# Marcin Wysocki

[@marcinwysocki](https://hacklab.so/marcinwysocki)

Marcin Wysocki is Senior Software Engineer at Surfer, based in Wrocław, Poland. No AI coding activity was synced in the last 30 days.

Senior software engineer at Surfer with a mechatronics background\. Builds Elixir/Phoenix, GraphQL and React systems, with interests in AI and robotics\.

Location: Wrocław, Poland

Joined: 2026-09-04

3 followers · 0 following

## Links

- [GitHub](https://github.com/marcinwysocki)
- [LinkedIn](https://linkedin.com/in/wysocki92)

## AI usage (All time)

Total tokens: 8,402,096,529

| Harness | Tokens | Share | Most-used model |
| --- | ---: | ---: | --- |
| Claude Code | 7,835,672,251 | 93.3% | claude\-fable\-5\-1 |
| Codex | 566,424,278 | 6.7% | gpt\-6\-astra |

## Accomplishments

### [taskmaster](https://github.com/marcinwysocki/taskmaster)

Elixir library of convenience functions for concurrent tasks, loosely inspired by JavaScript's Promises, with no dependencies\. Created in 2020; owner of the repository\.

### [loadex](https://github.com/marcinwysocki/loadex)

Load testing tool written in Elixir \(3 stars\)\. Created in 2020; owner of the repository\.

### [nestjs\-typescript\-boilerplate](https://github.com/marcinwysocki/nestjs-typescript-boilerplate)

Boilerplate for Nest projects in TypeScript, including nodemon, TSLint and Prettier \(5 stars\)\. Created in 2017; owner of the repository\.

### [rxjs\-workshop](https://github.com/marcinwysocki/rxjs-workshop)

Exercises for an RxJS workshop, written in JavaScript \(2 stars\)\. Created in 2017; owner of the repository\. The repository does not state where the workshop was delivered\.

### [async\-snippets](https://github.com/marcinwysocki/async-snippets)

Code snippets for a talk on asynchronicity in JavaScript\. Created in 2018; owner of the repository\. The repository does not state where the talk was given\.

### Certificate in Advanced English \(CAE\)

Lists the Certificate in Advanced English \(CAE\)\. The language section lists English at full professional proficiency and Polish as native/bilingual\.

## Experience

### Senior Software Engineer — Surfer

2023\-07 – Present

Wrocław, Poland

Develops full\-stack product features and integrations using Elixir, Phoenix, GraphQL and React\. Improves crawling reliability, performance and observability, and created a reusable framework for generating AI articles\.

### Senior Full Stack Engineer — Bond Sports

2022\-07 – 2023\-06

Designed and implemented end\-to\-end features with the product team for an athletic\-facilities management platform\. Resolved critical performance and design issues across backend and frontend, introduced testing/architecture/performance practices, and guided teammates on architecture and database performance\.

### Software Engineer — FindHotel

2022\-01 – 2022\-06

Software engineering role from January through June 2022\.

### Technical Team Lead — BlockFi

2021\-07 – 2021\-11

Led a core part of a company\-wide decoupling effort, coordinated business and technical requirements and timelines across teams, and designed APIs and high\-level technical solutions\. Improved delivery processes and mentored teammates on testing, database performance, architecture and observability\. Stack: Elixir, Phoenix, Ecto, PostgreSQL and Jira\.

### Senior Software Engineer — BlockFi

2020\-09 – 2021\-07

Designed and developed core accounting structures, features and APIs\. Improved a legacy application’s test suite and database queries; mentored teammates on testing strategies, database performance, architecture and observability\. Stack: Elixir, Phoenix, Ecto and PostgreSQL\.

### Software Engineer \(Elixir/Erlang/Node\.js\) — RST Software Masters

2018\-05 – 2020\-09

Wrocław Metropolitan Area

Developed a scalable, highly available XMPP web messenger for Trans\.eu using ejabberd with custom Elixir and Erlang modules\. Developed and maintained Node\.js/TypeScript microservices; built and refined GitLab CI pipelines and Docker environments for automated integration and functional testing\.

### Frontend Developer — RST Software Masters

2017\-02 – 2018\-05

Wrocław Metropolitan Area

Developed React, Redux and TypeScript frontend modules for Trans\.eu, including a web messenger and message archive\.

### C\# / SQL Developer — Sente Systemy Informatyczne

2016\-01 – 2017\-01

Wrocław, Poland

Developed a web application using ASP\.NET MVC 6 and React/Redux\. Maintained and developed an ASP\.NET system backed by Firebird\.

## Education

### Bachelor of Engineering — Mechatronics, Robotics and Automation — Wrocław University of Science and Technology

Wrocław, Poland

Engineering degree in mechatronics, robotics and automation\. The profile gives 2017 as the degree year without monthly dates\.