dtymos

Senior Software Engineer

Hello! I’m Dmytro, a Senior Full-Stack Software Engineer with over 10 years of experience in building and optimizing complex web and mobile applications. I specialize in JavaScript, TypeScript, React.js, React Native, and Node.js. I have extensive hands-on experience with cloud services (AWS, GCP, Azure), microservices, and API integrations (REST, GraphQL).

I have a proven track record in developing scalable micro-frontends with Module Federation, implementing backend-for-frontend (BFF) architecture, and optimizing system performance. My projects include e-commerce platforms, financial tech solutions, and mobile applications for language learning and driving test preparation.

I’m proficient in modern CI/CD tools, containerization (Docker, Kubernetes), and testing frameworks (Jest, JUnit). I’m passionate about solving complex problems and continuously improving system reliability and scalability.

Let’s build something innovative together!

Experience: 7 years

Yearly salary: $100,000

Hourly rate: $0

Nationality: 🇺🇦 Ukraine

Residency: 🇺🇦 Ukraine

Experience

Senior Software Engineer

SoftServe

2020 - 2022

Developed a client data processing microservice from scratch, focusing on optimizing data handling processes, achieved a 50% improvement in request processing time. Identified and resolved critical security vulnerabilities, including SQL injection and improper authentication flows, which enhanced system security and compliance with OWASP standards. Integrated AWS services, such as S3 for scalable storage and Lambda for serverless execution, improving system scalability and reducing infrastructure costs by 20%. Technologies: React.Js, Node.Js, Nest.Js, React‑Native, Redis, SQL, Rest, Junit, Git, CI/CD, Github, Scrum, Agile.

Senior Software Engineer

IdeaSoft

2018 - 2020

Worked on 7 projects, developing 5 from scratch, which accelerated delivery times by 40% through optimized project architecture. Led and mentored a team of 5 developers, doubling the team’s overall productivity through effective collaboration and knowledge sharing. Successfully implemented automated test coverage for microservices, increasing test coverage by 80% and reducing CI/CD pipeline failures by 30%, thereby improving system reliability. Successfully implemented CI/CD pipelines on three projects with automated testing and coverage reports, reducing deployment time by 50% and improving code quality. Technologies: React.Js, Node.Js, RESTApi, React‑Native, Maven, jUnit, Mockito, CI/CD.

Full Stack React/Java Engineer

ArtJoker

2016 - 2018

Proposed and led a complete front end rewrite using React, which improved code maintainability and scalability by 30%. Optimized backend processes, reducing request processing time by 150ms and enhancing overall server performance. Enhanced the ORM system, leading to twice as fast database query performance, improving system responsiveness. Technologies: React.Js, Node.Js, RESTApi, Maven, jUnit, Mockito, CI/CD.

Full Stack React/Java Engineer

NIX Solutions

2013 - 2016

Rewrote key functionality from SSR to SPA, improving user experience and reducing server load by 30%. Implemented a load balancer that resolves the 500 error in 700 users and scales the system to reliably handle 5000 users. Maintaining high code quality through rigorous code reviews and testing, reducing errors by 40% and improving maintainability. Technologies: Java, Spring, Hibernate, Node.Js, React.Js, SQL, Rest.

Skills

full-stack

english

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