Ivan

IVAN YEREMENKO
Full Stack Engineer
​ [open contact info](look above in the "contact info" section) ​ [open contact info](look above in the "contact info" section) ​ LinkedIn ​ GitHub ​ Zaporizhzhia, Ukraine
​ https://definitely.dev

ABOUT ME EDUCATION
Seasoned IT Specialist with 6+ years in scalable web applications and cloud- Software Engineering - Master’s degree
native systems. Skilled in software engineering, leading development teams, and (with distinction)
delivering high-quality solutions across startups and enterprises.
Zaporizhzhia Institute of Economics and
Information Technologies (ZIEIT)
SKILLS
2021 - 2023

ASP.NET Core, React\Next, PostgreSQL, SQL Server, Azure, Kubernetes, Software Engineering - Bachelor’s degree
Redis, RabbitMQ
Zaporizhzhia Institute of Economics and
Information Technologies (ZIEIT)
EXPERIENCE 2018 - 2021

Tech Lead \ Senior Full Stack Developer
OP Solutions PROJECTS
01/2026 - Present USA OPSolutions - Compass EHR
https://opsolutions.us 08/2022 - Present USA
A healthcare technology company providing O&P clinics with specialized software https://opsolutions.us
to improve patient care, streamline clinical workflows, and enhance operational
An electronic medical record (EHR) system that stores
efficiency. patients’ clinical and administrative data, tracks
• Leading technical and architectural decisions, balancing business needs, medical history over time, and provides easy access
quality, and development speed. for clinicians. Automates workflows including case
• Collaborating with clients on requirements and technical design. management, documentation, and insurance
• Managing and mentoring development teams. processing, improving efficiency and care quality.
• Developing the main EHR web application using .NET, React, SQL Server, Redis, • Collaboration with architects and making key
Azure, AKS, and OpenSearch. technical decisions that have a direct impact on the
balance between business requirements, quality
Team Lead \ Senior Full Stack Developer
attributes, and development speed.
Tentonteam • Ensuring development processes and composition
03/2024 - 12/2025 Ukraine of the development team, paying attention to the
https://tentonteam.com/ client's budget and time capabilities, and
management of development teams and testers.
Outsourcing IT development company • Participation in the development of the most
• Managing development and launch of core business functions across multiple complex sections of the project.
projects. • Standards and compliances: HL7, HIPAA, SOC2.
• Leading a team of 6 developers, mentoring and organizing development • Stack: .NET, React, SQL Server, Redis, Azure, AKS,
processes. OpenSearch, RabbitMQ.
• Collaborating with clients on requirements and technical design.
• Design and implement scalable, secure web applications using .NET, React, 24SevenOffice - Tax Return
SQL Server, Redis, Azure, and AKS. 10/2023 - 05/2024 Norway
• Optimize backend processes to reduce infrastructure load and cloud costs.
https://24sevenoffice.com
• Plan and consult on testing, including automated tests with xUnit, Playwright,
and Postman. The application is a module of the 24SevenOffice ERP
system, a web-based application designed for
Senior Full Stack Developer accountants to optimize tax reporting by automating
workflows, reducing manual errors, and enhancing
Tentonteam overall tax filing efficiency. It integrates with popular
02/2022 - 03/2024 Ukraine accounting and tax systems, provides real-time client
https://tentonteam.com/ interaction, offers powerful document management
Outsourcing IT development company tools, and has numerous integrations with major tax
software and services.
• Developing web applications using .NET, React, SQL Server, Redis, Azure, and
AKS. • Management of the development team.
• Mentoring and onboarding junior/mid-level developers. • Participation in the development of the most
• Implementing business modules that directly impact product value. complex sections of the project.
• Collaborating on technical design, task planning, and evaluation with cross- • Implementation of a software engine for composing
functional teams. tax reports, as well as core tools for collecting tax
• Optimizing database performance and ensure application speed, security, and data based on documents provided by the user.
stability. • Standards: SOC2.
• Conducting testing with xUnit, Storybook, Playwright, and Postman. • Stack: .NET, React, PostgreSQL, AWS Cloud, AWS
S3.

LANGUAGES
Ukrainian

English (B2)
Russian
EXPERIENCE
Middle Full Stack Developer
Tentonteam
01/2021 - 02/2022 Ukraine
https://tentonteam.com/
Outsourcing IT development company
• Developing web applications using .NET, React, SQL Server, and Redis.
• Breaking down complex tasks for delegation and parallel development.
• Participating in project planning meetings.
• Testing applications with xUnit, Storybook, Playwright, and Postman.

Junior Full Stack Developer
Tentonteam
10/2019 - 12/2020 Ukraine
https://tentonteam.com/
Outsourcing IT development company
• Developing web applications using .NET, React, and SQL Server.
• Contributing to technical decisions and collaborate with a five-person
development team.
• Participating in client meetings to align project development.
• Testing applications manually and with xUnit and Storybook.