Pre-screened and vetted in the Greater Seattle.
Senior Engineering Manager specializing in cloud security and graph-based data platforms
“Engineering leader at Sysdig Secure who pitched and prototyped a model data platform that initially got rejected, then proved value by migrating the CIEM offering and expanding adoption across multiple verticals. Now owns the CIEM suite plus the broader Sysdig Secure data and reporting platforms, manages 14 direct reports, and also leads a pilot AI team while remaining hands-on weekly.”
Mid-level Software Engineer specializing in distributed backend systems on AWS
“Built production systems in the AWS ecosystem, including an internal AI assistant for diagnosing account transfer and permissions issues and an end-to-end account transfer workflow used by enterprise customers. Stands out for combining LLM/RAG design with strong distributed systems reliability practices, emphasizing guardrails, fallbacks, and operational trust in high-stakes workflows.”
Senior Software Engineer specializing in AWS-based distributed systems and FinTech platforms
“Backend engineer with Amazon experience building large-scale, automated financial/accounting and pricing systems on AWS. Designed a fault-tolerant Step Functions + DynamoDB workflow platform handling 100K+ messages/sec to compute fair values and generate journal entries in under 3 seconds, and led safe API refactors using shadow mismatch testing. Also uncovered a major legacy pricing bug (tax vs non-tax swap) that cut mismatch rates from 5–10% to ~0.5% and materially improved price acceptance/business outcomes.”
Mid-Level Full-Stack Software Engineer specializing in mobile and web platforms
“iOS-focused engineer who led feature development for Amazon Books/Kindle (e.g., Series & Story So Far recaps, Kindle Memories) and introduced pure Swift packages while building sync and content download systems. Also has full-stack experience (React/TypeScript + Node with REST/GraphQL) and strong AWS operations (CDK/CI-CD, CloudWatch, canaries, autoscaling), plus founder experience at GLXY.ai shipping an early hardware MVP (weight sensors) under tight constraints.”
Mid-Level Software Engineer specializing in distributed systems and AI agent platforms
Senior Software Engineer specializing in AI/LLM and distributed cloud systems
Intern Software Engineer specializing in full-stack and distributed systems
Director-level Software Development Manager specializing in AWS and GenAI platforms
Mid-level Full-Stack Software Engineer specializing in distributed systems and GenAI platforms
Senior Full-Stack Engineer specializing in telehealth and commerce platforms
Senior QA Engineer specializing in AI/LLM, automation, and performance testing
Senior Frontend Software Engineer specializing in React, TypeScript, and UI infrastructure
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.”
Mid-level Software Engineer specializing in backend systems and cloud data platforms
“Candidate is a hands-on engineer using AI as a controlled coding partner rather than an autonomous decision-maker. They have practical experience designing and leading structured multi-agent coding pipelines with specialized roles for code generation, review, and test coverage, and show strong judgment around reliability through schemas, guardrails, reviewer gates, and manual validation.”
Mid-level Software Engineer specializing in Windows graphics performance and cloud automation
“Graphics software engineer with academic robotics/HRI experience at Oregon State University under Dr. Heather Knight, leading a ROS+Python physical robot and Unity/C# VR system to study how motion/texture/collisions are perceived in VR (2 papers + thesis). Also built ROS-based Wizard-of-Oz TurtleBot study systems and multi-robot coordination experiments, plus industry experience with Docker/Kubeflow ML tooling and Azure DevOps CI/CD automation.”
Junior Software Engineer specializing in LLM agents and AWS backend systems
“Built and owned the end-to-end architecture for a Quick Flows “research card” backend at AWS, using an event-driven AWS stack (SNS/SQS, DynamoDB, S3) to support asynchronous research output processing and status tracking. Emphasized maintainability via unit tests, smoke tests, and CI/CD with staged environments (devtest and gamma).”
Senior Full-Stack Software Engineer specializing in modern web and AI applications
“Front-end engineer who significantly owned the Microsoft Teams personal copilot web experience for enterprise customers, including real-time streaming chat powered by WebSockets and bot infrastructure. Stands out for combining browser UI architecture, accessibility/localization work across 30 languages, and strong production telemetry/incident ownership for reliability at scale.”
Junior Software Development Engineer specializing in AWS distributed systems and data orchestration
“Backend/platform engineer with deep AWS experience who built a high-reliability ingestion platform (Lambda + Step Functions + DynamoDB) that became the single source of truth for training/qualification certification data across an AU region, handling high-volume async updates with strong consistency controls. Also led a major API migration from Lambda to ECS/Fargate to eliminate cold starts and increase throughput, and has hands-on EKS/Kubernetes operations plus Kafka partitioning/ordering expertise.”
Mid-level Software Engineer specializing in backend, distributed systems, and ML-integrated platforms
“Built and shipped production AI systems spanning customer support automation at Uber, privacy-preserving federated health modeling on iOS, and an open-source semantic search layer for Postgres. Stands out for combining strong LLM/product instincts with rigorous eval design, measurable production impact, and zero-to-one execution across backend, mobile, and developer infrastructure.”
Mid-level Software Engineer specializing in distributed systems and automation
“Engineer with experience at Flexport and Microsoft, focused on full-stack and backend platform work in complex workflow and permissions-heavy systems. They’ve shipped customer-facing Next.js/GraphQL features, improved PostgreSQL-backed authorization performance, and driven an event-driven SQS architecture change that improved throughput by ~20% and sped up new workflow development by ~30%.”