Open to opportunities

Alexander Buck

@alexanderbuck

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Senior Golang full-stack engineer delivering scalable, cloud-native microservices and performant systems.

United States

Message

What I'm looking for

I seek senior engineering roles building cloud-native, microservice-based systems where I can lead architecture, mentor teams, and improve reliability and performance.

I am a Senior/Lead Software Engineer with over 10 years of experience designing, building, and operating high-performance distributed systems across healthcare, finance, and SaaS domains.

I specialize in Golang, Python, and C#/.NET, and I build cloud-native microservices using DDD and clean architecture principles, leveraging Docker, Kubernetes, and CI/CD on AWS, Azure, and GCP.

I have led modernization efforts converting monoliths to microservices, achieving significant performance gains and cost reductions, and I implement robust observability, reliability patterns, and secure authentication flows.

I mentor teams, author technical documentation and API specs, and deliver end-to-end solutions that prioritize maintainability, scalability, and operational excellence.

Experience

Work history, roles, and key accomplishments

Current

Senior Golang Full Stack Engineer

Current

Expero

Dec 2021 - Present (4 years 6 months)

Led design and development of cloud-native Go microservices and front-end dashboards, modernizing legacy Java systems to microservices and reducing response times ~45% while cutting infrastructure costs ~35%. Implemented CI/CD, observability, and secure auth flows to improve reliability and operational visibility.

Golang Docker Kubernetes AWS Microservices Kafka PostgreSQL React

Senior Full Stack Engineer

Kinsa Health

Mar 2017 - Nov 2021 (4 years 8 months)

Developed real-time streaming pipelines and Go-based consumers/producers for telemetry and fever-signal detection, improving event throughput 32% and execution time 25% under load; built FHIR-compatible endpoints and ETL to Snowflake/BigQuery.

Golang Kafka Protobuf PostgreSQL Docker gRPC Snowflake AWS

Software Engineer

Abacus Technology

Aug 2014 - Feb 2017 (2 years 6 months)

Built event-driven and gRPC-based services, integrated Kafka for streaming, and developed SOAP/REST APIs and UI enhancements that increased user engagement 22% and retention 17%.