Open to opportunities

Serhii Koval

@serhiikoval

Message

Senior Software Engineer with expertise in blockchain and AI technologies.

Ukraine

Message

What I'm looking for

I am looking for a role that fosters innovation and collaboration, where I can leverage my skills in blockchain and AI to create impactful solutions.

I am a Senior Software Engineer with over 8 years of experience in delivering innovative and scalable software solutions. My strong background in blockchain technologies, artificial intelligence, and deep learning has enabled me to successfully lead projects such as smart contract development and decentralized applications (dApps). I specialize in building high-performance applications and have a proven track record of enhancing user engagement through modern tech stacks.

Throughout my career, I have launched several ICOs and built multiple dApps, including gambling applications and social interaction platforms. My expertise in languages such as JavaScript, Python, and Solidity, combined with my proficiency in cloud infrastructure and CI/CD pipelines, allows me to engineer complex algorithms and optimize system performance effectively. I am passionate about leveraging technology to create user-friendly solutions that drive business success.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

TechFirst

Jun 2023 - Mar 2025 (1 year 9 months)

Launched several ICOs, specifically ERC20 tokens on Ethereum, with custom functionality built into token launch contracts. Engineered and tested complex algorithms, functions, and data structures in Solidity to maximize gas efficiency and minimize security risks. Orchestrated Docker & Kubernetes deployments, ensuring 99.9% uptime and reducing deployment cycles by 30% across AWS & Azure.

Solidity Hardhat Chai Docker Kubernetes AWS Azure Python Gin Go Spring Boot TypeScript

Senior Software Engineer

Vacobult

May 2021 - May 2023 (2 years)

Planned and developed web applications using ASP.NET, Node.js and PHP to deliver scalable solutions. Crafted dynamic and responsive interfaces with Angular.js and React.js to enhance user experience. Released 10+ cross-platform apps using React Native, Ionic, Angular, expanding client reach by 25%.

ASP.NET Node PHP Angular React MySQL PostgreSQL Microsoft Azure WordPress React Native Ionic

Backend Developer

Inoxoft

Nov 2019 - Apr 2021 (1 year 5 months)

Engineered and developed backend services using Django and FastAPI for scalable applications. Implemented face recognition systems utilizing deep learning techniques for accurate identification. Deployed serverless functions on AWS Lambda to enhance scalability and reduce costs.

Django fastAPI Angular C++MySQL Deep Learning AI AWS Lambda

Software Engineer

Alltegrio

Nov 2017 - Oct 2019 (1 year 11 months)

Customized WordPress websites with PHP, creating unique themes and plugins tailored to client requirements. Architected scalable e-commerce platforms in ASP.NET and C#, integrating payment gateways and improving client revenue by 25%. Optimized database performance and executed advanced queries using PostgreSQL for high-traffic web applications, ensuring data reliability and scalability.

WordPress PHP ASP.NET C++HTML CSS JavaScript PostgreSQL

Education

Degrees, certifications, and relevant coursework

Nanyang Technological University

Bachelor’s Degree, Computer Science

Completed a comprehensive curriculum focused on the theoretical and practical aspects of computer science. Gained expertise in various programming paradigms, data structures, and algorithms, preparing for a career in software development.