Middle+ Backend Developer (Python)

Call2action AI is a fast-growing startup (founder-led) building HR/AI products for the US market. We are seeking a strong Middle+ Backend Engineer who enjoys clean code, is quick to grasp new technologies, and wants to influence the product.

What you'll be doing:

• Design and develop backend services and REST APIs in Python (FastAPI / Django / Flask).
• Integrate third-party services and data providers.
• Work with relational databases (PostgreSQL, MySQL): schemas, query optimization, migrations.
• Write tests, conduct code reviews, improve performance and fault tolerance.
• Collaborate with product/design/frontend teams, maintain technical documentation.

Requirements:

• 4+ years of commercial Python development experience. 
• Strong experience with FastAPI and/or Flask, Django.
• Ability to design and maintain REST APIs.
• Excellent knowledge of SQL, experience with PostgreSQL/MySQL.
• Docker, Git (code review, branch strategies).
• Understanding of OOP, patterns, testing and optimization principles.
• Teamwork, responsibility, independence, and a quick learner.

A plus:

• Experience with Microsoft Azure: App Service, Azure Functions, storage, monitoring.
• Configuring CI/CD in Azure DevOps, releasing stable releases.
• Async Python, Celery/RQ, Redis/RabbitMQ.
• GraphQL/gRPC.
• IaC/Kubernetes (basic), web application security.
• Observability: logging, metrics, tracing.

What we offer:

• Competitive compensation (based on experience).
• Ownership of a key growth area in a fast-moving, founder-led startup.

• A strong, close-knit team—smart and energetic people who move fast, support each other, and are results-oriented.

   

Let's build the future of hiring together!