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Ulises Capistran

@ulisescapistran

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Senior Node.js backend engineer delivering scalable, secure systems.

Mexico

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What I'm looking for

I seek a senior backend role where I can design scalable APIs, improve CI/CD and testing, mentor engineers, and work in an Agile, security-focused, cloud-native environment.

I am a Senior Node.js Backend Engineer with extensive experience building scalable, secure backend systems using Node.js, TypeScript, and modern cloud and CI/CD tooling. I have designed and implemented high-performance RESTful and GraphQL APIs, led migrations to GitHub Actions, built end-to-end test automation with Cucumber and Selenium, and reduced dependency bloat and runtime errors through disciplined linting and dependency audits.

I have led teams and mentored engineers across remote and on-site engagements, architected AWS-based cloud solutions (Cognito, API Gateway, EventBridge, S3, EC2, Pinpoint, Polly), and consistently improved delivery through Agile practices. I focus on code quality, testability, security, and pragmatic DevOps to accelerate delivery while reducing risk.

Experience

Work history, roles, and key accomplishments

Senior Node.js Engineer

Optum Technologies

May 2022 - Jun 2025 (3 years 1 month)

Designed, developed, and supported scalable Node.js/TypeScript backend systems and RESTful APIs integrated with Oracle, improving reliability and reducing dependency risk through automated testing and dependency auditing.

Node TypeScript REST APIs Jest Cucumber Selenium Webdriver Oracle Docker GitHub Actions

Team Leader

Blue Trail Software

Oct 2018 - Mar 2022 (3 years 5 months)

Led a team of 6 engineers to design and deliver scalable Node.js/TypeScript backend services and GraphQL/REST APIs, and architected AWS cloud solutions to enable secure, event-driven deployments.

Node TypeScript AWS REST GraphQL Cognito EventBridge Jira CI CD

Net Software Developer

Master Loyalty Group

Oct 2015 - Sep 2018 (2 years 11 months)

Developed and maintained loyalty-program management applications, integrating third-party services and implementing C# Windows services and SQL Server solutions to support fulfillment and reporting.

C++SQL Server Pl SQL VB6 Windows Services Integration TFS Requirements Gathering

Net Team Leader

RCI Latin America

Dec 2011 - Jul 2015 (3 years 7 months)

Implemented and managed reservation and exchange systems connecting hotel groups to streamline bookings and operations, improving reservation workflows across multiple resort partners.

C++SQL Server Integration TFS

Net Team Leader

Temple

May 2011 - Dec 2011 (7 months)

Developed a mnemonic decoding system and multithreaded analytics in C# to process oilfield tool data, and performed database design and reverse engineering to improve data analysis throughput.

C++.NET Framework SQL Server Multithreading Windows Server Reverse Engineering

Net Software Developer

Elektra Group

Jan 2008 - Jan 2011 (3 years)

Delivered product information and promotion distribution systems for Elektra stores, building SQL Server artifacts and maintaining legacy Visual Basic systems to support retail operations.

C++Visual Basic SQL Server Stored Procedures .NET Framework

Education

Degrees, certifications, and relevant coursework

Zacatepec Technological Institute

Bachelor of Engineering, Computer Engineering

2004 - 2009

Completed a Bachelor of Engineering in Computer Systems Engineering focused on computer engineering concepts and software development from February 2004 to June 2009.