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Alina T.

Alina T.

Full-Stack Engineer | Claude Code | Angular | React | Java

Overview 11,000 hours of front-end development. Angular from early versions all the way to v20. React, Next.js, Java, Spring Boot, Hibernate. That's the foundation. What's changed: I now use Claude Code daily to move significantly faster without dropping quality. Vibe coding gets a bad rap when developers use it as a shortcut. I use it as a force multiplier β€” the architecture decisions, performance thinking, and production discipline are still mine. The speed is just... different now. What that means for your project: Features that used to take a week get done in days. Complex upgrades that used to take months get done properly and fast. You get a decade-level specialist who ships like a team. ⚑ What I've built Real Enterprise Scale - the most recent project (Angular + Java) 190-component multi-tenant Angular SaaS β€” 994 TypeScript files, ~33,000 lines of production code, 267 SCSS files, 186 HTML templates Architected and maintained 79 NgRx files β€” feature-level state provisioning, polling effects, and a custom Rison-encoded router serializer handling complex URL state 275 domain model files (92 enums, 54 interfaces, 129 classes) β€” full type-safety investment across a steep, high-stakes domain Solved 4GB build heap challenges β€” strict template checking across 186 templates, bundle size optimization, change detection tuning under real production load Bearer token auth with HTTP interceptor, SSO/federated login across multi-tenant routing Datadog RUM production monitoring β€” real-time performance visibility in a live enterprise environment 33 Cypress e2e tests covering approval workflows and collaboration features, 95 Karma/Jasmine unit tests 25 dedicated API service classes integrating with a versioned Java backend (331 REST endpoints across 5 API versions) 32 adapters bridging backend DTOs to frontend domain models β€” clean separation between API contract and UI state React & Next.js β€” Selected Projects Built a full-stack local marketplace platform β€” Next.js App Router, React Server Components, Server Actions, TypeScript β€” with seller dashboard, pickup/delivery logistics, and shopper-facing storefront Implemented role-based auth with Auth.js β€” email/password and OAuth flows across 3 roles (admin, seller, shopper) State management with Redux Toolkit for cart and session, React Query for server data β€” clean separation between client and server state Integrated Algolia/Meilisearch for fast product search, Stripe for payments, PostgreSQL via Java backend REST/GraphQL APIs PWA-ready with SEO optimization β€” performance and discoverability built in from the start DevOps setup with Bitbucket, ESLint/Prettier, Playwright end-to-end testing Backend β€” Java & Spring Boot Built REST APIs with Spring Boot handling document upload and processing β€” integrated Apache Tika for file parsing and iTextPDF for generation, managed async processing to avoid request timeouts Worked on Hibernate entity optimization in a complex domain model β€” identified N+1 query issues, applied fetch strategy fixes and DTO projections, improved response times noticeably Participated in a monolith-to-microservices migration β€” helped set up Spring Boot services, MySQL and Elasticsearch integration, supported dual-write pattern during transition Implemented Spring Security with JWT authentication β€” role-based access control, integrated with existing multi-tenant user management πŸ† How I work Product-minded development β€” I think about what you're building, not just the ticket. Strong communicator, independent problem-solver, deadline-focused. My clients consistently mention this in reviews. I write clean, well-documented, maintainable code that your next developer won't curse you for. πŸ“ž Let's talk about your project. I'll tell you honestly if I'm the right fit. #Angular #React #Next.js #TypeScript #JavaScript #NgRx #Redux #Java #Spring Boot #Spring Security #Node.js #Hibernate #NestJS #Python #MySQL #AWS #PostgreSQL #CI/CD #Elasticsearch #DynamoDB #Docker #REST API #Microservices #Cypress #Playwright #Jest #Claude Code #GitHub #OpenAI Codex Copilot #AI-augmented development #Performance Optimization #Multi-tenant Architecture #Enterprise Applications #SaaS Development

πŸ‡ΊπŸ‡¦Dnipro, Ukraine$25/hr95% JSS5.00 (4)Since Oct 2020
MRR
$3,674
🌍#9,256/363K
πŸ‡ΊπŸ‡¦#665/12.9K
Recent Earnings
$22,047
🌍#9,256/363K
πŸ‡ΊπŸ‡¦#665/12.9K
Total Earnings
$219K
🌍#12.3K/363K
πŸ‡ΊπŸ‡¦#1,007/12.9K
Avg. Per Project
$43,703
🌍#1,184/363K
πŸ‡ΊπŸ‡¦#123/12.9K
Recent Projects
2
1f1h
🌍#240K/363K
πŸ‡ΊπŸ‡¦#9,458/12.9K
Total Projects
5
1f6h
🌍#240K/363K
πŸ‡ΊπŸ‡¦#9,458/12.9K
MRR Performance Over Time
$50k$25k$0
6 mo ago3 mo agoNow
Coming SoonGathering historical data
World Skill Rankings
of 411
#30
Amazon DynamoDBTop 7%
#42Cypress
#44Hibernate
#61Elasticsearch
#65Performance Optimization
#94Spring Boot
#129Redux
#310Angular
#329Java
#360Docker
#430MySQL
#674Next.js
#749TypeScript
#1,103Node.js
#1,393React
πŸ‡ΊπŸ‡¦Ukraine Skill Rankings
of 21
#4
Amazon DynamoDBTop 14%
#5Cypress
#9Elasticsearch
#10Hibernate
#14Performance Optimization
#15Spring Boot
#40Java
#41Angular
#45Redux
#45Docker
#70Next.js
#74MySQL
#101TypeScript
#137Node.js
#179React
Alina T. β€” Top 5% in Ukraine | UpworkMRR