Senior Software Engineer
- Location
- Ukraine
- Rate, USD
- $30 / hour
- Work schedule
- Full Time, Part Time,
- Links
- —
- Language skills
- English
- Available for Hire
- Yes
About me
I am a results-driven Senior Software Engineer with over 10 years of experience in designing and building high-performance, cloud-native, and microservices-based applications across various domains including healthcare, finance, and blockchain. My expertise lies in full-stack development using technologies such as React, Next.js, NestJS, Node.js, and Go. I have a deep understanding of deploying scalable systems on platforms like Azure and AWS. I have a proven ability to architect distributed applications, integrate third-party APIs, implement secure authentication layers, and optimize systems for performance and maintainability. I am also proficient in smart contract integration using Web3/Ethers.js and have experience with decentralized applications (DApps), on-chain data indexing, and blockchain automation. I am passionate about writing clean code, mentoring junior engineers, and adhering to DevOps best practices.
Professional area
Education
- 09/2015 Bachelor of Computer Science @ Lviv Polytechnic National University
Experience
- 07/2021 - 05/2025 Senior Software Engineer / Software Architect @ Quantum Finance
Spearheaded the migration of legacy JavaScript applications to a fully modular TypeScript codebase, enhancing type safety and reducing runtime errors by 35%. Designed and implemented scalable microservices using NestJS, Node.js, and Go, deployed across Azure Kubernetes Service (AKS) and AWS ECS. Integrated Ethereum and Binance Smart Chain smart contracts using Web3.js and Ethers.js, enabling decentralized wallet, staking, and DAO features. Developed and deployed TheGraph subgraphs for indexing on-chain events, enabling real-time data querying for analytics dashboards.
- 08/2017 – 06/2021 Fullstack Developer @ UnitedHealth Group
Developed and maintained full-stack applications using .NET on the backend and React with TypeScript on the frontend to support internal healthcare intelligence tools. Created and optimized RESTful APIs and microservices to enable seamless integration between clinical platforms, data analytics dashboards, and external provider systems.
- 07/2015 to 07/2017 Software Consultant @ Pariveda
Collaborated as part of a client delivery team to implement full-stack solutions using frontend frameworks (React, Angular, or similar) and backend technologies (Node.js, .NET, Java, or Python). Developed modular components and interfaces using HTML/CSS/JavaScript and assisted in building responsive, accessible user interfaces.
Recommend this talent
Related resumes
-
Senior Product Analyst
I am a Senior Product Analyst with extensive experience in product analytics, data engineering, and business intelligence. Over the past several years, I have developed strong expertise in SQL, Python,…
-
Gerente de Costos y Análisis de Proyectos / Arquitecto de Soluciones / Coordinador de Servicios Administrados
I am a professional with over 10 years of experience, combining technology with business strategy. My focus is on implementing technological solutions that merge technical vision with financial management to…
-
PhD Researcher in Artificial Intelligence & Big Data | Quantum Neural Network | Robotics & STEM Coach
I am a PhD researcher specializing in Artificial Intelligence and Big Data, with a particular focus on Quantum Machine Learning and Quantum Neural Networks. My academic research centers on hybrid…
-
Data Engineer & Data Analyst
I am a results-driven Data Engineer with over one year of experience designing and building scalable ETL/ELT pipelines, multi-source data ingestion systems, and cloud-based data workflows. I am proficient in…
-
Final-year Computer Science Graduate
I am a final-year Computer Science graduate, expected to complete my degree in 2026, with hands-on experience building AI-powered systems such as NLP classifiers, RAG pipelines, and deployed machine learning…