Pre-screened and vetted.
Mid-level Software Development Engineer specializing in cloud platforms, data engineering, and LLM apps
Intern Software Engineer specializing in data science and network visualization
Mid-Level Software Engineer specializing in AWS cloud-native distributed systems
Senior Full-Stack Software Engineer specializing in cloud-native microservices and AI/ML
Entry-Level Software Development Engineer specializing in AWS serverless and distributed systems
Senior Full-Stack Engineer specializing in scalable platforms across insurance, media, and finance
Intern Software Engineer specializing in AI/ML and LLM retrieval systems
Mid-level Machine Learning Engineer specializing in LLMs, RAG, and GPU-accelerated cloud systems
Mid-level Full-Stack Engineer specializing in AI platforms and FinTech
Senior Backend Engineer specializing in Healthcare & Cloud Platforms
Mid-Level Full-Stack Software Developer specializing in AWS cloud and automation
Senior Backend Software Engineer specializing in AWS serverless and data pipelines
Senior Backend Engineer specializing in Python and cloud data platforms
Intern Full-Stack Software Engineer specializing in distributed systems and cloud services
Senior Software Engineer specializing in generative AI and real-time platforms
Engineering Manager and ML/Data Architect specializing in scalable data platforms and personalization
“Hands-on engineering manager at a marketing company leading a highly senior, distributed team (10 direct reports) while personally coding ~60–70% and owning end-to-end architecture across three interconnected products. Built agentic CRM automation and a reinforcement-learning-driven distribution layer for channel spend/bidding, with a strong focus on scalable design and observability (Prometheus/APM/logging) enabling frequent releases and few production incidents.”
Senior Software Engineer specializing in developer tools, cloud automation, and generative AI
“Built and deployed a production chatbot on osvaldocalles.com and iterated through real-world LLM engineering issues: model quota/cost tradeoffs (migrating to Nova Pro), RAG accuracy via semantic chunking, AWS IAM/guardrail/security pitfalls, and Lambda/API Gateway streaming constraints (prefers JS for streaming layer). Experienced with agent orchestration using Strands SDK (AWS-focused) and LangGraph (Vercel/container deployments), plus evaluation pipelines using LLM-as-evaluator, dashboards, and staged model rollouts.”
Executive engineering leader specializing in FinTech platforms and cloud-native systems
“Motivated by the desire to work independently after spending significant time working for others. Demonstrated notable discipline and follow-through by completing a Master's program with great grades while managing a full-time job, family with two children, and a social life.”