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Dmitrijs Vasilcenko

@dmitrijsvasilcenko

Software Engineer and Technical Co-Founder at Gauja, who independently designed and developed its multi-tenant SaaS platform.

Latvia

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At Gauja, I independently designed and developed the complete technical platform, from its multi-tenant SaaS architecture to deployment. I built the React frontend and Python/FastAPI backend, and designed the PostgreSQL database.

I integrated Slack, Microsoft Teams, and OpenAI APIs, and implemented secure REST APIs with OAuth 2.0 and JWT authentication. Earlier, I developed React web applications at Kleintech Services and built responsive websites as a freelance Front-End Developer.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer & Technical Co-Founder

Current

Gauja

Jan 2025 - Present (1 year 10 months)

Independently designed and developed the complete technical platform, including frontend, backend, infrastructure, and integrations. Built a scalable multi-tenant SaaS architecture with React, Python, FastAPI, and PostgreSQL.

React JavaScript Python fastAPI PostgreSQL Docker Linux REST APIs Slack API Microsoft Graph API OpenAI API OAuth 2 JWT Nginx PM2 Hetzner Cloud

Web Programmer

Kleintech Services

Mar 2022 - Sep 2022 (6 months)

Developed responsive React web applications and built reusable UI components. Integrated REST APIs and collaborated with backend developers on new features and bug fixes.

React JavaScript REST APIs UI Components Collaboration

Front-End Developer

Freelance

May 2020 - Aug 2021 (1 year 3 months)

Built responsive websites using HTML, CSS, and JavaScript. Worked directly with clients to deliver production-ready solutions.

HTML CSS JavaScript Responsive Design

Education

Degrees, certifications, and relevant coursework

Riga Technical University

Bachelor of Engineering, Computer Systems

2020 - 2024

Completed a Bachelor's degree in Computer Systems with a focus on software engineering, web application development, databases, algorithms, and system architecture. Developed multiple software projects using modern web technologies and completed a bachelor's thesis comparing modern frontend frameworks.