Sergio J.

About Me

Sergio is a Senior Software Engineer with 10+ years of experience building front-end and back-end components, converting existing monolith into reusable components and bridging the gap between design and technical implementation, defining how solutions look and work. He is skilled in front-end and back-end development with JavaScript, React.js, Node.js, TypeScript, Next.js, React Native, and AWS, striving to develop and deliver user-friendly, performant interfaces through consistent, high-quality code. Sergio is also a passionate game designer and developer using Unity 3D, C#, and Arduino.

Frontend

Backend

Other

Work history

UpStack
UpStack
Senior Software Engineer
2021 - Present (4 years)
Remote
  • Creating and developing innovative software solutions for clients across a broad range of industries.

  • Participating in scrums consisting of cross-functional teams, both software and hardware.

  • Ensuring that features are being delivered efficiently and on time.

Amazon
Amazon
Software Development Engineer II
2020 - Present (5 years)
Madrid, Spain
  • Developing responsive modules and features on internal projects and implementing new tools and processes on solutions.

  • Writing and maintaining front-end code, implementing web solutions using UI designs and project specs.

  • Designing, developing, and implementing new features and fixing bugs on solutions as they arise.

Udacity
Udacity
Independent Consultant
2019 - 2021 (2 years)
Remote
  • Mentored and supported students on Deep Learning techniques and best practices.

  • Reviewed students' work to help them identify and fix bugs in their codebase.

  • Walked through projects with students, guiding them to successful submissions within Udacity.

PythonPytorchDeep LearningTraining Mentorship & Coaching
Mojix
Mojix
Software Developer
2019 - 2020 (1 year)
Remote
  • Owned, designed, and implemented new software solutions, features, and requirements.

  • Analyzed user needs and developed software solutions applying the latest development techniques and best practices.

  • Resolved complex issues on projects, enhancing and maintaining solutions on a continuous release cycle for clients.

VReality Bolivia
VReality Bolivia
Game Designer | Game Programmer
2018 - 2019 (1 year)
La Paz, Bolivia
  • Pitched new game ideas and created storyboards, game prototypes, and vertical slices.

  • Refactored old code on a videogame and updated its Unity version to meet game objectives and quality standards.

  • Designed and implemented solutions to create an immersive game experience.

Mojix
Mojix
Software Engineer
2014 - 2016 (2 years)
Remote
  • Developed and maintained several software applications and solutions for clients.

  • Designed and wrote software code to implement new features and performance improvements on solutions.

  • Contributed to code quality, development workflow, and best practices on solutions.

Showcase

Software Developer - Væk
Software Developer - Væk
  • Developed a video game using Unity (C#) and Arduino (C++) with a plush toy as a controller.

  • The game utilizes a physical controller consisting of a plush toy.

  • The project was part of a master's degree assessment.

Software Developer - Xtime-Inspect
Software Developer - Xtime-Inspect
  • Xtime Inspect Mobile is a mobile app for technicians to perform multipoint inspections.

  • It was developed using React Native and Node.js for back-end services.

  • The tool focuses on delivering new features through continuous development and updates.

Owner - GitHub Portfolio
Owner - GitHub Portfolio
  • Developed and implemented a portfolio using HTML, CSS, JavaScript, and Three.js.

  • Created a portfolio to showcase games and projects.

  • The portfolio is designed to highlight individual contributions and projects.

Education

Master's Degree, Games Technology
Master's Degree, Games Technology
IT-Universitetet i København - Denmark
2016 - 2018 (2 years)
Bachelor's Degree, Mechatronics
Bachelor's Degree, Mechatronics
Universidad Católica Boliviana - La Paz, Bolivia
2011 - 2014 (3 years)