Project description The Engineer will develop Python 3.10 backend services, Backend-for-Frontend (BFF) APIs, integrate application workflows into CryoFlow, and deliver new product features.
Responsibilities
Contribute to the refactor of existing backend capabilities into Python 3.10 services aligned with CryoFlow architecture and deployment practices.
Create and maintain BFF services using FastAPI and Uvicorn, exposing clear API routes for product workflows, integration screens and front-end consumers.
Help define service boundaries in a microservice architecture, with a pragmatic approach to simplifying or consolidating backend services when it improves maintainability.
Integrate workflows into CryoFlow, including vitrification experiments, worklists, grid details, user/session consistency and navigation between application contexts.
Help the team design, implement and deliver new product features after the initial integration work, with ownership from analysis to tested delivery.
Implement backend logic for status updates, validation, data persistence, device/session edge cases, report-generation helpers and user-facing error handling.
Collaborate with front-end developers on Angular integration; Angular v17 or similar modern Angular experience is a strong plus for debugging and small feature delivery.
Write and maintain tests for Python services and integration flows, including API tests, BFF route tests, mocked external calls and regression tests for known issues.
Investigate and fix product behavior issues by reading logs, reproducing scenarios, checking data consistency and validating fixes end to end.
Work with DevOps and CI/CD owners on deployment-related needs such as Docker images, pipeline behavior, SBOM/release build expectations and environment validation.
Use Kubernetes knowledge when available to inspect pods, readiness/liveness behavior, service health, configuration and deployment problems in DEV or integration environments.
Document API behavior, BFF
responsibilities
and known edge cases so the team can operate and evolve the integrated product sustainably. SKILLS Must have • · Solid Python development experience, ideally with Python 3.10 in backend services or API-oriented applications. · Hands-on experience with FastAPI and Uvicorn, including route design, validation, dependency injection patterns, async behavior and operational logging. · Experience creating or maintaining BFF layers that adapt backend/domain services for front-end workflows. · Good understanding of REST APIs, data validation, error handling, service-to-service calls and backend integration testing. · Familiarity with microservice architecture and the trade-offs around splitting, combining or simplifying services. · Ability to debug product issues across backend code, API responses, logs, databases, front-end symptoms and deployment state. · Strong autonomy and ownership, with enough communication discipline to keep product, QA and other developers aligned. · A practical testing mindset: unit tests, API tests, integration tests, mocks/fixtures and regression checks for realistic product scenarios.
Nice to have
Angular v17 experience is a major plus, especially for integrating BFF routes with user workflows and helping with front-end debugging.
Experience with Kubernetes basics: pods, services, logs, readiness/liveness probes, ConfigMaps, secrets and deployment troubleshooting.
Experience with Docker and CI/CD pipelines, especially for Python services, release builds, SBOM generation and automated test execution.
Experience helping a team develop a product after initial delivery, including triage, reproduction, root-cause analysis and close collaboration with QA.
Knowledge of authentication/session handling, token refresh and multi-user edge cases.
Familiarity with scientific, device-driven or laboratory workflows where state transitions and data consistency are important.