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I'm Kevin Muller, a Senior Software Engineer with 12+ years delivering full stack development for highly available web products and backend platforms. I love turning complex problems into scalable, reliable systems and leading cross-functional teams to ship impact at scale. I thrive on building and evolving developer-facing APIs, driving DevOps excellence, and mentoring peers to raise the quality and resilience of our software. I specialize in Python, Django, React, Node.js, and TypeScript, and I enjoy guiding architecture decisions, championing observability, and owning the end-to-end lifecycle from design through deployment and operations. I’m happiest when collaborating across product, design, and support to create delightful, robust experiences for users and developers alike.…I'm Kevin Muller, a Senior Software Engineer with 12+ years delivering full stack development for highly available web products and backend platforms. I love turning complex problems into scalable, reliable systems and leading cross-functional teams to ship impact at scale. I thrive on building and evolving developer-facing APIs, driving DevOps excellence, and mentoring peers to raise the quality and resilience of our software. I specialize in Python, Django, React, Node.js, and TypeScript, and I enjoy guiding architecture decisions, championing observability, and owning the end-to-end lifecycle from design through deployment and operations. I’m happiest when collaborating across product, design, and support to create delightful, robust experiences for users and developers alike.

Kevin Muller

Full Stack Developer, Web Developer, Back-End Developer, +2

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I'm Kevin Muller, a Senior Software Engineer with 12+ years delivering full stack development for highly available web products and backend platforms. I love turning complex problems into scalable, reliable systems and leading cross-functional teams to ship impact at scale. I thrive on building and evolving developer-facing APIs, driving DevOps excellence, and mentoring peers to raise the quality and resilience of our software. I specialize in Python, Django, React, Node.js, and TypeScript, and I enjoy guiding architecture decisions, championing observability, and owning the end-to-end lifecycle from design through deployment and operations. I’m happiest when collaborating across product, design, and support to create delightful, robust experiences for users and developers alike.…I'm Kevin Muller, a Senior Software Engineer with 12+ years delivering full stack development for highly available web products and backend platforms. I love turning complex problems into scalable, reliable systems and leading cross-functional teams to ship impact at scale. I thrive on building and evolving developer-facing APIs, driving DevOps excellence, and mentoring peers to raise the quality and resilience of our software. I specialize in Python, Django, React, Node.js, and TypeScript, and I enjoy guiding architecture decisions, championing observability, and owning the end-to-end lifecycle from design through deployment and operations. I’m happiest when collaborating across product, design, and support to create delightful, robust experiences for users and developers alike.

Available to hire

I’m Kevin Muller, a Senior Software Engineer with 12+ years delivering full stack development for highly available web products and backend platforms. I love turning complex problems into scalable, reliable systems and leading cross-functional teams to ship impact at scale. I thrive on building and evolving developer-facing APIs, driving DevOps excellence, and mentoring peers to raise the quality and resilience of our software.

I specialize in Python, Django, React, Node.js, and TypeScript, and I enjoy guiding architecture decisions, championing observability, and owning the end-to-end lifecycle from design through deployment and operations. I’m happiest when collaborating across product, design, and support to create delightful, robust experiences for users and developers alike.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Senior Software Engineer at Airbnb

January 1, 2025 - Present

Led full-stack modernization for a tier-1 backend using Python, Django, PostgreSQL, Redis, and React, delivering scalable solutions that improved p95 latency during peak booking windows through indexing, caching, and query-plan optimization. Architected partner-facing REST and GraphQL APIs with strict versioning and backward compatibility. Designed microservices with Kafka and Celery to support event-driven reservation and payment workflows, improving recovery times. Implemented Kubernetes-based deployments and feature flags with canary and automated rollbacks to improve release safety. Hardened services with OAuth2/JWT, rate limiting, and auth validation; owned on-call for critical paths, improving incident handling. Instrumented tracing with OpenTelemetry, Grafana, and Datadog, cutting median triage time via trace-to-log correlation.

Senior Software Engineer at GitHub

June 1, 2019 - December 1, 2024

Delivered full stack developer-platform services; owned core API surfaces; built webhook ingestion and fan-out service in Node.js/TypeScript with signature verification, retries, and backoff; implemented Kafka-based event pipelines for repository and audit events; established reliability patterns (timeouts, circuit breakers, bulkheads, idempotency, backpressure), lowering incident frequency. Strengthened DevOps with Kubernetes deployment standards and Terraform modules, speeding onboarding and improving parity. Improved CI/CD pipelines using GitHub Actions and Buildkite with caching and test selection. Built and operated AWS-hosted services (EC2/ECS, RDS, S3) for event processing and developer tooling. Created LLM-powered tooling to summarize incidents and surface context from tickets and logs, improving on-call handoffs.

Senior Software Engineer at Urbandoor

June 1, 2016 - July 1, 2018

Owned backend development for marketplace services with Python/Django and Redis, improving booking-workflow reliability and reducing customer-support escalations. Designed REST APIs and data models for pricing and availability with caching and invalidation, improving page responsiveness during peak traffic. Implemented asynchronous processing with Celery to smooth traffic spikes; shipped React-based internal tools for listing and reservation management, cutting manual operational effort. Led schema migrations and data reconciliation jobs, maintained data correctness, and introduced structured logging, dashboards, alert thresholds, and unit testing practices to reduce unknown incidents and improve release confidence.

Software Development Engineer I at Microsoft

March 1, 2014 - June 1, 2016

Developed and maintained backend components in C#/.NET and SQL Server/Azure patterns; built REST APIs and background processing for enterprise workflows; implemented instrumentation and alerting for key user journeys, shortening triage time from hours to under an hour; collaborated on secure-by-default patterns; improved build and release automation (CI pipelines, gated checks), reducing broken builds and smoothing delivery cycles.

Software Development Engineer I at Microsoft

October 1, 2012 - March 1, 2014

Shipped backend features using C#/.NET and SQL; optimized query paths and indexing for high-usage endpoints; partnered with QA/PM on release readiness; implemented early monitoring and logging to improve diagnosability and reduce post-release hotfixes.

Software Engineer at Yammer, Inc.

January 1, 2012 - October 1, 2012

Contributed to backend reliability and API correctness; implemented performance fixes and caching strategies to reduce intermittent slowdowns; supported production operations via on-call participation and post-incident follow-ups, improving stability across sprints.