Himalayas logo
GL
Open to opportunities

Gabriel Lopez

@gabriellopez

I am a staff software engineer specializing in full‑stack development, DevOps, and scalable payment systems.

United States
Message

What I'm looking for

I'm seeking senior engineering roles building secure, cloud-native payment or healthcare systems, focusing on scalability, compliance (PCI/HIPAA), ML-driven features, infrastructure optimization, and technical leadership where I can mentor engineers and deliver measurable cost and reliability gains.

I build and operate large-scale, compliant backend systems and user-facing applications. I architected Golang-based payment microservices that handle $50M+ in monthly transactions with PCI-DSS compliance and 99.99% uptime, and I developed real-time fraud detection pipelines (Go, Python, Kafka, ML) achieving 97% accuracy and reducing fraud losses by 30%. I also optimized Kubernetes autoscaling and AWS Fargate workloads, cutting infrastructure costs by $200K annually.

I modernized legacy Ruby on Rails + React stacks into Golang microservices and React/Next.js frontends, improving API response times by 40% and accelerating product iteration. I built HIPAA-compliant patient data platforms and integrated AI-assisted diagnostic pipelines that sped clinician decision-making by 35%, and I have a track record of improving reliability and deployment velocity across Azure and AWS environments.

Experience

Work history, roles, and key accomplishments

SA
Current

Software Engineer

Sardine

Oct 2021 - Present (3 years 10 months)

Architected Golang-based payment microservices processing $50M+ monthly transactions, ensuring PCI-DSS compliance and maintaining 99.99% uptime. Built real-time fraud detection pipelines (Go, Python, Kafka, ML) with 97% anomaly accuracy, reducing fraud losses by 30% and cutting infrastructure costs by $200K annually.

KL

Staff Software Engineer

Klara

May 2018 - Sep 2021 (3 years 4 months)

Modernized legacy Ruby on Rails + React stack into Golang microservices and React/Next.js, improving API response times by 40% and enabling faster product iteration. Built a HIPAA-compliant patient data platform handling 100K+ daily patients and integrated AI diagnostic pipelines that accelerated clinician decision-making by 35%.

Microsoft logoMI

Software Engineer

Sep 2015 - Mar 2018 (2 years 6 months)

Developed C# / ASP.NET Core backend services on Azure powering collaboration features for 50M+ Office 365 users and led a monolith-to-microservices migration to AKS, reducing deployment cycles from 3 weeks to <1 day. Implemented automated monitoring and failover strategies that improved reliability to 99.99% uptime and was awarded the Microsoft Gold Star (2017).

Uber logoUB

Software Engineer Intern

Uber

Feb 2014 - Aug 2015 (1 year 6 months)

Contributed to a Java-based dispatch service, optimizing driver–rider matching algorithms and improving efficiency by 15% in pilot markets. Developed a React driver onboarding dashboard that reduced onboarding time by 25% and improved adoption.

Education

Degrees, certifications, and relevant coursework

University of Washington logoUW

University of Washington

Bachelor of Science, Computer Science and Applied Mathematics

Completed a Bachelor of Science focusing on Computer Science and Applied Mathematics at the University of Washington.

Find your dream job

Sign up now and join over 100,000 remote workers who receive personalized job alerts, curated job matches, and more for free!

Sign up
Himalayas profile for an example user named Frankie Sullivan
Gabriel Lopez - Software Engineer - Sardine | Himalayas