Daysix
Senior Product Engineer
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Senior Product Engineer
Senior Product Engineer / Technical Lead
Role Type: Full-time, Permanent
Hours: 35 hours per week
Location: Edinburgh (Hybrid)
About Daysi
Daysi is an innovative health technology company building products that make a genuine difference to people's lives. Having evolved from a successful digital agency into a dedicated product organisation, Daysi is focused on developing scalable technology solutions that solve meaningful real-world challenges. At the centre of this journey is an innovative healthcare platform that bridges the gap between health teams and citizens.
Our success comes from a culture that’s deeply inquisitive and focused on truly understanding the problems we solve. We dig deep into problems, collaborate closely with partners, and build software that makes a visible difference and contribution.
Daysi is collaborating with the NHS, MyCare.scot, the National Digital Platform, and the DHI to support people living with conditions such as Multiple Sclerosis (MS), COPD, stroke recovery, Cardiac arrest recovery, falls prevention and weight management. Our vision is simple: to help improve care, engagement, and outcomes through technology.
We are now looking for a Senior Product Engineer / Technical Lead to help drive the next stage of technical growth and platform evolution.
The Opportunity
This is a senior, hands-on engineering role combining software development, cloud infrastructure, technical leadership, and architecture. You will work closely with the leadership team and engineering function to shape the technical direction of the platform whilst remaining actively involved in development and delivery.
The successful candidate will bring strong experience across modern application development, cloud infrastructure, DevOps practices, and platform architecture. You will play a key role in mentoring engineers, improving engineering standards, and helping scale the platform as the business grows. You are someone who takes pride in clean, tested, maintainable code, balances independence with teamwork, and confidently drives your work forward.
This is an opportunity to influence technology decisions, guide best practice, and help build a product that has a genuine impact on people's lives.
Key Responsibilities
Technical Leadership
- Provide technical leadership across product development initiatives
- Contribute to architecture decisions and long-term technical strategy
- Guide engineering best practice, coding standards, and development processes
- Mentor and support developers across the engineering team, promoting a culture of collaboration, learning, and continuous improvement.
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Software Engineering
- Design, develop, and maintain scalable product features
- Build modern applications using React and React Native
- Support full lifecycle product development from concept through to deployment
- Collaborate closely with Product, Design, and Engineering teams
- Participate in code reviews and technical design discussions
Cloud Infrastructure & Platform Engineering
- Design and maintain cloud infrastructure within Microsoft Azure
- Build and manage Infrastructure as Code using Terraform
- Support containerised deployments using Docker
- Improve platform reliability, scalability, performance, and security
- Contribute to DevOps processes, CI/CD pipelines, and deployment automation
Data & Platform Architecture
- Support data architecture and platform design decisions, ensuring systems remain scalable, secure, and maintainable.
- Work across integrations, APIs, cloud services, and platform components
- Help shape the future architecture of the FHIR based platform
Skills & Experience
Essential
- Strong React and React Native experience.
- Microsoft Azure, Terraform, and Docker experience.
- Cloud infrastructure and platform engineering expertise.
- Experience designing and building scalable software solutions with a strong understanding of modern architecture principles.
- Experience supporting CI/CD and DevOps environments.
- Experience mentoring engineers and providing technical leadership.
- AI-Augmented Development: Proficient in using AI coding assistants (Copilot, Cursor, etc.) to accelerate delivery, while maintaining the critical eye needed to review, refactor, and ensure generated code meets company standards for security and maintainability.
Desirable
- Experience within healthcare technology or regulated environments
- Experience working on SaaS or product-based platforms
- Data architecture experience
- Experience working within growing technology businesses
- Exposure to Data Security, governance, and compliance frameworks
- Exposure to FHIR and international coding standards like SNOMED CT, LOINC, ICD10
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What We're Looking For
We are looking for someone who enjoys building products, leading by example, and helping teams succeed. You will be:
- Technically strong but highly collaborative, balancing hands-on delivery with technical leadership.
- Passionate about mentoring and developing others.
- Deeply inquisitive, innovative, and comfortable operating within a growing product business.
- Motivated by solving complex technical challenges that deliver real-world impact.
Why Join Daysi?
- Help shape the future of a rapidly growing healthcare technology platform.
- Work on products that genuinely and visibly improve people's lives.
- Directly influence the technical direction and core architecture decisions of the platform.
- Join a highly supportive, deeply inquisitive team alongside talented engineers, designers, and product specialists.
- Enjoy a high level of ownership, autonomy, and the freedom to truly drive your own work.
- Accelerate your career growth within a scaling business while building something genuinely meaningful.
If you're looking for an opportunity where you can combine technical leadership, cloud engineering, architecture, and product development while making a genuine difference, we'd love to hear from you.
What We Offer
- 35 hr week: Full-time hours are 35 with core operating hours of Monday - Thursday 9:30–4. Many of our team use this flexibility, with the majority taking Friday afternoons off.
- Flexible working: We operate a hybrid working model and expect our team to be able to travel into our Edinburgh office at least three days a week. However, each case is considered individually so we are always open to conversation.
- Enhanced annual leave: 30 days annual leave pro-rata. We don’t recognise bank holidays, so you’re free to use your 30 days whenever it suits you. On top of this allowance, we close the office between Christmas and New Year to give everyone additional days off.
- Pension contribution
- Bike to Work scheme
- Professional development budget: We are fully committed to continuous learning, providing a dedicated budget to help you develop and grow your career.
- Values-led team culture: Our values are deeply important to us and we make sure they are lived out in our day-to-day work, not tucked away in a folder.
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