Senior Python Platform Engineer — Scalable, Async Systems

Doist; Barcelona; Híbrido; EUR 90.000 - 120.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Hybrid onboarding

Health insurance for family

Professional development budget

Flexible benefits

Hybrid work

Free meals and snacks

Annual offsites & team events

Descripción de la vacante

Manychat is seeking a Senior Python Engineer to design and evolve a Python-based platform layer that integrates with the core system. You will define patterns for service communication and orchestration while delivering scalable, async services for high-load workflows.

The role emphasizes API contracts, reliability, and observability, with close collaboration to align architecture with business goals and long-term platform scalability.

Formación

• 5+ years of commercial Python development in production environments.
• Strong expertise in modern Python frameworks (FastAPI preferred; Django/Flask acceptable).
• Solid experience designing and integrating APIs (including third-party services).
• Strong understanding of async programming and concurrency (AsyncIO, non-blocking I/O).
• Experience with PostgreSQL and large datasets.
• Experience building and maintaining high-load backend systems.
• Strong testing practices (unit and integration tests; PyTest preferred).
• Experience with CI/CD pipelines and Docker.
• Strong ownership and product mindset - align with stakeholders and business impact.

Responsabilidades

• Design and build a Python-based platform layer that integrates with the core system.
• Define and evolve patterns for service communication, orchestration, and responsibility split.
• Develop scalable, async services handling high-load and latency-sensitive workflows.
• Own API contracts between systems, ensuring stability and backward compatibility.
• Extract functionality from the core into scalable services where it improves performance.
• Ensure reliability of cross-system interactions through observability (monitoring, logging, tracing).
• Design for failure: retries, idempotency, consistency guarantees.
• Drive engineering quality: testing strategy, CI/CD, safe rollout practices.
• Collaborate with Platform and Product teams to align architecture with business needs.
• Contribute to long-term platform scalability, not just feature delivery.

Conocimientos

Python development

FastAPI

Django/Flask

Async programming

API design

PostgreSQL

Distributed systems

Testing with PyTest

CI/CD

Docker

Herramientas

Docker

Descripción del empleo

Manychat is seeking a Senior Python Engineer to design and evolve a Python-based platform layer that integrates with the core system. You will define patterns for service communication and orchestration while delivering scalable, async services for high-load workflows.

The role emphasizes API contracts, reliability, and observability, with close collaboration to align architecture with business goals and long-term platform scalability.