Oleksandr
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About Oleksandr
Oleksandr is a seasoned IT specialist with 17 years of experience in programming languages such as PHP, JAVA, and NodeJS. He has a proven track record of delivering high-quality projects and troubleshooting complex issues with precision and efficiency.
17
Years of
Experience
32
Happy
Clients
184
Complete
Projects
Skills
Java
97%
NodeJS
76%
PHP
82%
Expericence
Senior Back-End Developer
Globallogic
Date: 06.2021 — Present
Project description
The company has been the only major player offering its thousands of worldwide clients an all-in-one live event solution. Built through developing, acquiring, and integrating a suite of solutions for fan-centric data management, ticketing, mobile apps, payment services, and attendee engagement, the company's start-to-finish approach remains unmatched. The new name, Leap, better reflects the company's vision of empowering event organizers to elevate and transform how their attendees experience events through powerful technology and data insights. Technologies: node.js, express, koa, npm, typescript, php 7.4/8.1, cakePhp, composer, rest api, MariaDb, MongoDB, Redis, Kafka, microservices, react, js, css, git, jira, awsResponsibilities
● developed and implemented new features, resolving bugs, and managing timely releases with a high-quality performance
● led a team of software engineers, providing guidance and support to ensure the successful development
● developed and integrated new features into existing systems, enhancing functionality and user experience
● resolved bugs and technical issues promptly, minimizing downtime and improving overall system performance
Senior Back-End Developer
Papaya Global
Date: 03.2020 — 06.2021
Project description
Papaya Global is a SaaS fintech provider enabling automated, compliant, fast, and accurate global payroll and cross-border payments for enterprise clients looking to streamline their global payroll operations. Papaya's proprietary software – the Papaya Payroll OS - is the first solution unifying payroll and payments. The unified platform means complete visibility over the entire process – from employee onboarding to payment execution – through a single panel, without managing multiple vendor relationships or bank accounts. It processes global payroll and makes international payments to employees, authorities, and vendors in over 160 countries while supporting all types of employment (payroll, EoR, and Contractors) and delivering payments in over 100 currencies.Responsibilities
● eveloped and implemented new features, resolving bugs, and managing timely releases, ensuring a seamless user experience and high-quality performance
● improved bottleneck with the performance of the part of customer functionality, as a result reduced amount of memory usage and increased application's speed
● facilitated direct communication with stakeholders, actively participating in planning delivery and release phases to align with business objectives and timelines
● supported additional services and API integration, ensuring seamless connectivity and functionality across various systems and platforms
Senior Back-End Developer
Intellectsoft
Date: 08.2018 — 03.2020
Project description
The company has a wide range of live, print, and online products and services including test preparation, career exploration tools, memory retention techniques, professional writing services, and school, financial aid, and scholarship searches. Peterson’s test preparation products include online courses and practice tests as well as printed study guides. The site petersons.com looks like to informational guide to colleges and universities, also resource presents detailed information on over 4000 colleges and universities, online schools, and graduate programsResponsibilities
● took ownership of project maintenance, proactively identifying and resolving issues to ensure the stability and performance of the software
● led a team of developers, conducted regular 1-to-1 meetings, sprint planning, and code reviews to foster collaboration, knowledge sharing, and continuous improvement
● facilitated direct communication with stakeholders, actively participating in planning delivery and release phases to align with business objectives and timelines
● played a key role in the successful migration process from the old platform version to the new engine, ensuring a seamless transition and minimal disruption to business operations.
● supported additional services and API integration, ensuring seamless connectivity and functionality across various systems and platforms
● maintained clear and concise documentation, facilitating knowledge transfer and ensuring the smooth onboarding of new team members
Senior Back-End Developer
Provectus
Date: 02.2017 — 08.2018
Project description
At the heart of the PNP Loyalty Platform lies an exciting loyalty program designed for a network of gas stations. This innovative project involves seamless integration between POS terminals, tablets, and server-side microservices, allowing users to accumulate system points with each purchase. These points can then be redeemed for a variety of products, ranging from sandwiches and muffins to delightful cups of tea.Responsibilities
● Introduced new features and efficiently managed timely releases, ensuring continuous improvement and enhanced user experience
● Addressed bugs and implemented effective solutions, minimizing downtime and improving overall system performance
● Created and updated a robust REST API for the project's microservices, enabling seamless communication with external services and ensuring scalability and performance
● Successfully executed integrations with various third-party services, expanding the platform's capabilities and enhancing its value proposition
● Maintained clear and concise documentation, facilitating ease of understanding and seamless knowledge transfer between team members
Senior Back-End Developer
Intersog
Date: 09.2015 — 02.2017
Project description
I am proud to have been a vital contributor to the success of Videomedicine, an innovative healthcare project available on iOS, Android, and web platforms. This project has innovated the healthcare sphere by providing doctors and patients with seamless opportunities to schedule appointments, discuss medical concerns, engage in voice/video calls, and facilitate secure payments for healthcare services.Responsibilities
● Played a vital role as a Tech Lead and Senior PHP Developer in the success of Videomedicine, an innovative healthcare project available on iOS, Android, and web platforms
● Developed and implemented new features, resolving bugs, and managing timely releases, ensuring a seamless user experience and high-quality performance
● Collaborated with stakeholders to understand project requirements and translate them intotechnical solutions, ensuring alignment with business objectives
● Managed a team of developers, providing guidance, support, and fostering a collaborative and productive work environment