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 **Requirements** 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 **Benefits** 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.