Name: RedDuck
Address: 12 Saperne Pole Street, Kyiv, Ukraine, 02000, UA
Telephone: +380500673074
Price range: $50 - $99
Rating: 5.0

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:

Mark Virchenko

CEO About the Team

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)

Service Lines

Blockchain: 100%

Select Focus Area

Blockchain Focus

Decentralized Finance: 25%
Ethereum Development: 25%
Smart Contract Development: 25%
Web3: 25%

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

What Clients Have Said

RedDuck is noted for providing good value for cost across various projects, with budgets mentioned ranging from $30,000 to $80,000. Clients emphasize timely delivery, effective communication, and quality work, making them a reliable choice for development services.

This summary is based on verified Clutch reviews.

Most Common Project Size

$50,000 - $199,999 based on 9 reviews

< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Learn more about SEO pricing

Select a service to see pricing information

RedDuck Review Insights

Overall Review Rating

5.0

Quality 4.9
Schedule 5.0
Cost 5.0
Willing to Refer 5.0

Top Mentions

Review Highlights

Tailored Solutions and Strategic Product Thinking

RedDuck excels at understanding client needs and delivering custom solutions that align with business goals. Their ability to combine technical expertise with strategic product thinking is frequently highlighted by clients.
Efficient and Reliable Team

Clients find RedDuck's team efficient, reliable, and responsive. The company is praised for its quick response to questions, openness to changes, and strong understanding of development needs.
Strong Project Management Skills

RedDuck consistently delivers projects on time and communicates effectively through virtual meetings and messaging apps. Clients praise their proactive communication, regular progress updates, and ability to adapt to evolving requirements.
Expertise in Blockchain and Smart Contracts

Clients commend RedDuck for their deep knowledge of blockchain technology and smart contract development. They successfully deliver scalable and secure solutions, demonstrating technical precision and creative vision.
Strong Functional Programming Expertise

RedDuck's expertise in functional programming, especially in languages like F#, is appreciated by clients who require specialized skills for testing and code development.
Improvements in Time Zone Coordination

One client noted a desire for better time zone coordination, suggesting the addition of morning staff to accommodate different time zones, particularly in Asia.

Was this helpful?

RedDuck Reviews

Submit a Review

Verified

All Filters

0 selected

Sort by

Blockchain
Ethereum Development Smart Contract Development Web3
$10,000 to $49,999
July 2022 - Ongoing

5.0

Quality: 5.0

Schedule: 5.0

Cost: 5.0

Willing to Refer: 5.0

"We're impressed with their ability to quickly address and troubleshoot any issues or bugs that arise."

Jul 30, 2023

Executive, Protocol Zero

Anonymous

Other industries
Los Angeles, California
1-10 Employees
Online Review

RedDuck has been tasked with building an account abstraction protocol in the form of a gasless Ethereum swap. This also involves creating various smart contracts on the backend and handling UI design work.

To the client's delight, all deliverables have been completed in a timely and professional manner. Reliable and efficient, the RedDuck team boasts the ability to resolve sudden issues quickly. The partners communicate via virtual meetings, email, and messaging apps.

The client submitted this review online.

BACKGROUND

Please describe your company and position.

I am an executive of Protocol Zero

Describe what your company does in a single sentence.

We are an account abstraction blockchain protocol

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire RedDuck to accomplish?

Develop a gasless ethereum swap

SOLUTION

How did you find RedDuck?

Upwork

Why did you select RedDuck over others?

High ratings
Pricing fit our budget
Company values aligned

How many teammates from RedDuck were assigned to this project?

6-10 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

Scope of work was to develop an account abstraction protocol in the form of a gasless ethereum swap. This would include various smart contracts on the back end ranging from Paymaster to Tokenswap. They've also done all the frontend UI work as well.

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

Theyve successfully been able to deliver any and all tasks asked of them in a timely and professional manner.

Describe their project management. Did they deliver items on time? How did they respond to your needs?

They delivered all milestones and responded to all my needs in a timely and professional manner

What was your primary form of communication with RedDuck?

Virtual Meeting
Email or Messaging App

What did you find most impressive or unique about this company?

We're impressed with their ability to quickly address and troubleshoot any issues or bugs that arise.

Are there any areas for improvement or something RedDuck could have done differently?

None

RATINGS

5.0

Blockchain
Ethereum Development Smart Contract Development Web3
Confidential
Jan. 2023 - Ongoing

5.0

Quality: 5.0

Schedule: 4.5

Cost: 5.0

Willing to Refer: 5.0

"They are reliable and nimble."

