Oleksii B. - Blockchain Developer

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Grindelwald, Switzerland

Experience

Aug 2023 - Jan 2024

6 months

Blockchain Developer

Self-Employed

Developed ERC20 smart contracts with mechanisms for vesting, deployment, testing, and auditing.
Wrote a JavaScript application for managing transactions in Bitcoin, Ethereum, and Sepolia with a custom token.

Mar 2022 - Mar 2025

3 years 1 month

Software Engineer

Sixt Systems / Allane

Developed custom Drupal modules, implemented new websites on Drupal 9, and upgraded to Drupal 10 with database migration.
Configured GraphQL for efficient data retrieval by the front end.
Launched multisites for mobility consulting and car fleets (7+ projects).
Collaborated with DevOps to support continuous deployment and release quality control.

Oct 2020 - Apr 2022

1 year 7 months

Software Engineer, Drupal

Skilld.fr

Implemented new Drupal 9 websites.
Automated content migration and supported existing functionality.
Communicated with clients and offshore teams, participated in code reviews, and planned releases.

Dec 2017 - Aug 2018

9 months

Software Engineer

EPAM Systems

Developed Drupal 8 components for the Care4Today medical platform.
Worked on API development and integration, wrote tests, performed code reviews, and provided CI/CD support.

Apr 2017 - Dec 2017

9 months

Senior Drupal + React Developer

RAWPIXEL (Photomorphic)

Developed backend on Drupal and frontend on React; implemented eCommerce modules (Stripe, Taxamo).
Supported AWS infrastructure using Terraform and SQS.

Jan 2016 - Mar 2017

1 year 3 months

Backend Developer

Youwe

Managed the migration of multisites from Magento to Drupal, ensuring seamless data and functionality transfer, improving stability and security.
Developed custom modules for Drupal 7 and Drupal 8 for commercial multisites, adapting the product to customer requirements.
Provided regular security updates, maintaining compliance with GDPR and data protection standards.
Initiated and implemented a 3-month training course for Drupal beginners, contributing to team building and increased efficiency.
Created a bot module for Facebook Messenger API integration (drupal_bot_builder), automating user interaction and improving UX and conversion.
Prioritized tasks by business value and risk using Agile/Scrum methodologies.

Aug 2015 - Feb 2016

7 months

Backend Drupal Developer

OysterLabs (Sony Music)

Developed a Drupal 7 social platform for Sony Music Entertainment marketing events.

Mar 2015 - Aug 2015

6 months

Lead Drupal Developer

MASTER-OF-CODE (Lifechurch)

Refactored code, expanded functionality, and developed a multisite system.

Jun 2014 - Mar 2015

10 months

Backend Drupal Developer

NXTE (Google, Sony)

Developed Drupal 7 websites and wrote custom modules.
Created JSON API for high-load projects.

Sep 2013 - Apr 2014

8 months

Consultant salesperson and logistician

Brain store

Sold products, motivated employees, and managed logistics including unloading and shelf placement.
Recorded promotional video content to increase sales and organized wholesale sales.
Established business relationships with partners such as the Industrial Union of Donbas, Azovstal, and educational organizations.
Implemented innovative advertising with media clips at the Port City Shopping Center in Mariupol.

Jan 2011 - Dec 2014

4 years

Assistant Manager / Occupational Safety Engineer

United Energy Networks of Ukraine, MKP Symbol

Designed and approved the construction of power lines.
Supervised the connection of facilities to utility networks (electricity, gas, water, sewerage).

Jan 2006 - Dec 2025

20 years

Acting CEO / IT Product & Program Manager

Alef Invest

Responsible for P&L, product strategy, roadmap, release planning, backlog, and prioritization.
Coordinated DevOps, architects, security; implemented agile processes, monitoring task completion using KPIs.
Managed UX/Graphic, PM, and marketing teams; worked with international partners.
Formulated epics and wrote technical requirements for back-end and mobile clients.
Managed a budget of up to €500,000 per year and a team of 10+ specialists (DevOps, UX, security, marketing).
Implemented AI automation of PR reviews, reducing release time by 40%.
Planned and coordinated 6+ releases per year.
Defined epic “Car catalog” with user story “Automatic generation of SEO pages for 1080 cars” and acceptance criteria “100% of pages indexed by search engines, 35% increase in organic traffic in 3 months.”
Prioritized the backlog using RICE, accelerating key feature development and increasing user registrations by 20%.

Jan 2006 - Dec 2025

20 years

Economic activity without registration as a legal entity

Private Entrepreneur Bondarenko Oleksii Oleksiyovych

Conducted business activities in construction, international trade, finance, healthcare, and real estate sales and rentals.

Summary

Entrepreneurial IT Product Manager and Acting CEO with nearly 20+ years of experience in launching digital products (web & web3), managing cross-functional teams, and responsibility for technical, organizational, and financial results.

Focused on creating customer-centric mobile solutions that deliver business value.