Senior Python Platform Engineer — Scale High-Load, Async

Manychat; Barcelona; Híbrido; EUR 70.000 - 110.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Hybrid onboarding with remote start

Health insurance for you and family

Professional development budget

Flexible benefits package

Hybrid work & generous leave

In-office meals & snacks

Company-funded sports activities & off

Descripción de la vacante

Manychat in Barcelona is seeking a Senior Python Engineer to design and evolve a Python-based platform layer that extends and scales Manychat’s core engineering stack. You will help decouple complexity from the core platform and enable scalable execution of business logic across services.

You’ll own API contracts between systems, drive reliability through observability, and collaborate with Platform and Product teams to align architecture with business needs, contributing to long-term platform

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).
• 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 — able to align with stakeholders and connect engineering work to 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 between core and Python services.
• Develop scalable, async services handling high-load and latency-sensitive workflows.
• Own API contracts between systems, ensuring stability, backward compatibility, and clear boundaries.
• Identify and extract functionality from the core into scalable services where it improves performance or maintainability.
• 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.
• Work closely with Platform and Product teams to align architecture with business needs.
• Contribute to long-term platform scalability, not just feature delivery.

Conocimientos

5+ years of commercial Python develp.

FastAPI

Django/Flask

AsyncIO

APIs integration

PostgreSQL

NoSQL knowledge

Testing with PyTest

CI/CD

Herramientas

Docker

PostgreSQL

CI/CD pipelines

Descripción del empleo

Manychat in Barcelona is seeking a Senior Python Engineer to design and evolve a Python-based platform layer that extends and scales Manychat’s core engineering stack. You will help decouple complexity from the core platform and enable scalable execution of business logic across services.

You’ll own API contracts between systems, drive reliability through observability, and collaborate with Platform and Product teams to align architecture with business needs, contributing to long-term platform