# Vladyslav Nesterenko

> Senior full-stack web developer in Innsbruck, Austria. Six years building and running web products end to end – TypeScript, React, Next.js, Node.js, Ruby on Rails, PostgreSQL, AWS with Terraform, and Cloudflare Workers – for clients in finance, e-commerce, media, and staffing. Available for freelance projects and for long-term or full-time engagements, remotely or on site in Tyrol.

- Name: Vladyslav Nesterenko
- Role: Senior Full-Stack Developer (freelance, and senior full-stack developer at ChallengeSoft)
- Location: Innsbruck, Tyrol, Austria (Central European Time); authorised to work in Austria; works remotely by default
- Professional experience: web development since 2020; senior full-stack developer since 2024; independent freelance work since 2024
- Education: MSc and BEng in Computer Software Engineering, Cherkasy State Technological University (MSc completed January 2026)
- Languages: English (C2, EF SET certified), Ukrainian (native), Russian (native), German (B1)
- Longest single engagement: two years (2023–2025), lead developer on a staffing provider's time-tracking and accounting platform
- Contact: vladyslav.v.nesterenko@gmail.com, https://vladnesterenko.com/contact

Core skills: TypeScript, React, Vue, Next.js, Node.js, Ruby on Rails, Python · Django, PostgreSQL, MongoDB, AWS, Terraform, Docker, TDD · XP.

## Services

- [Build the product end to end](https://vladnesterenko.com/services#build): You know what the business needs. You don't have the engineering to build it. A creator–brand marketplace: primary author on a five-person team – 74 API routes, 19 data models, 5 scheduled jobs, built over 12 months.
- [Unify systems that don't talk to each other](https://vladnesterenko.com/services#integrate): Your numbers live in four tools and someone reconciles them by hand every week. A multi-brand e-commerce operator: QuickBooks, Shopify, Meta Ads, and Google Ads/GA4 unified into a single dashboard – 32 API routes, built in three months.
- [Interfaces for dense, high-stakes data](https://vladnesterenko.com/services#interfaces): Your users work in screens where a mistake costs real money. A securities-lending trading desk: built the deal-book table, the returns and recall flows, and led the migration from JWT to session-cookie auth – 52,000 of 260,000 lines added to the codebase.
- [Take over a system nobody wants to run](https://vladnesterenko.com/services#takeover): It works, sort of. The person who built it left. Deploys are frightening. A staffing provider's time-tracking and accounting platform: two years of maintenance and development, 41 Terraform resources covering VPC, ECS, RDS, load balancing, autoscaling, and CloudWatch alarms.
- [How engagements work](https://vladnesterenko.com/services): The discovery phase is fixed-fee and the output is yours to keep – the architecture document and the estimate – whether or not you hire me to build it.

## Case studies

- [Creator-Audience Acquisition Platform](https://vladnesterenko.com/work/creator-audience-platform): A marketplace where brands lease access to creators' social audiences – Stripe billing, Meta account connection, and a sync engine keeping audience data current. Role: Lead Engineer; 5 engineers – Primary author; 2025–26 · 12 months.
- [Subcontractor Time-Tracking & Accounting Platform](https://vladnesterenko.com/work/workforce-time-accounting): Two years running the system a staffing provider bills from – time entries, leave accrual, payroll and client invoicing, on infrastructure I moved into Terraform. Role: Lead Developer; 4 developers – Primary author; 2023–25 · 2 years.
- [Business-Metrics Data Dashboard](https://vladnesterenko.com/work/business-metrics-dashboard): Four disconnected money systems pulled into one dashboard for a multi-brand e-commerce operator – and then deliberately cut back until it was readable. Role: Solo; Solo; 2026 · 3 months.
- [Patchwork Oddments – BYOK AI-Tools Directory](https://vladnesterenko.com/work/patchwork-oddments): My own product, live and public – a directory of AI tools you run with your own API key. The one project here you can click on and use. Role: Solo – design, build, deploy; Solo; 2026 · ongoing.
- [Securities-Lending Trading Interface](https://vladnesterenko.com/work/securities-lending-ui): Turning a v0 prototype into a trading desk traders could actually work in – deal book, returns and recalls, and a multi-window layout. Role: Frontend Engineer; 4 engineers; 2025–26 · 3 months.

## About

- [About Vladyslav Nesterenko](https://vladnesterenko.com/about): I've been building web software professionally since 2020 – first as a web developer at ChallengeSoft, now senior there, owning client projects from requirements analysis through architecture to delivery, solo or leading a small team. Since 2024 I've also taken on independent freelance work alongside that role. I earned a BEng and then an MSc in Software Engineering at Cherkasy State Technological University while working, finishing the master's in early 2026 with a focus on software architecture and machine learning. Ukrainian, based in Innsbruck and authorised to work in Austria – I work in English (C2) and Ukrainian, with German at B1 and improving.
- [CV (English, PDF)](https://vladnesterenko.com/cv/CV_Vladyslav_Nesterenko_EN.pdf)
- [Lebenslauf (Deutsch, PDF)](https://vladnesterenko.com/cv/Lebenslauf_Vladyslav_Nesterenko_DE.pdf)
- [Резюме (Українська, PDF)](https://vladnesterenko.com/cv/CV_Vladyslav_Nesterenko_UA.pdf)
- [Contact](https://vladnesterenko.com/contact): Tell me about your project, system, or role.

## Optional

- [Full text of this site for LLMs](https://vladnesterenko.com/llms-full.txt): every service description, FAQ answer, and case study in plain Markdown
- [Deutsch](https://vladnesterenko.com/de): German version of the site
- [Українська](https://vladnesterenko.com/uk): Ukrainian version of the site
- [LinkedIn](https://linkedin.com/in/vladyslav-nesterenko)
- [GitHub](https://github.com/vladyslavnes)