6 hours ago
Vancouver, CanadaSenior
Responsibilities
- Own the patient communications platform end to end, including architecture, rollout, on-call standards, and technical roadmap.
- Build scalable Python and AWS event-driven backend services using EventBridge, SQS/SNS, Lambda, and ECS.
- Implement reliable exactly-once message delivery with idempotency, deduplication, retries, backoff, dead-letter handling, replay, and message status tracking.
- Implement consent, channel and category preferences, unsubscribe and STOP propagation, quiet hours, and transactional-versus-marketing message separation.
- Build least-privilege tooling for reviewed one-off and bulk sends with audience previews, test sends, rate limits, and kill switches.
- Design and ship OpenAPI-first, versioned, backward-compatible patient APIs for web and mobile clients and help migrate consumers from legacy GraphQL.
- Improve reliability, observability, and incident response using Datadog.
- Write automated tests, improve engineering quality, lead design discussions, review implementations, mentor engineers, and influence architecture.
- Collaborate with Product, Design, Lifecycle Marketing, Clinical, and engineering teams while using AI coding tools thoughtfully.
Requirements
- 7+ years of backend engineering experience owning production services, ideally with Python or a similar language such as Ruby, Go, or Node.js.
- Strong experience designing and building REST APIs with contract design, versioning, and error handling in a modern backend framework.
- Hands-on AWS experience, including event-driven systems and modern CI/CD practices.
- Experience with distributed systems, external APIs and webhooks, idempotency, retries, rate limits, and partial failure handling.
- Deep relational database knowledge, particularly PostgreSQL, plus experience with NoSQL databases such as DynamoDB and caching systems such as Redis.
- Experience implementing authentication and authorization with OAuth2, JWT, and service-to-service security.
- Experience writing comprehensive backend tests and maintaining strong test coverage, such as with Pytest.
- Experience with monitoring and observability tools such as Datadog or similar platforms.
- Ability to independently lead complex initiatives, make technical decisions, manage on-call and incident response, and balance delivery with maintainability.
- Ability to decompose complex projects, work through ambiguity, communicate effectively, and collaborate across engineering and business teams.
- Preferred experience includes Iterable or similar customer engagement platforms, including Braze, Customer.io, Klaviyo, and Salesforce Marketing Cloud.
- Preferred experience includes large-scale SMS with Twilio or similar providers, 10DLC, short codes, opt-in and STOP handling, and carrier compliance.
- Preferred experience includes push notifications with APNs and FCM, device token lifecycle management, and mobile deep linking.
- Preferred experience includes email delivery, AWS SES, SPF/DKIM/DMARC, bounce and complaint handling, and suppression lists.
- Preferred experience includes multi-channel notification orchestration, preference centers, frequency capping, scheduled messaging, GraphQL, Backend-for-Frontend patterns, and collaboration with iOS and Android teams.
- Familiarity with FHIR, Terraform, Docker, GitHub Actions, and highly regulated industries involving sensitive health data is preferred.
Benefits
- Flexible hybrid onboarding is available, with a preference for candidates based in Vancouver, BC.
- Employees receive free whole-body scans.
- The company offers growth opportunities, weekly team connection and social activities, and a flexible vacation policy.
- Comprehensive health, dental, vision, and mental health coverage is offered.
- Eligible Canadian employees can access RRSP and TFSA retirement savings plans with immediate optional enrollment; there are currently no matching contributions.
- Successful candidates undergo a background check.
Tech Stack
Categories
About Prenuvo
Prenuvo builds and operates clinics that offer fast, radiation-free whole-body MRI scans for proactive health screening. The company sells scan services and detailed reports directly to consumers and referring clinicians, supported by its hardware, software, and AI stack. It is privately held, headquartered in Redwood City, California, and currently operates 26 clinics across North America, Australia, and Europe.