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Valentin E. Queijeiro

Available to hire

I am a Senior Software Engineer and Full Stack Developer with 7+ years of experience designing, developing, and deploying scalable web applications and distributed systems. js, Express, and AWS Lambda.

About

I am a Senior Software Engineer and Full Stack Developer with 7+ years of experience designing, developing, and deploying scalable web applications and distributed systems. I have led the design and implementation of enterprise-grade apps using React, TypeScript, Node.js, Express, and AWS Lambda. I thrive in remote, cross-functional teams and value Agile practices.

I have deep expertise in React, Node.js, and AWS Cloud, and I excel in remote, cross-functional teams following Agile methodologies. I enjoy mentoring junior developers and collaborating with product, QA, and DevOps to deliver robust features. I am fluent in English and Spanish.

  • 6 years' experience
  • Joined November 2025

Languages

  • EnglishFluent
  • Spanish; CastilianFluent

Industry experience

  • Software & Internet
  • Professional Services

More experts in Buenos Aires, Argentina

Work experience

Senior Software Engineer / Full Stack Developer · AccentureFeb 2019 – Nov 2025 · 6 yrs 10 mos

Led the design and implementation of enterprise-grade applications using React, TypeScript, Node.js, Express, and AWS Lambda. Developed and maintained RESTful and GraphQL APIs, integrating legacy systems. Implemented CI/CD pipelines (GitHub Actions, Jenkins, Docker), increasing deployment frequency by 40% and reducing release errors. Collaborated with product, QA, and DevOps to deliver features aligned with business goals and technical standards. Optimized cloud infrastructure using AWS EC2, S3, RDS, CloudFront, and Azure App Service with a focus on scalability and cost efficiency. Conducted code reviews, mentored junior developers, and enforced best practices for clean code and test automation. Participated in Agile ceremonies (Scrum & SAFe), sprint planning, and backlog refinements for distributed global teams.

Education

Bachelor's in Systems Engineering · Universidad de Palermo2019 – 2025

Certifications and awards· 7

AWS Certified Developer – Associate2030 – 2025
Scrum Master Certified (SMC)2030 – 2025
Advanced React Patterns2030 – 2025
Microsoft Certified: Azure Developer Associate (AZ-204)2030 – 2025

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