Szymon Borucki - Full-Stack Developer

Q: Where is Szymon based?

Szymon is based in Warsaw, Poland .

Q: What languages does Szymon speak?

Szymon speaks the following languages: Polish (Native), English (Advanced) .

Q: How many years of experience does Szymon have?

Szymon has at least 12 years of experience. During this time, Szymon has worked in at least 3 different roles and for 7 different companies . The average length of individual experience is 1 year and 3 months . Note that Szymon may not have shared all experience and actually has more experience.

Q: What is Szymon's latest experience?

Szymon's most recent position is Full-Stack Developer at LetMePay .

Q: What companies has Szymon worked for in recent years?

In recent years, Szymon has worked for LetMePay , Xurrent , and Beema .

Q: Which industries is Szymon most experienced in?

Szymon is most experienced in industries like Banking and Finance , Information Technology (IT) , and Insurance . Szymon also has some experience in Education , Healthcare , and Real Estate .

Q: Which business areas is Szymon most experienced in?

Szymon is most experienced in business areas like Information Technology (IT) , Product Development , and Quality Assurance (QA) . Szymon also has some experience in Operations .

Q: Which industries has Szymon worked in recently?

Szymon has recently worked in industries like Information Technology (IT) , Insurance , and Banking and Finance .

Q: Which business areas has Szymon worked in recently?

Szymon has recently worked in business areas like Information Technology (IT) , Product Development , and Quality Assurance (QA) .

Recommended expert

Warsaw, Poland

Experience

Mar 2025 - Present

1 year

Full-Stack Developer

LetMePay

Maintain and extend features in a mature Ruby on Rails app dealing with payments and clinical trials
Manage server infrastructure

Oct 2022 - Mar 2025

2 years 6 months

Full-Stack Developer

Xurrent

Developed features in a large-scale legacy Ruby on Rails app, improving system performance and maintainability
Implemented AI features using AWS Bedrock and built supporting services in Python
Enhanced test coverage using Rspec and Cucumber
Used React to develop complex frontend solutions

Oct 2020 - Oct 2022

2 years 1 month

Full-Stack Developer

Beema

Redesigned insurance policy architecture, expanding product coverage to travel and health insurance
Migrated testing framework from Rspec to Minitest, mentoring the team on best practices
Improved developer-designer collaboration by refining workflows and improving UI/UX consistency
Introduced hotwire and support for native mobile apps

Oct 2019 - Oct 2020

1 year 1 month

Full-Stack Developer

LetMePay

Enhanced payment processing features and optimized backend workflows in Ruby on Rails
Diagnosed and solved performance bottlenecks, implemented caching strategies, and resolved N+1 query issues
Led frontend migration from Backbone.js to standard Rails stack, improving maintainability

Jun 2019 - Sep 2019

4 months

Full-Stack Developer

SonarHome

Developed core features for a real estate platform using Rails, React, and ElasticSearch
Wrote comprehensive tests to ensure system stability during high-traffic operations

May 2018 - Jun 2019

1 year 2 months

Full-Stack Developer

Educartis

Built and maintained a course-finding platform using Rails, Vue.js, and Algolia Search
Integrated third-party APIs (e.g., Pipedrive) and optimized page load times
Migrated features away from Vue.js to simplify the stack

Feb 2015 - May 2018

3 years 4 months

Full-Stack Developer

LetMePay

Enhanced payment processing features and optimized backend workflows in Ruby on Rails
Diagnosed and solved performance bottlenecks, implemented caching strategies, and resolved N+1 query issues
Led frontend migration from Backbone.js to standard Rails stack, improving maintainability

Nov 2014 - Jan 2015

3 months

Web Developer

Freelance

Delivered custom web solutions for clients, focusing on small business needs

Aug 2014 - Oct 2014

3 months

Ruby & JS Developer

Bitmaker Labs Developer Bootcamp

Completed an intensive full-stack development bootcamp focused on Ruby, Rails, and JavaScript

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Banking and Finance (5 years), Information Technology (3.5 years), Insurance (2 years), Education (1.5 years), Healthcare (1 year), and Real Estate (0.5 years).

Banking and Finance

Information Technology

Insurance

Education

Healthcare

Real Estate

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (11.5 years), Product Development (5.5 years), Quality Assurance (2.5 years), and Operations (1 year).

Information Technology

Product Development

Quality Assurance

Operations

Summary

Full-stack software engineer with over 10 years of experience specializing in Ruby on Rails, testing, and complex legacy systems. Skilled in designing scalable architectures, improving code quality, and leading technical initiatives. Passionate about clean code, performance optimization, AI integrations, and mentoring developers.

Skills

Languages & Frameworks: Ruby, Ruby On Rails, Javascript, React, Python, Hotwire, Turbo
Databases & Search: Postgresql, Elasticsearch, Mysql
Testing: Rspec, Minitest, Cucumber
Devops & Cloud: Aws (Bedrock), Heroku

Languages

Polish

Native

English

Advanced

Profile

Created

November 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Szymon based?

Szymon is based in Warsaw, Poland.

What languages does Szymon speak?

Szymon speaks the following languages: Polish (Native), English (Advanced).

How many years of experience does Szymon have?

Szymon has at least 12 years of experience. During this time, Szymon has worked in at least 3 different roles and for 7 different companies. The average length of individual experience is 1 year and 3 months. Note that Szymon may not have shared all experience and actually has more experience.

What roles would Szymon be best suited for?

Based on recent experience, Szymon would be well-suited for roles such as: Full-Stack Developer, Web Developer, Ruby & JS Developer.

What is Szymon's latest experience?

Szymon's most recent position is Full-Stack Developer at LetMePay.

What companies has Szymon worked for in recent years?

In recent years, Szymon has worked for LetMePay, Xurrent, and Beema.

Which industries is Szymon most experienced in?

Szymon is most experienced in industries like Banking and Finance, Information Technology (IT), and Insurance. Szymon also has some experience in Education, Healthcare, and Real Estate.

Which business areas is Szymon most experienced in?

Szymon is most experienced in business areas like Information Technology (IT), Product Development, and Quality Assurance (QA). Szymon also has some experience in Operations.

Which industries has Szymon worked in recently?

Szymon has recently worked in industries like Information Technology (IT), Insurance, and Banking and Finance.

Which business areas has Szymon worked in recently?

Szymon has recently worked in business areas like Information Technology (IT), Product Development, and Quality Assurance (QA).

What is the availability of Szymon?

Szymon is immediately available part-time for suitable projects.

What is the rate of Szymon?

Szymon's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.