AI Lead Developer (Python, React & AWS)

Our client is seeking a Lead Developer to architect and build an innovative AI-powered RPG content creation platform for a major publishing company. 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. Responsibilities Architecture & Technical Leadership Design and implement scalable backend architecture for AI-assisted content generation workflows Build and optimize LLM integration layers with focus on prompt engineering, context management, and token efficiency Collaborate with Technical Principal on system design and infrastructure decisions AI & LLM Development Integrate and optimize OpenAI GPT-4 and/or AWS Bedrock LLM APIs for content generation Design prompt architectures that handle complex branching logic and narrative coherence Build API metering and cost tracking systems to monitor token consumption and optimize unit economics Develop versioning and state management systems for AI-generated content edits Backend & Infrastructure Build RESTful APIs and backend services on AWS infrastructure Implement authentication, authorization, and data security best practices Design database schemas and data persistence strategies for complex content structures Set up CI/CD pipelines, monitoring, and logging infrastructure Agile Collaboration & Delivery Participate in daily pair programming sessions with other developers and designers Lead technical discussions in daily standups, sprint planning, and retrospectives Mentor junior developers and share knowledge with the broader team

Core Experience 8+ years of software engineering experience building production web applications Deep expertise in AI/LLM development - hands-on experience building applications with OpenAI, Anthropic, or AWS Bedrock APIs Proven experience with prompt engineering, context window management, RAG systems, and AI cost optimization Strong backend development skills – Python, API design, database architecture, distributed systems Deep expertise in designing and building systems on AWS - Lambda, ECS, RDS, S3, CloudWatch, etc. Experience with Agile/Scrum methodologies and iterative development practices Pair programming experience - comfortable working synchronously with other developers Ability to task-switch rapidly and reprioritize in fast-moving, high-stakes environments Excellent English communication skills 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 Nice to have Experience building generative AI applications at production scale Background in content management systems, publishing platforms, or creative tools Familiarity with mobile backend development (iOS/Android) Prior work with publishing, media, or RPG

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.