Mykola Odnosumov

I’m a Senior Full-Stack Engineer with 7+ years of experience building mobile apps, backend systems, and cloud-powered infrastructure. I specialize in React Native, Node.js, and AWS—helping companies move fast, build reliably, and scale without friction.

Across my career, I’ve led full product cycles: establishing development processes, architecting mobile and backend solutions, owning CI/CD pipelines, and mentoring engineering teams. I’m comfortable driving projects independently or integrating smoothly into existing teams.

What I Do

• Mobile Development (React Native)

Building high-quality cross-platform apps, modernizing legacy codebases, and setting up full mobile dev environments from scratch.

• Backend Engineering (Node.js, Express.js, NestJS)

Designing secure APIs, serverless systems, and robust backend architecture.

• Cloud & DevOps (AWS, GCP, Firebase)

CI/CD, infrastructure automation, AppCenter/fastlane pipelines, serverless deployments, and scalable architectures.

• Team Enablement

Mentoring juniors, improving processes, and aligning engineering with product needs.

Highlights from Previous Roles

• Built Yotpo’s mobile dev infrastructure, CI/CD pipelines, and led a new mobile team.

• Delivered a full redesign and modernization of a major tenant-experience mobile app for Silverstein Properties.

• Shipped complex payment flows and refund systems at Wix, plus improved internal tools and UX.

• Created production-ready web systems with Node.js, MongoDB, and AWS at Agilium Labs.

• Hands-on low-level engineering background (C/C++, firmware) — giving me strong debugging and architectural intuition.

Tech Stack

Frontend/Mobile: React Native, React.js

Backend: Node.js, Express.js, NestJS, Nx

Databases: PostgreSQL, MySQL, MongoDB, DynamoDB

Cloud: AWS, GCP, Firebase

CI/CD: AppCenter, fastlane, Jenkins, serverless automation

Languages: TypeScript, JavaScript, Bash, Python, Lua, C/C++ 

Why Clients Hire Me

• I take ownership, communicate clearly, and deliver on time.

• I move fast without breaking quality.

• I can jump into complex systems, clean them up, and make them scalable.

• I’m comfortable driving the whole flow—from idea to production release.

If you need someone who can build, optimize, or rescue your product with confidence and experience — I’m ready to help.