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Backend Software Engineer Java Kotlin AWS
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Backend Software Engineer Java Kotlin AWS
Backend Software Engineer / Developer (Java, Kotlin, AWS, API)
Hybrid Working Flexibility | £120,000 per annum
About the Role
Are you looking for a career-defining Backend Software Engineer role where you can make a real impact? Join a scaling HealthTech Start-up, co-owned by two Cambridge-educated former management consultants, dedicated to revolutionising patient care and social services through cutting-edge technology.
You'll work closely with the CTO to design and architect bleeding-edge solutions leveraging:
- Java / Kotlin for server-side development
- Spring Boot for robust, scalable backend services
- AWS for cloud infrastructure and database management
- TypeScript, React, and Next.js for intuitive, high-performance frontend interfaces
This Greenfield opportunity means you'll help build the beta product from scratch, from intricate business logic to authentication & security frameworks—perfect for engineering minds who thrive in creative problem-solving and hands-on ownership.
The role is 80% remote, with your HQ in London—you’ll visit the office once every three weeks, supplemented by occasional South West client trips to refine bespoke requirements and deliver tailored solutions.
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Your Responsibilities
✅ Architecture & Strategy: Collaborate with the CTO to define and implement technical roadmaps, ensuring scalable, future-proof solutions ✅ End-to-end Delivery: Lead from initial design to final deployment, including complex backend logic, APIs, and security layers ✅ Tech Leadership: Make informed, data-driven technical decisions aligned with long-term product strategy ✅ Client & Stakeholder Management: Work directly with clients to capture requirements, present solutions, and drive adoption ✅ Cross-functional Engagement: Bridge technical and business teams, ensuring smooth delivery under tight deadlines
Your Profile
You’re the full-stack engineer we’re looking for:
🔍 Core Technical Fit:
- Proficient 4+ years in Kotlin, Java, Spring Boot, and a proven track record in AWS (EC2, RDS, Lambda, DynamoDB, etc.)
- Experience designing and engineering RESTful/GraphQL APIs, with deep understanding of authentication, RBAC, and fine-grained permission systems
- Skilled in OSI model correlation for performance optimisation and scalable systems architecture
📜 Education & Roles:
- Degree in Computer Science / Engineering or equivalent
- Prior cohorts include numbers geek to director-level – ideally, you’re mature with ownership mindset
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🤝 Cultural & Leadership Attributes:
- Technical decision-making with business acumen – balancing stakeholder needs with engineering excellence
- Strong communication skills—conveying technical concepts to both engineers and non-techs with confidence
- Ability to train and mentor mid-level engineers alongside delivery of strategic priorities
📚 A Nice Bonus:
- Hands-on experience with React/TypeScript or a passion to quickly onboard
- Interest in Healthcare tech and its ethical impact on society
Why This Opportunity?
💰 Competitive Reward Package:
- Salary up to £120,000
- Equity stake – invest in your own company growth
- Progression trajectory tailored to high performers: from AD to FD roles
🌍 Mission-Driven Impact:
- Design software that improves the accessibility and collaboration in social care and patient records – Tech for Good with measurable societal benefit
Ready to address a critical problem in healthcare with real scalar impact? Apply now for more details. Your next big step starts here!
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