Senior Fullstack AI Developer (Python + React)

At Devsu we are looking for an experienced Full Stack Developer who can architect and build an innovative AI-powered RPG content creation platform for a major publishing client. This is a high-impact, fast-paced project where you'll work directly with a Technical Principal, client stakeholders, and a cross-functional Agile team.

This role requires someone who can move quickly, make smart architectural decisions under pressure, work collaboratively in pair programming sessions, and balance technical excellence with pragmatic delivery. You'll be building the core AI engine and backend infrastructure that powers complex, stateful content workflows.

Work remotely from anywhere in Latam!

Responsibilities:

• Design and develop backend services leveraging RAG architectures to deliver intelligent, context-aware responses.
• Build and optimize integrations with LLM providers (e.g., OpenAI, Bedrock), ensuring performance, scalability, and cost efficiency.
• Develop modern user interfaces using React and TypeScript.
• Build Python-based APIs and microservices deployed via AWS Lambda (Serverless Framework); contribute to Node.js services where needed.
• Work with and integrate multiple data sources, including PostgreSQL, Snowflake, and DynamoDB.
• Collaborate with frontend, data, and DevOps teams to ensure smooth deployment and integration of AI-driven features.
• Implement monitoring, logging, and performance optimization for AI pipelines and services (CloudWatch, etc.).
• Maintain security best practices for data handling, authentication, and API usage.
• Continuously evaluate and recommend new AI tools, frameworks, and best practices.

Qualifications:

• 3+ years of experience building production-grade web applications.
• Strong experience in AI/LLM development, working with APIs such as OpenAI, Anthropic, or AWS Bedrock.
• Proven expertise in prompt engineering, RAG systems, context management, and cost optimization.
• Strong backend development skills in Python, including API design, distributed systems, and serverless architectures
• Hands-on experience with the AWS ecosystem (Lambda, ECS, S3, RDS, DynamoDB, CloudWatch, etc.).
• Experience working with React + TypeScript on the frontend.
• Solid experience with databases: PostgreSQL, Snowflake, DynamoDB.
• Experience in Agile/Scrum environments.
• Comfortable with pair programming and collaborative development.
• Ability to prioritize and adapt in fast-paced environments.
• Strong communication skills with both technical and non-technical stakeholders.

Skills & Tools

• Languages: Python, React, Go, TypeScript/Node.js
• AI/LLM: OpenAI API, AWS Bedrock, LangChain, semantic search, vector databases
• Cloud: AWS services (Lambda, ECS, RDS, DynamoDB, S3, API Gateway, CloudWatch)
• Infrastructure: Terraform or CloudFormation, Docker, CI/CD pipelines
• Databases: PostgreSQL, DynamoDB, Redis, or similar
• APIs: RESTful design, GraphQL, WebSocket connections
• Testing: Unit testing, integration testing, test automation frameworks

At Devsu, we believe in creating an environment where you can thrive both personally and professionally. By joining our team, you'll enjoy:

• A stable, long-term contract with opportunities for professional growth
• Private health insurance
• A remote culture that promotes work-life balance
• Ongoing training, mentoring, and learning programs to keep you at the forefront of the industry
• Free access to AI training resources and cutting-edge AI tools to enhance your daily work
• A flexible paid time off (PTO) policy and paid holidays
• Challenging, world-class software projects for clients in the U.S. and Latin America
• Collaboration with some of the most talented software engineers in Latin America and the U.S., in a diverse work environment

Join Devsu and discover a workplace that values your growth, supports your well-being, and empowers you to make a global impact.