Jun 22, 2023

MD, Decentralized Borrowing Protocol Company

Anonymous

Other industries
United Kingdom
1-10 Employees
Online Review

A decentralized borrowing protocol company has hired RedDuck to develop smart contracts. The team builds smart contracts and does frontend development for the client's Ethereum-based borrowing protocol.

RedDuck has completed deliverables successfully and in their entirety. The team delivers work on time, meets requirements, and communicates effectively through virtual meetings, emails, and messages. Moreover, their reliability and agility are outstanding.

The client submitted this review online.

BACKGROUND

Please describe your company and position.

I am the MD of an information technology company

Describe what your company does in a single sentence.

Decentralised borrowing protocol.

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire RedDuck to accomplish?

Develop smart contracts

SOLUTION

How did you find RedDuck?

Online Search

Why did you select RedDuck over others?

High ratings
Great culture fit
Good value for cost

How many teammates from RedDuck were assigned to this project?

2-5 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

Develop smart contracts and front end for a Ethereum based borrowing protocol.

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

Yes - project completely successfully and entirely.

Describe their project management. Did they deliver items on time? How did they respond to your needs?

Mark and team deliver on time and get done whatever needs to get done.

What was your primary form of communication with RedDuck?

Virtual Meeting
Email or Messaging App

What did you find most impressive or unique about this company?

They are reliable and nimble.

Are there any areas for improvement or something RedDuck could have done differently?

At times, a degree of project management would have been helpful but it was resolved appropriately when discussed.

RATINGS

5.0

Blockchain Custom Software Development Web Development
Ethereum Development Smart Contract Development Web3
Confidential
Feb. - May 2023

5.0

Quality: 5.0

Schedule: 5.0

Cost: 5.0

Willing to Refer: 5.0

"Their project management was highly efficient and responsive."

May 25, 2023

Executive, Crypto Development Company

Anonymous

Other industries
Canada
1-10 Employees
Online Review

RedDuck designed and developed a custom frontend interface for a crypto development company. The scope included conceptualizing and building an advanced algorithmic bot to interact with the frontend.

RedDuck delivered a frontend interface that boosted user engagement, leading to more active users. The client was impressed with their efficient and responsive project management, adherence to timelines, and excellent listening skills. The team communicated clearly through meetings and emails.

The client submitted this review online.

BACKGROUND

Please describe your company and position.

I am an executive of Silver Street

Describe what your company does in a single sentence.

Cutting edge crypto development.

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire RedDuck to accomplish?

Develop a custom frontend for a cryptocurrency protocol.
Develop a bot to save time on complex crypto transaction.

SOLUTION

How did you find RedDuck?

Online Search

Why did you select RedDuck over others?

High ratings
Pricing fit our budget
Great culture fit
Good value for cost
Company values aligned

How many teammates from RedDuck were assigned to this project?

2-5 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

The work entailed spearheading the design and development of a bespoke, innovative front-end interface for a pioneering cryptographic protocol. This not only required a deep understanding of the nuances of cutting-edge encryption methodologies, but also the dexterity to create a user-centric, intuitive, and secure platform that seamlessly integrated these complex systems.

Moreover, the role also demanded the conceptualization and realization of an advanced algorithmic bot, designed to interact cohesively with this custom front-end. This bot was expected to offer real-time interactions, demonstrate intelligent decision-making abilities, and effortlessly navigate the interface, all while maintaining optimal security standards and enhancing the user experience.

Overall, the position was a remarkable blend of advanced software engineering, data encryption, AI programming, and UX/UI design, ultimately contributing to the evolution of crypto-technologies and shaping the future of secure digital interactions.

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

The project brought about several noteworthy improvements. The new front-end interface effectively boosted user engagement, leading to a significant rise in active users. The algorithmic bot showed increased efficiency, reflected in faster transaction speeds, improved accuracy, and reduced error rates. Additionally, the enhanced encryption techniques ensured the platform's security remained uncompromised.

Performance metrics, such as lower latency and faster load times, also improved noticeably, enhancing overall user satisfaction. Finally, the bot's interaction with the interface was smoother and more effective, with successful interactions and ease of navigation showing considerable progress. An uptick in customer satisfaction scores indicated positive reception from the user base, underlining the overall success of the project.

Describe their project management. Did they deliver items on time? How did they respond to your needs?

