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Oleksandr Sashchuk Email & Phone Number
Full Stack Engineer
at
Formula.Monks
LinkedIn matched
✓ Verified Jul 2026
3 data sources
Profile completeness 86%
Current company
Role
Full Stack Engineer
Location
Warsaw, Mazowieckie, Poland
Company size
Who is Oleksandr Sashchuk? Overview
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Quick answer
Oleksandr Sashchuk is listed as Full Stack Engineer at Formula.Monks, a with 251 employees, based in Warsaw, Mazowieckie, Poland. AeroLeads shows a matched LinkedIn profile for Oleksandr Sashchuk.
Oleksandr Sashchuk previously worked as Chief Executive Officer at Codempire and Full Stack Engineer at Atlassian. Oleksandr Sashchuk holds Master'S Degree, Computer Science from National Technical University "Kharkiv Polytechnic Institute".
Company email context
Email format at Formula.Monks
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Formula.Monks
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Profile bio
About Oleksandr Sashchuk
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
Current workplace
Oleksandr Sashchuk's current company
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Formula.Monks
7 roles
Oleksandr Sashchuk work experience
A career timeline built from the work history available for this profile.
Full Stack Engineer
Current- 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.
Apr 2022 - Present
Chief Executive Officer
- 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.
Nov 2018 - Jul 2023
Full Stack Engineer
- 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.
Sep 2019 - May 2021
Full Stack Engineer
- Led development of a powerful enterprise dashboard, collaborating with multiple teams- Frontend development, unit testing, architecture meetings, stakeholder demos
Sep 2017 - Oct 2019
Mobile Engineer
Applikey Solutions
- 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/
May 2017 - Aug 2017
Javascript/Asp.Net Engineer
- 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.
Apr 2014 - May 2017
1 education record
Oleksandr Sashchuk education
FAQ
Frequently asked questions about Oleksandr Sashchuk
Quick answers generated from the profile data available on this page.
What company does Oleksandr Sashchuk work for?
Oleksandr Sashchuk works for Formula.Monks.
What is Oleksandr Sashchuk's role at Formula.Monks?
Oleksandr Sashchuk is listed as Full Stack Engineer at Formula.Monks.
Where is Oleksandr Sashchuk based?
Oleksandr Sashchuk is based in Warsaw, Mazowieckie, Poland while working with Formula.Monks.
What companies has Oleksandr Sashchuk worked for?
Oleksandr Sashchuk has worked for Formula.Monks, Codempire, Atlassian, Softserve, and Applikey Solutions.
How can I contact Oleksandr Sashchuk?
You can use AeroLeads to view verified contact signals for Oleksandr Sashchuk at Formula.Monks, including work email, phone, and LinkedIn data when available.
What schools did Oleksandr Sashchuk attend?
Oleksandr Sashchuk holds Master'S Degree, Computer Science from National Technical University "Kharkiv Polytechnic Institute".
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