Open to opportunities

Francisco Castro

@franciscocastro3

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Senior full-stack engineer crafting scalable web apps and REST APIs across cloud platforms for real-world impact.

Chile

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What I'm looking for

I’m looking for a remote-first team where I can own end-to-end full-stack delivery—designing REST APIs, optimizing performance, and shipping cloud-native features. I’m especially excited by domains like fintech, gaming, and AI decision support.

I’m a Senior Full Stack Software Engineer with 7+ years of experience designing and delivering scalable web applications, RESTful APIs, and cloud-based systems across gaming, fintech, e-government, and AI-driven decision support. I focus on clean, maintainable code and strong ownership—especially in remote-first, distributed, international teams.

Across my roles, I’ve shipped high-traffic products and enterprise solutions end-to-end: building full stack features, integrating third-party APIs, and supporting regulated environments with clear adherence to specifications. I’ve delivered backend services and improved reliability and performance using tools like Docker, Couchbase, and CI/CD pipelines, while partnering closely with engineers, researchers, and clients to translate needs into scalable software.

I’m fluent in PHP (Laravel), JavaScript (React, Vue.js), Python, and Node.js, with hands-on cloud experience in AWS and GCP. I’m excited to take on new technologies, domains, and challenges—always with a bias toward measurable impact, thoughtful system design, and continuous collaboration.

Experience

Work history, roles, and key accomplishments

Software Engineer

Opturion

Jan 2026 - May 2026 (4 months)

Developed and delivered software applications supporting optimisation and AI-driven decision-support systems. Collaborated with engineers, researchers, and clients to design and ship tailored enterprise solutions.

Optimization Enterprise Software Software Delivery

Senior Full Stack Software Engineer

Sciplay (via Amber Studios)

Jan 2022 - Jan 2025 (3 years)

Designed and maintained scalable backend services for high-traffic gaming platforms in collaboration with US-based engineering teams. Built and optimized server-side solutions using PHP, Docker, Couchbase, and JavaScript in a distributed, remote-first environment.

PHP Docker Couchbase JavaScript Backend Services Scalability Performance Optimization

Full Stack Software Engineer

Sondek (CMP Group projects)

Jan 2022 - Jan 2024 (2 years)

Architected and built metallurgical balance management systems using Python, PHP, Vue.js, and Node.js. Integrated Google Drive APIs and AWS cloud infrastructure to streamline data workflows and contributed to system design documentation across client projects.

Python PHP Vue.Js Node Google Drive AWS System Design Technical Documentation

Software Developer

Gisma

Jan 2021 - Jan 2022 (1 year)

Built and deployed full stack web applications using PHP (Laravel), MySQL, JavaScript, React, and Angular. Deployed and managed cloud infrastructure on AWS and GCP and mentored junior developers while leading team onboarding.

PHP Laravel MySQL JavaScript React Angular AWS GCP Mentor Onboarding

Backend Developer

RedCapital

Jan 2020 - Jan 2021 (1 year)

Developed robust backend systems for a fintech lending platform using PHP (Laravel), MySQL, and JavaScript. Identified and resolved performance bottlenecks and supported ongoing maintenance and codebase refactoring.

PHP Laravel MySQL JavaScript Backend Development System Stability Refactoring

Senior System & Software Developer

Inpact

Jan 2019 - Jan 2020 (1 year)

Designed and deployed enterprise-grade .NET C# MVC systems for Banco Estado, Chile’s largest state-owned bank. Implemented CI/CD pipelines using Jenkins and SQL Server and supported requirements gathering and technical specification.

C#MVC Jenkins SQL Server CI CD Pipelines Requirements Gathering Specifications

Full Stack Software Engineer

Valio

Jan 2025 - Present (1 year 6 months)

Designed and delivered custom software solutions for public sector clients using PHP (Laravel), React.js, and SQL Server. Integrated third-party APIs and ensured maintainable code that met strict government requirements.

PHP Laravel React SQL Server Code Quality

Senior / Full Stack Software Engineer

Passline

Jan 2025 - Present (1 year 6 months)

Engineered and shipped new features for a high-traffic ticketing platform using PHP and JavaScript. Built full stack solutions on Linux infrastructure with MySQL and delivered frontend development and third-party API integrations.

PHP JavaScript MySQL Linux Frontend Development Third Party Integrations Deployment server management