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4,030

Backend jobs in Brazil

Python/Fastapi Development

Highbrow Technology Inc

Mauá
Remote
BRL 120,000 - 160,000
2 days ago
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Analista Desenvolvedor – Peoplesoft Crm Ps8 / Java

Sysmap Solutions

Ribeirão Preto
On-site
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor(A) Fullstack Java + Angular Sênior

Zukk

Porto Velho
Remote
BRL 120,000 - 150,000
2 days ago
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Desenvolvedor(A) Ios Sênior

Foursys

Belo Horizonte
Remote
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor Ios

Foursys

Lagoa Santa
Remote
BRL 80,000 - 120,000
2 days ago
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Analista Desenvolvedor - Peoplesoft Crm Ps8 / Java

Sysmap Solutions

Feira de Santana
On-site
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor Ios

Foursys

Belém
Remote
BRL 80,000 - 120,000
2 days ago
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Contractpower: Master Your Energy Contracts And Regulations In Seconds

Volta Redonda
Remote
BRL 120,000 - 160,000
2 days ago
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Desenvolvedor Ios

Foursys

Itabirito
Remote
BRL 80,000 - 120,000
2 days ago
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Analista Desenvolvedor - Peoplesoft Crm Ps8 / Java

Sysmap Solutions

Votorantim
On-site
BRL 80,000 - 120,000
2 days ago
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Analista Desenvolvedor – Peoplesoft Crm Ps8 / Java

Sysmap Solutions

Ijuí
On-site
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor Ios

Foursys

Várzea Grande
Remote
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor(A) Fullstack Java + Angular Sênior

Zukk

Petrolina
Remote
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor Ios

Foursys

Chapecó
Remote
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor(A) Fullstack Java + Angular Sênior

Zukk

Cuiabá
Remote
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor Ios

Foursys

Franco da Rocha
Remote
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor(A) Fullstack Java + Angular Sênior

Zukk

Jundiaí
Remote
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor(A) Fullstack Java + Angular Sênior

Zukk

Macapá
Remote
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor(A) Fullstack Java + Angular Sênior

Zukk

Maringá
Remote
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor Ios

Foursys

Guaíba
Remote
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor(A) Backend Java/ Cloud Sr

Foursys

São José dos Campos
Remote
BRL 120,000 - 160,000
2 days ago
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Desenvolvedor Ios

Foursys

Itu
Remote
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor(A) Fullstack Java + Angular Sênior

Zukk

Rio Verde
Remote
BRL 80,000 - 120,000
2 days ago
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Desenvolvedor(A) Backend Java/ Cloud Sr

Foursys

Jaguariúna
Remote
BRL 120,000 - 160,000
2 days ago
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Analista Desenvolvedor - Peoplesoft Crm Ps8 / Java

Sysmap Solutions

Arapongas
On-site
BRL 80,000 - 120,000
2 days ago
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Python/Fastapi Development
Highbrow Technology Inc
Remote
BRL 120,000 - 160,000
Full time
2 days ago
Be an early applicant

Job summary

A technology firm is seeking a skilled Python Developer with strong expertise in FastAPI to work on a Reinforcement Learning project. The role involves designing and maintaining FastAPI services, collaborating with machine learning engineers, and writing efficient backend code. Candidates should have 4+ years of Python experience, including substantial FastAPI knowledge, and a degree in Computer Science or related fields. The position allows for work from various countries including Brazil, offering flexible remote engagement.

Qualifications

  • 4+ years of professional Python development experience including 3+ years of strong experience in FastAPI.
  • Experience with REST APIs, async programming, and API lifecycle management.
  • Solid understanding of software engineering best practices.

Responsibilities

  • Design, build, and maintain FastAPI-based services for experimentation workflows.
  • Collaborate with ML engineers to expose APIs for various tasks.
  • Write efficient, scalable, production-grade Python code.

Skills

Python development
FastAPI
REST APIs
Async programming
Software engineering best practices

Education

Bachelor’s or Master’s degree in Computer Science

Tools

NumPy
Pandas
PyTorch
TensorFlow
Job description
Role- Python / FastAPI Development

Location-Pakistan, Nigeria, Kenya, Egypt, Ghana, Bangladesh, Turkey, Brazil, Mexico

YoE - 4 + years

Engagement Length- 2 Months

Commitment Required

8 hours per day and 40 hours per week with an overlap of 4 hours with PST.

Role Overview

We are seeking a Python Developer with strong expertise in FastAPI to join an exciting Reinforcement Learning (RL) Gym project. You will design, build, and optimize scalable APIs, collaborate with researchers and engineers, and deliver high-quality backend services to support reinforcement learning experiments and simulations. Prior RL Gym experience is not mandatory but would be a plus.

What does day-to-day life look like?
  • Design, build, and maintain FastAPI-based services for experimentation workflows and simulation environments.
  • Collaborate with ML engineers to expose APIs for training, evaluation, and benchmarking.
  • Write efficient, production-grade Python code with a strong emphasis on scalability and maintainability.
  • Troubleshoot performance issues, optimize pipelines, and ensure smooth deployment of applications.
Requirements
  • 4+ years of professional Python development experience including 3+ years of strong experience in FastAPI
  • Experience with REST APIs, async programming, and API lifecycle management.
  • Solid understanding of software engineering best practices (testing, CI / CD, version control, design patterns).
  • Familiarity with NumPy, Pandas, and PyTorch / TensorFlow is a plus.
  • Good to have : Exposure to Reinforcement Learning environments (OpenAI Gym, Gymnasium, Stable Baselines, or custom environments) & SQL experience
  • Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
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* The salary benchmark is based on the target salaries of market leaders in their relevant sectors. It is intended to serve as a guide to help Premium Members assess open positions and to help in salary negotiations. The salary benchmark is not provided directly by the company, which could be significantly higher or lower.

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