Denis Kostenko: Email & Phone Number

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Software Developer at OneReach.ai|Ukraine

Position:

Software Developer at OneReach.ai

Location:

Ukraine

View Denis Kostenko's Email

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Last updated: 2026-06-08

Updated: 2026-06-08

Found email addresses for Denis Kostenko:

Business emails:

d************o@proximaresearch.com

Personal emails:

k***@hotmail.com,

k***@i.ua,

d***@startup.network,

k***@onereach.ai

Found phones for Denis Kostenko:

+380-98-***-**32,

+380-68-***-**94,

+380-66-***-**50

A different Denis Kostenko?

Work Experience 5 years

Software Developer at OneReach.ai

Feb 2023 - Current

System Analyst at Proxima Research

Nov 2024 - Current

Communication & Partnership Manager at Startup.Network

Nov 2022 - Mar 2023

Operations & Partnership manager at Network VC Syndicate Fund (Silicon Valley Syndicate Club, SVSY.club)

Sep 2021 - Nov 2022

Denis Kostenko started working in 2021, then the employee has changed 3 companies and 3 jobs. On average, Denis Kostenko works for one company for 1 year 7 months.

Their professional focus is A/B Testing, Agile Methodologies, and API Development across 3 core areas.

Education

Master's degree at Kyiv National University of Construction and Architecture

Frequently Asked Questions

What is Denis Kostenko's email address?

SignalHire found verified email addresses for Denis Kostenko, both business and personal. Their business email is d************o@proximaresearch.com, and personal emails include k***@hotmail.com, k***@i.ua, and d***@startup.network.

What is Denis Kostenko's phone number?

SignalHire found multiple verified phone numbers for Denis Kostenko: +380-98-***-**32, +380-68-***-**94, and +380-66-***-**50.

How do I contact Denis Kostenko at OneReach.ai?

You can reach Denis Kostenko through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Denis Kostenko's professional background?

Denis Kostenko has 5 years of professional experience. They have held roles including System Analyst, Communication & Partnership Manager, and Operations & Partnership manager at companies such as Proxima Research, Startup.Network, and Network VC Syndicate Fund (Silicon Valley Syndicate Club, SVSY.club). Their education includes Master's degree from Kyiv National University of Construction and Architecture.

Is Denis Kostenko's contact information up to date?

Yes. Denis Kostenko's SignalHire profile was last updated on 8 June 2026, reflecting their current position as Software Developer at OneReach.ai in Denver, CO, United States.

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