description
Senior Full-Stack Engineer building Perci Health’s virtual cancer-clinic platform. Shaping AI-assisted engineering practices for safer, regulated cancer-care software.
Responsibilities:
- Design, build and ship features end to end, from data model and API design through to frontend implementation
- Design and build robust, scalable APIs in TypeScript and Node.js, published in OpenAPI format
- Architect resilient distributed systems and third-party integrations, with sound error handling, failure mode mitigation and transaction control
- Work with FHIR R4 resources and clinical data models within Medplum
- Contribute to the frontend rewrite from Flutter to React
- Make build-versus-buy decisions and source non-differentiated capabilities
- Own testing and contribute to QA and DevOps work
- Ensure development practices meet medical-device regulatory requirements
- Write precise specifications that AI agents can implement and engineers can verify
- Consider verification, failure modes, risk-based review, monitoring, alerting, incident response and automated pre-release verification
- Help determine where agent-authored changes can be released directly to production
- Set standards and define engineering practices for AI-assisted development
Requirements:
- Around 6+ years building software end to end, ideally in TypeScript, Node.js and React; adjacent stacks considered where fundamentals are strong
- Substantial system design and architecture experience with production systems
- Practical distributed-systems and third-party-integration experience, including auth, webhooks, rate limits, retry strategies, fault tolerance and transaction management
- Strong testing ability and practice
- Experience using AI coding agents on production work and an informed view of their strengths and limitations
- Experience working in a small team with incomplete requirements
- Ability to write precise system descriptions and specifications
- Clear and confident communication in a fully remote environment
- Ability to work autonomously and collaboratively
- Motivation to build products that benefit people
- Experience in a regulated industry such as healthcare or finance
- Familiarity with FHIR R4 or other healthcare data standards and Medplum or similar platforms
- AWS infrastructure experience
- Some Flutter exposure
- Startup, scale-up or founding-engineer experience is useful
- Interest in software craft through writing, open-source contributions or community involvement is desirable
Benefits:
- 30 days of annual leave per year, in addition to UK statutory and public holidays
- 3 days paid annually to volunteer with a charity or community group of your choice
- Access to the YuLife wellbeing app
- Company laptop and any additional equipment required for the role
- Access to Perci's pension scheme
- Income protection cover
- Enhanced company sick pay
- Enhanced maternity and adoption pay (primary carer): 20 weeks at full pay, 16 weeks at 25%
- Enhanced paternity and adoption pay (secondary carer): 6 weeks at full pay, followed by 6 weeks at 50% of pay
- Access to over 400 co-working spaces across the UK
- Remote first working, supporting genuine work-life balance
- Employee Share Option Incentivisation
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