• Post a Project

Blockchain Consulting & Development Partner

RedDuck is a team of engineers, product architects, and blockchain specialists helping Web3 companies launch faster and build better products.

We focus on practical engineering, clear architecture, and clean code — without unnecessary complexity or empty buzzwords.

Our team works with startups, protocols, and funds to:

  • Min project size
    $5,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    10 - 49
  • Locations
    Kyiv, Ukraine
  • Year founded
    Founded 2020
  • Languages
  • Timezones

Overview by:

Reviewer avatar
Mark Virchenko

4 Languages that we service

  • English
  • German
  • Ukrainian
  • Russian

37 Timezones that we service

EET
Eastern European Time (EET)
CET
Central European Time (CET)
EST
Eastern Standard Time (EST)
CST
Central Standard Time (CST)
IST
India Standard Time (IST)
GST
Gulf Standard Time (GST)
BST
Bangladesh Standard Time (BST)
AKST
Alaska Standard Time (AKST)
AGT
Argentina Standard Time (AGT)
ART
(Arabic) Egypt Standard Time (ART)
AST
Arabia Standard Time (AST)
HST
Hawaii Standard Time (HST)
IET
Indiana Eastern Standard Time (IET)
JST
Japan Standard Time (JST)
NST
New Zealand Standard Time (NST)
PST
Pacific Standard Time (PST)
SAST
South African Standard Time (SAST)
SST
Solomon Standard Time (SST)
PNT
Phoenix Standard Time (PNT)
SGT
Singapore Standard Time (SGT)
MET
Middle East Time (MET)
MIT
Midway Islands Time (MIT)
MST
Mountain Standard Time (MST)
NET
Near East Time (NET)
IDT
Israel Daylight Time (IDT)
GMT
Greenwich Mean Time (GMT)
CTT
China Taiwan Time (CTT)
EAT
Eastern African Time (EAT)
CAT
Central African Time (CAT)
CNT
Canada Newfoundland Time (CNT)
COT
Colombia Time (COT)
AET
Australia Eastern Time (AET)
BET
Brazil Eastern Time (BET)
ACT
Australia Central Time (ACT)
PLT
Pakistan Lahore Time (PLT)
PRT
Puerto Rico and US Virgin Islands Time (PRT)
UTC
Universal Coordinated Time (UTC)

1 Locations

  • Kyiv , Ukraine

Service Lines
Select Focus Area
Industries
Information technology
100%
Clients
Midmarket ($10M - $1B)
50%
Small Business (<$10M)
45%
Enterprise (>$1B)
5%

Pricing Snapshot

Min. project size $5,000+
Avg. hourly rate $50 - $99 /hr
Rating for cost 5 /5

Most Common Project Size

$50,000 - $199,999 based on 9 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

RedDuck Reviews

Submit a Review
All Filters

0 selected

Sort by
Services
Project Cost
Industry
Location

Blockchain Development for FinTech Company

  • Blockchain DevOps Managed Services Web Development
  • Azure Platform
    +21
  • $50,000 to $199,999
  • Sep. 2023 - Jan. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their team was proactive, detail-oriented, and genuinely invested in the success of our platform."

Apr 23, 2025
CEO, InvariFi
Mykola Ilchuk
Verified
  • Financial services
  • London, England
  • 1-10 Employees
  • Online Review
  • Verified

RedDuck developed a DeFi platform for a financial technology company. The team built the client's smart contracts, backend infrastructure, frontend app, user dashboard, landing website, and a tokenomics model.

Platform Development for Financial Services Company

  • Blockchain Web Development
  • Azure Platform
    +4
  • $50,000 to $199,999
  • Dec. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"RedDuck has been very productive in their time management and has always delivered on time."

Jul 31, 2023
Co-Founder, Financial Services Company
Tushar Sharma
Verified
  • Financial services
  • India
  • 11-50 Employees
  • Online Review
  • Verified

RedDuck has developed a financial service platform's front- and backend using Next.js and EVM. They write smart contracts for the client's blockchain layer.

Smart Contract Development for Metaverse

  • Blockchain Custom Software Development
  • Ethereum Development
    +4
  • $50,000 to $199,999
  • Feb. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their ability to take a deep look at a subject is impressive."

May 26, 2023
COO, Cuberium
Daniil Semenov
Verified
  • Other industries
  • Ukraine
  • 11-50 Employees
  • Online Review
  • Verified

RedDuck has developed a metaverse's smart contract. The service provider has adopted new technologies to build a gas-efficient architecture, implement best security practices, and add the required features.

Custom Software Development for Blockchain Company

  • Custom Software Development
  • $10,000 to $49,999
  • Mar. - Nov. 2021
5.0
Quality
4.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"I was impressed by RedDuck's large concentration of functional programming expertise."

