Максим

Maksym Biletskyi
Email: [open contact info](look above in the "contact info" section) | Phone: [open contact info](look above in the "contact info" section) | Location: Lviv, Ukraine

SKILLS
●​ Ruby on Rails, Rspec, gems, Capybara, Sidekiq, Trailblazer, Hotwire, Python (Django,
DRF, Flask, Pandas, Matplotlib, Keras, TensorFlow, SqlALchemy), ElasticSearch
●​ React, Vue, HTML, CSS, SASS, Stimulus, Tailwind, Bulma
●​ PostgreSQL, MySQL, SQLite, MongoDB, Redis
●​ Git, AWS

EXPERIENCE

CPOMS – Full-Stack Software Developer (RoR)
London, UK
October 2024 – Present

●​ Worked on backend development across three teams, quickly onboarding into a
large legacy system and a new project within the same application.
●​ Served as the main backend developer for the initial implementation of a V2 API,
clarifying requirements and defining end-to-end data flows in collaboration with
multiple teams.
●​ Deployed and integrated a production LLM (OpenAI on Azure) — full ownership
from infrastructure and prompt engineering to backend and frontend.
●​ Investigated and helped resolve a complex cross-team backend defect by tracing
root causes across services and system layers.
●​ Contributed to test environment setup and backend-focused technical
documentation to support development and QA.
●​ Delivered secure, reliable backend solutions in compliance with public sector
security and data protection requirements.

Socialsuite – Full-Stack Software Developer (RoR)
City of Melbourne, Australia
October 2022 – October 2024

●​ Participated in the development of the startup project from its inception,
contributing to the creation of a monolithic application using Ruby 3+ and Rails 7+.
●​ Served as one of the main developers of the project architecture, participated in
solving problems with AWS and creating CI/CD infrastructure.
●​ Performed both back-end and front-end (Hotwire) developer duties, demonstrating
versatility in solving various technical problems and requirements.
●​ Integrated email tracking and OpenAI API to improve application functionality.
●​ Fixed bugs, performed code reviews, and maintained high code quality standards
across the development team.
PAIR Finance – Full-Stack Software Developer (RoR/Vue)
Berlin, Germany
October 2021 – October 2022

●​ Worked on various aspects of a large project in a core team of 7 members,
demonstrating a comprehensive skill set in RoR and Vue.js.
●​ Independently developed templates for court letters, which was an important part
of the project.
●​ Implemented modern styling features to improve readability and comprehensibility
of legacy code, which contributed to the overall improvement of the code base.
●​ Played a key role in the project's transition from Rails templates to Vue.js
components.
●​ Actively participated in the creation and development of a new modern application
design.
●​ Participated in joint discussions of new features, implemented them, and actively
contributed to bug fixes and code reviews in the development team.

Teamvoy – Full-Stack Software Developer (RoR/React)
Lviv, Ukraine
December 2020 – October 2021

●​ Participated in the development of the client's internal CRM product, overseeing
customer management for various subcompanies (subdomains).
●​ Specialized in working with ElasticSearch, optimizing search functionality to
improve performance.
●​ Successfully implemented a complex tagging system.
●​ Performed a variety of duties, including bug fixes, new feature implementation, and
occasional front-end tasks using React.
●​ Contributed to the overall improvement of the CRM product through collaborative
problem solving and innovation.

Teamvoy – Data Science Trainee
Lviv, Ukraine
May 2020 – December 2020

●​ Spearheaded a solo project focused on the automation and maintenance of the
client's CRM system database using Python ORM.
●​ Developed and enhanced algorithms for efficient data search and processing within
databases, emphasizing accuracy and speed.
●​ Implemented a web service using Flask to streamline data searching and
manipulation, improving overall accessibility and usability.
EDUCATION

●​ Lviv Polytechnic National University, Lviv – Bachelor of Computer Science, Artificial
Intelligence Department, 2018 – 2022
●​ Lviv Polytechnic National University, Lviv – Master of Computer Science, Artificial
Intelligence Department, 2022 – 2023