Senior Python Engineer (Billing)

Amsterdam, North Holland, Netherlands

We help creators get more out of every conversation with Instagram-focused automations and support for other channels like Messenger, WhatsApp, and TikTok. The result? Better engagement, more sales, and real, sustainable growth.

With a diverse team of 350+ people across three continents, we’re building the leading Chat Marketing platform — trusted by more than 1.5 million customers worldwide. AI is one of our top strategic priorities. We’re building intelligent, production-grade systems that power conversations at scale — and we’re just getting started.

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 ideal 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, 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.

TO SHINE IN THIS ROLE 💥

You’ll need:

• 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 working 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.

It would be great if you have:

• Experience working with loaded projects and queue systems.

• Skills working with infrastructure.

• Experience working with third-party API.

• Knowledge of different NoSQL solutions and analytical systems.

• Replication, partioning, sharding, PL/pgSQL, and other attributes of profound work with databases.

WHAT WE OFFER 🤗

We care deeply about your growth, well-being, and comfort:

• 🌍 Hybrid onboarding to start remotely and relocation support for you and your family.

• 💙 Comprehensive health insurance for you and your family.

• 📚 Professional development budget for conferences, courses, and learning resources.

• 🫶 Flexible benefits package tailored to your priorities.

• 🪴 Hybrid work and generous leave options for work-life balance.

• 🍽️ In-office perks including free meals and snacks.

• 🤝 Company-funded sports activities, annual offsites, and team-building events.