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Senior Backend EngineermyTomorrows · Amsterdam HQ
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myTomorrows

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Senior Backend Engineer

🗓️ Posted 2026-10-01 Amsterdam HQ Fulltime Hybrid ICT
💰 Salary Not shared 📊 Market 5,500 EUR–7,500 EUR/mo

About the Company

About myTomorrows myTomorrows is a global health tech company dedicated to breaking down barriers for patients seeking treatment options. We strive to enable earlier and better treatment access by bridging the gap between those searching for possible options, and the companies who develop them. We work closely with patients, healthcare professionals, trial sites, patient advocacy groups, and BioPharma - connecting key stakeholders in the drug development ecosystem. We've developed a cutting-edge AI-powered technology platform that simplifies and streamlines access to drugs in development. To support our users and clients, we have a range of industry-expert specialized teams ready to help. Our services include clinical trial patient recruitment, Expanded Access Program management and Real-World Data collection. With a global footprint spanning 134 countries, to date we've supported over 17,000 patients, 3,000 physicians and 350 sites, earning the trust of 60+ BioPharma companies. In October 2025, we closed a 25M investment with Avego Healthcare Capital to fuel our global ambitions and scale the business. Join us in shaping the future of treatment access - making tomorrow's therapies accessible for people who need them today.

About the Role

As a Senior Backend Engineer, you will be responsible for developing and maintaining the platform infrastructure that powers our products. You will work closely with our Frontend Engineers, DevOps Engineers, and other stakeholders to design and build scalable, reliable, and high-performance products. Given that most of our team is located in the Netherlands, we only consider candidates for this position who live within commuting distance to our office in Amsterdam.

Responsibilities

  • ● Design and implement scalable and reliable backend systems and infrastructure to support our products
  • ● Develop and maintain our micro-services to expose platform functionality to internal and external clients
  • ● Collaborate with development and quality assurance teams to ensure high availability, scalability, and security of our systems
  • ● Collaborate with DevOps Engineers to ensure the continuous delivery and deployment of software products
  • ● Work with software developers to identify and implement improvements to our platform architecture and functionality
  • ● Develop and maintain documentation of our systems and processes
  • ● Mentor and train junior members of the backend team
  • ● Keep up-to-date with the latest trends and technologies
  • ● What you bring to the table:
  • ● Proficiency in Python programming language
  • ● + years of experience in the related field
  • ● Excellent problem-solving skills and ability to work independently and as part of a team
  • ● Strong communication skills and the ability to work with stakeholders across the organization
  • ● Excellent English communication skills
  • ● What succes in the first six months looks like:
  • ● You've built trust with Product, Frontend, and DevOps peers and taken clear ownership of 2-3 domain APIs/services, including stewardship of their contracts and SLAs.
  • ● You've established an API-first workflow: starting from use cases, you propose and socialize OpenAPI specs, align on naming and conventions, then implement in FastAPI with Pydantic models.
  • ● You've delivered impactful API features end-to-end (design implementation tests docs) that are consumed by internal and external clients without hand-holding.
  • ● You've raised API robustness: strong request/response validation, consistent error models, pagination and idempotency where appropriate, and backward-compatible versioning enforced via automated contract tests in CI (Ruff, UV, Prek).
  • ● You've improved the reliability and performance of our service by adding meaningful observability (metrics, logs, tracing) and defining SLIs/SLOs for key endpoints-reducing 5xx rates and improving p95 latency.

Benefits

  • ● Impactful work that helps patients gain access to potentially lifesaving treatments.
  • ● International work environment, scale-up energy and a flat organizational structure that encourages creativity and accountability.
  • ● Competitive salary, annual performance bonus and an Employee Stock Option Plan.
  • ● Great career development opportunities in a fast-growing company.
  • ● Learning and development budget alongside internal knowledge sharing sessions.
  • ● Attractive pension plan, full premium covered by myTomorrows.
  • ● Hybrid working model.
  • ● Policies to support working parents.
  • ● Healthy lunch at the thriving Amsterdam office.
  • ● Unlimited access to professional guidance by certified psychologists via OpenUp
  • ● Enjoy monthly events hosted by our vibrant Culture Club as well as an annual 'myTomorrowland' company-wide celebration
  • ● Equal opportunities
  • ● myTomorrows is an Equal Opportunity Employer and, beyond upholding discrimination-free practices, we are committed to cultivating a workplace where difference and diversity are protected and celebrated. The best work comes from our best selves, and we go to great lengths in supporting our team members to be just that.