I am a full-stack JavaScript/TypeScript developer with over six years of experience. I have a passion for building scalable applications and optimizing systems to enhance user experiences. I enjoy collaborating with teams to bring innovative ideas to life and thrive on the challenges of modern technology.

Jacob Saveliev

I am a full-stack JavaScript/TypeScript developer with over six years of experience. I have a passion for building scalable applications and optimizing systems to enhance user experiences. I enjoy collaborating with teams to bring innovative ideas to life and thrive on the challenges of modern technology.

Available to hire

I am a full-stack JavaScript/TypeScript developer with over six years of experience. I have a passion for building scalable applications and optimizing systems to enhance user experiences. I enjoy collaborating with teams to bring innovative ideas to life and thrive on the challenges of modern technology.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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Language

Ukrainian
Fluent
Russian
Fluent
English
Fluent
German
Advanced

Work Experience

Full Stack Developer at CodeEmpire
June 1, 2019 - December 31, 2021
Health care, communication & social media mobile applications. Full Stack development. MVP.
Frontend Developer at a2web
January 1, 2018 - June 1, 2018
Frontend development for logistics tracking systems.
Full Stack Developer at A4L GmbH
January 1, 2021 - May 1, 2024
Developed web and mobile applications using ReactJS, React Native, Node.js and NestJS; migrated legacy systems to monolith/microservices architectures; implemented CI/CD pipelines, Dockerized services, and serverless components on Firebase/Azure; built Windows Electron client and background processes; designed centralized logistics data aggregator; refactored legacy infrastructure.
Full-Stack Developer at A4L GmbH
January 1, 2025 - Present
Redesigning legacy infrastructure and migrating to a modern tech stack. Implementing a centralized logistics data aggregator and designing backend services with Dockerized environments.
Full-Stack Developer at Valant
January 1, 2021 - May 1, 2024
Developing a secure content and data repository with multi-user chat and building React Native mobile apps and React web apps. Implementing CI/CD pipelines.
React Native Full-Stack Developer at Codempire
June 1, 2019 - December 1, 2021
Built healthcare, communication, and social media mobile apps. Developed React Native clients and NestJS backends.
Frontend Developer at Ua2web
June 1, 2018 - June 1, 2019
Developed marketplace frontend features using React and Redux.
Frontend Developer at Lardi Trans
January 1, 2018 - June 1, 2018
Built logistics tracking system interfaces with React.

Education

Master's Degree at Kharkiv State University of Food Technology and Trade
January 1, 2002 - December 31, 2008
Certificate at Hillel IT School
January 1, 2018 - June 1, 2018
Master's Degree in Economics at Kharkiv State University of Food Technology and Trade
January 1, 2002 - January 1, 2008
Master’s Degree in Enterprise Economics at Kharkiv State University of Food Technology and Trade
January 1, 2002 - January 1, 2008
Web Development Training at Hillel IT School
January 11, 2030 - April 20, 2026

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Media & Entertainment, Healthcare, Education, Professional Services

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
See more