Backend Developer - Pleno

Osf Digital; Teletrabalho; BRL 120.000 - 160.000; Tempo integral

Resumo da oferta

A global digital transformation company is seeking a Backend Developer - Pleno to enhance ML features and backend systems. You will work with Python, FastAPI, and various databases while collaborating with data scientists in a remote setting. A minimum of 2 years of backend engineering experience is required, along with strong skills in containerization and database management. This position provides an inclusive work environment focused on professional growth.

Qualificações

• Over 2 years of experience in backend engineering with asynchronous Python.
• Extensive knowledge of modern Python features and testing frameworks.
• Production experience building RESTful APIs with FastAPI.

Responsabilidades

• Collaborate with data scientists to define ML feature requirements.
• Design and implement backend systems for ML applications.
• Optimize databases and improve observability for distributed workloads.

Conhecimentos

Backend engineering

Python (async/await)

API development (FastAPI)

Database management (Postgres, MongoDB)

Containerization technologies (Docker, Kubernetes)

LLM integration

CI/CD pipelines

Good English proficiency

Communication skills

Ferramentas

Docker

FastAPI

Postgres

MongoDB

Kubernetes

OpenAI APIs

Descrição da oferta de emprego

Backend Developer - Pleno

Collaborate with data scientists and ML engineers to understand requirements for ML / LLM features. Design, implement, maintain, improve, and document backend systems (Python, FastAPI) for ML / LLM features. Manage and optimize databases (Postgres, MongoDB, Milvus) for application storage. Improve observability and reliability for distributed, async workloads (structured logging, metrics, retry / backoff strategies, traces). Help maintain and orchestrate containerized development workflows (uv, Docker, Docker Compose, Kubernetes) and CI checks. Raise the bar for testing (unit + integration) to ensure high code quality and reliability. Improve the local development experience for the team by establishing and promoting Python-based development standards and best practices. Integrate and optimize calls to LLM APIs (OpenAI) and agentic frameworks (OpenAI Agents SDK). Mentor other engineers and drive architectural decisions.

Requirements

• Experience in backend engineering, specifically in building production services, with over 2 years of expertise in working with asynchronous Python.
• Extensive Python knowledge : async / await, typing system, modern Pydantic (v2), and testing frameworks (pytest).
• Production experience building RESTful APIs with FastAPI and ASGI servers (uvicorn).
• Solid operational and debugging skills for async systems and distributed services.
• Strong familiarity with Postgres and MongoDB databases.
• Experience with vector search systems (Milvus, FAISS, Pinecone) and embedding pipelines.
• Experience with message queues, background processing, and patterns for batch processing, idempotency, and retries.
• Practical experience integrating with OpenAI or other LLM providers.
• Comfortable working with containerization technologies (Docker, Docker Compose, Kubernetes).
• Familiarity with AWS services (EKS, ECS, S3).
• Familiarity with CI / CD pipelines (Jenkins, GitHub Actions).
• Good communication skills and ability to work effectively in a remote team environment.
• Good English proficiency (reading, writing, speaking).

OSF Digital is proud to be an equal opportunity employer, where you can bring your whole self to work. Join an inclusive and passionate community of professionals who help bring about digital transformation for businesses around the world. At OSF Digital, we welcome all individuals and do not discriminate on the basis of gender identity and expression, race, ethnicity, disability, sexual orientation, color, religion, national origin, age, marital status, or any other protected category in any of the jurisdictions in which we conduct business.