WHO WE ARE ?
Manychat is a leading chat marketing platform, helping businesses engage with their customers on Instagram, Facebook Messenger, WhatsApp, and Telegram. Trusted by over 1 million brands in 170+ countries, we're an official Meta Business Partner, backed by Bessemer Venture Partners. With 400+ teammates across offices in Austin, Barcelona, Yerevan, São Paulo, and Amsterdam — we're building the infrastructure of conversational commerce.
WHO WE'RE LOOKING FOR ?
We’re hiring a Senior Python Engineer to build and evolve a Python-based platform layer that extends and scales Manychat’s eng core.
This is not a standalone backend. This layer acts as a bridge and execution environment for high-load, business-critical workflows that cannot be efficiently handled inside the core system.
Your primary focus will be designing systems that:
decouple and offload complexity from the core platform
enable scalable execution of business logic
provide reliable communication between services
This role is idóneo for someone who:
thinks in systems, not services




understands trade-offs of distributed architectures
can turn loosely defined problems into stable production solutions
is comfortable working close to platform boundaries and constraints
WHAT YOU'LL DO ?
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,

📌 Senior Python Engineer, Billing (Barcelona)
🏢 Manychat
📍 Barcelona