Nikolai R.
Senior Full-Stack Developer | React/Next.js, TypeScript, Node.js/.NET
Building and scaling modern web applications for EU/US clients with full end-to-end ownership: architecture, development, deployment, optimization. Key responsibilities: - Developing large-scale front-end applications using ReactJS/Next.js, TypeScript, Tailwind CSS - Implementing modular and high-performance UIs using React Query / Zustand / Redux Toolkit - Delivering backend APIs and microservices with Node.js, Express, C#/.NET - Designing micro-frontend architecture (Module Federation / independent deployable features) - Setting up CI/CD pipelines (GitHub Actions / Azure DevOps) - Building cross-platform mobile apps with React Native - Improving app performance, reducing bundle sizes, optimizing rendering – Leading technical decisions, planning architecture, and coordinating with stakeholders
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $380
Billed in all: $35,725$36k
$380 in the last 6 months
Across 5 contracts
Earnings, last 30 days
Skill rankings: Top 18% in LeSS Framework
Ranked by MRR among everyone on Upwork with the skill.
- #24LeSS Framework137 freelancers · 🇺🇦 #9Top 18%🇺🇦#9 of 43
- #51webpack250 freelancers · 🇺🇦 #17Top 20%🇺🇦#17 of 65
- #282Sass1,305 freelancers · 🇺🇦 #54Top 22%🇺🇦#54 of 211
- #623Azure DevOps2,096 freelancers · 🇺🇦 #20Top 30%🇺🇦#20 of 73
- #683Redux3,245 freelancers · 🇺🇦 #130Top 21%🇺🇦#130 of 492
- #2,241C#8,348 freelancers · 🇺🇦 #135Top 27%🇺🇦#135 of 422
- #3,142React Native10,486 freelancers · 🇺🇦 #216Top 30%🇺🇦#216 of 660
- #3,740HTML514,581 freelancers · 🇺🇦 #418Top 26%🇺🇦#418 of 1,271