Mar 18, 2022
Co-Founder, FoundryDAO
Schalk Dormehl
Verified
  • Other industries
  • South Africa
  • 1-10 Employees
  • Phone Interview
  • Verified

RedDuck provided software development for a blockchain company using Solidity, Ethereum, and F#. They helped build a mechanism to rapidly and thoroughly test Solidity code through a PI system for Ethereum.

API Interface Development for VPN Privacy Infrastructure Co

  • API Development Custom Software Development Web Development
  • Confidential
  • October 2022
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"RedDuck was to the point."

Jun 19, 2026
COO, NYM Technologies SA
Alexis Roussel
Verified
  • Telecommunications
  • Switzerland
  • 11-50 Employees
  • Online Review
  • Verified

RedDuck helped a VPN privacy infrastructure company create an interface for an API.

Cryptocurrency & Blockchain Dev for Asset Tokenization Co

  • Blockchain
  • Decentralized Finance
    +3
  • $50,000 to $199,999
  • Jan. - Apr. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"We are very satisfied."

Apr 21, 2025
CBDO, Red See Invest GmbH
Christian
Verified
  • Financial services
  • Germany
  • 11-50 Employees
  • Online Review
  • Verified

RedDuck provided cryptocurrency development services for an asset tokenization company. The team developed a non-custodial wallet infrastructure, created a token, and integrated swaps and a DApp browser.

Blockchain Development for DeFi Company

  • Blockchain
  • Confidential
  • Jan. 2024 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

“We think they are doing very well.”

Apr 8, 2024
Manager, Injex Finance
King Ahams
  • Financial services
  • South Africa
  • 1-10 Employees
  • Phone Interview

A DeFi company has hired RedDuck for development services. The service provider is supplying blockchain development and ensuring that everything is secure and properly audited. 

UX/UI Design for Blockchain Gaming Company

  • Blockchain UX/UI Design Web Development
  • Smart Contract Development
    +2
  • $10,000 to $49,999
  • Mar. - Apr. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"The team was adaptable and was able to manage all aspects of the project."

Apr 3, 2024
Founder, Mahico
Tom Dixon
  • eCommerce
  • United Kingdom
  • 1-10 Employees
  • Online Review

RedDuck designed smart contracts for a blockchain gaming company. They also created and managed the website and a pre-sale launch.

Custom Software & Web Dev for Web3 Game Dev Studio

  • API Development Blockchain Web Development
  • Ethereum Development
    +4
  • $10,000 to $49,999
  • June - Sep. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their professionalism and commitment to quality made the collaboration a true success."

Sep 13, 2023
Head of Solutions, Revolution Gaming
Markus Stenson
  • Arts, entertainment & music
  • Paris, France
  • 1-10 Employees
  • Online Review

RedDuck provided development services to a Web3 game development studio. The work included implementing a Merkle tree-based vesting smart contract, revamping a website, and developing a crypto payment gateway.

Showing 1-10 of 14 Reviews

Our Story

We are RedDuck, a Kyiv-based Web3 development and consulting team since 2020. Our mission is pragmatic blockchain engineering: we analyze product viability, design web3-native UX, build clean, fast smart contracts and full‑stack apps, and ensure quality through testing, warranty, deployment and maintenance. Our team trains via an internal Blockchain & DeFi academy and has delivered EVM, Solana, Cosmos, Substrate, Injective and Hyperledger projects with strong client satisfaction.

Meet the Team

Mark Virchenko

Mark VirchenkoCEO

CEO @ RedDuck Highly experienced in managing dev teams & engineering projects. RedDuck specializes at Solana, EVM and custom blockchains. We don't do marketing, we do technical delivery (dev & game theory)

What Sets Us Apart

Deep FinTech & Blockchain Expertise

Since 2020, we've delivered wallets, exchanges, trading systems, payment platforms, prediction markets, tokenization solutions, and complex fintech products. Our team understands both the technical and business challenges behind regulated and high-value financial applications

Senior Engineers, Not Junior Factories

We focus on quality over headcount. Clients work directly with experienced engineers and solution architects who have built production systems handling real assets, payments, trading, compliance workflows, and blockchain infrastructure at scale

From MVP to Production Scale

We help companies launch quickly without sacrificing long-term scalability. Whether it's an MVP, a platform migration, or a complex enterprise system, we design architectures that can evolve with your business rather than requiring costly rewrites later

Locations (1)

12 Saperne Pole Street KyivUkraine 02000

21 - 30

Contact RedDuck

If you’re not seeing exactly what you need here, send this company a custom message. You can talk about your project needs, price, and timeline to get started on your project.

Connect with RedDuck on Social

Get connected to see updates from RedDuck like new case studies, latest reviews, their latest masterpieces in their portfolio, delivered straight to you.

RedDuck

(1)
RedDuck Logotype

Mark Virchenko

Additional Connections

(5)