With over 10 years of experience as a Full Stack Engineer, I specialize in developing and deploying robust applications using React.js, React Native, TypeScript, and Node.js. My career includes significant tenures at renowned companies like Atlassian, McKinsey, and IBM, where I honed my technical and leadership skills. Additionally, I founded a successful outsourcing company, leading a team of 40+ engineers as CEO/CTO, and provided technical guidance to over 50 startups, driving their technological growth and success.The stack of technologies I mostly use:Languages: JavaScript, TypeScript, Python, Solidity, CSS, HTMLFrontend: React.js, Next.js, Vue.js, GatsbyMobile: React Native, Cordova, Phonegap, iOS/AndroidBackend: Node.js, Express.js, Nest.js, Graphql ApolloDatabases: MongoDB, PostgreSQLCloud: Netlify, AWS, Firebase, SSTTools/Others: Docker, Vitest, Cypress, Graphql, SSR, Blockchain, LLMs, Gen AI
-
Full Stack EngineerFormula.MonksWarsaw, Pl
-
Full Stack EngineerFormula.Monks Apr 2022 - PresentUnited States- Created a cost-saving Proof of Concept using React.js and GraphQL, resulting in approximately $500k saved and optimized customer support in 1.5 months.- Engineered and implemented a highly scalable product, leading to a 20% increase in system performance and overall customer retention.- Developed a user-friendly aggregator platform utilizing IRS API to download and parse documents, improving accessibility for 2,000+ users in 7 months. -
Chief Executive OfficerCodempire Nov 2018 - Jul 2023- Led the growth of a Ukrainian outsourcing startup, overseeing a team of 40+ engineers and achieving a 15% increase in annual revenue.- Developed 10+ unique architectures for startup projects, leading to improved scalability and efficiency for each business within 2 years. -
Full Stack EngineerAtlassian Sep 2019 - May 2021Australia- Optimized a high-traffic website, reducing load times by 80% from 20 seconds to 4 seconds, resulting in improved user experience and increased user engagement in 8 months.- Implemented cloud setup, resulting in 25% faster application response time. - Unit and e2e testing led to a 15% decrease in critical errors, enhancing product stability. -
Full Stack EngineerSoftserve Sep 2017 - Oct 2019Kharkiv, Ukraine- Led development of a powerful enterprise dashboard, collaborating with multiple teams- Frontend development, unit testing, architecture meetings, stakeholder demos -
Mobile EngineerApplikey Solutions May 2017 - Aug 2017Kharkiv, Ukraine- Digitized a Danish company's newspaper into an audio player using React Native, migrating over 4,000 articles and news podcasts: https://www.zetland.dk/
-
Javascript/Asp.Net EngineerNew Line Technologies Apr 2014 - May 2017Kharkiv, Ukraine- I was the first to use React.js in the company when it didn't even support JSX.- Developed two enterprise products using React and ASP.NET for the server.
Oleksandr Sashchuk Education Details
-
Computer Science
Frequently Asked Questions about Oleksandr Sashchuk
What company does Oleksandr Sashchuk work for?
Oleksandr Sashchuk works for Formula.monks
What is Oleksandr Sashchuk's role at the current company?
Oleksandr Sashchuk's current role is Full Stack Engineer.
What schools did Oleksandr Sashchuk attend?
Oleksandr Sashchuk attended National Technical University "kharkiv Polytechnic Institute".
Free Chrome Extension
Find emails, phones & company data instantly
Aero Online
Your AI prospecting assistant
Select data to include:
0 records × $0.02 per record
Download 750 million emails and 100 million phone numbers
Access emails and phone numbers of over 750 million business users. Instantly download verified profiles using 20+ filters, including location, job title, company, function, and industry.
Start your free trial