# Serge Vinterman

Serge Vinterman is a remote worker on Himalayas, Product Engineer at Limitless, based in Bulgaria.

Source: https://himalayas.app/@sergevinterman

```text
Product Engineer at Limitless building prediction-market features end to end and iterating test automation for production releases.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Bulgaria |
| Authorized to work in | Bulgaria |
| Salary expectations | 51k+ USD |
| Job categories | Product Engineer, QA Engineer, Automation Testing |
| Skills | Product Engineering, Quality Assurance, Testing Automation, AI Agents, LLM Evaluation, RAG, Prediction Markets, Blockchain, DeFi, Security Testing, Performance Testing, API Testing, End To End Testing, TypeScript, NodeJS |
| Website | https://vinterman.dev |
| LinkedIn | https://linkedin.com/in/serge-vinterman |

## About

```text
At Limitless, I ship prediction-market features end to end, from idea and design through code, tests, release, and support. I also fix bugs across the frontend and backend and iterate test automation for production releases.

At Skipr, I built QA from zero, including processes, documentation, dashboards, automation, and team hiring. I tested security for government and enterprise clients and also wrote product features and fixed bugs.

At Turbo Stars and Web33, I organised QA for a microservices platform and built test automation for client projects. I’ve also tested DeFi projects, operated validator and full nodes, and built servers, autotests, wallet checkers, and trading bots.
```

## Experience

### Product Engineer (current)

Limitless. Jan 2025 - Present

```text
Ships features end to end, fixes bugs across frontend and backend, and works daily with AI tools. Also handles manual and automated testing for a custom trading core.
```

Skills: AI, Testing, Frontend, Backend, CLOB, AMM, RFQ, Parlay, Testing-Automation

### QA & AQA Lead

Skipr. Jan 2024 - Jan 2025

```text
Built QA from zero including process, docs, dashboards, automation, and team hiring. Implemented E2E automation for web, mobile, API, and load testing, and handled security testing for government and enterprise clients.
```

Skills: Playwright, Appium, TypeScript, Axios, Artillery, GitHub-Actions, LambdaTest, NodeJS, Flutter, VPN, SAST

### Senior QA & AQA Engineer

Turbo Stars. Jan 2022 - Jan 2024

```text
Organized QA on a microservices platform with dense math logic. Built UI and API test frameworks, performed load testing, and created Jira productivity dashboards. Onboarded and mentored two QA engineers.
```

Skills: Playwright, TypeScript, Axios, Chai, GitLab-CI-CD, Postman, Swagger, Jira

### AQA Engineer

Web33. Jan 2020 - Jan 2022

```text
Built test automation from scratch for 15+ client projects, including web and mobile suites for DeFi apps. Implemented load and stress testing, and set up a self-hosted test pipeline with Kubernetes.
```

Skills: Selenium, Appium, Gatling, Artillery, Jenkins, Docker, Helm, ArgoCD, Kubernetes, Prometheus, Grafana

### Builder, Node Operator, Tester

Crypto Projects. Jan 2019 - Jan 2021

```text
Performed testnet bug hunting and reports for early-stage projects, ran validator and full nodes, and built and ran own servers. Wrote autotests and trading bots for various exchanges.
```

Skills: Testnets, Network-Operations, Testing-Automation, Trading-Bots, SPOT, Futures, Copy-Trading

## Education

### Google

Associate Cloud Engineer, Cloud Engineering

```text
Associate Cloud Engineer certification from Google.
```

### Udemy

Professional Certificate, Computer Science

```text
Completed courses in operating systems, Redis, database and backend engineering, WebSockets, and Next.js & React.
```

### Stepik

Certificate, Programming

```text
Completed a Python course on Stepik.
```

### Sololearn

Certificate, Programming

```text
Completed Python and SQL courses on Sololearn.
```

## Tech stack

- Postman
- Blockchain
- Selenium
- WebdriverIO
- BrowserStack
- LambdaTest
- Kubernetes
- Helm
- Akamai
- Jenkins
- GitHub Actions
- GitLab CI
- MySQL
- PostgreSQL
- MongoDB
- Node.js
- Next.js
- Figma
- Redis
- Terraform
- Jira
- Cypress
- React
- Python
- Gatling
- Kafka
- RabbitMQ
- Appium
- Wireshark
- Linux
- iOS
- macOS
- Windows
- Gemini
- GraphQL
- TypeScript
- Docker
- TestRail
- Xray
- Playwright
- Foundry
- Argo CD
- k6
- LangGraph
- Tenderly
- DeepSeek
- Grok
- Qwen
- Android
- AWS
- Claude

To contact Serge, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

## People also viewed

- [Stefan Karagiozov](https://himalayas.app/@stefankaragiozov): Quality Assurance Automation Engineer, Shkolo/Juniper Education
- [Yahor Melnik](https://himalayas.app/@yahormelnik): PO & QA, Price of Time Mobile App
- [Dmitry Panasyuk](https://himalayas.app/@dmitrypanasyuk): Middle QA, 4GOO Holding
- [PLAMEN TANEV](https://himalayas.app/@plamentanev): Senior Quality Engineer, Nuvolo
- [Natalia User](https://himalayas.app/@nataliauser5): ServiceNow Quality Engineer / QA Lead, Mobiz IT
- [Nikola Hristev](https://himalayas.app/@nikolahristev): Quality Assurance Engineer, Scalefocus
- [Igor Stolbtsov](https://himalayas.app/@igorstolbtsov): Quality Assurance Engineer, RegDesk, Inc
- [Vas Ata](https://himalayas.app/@vasata): Lead automation engineer, Ship Cars
- [Kristiyan Radev](https://himalayas.app/@kristiyanradev): Founder, Cipher Solutions
- [Rangel Stoilov](https://himalayas.app/@rangelstoilov): AI/Smart Contract Engineer, Vexity