Their project management was highly efficient and responsive. They consistently adhered to timelines, delivering milestones punctually and often ahead of schedule. Their keen attention to detail and commitment to quality was evident throughout the project. In response to our needs, they demonstrated remarkable flexibility and proactivity.

They were attentive listeners, effectively integrating feedback into their workflow. They approached each challenge with a problem-solving mindset, often proposing innovative solutions. Their dedication to fostering a collaborative environment ensured our needs were always prioritized and well-addressed.

What was your primary form of communication with RedDuck?

Virtual Meeting
Email or Messaging App

What did you find most impressive or unique about this company?

What truly set this company apart was their innovative approach to problem-solving and their unwavering commitment to excellence. Their ability to seamlessly merge complex cryptography, cutting-edge AI, and intuitive design was nothing short of impressive. Moreover, their proactive and receptive communication style fostered a collaborative and productive work environment. They were always ready to go the extra mile to meet our needs, often surpassing our expectations. Their dedication to not just delivering, but excelling, made them unique in their domain.

Are there any areas for improvement or something RedDuck could have done differently?

None

RATINGS

5.0

"An exceptional partnership that exceeded expectations, offering an unrivaled blend of innovation, collaboration, and professionalism."

Blockchain
Smart Contract Development
Confidential
Jan. - Dec. 2022

5.0

Quality: 5.0

Schedule: 5.0

Cost: 5.0

Willing to Refer: 5.0

"They brought great ideas to make our product even better!"

May 17, 2023

CEO & Co-Founder, Two Lands

Jared Vergilis

Other industries
New Canaan, Connecticut
1-10 Employees
Online Review
Verified

RedDuck provided custom software development and advisory for a blockchain company. The team revised the client's smart contract and built additional layers of timed automation.

RedDuck delivered impeccable work on time. The team led smart and efficient project management and contributed valuable ideas. They communicated effectively through virtual meetings. The client also praised RedDuck's outstanding organizational skills.

The client submitted this review online.

BACKGROUND

Please describe your company and position.

I am the CEO and Cofounder of Two Lands

Describe what your company does in a single sentence.

We are a Blockchain company with an extensive ecosystem.

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire RedDuck to accomplish?

Contract development and advisory

SOLUTION

How did you find RedDuck?

Online Search
Other

Why did you select RedDuck over others?

Company values aligned

How many teammates from RedDuck were assigned to this project?

2-5 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

We needed our smart contract revised adding additional layers of timed automations

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

Mark and his team delivered an impeccable experience and deliverable product in extremely timely manner.

Describe their project management. Did they deliver items on time? How did they respond to your needs?

These guys were the best! Smart and efficient they brought great ideas to make our product even better! I highly recommend and will certainly be working with them again.

What was your primary form of communication with RedDuck?

Virtual Meeting

What did you find most impressive or unique about this company?

How organized and efficient they are.

Are there any areas for improvement or something RedDuck could have done differently?

Not at all. There is a reason why they win awards.

RATINGS

5.0

Showing 11-14 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

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

Quick Facts

6 years in business

Tools and Technology

Slack

Zoom

Google Meet

Google Drive

Notion

Zapier

Google Docs

Google Sheets

GitHub

AWS

Azure DevOps

Google Cloud Platform

Commonly Asked Questions

RedDuck specializes in fintech, blockchain, AI-powered products, trading platforms, prediction markets, crypto wallets, exchanges, payment infrastructure, and complex SaaS solutions. We work best with startups and established companies building technically challenging products that require strong architecture, scalability, and security

We start with a discovery call to understand business goals, technical requirements, and constraints. After reviewing the scope, we provide a realistic roadmap, milestone breakdown, timeline, and budget estimate. Our goal is to identify risks early and avoid costly surprises during development

Since 2020, we've delivered dozens of fintech and blockchain products, generated over $1M on Upwork, and maintained a perfect 5/5 Clutch rating. Clients choose us for deep technical expertise, transparent communication, and the ability to build complex systems such as wallets, exchanges, trading infrastructure, tokenization platforms, and payment solutions

Yes. We regularly build both startup MVPs and enterprise-grade platforms. Whether you need a rapid proof of concept, a production-ready application, or a long-term technical partner, we can assemble the right team and development process for your stage of growth

Our strongest expertise includes Blockchain (EVM, Solana, Bitcoin), FinTech, Payments, Trading Systems, Prediction Markets, AI Integrations, Mobile Apps, SaaS Platforms, Web Applications, Node.js, Python, React, React Native, NestJS, Solidity, Rust, AWS, PostgreSQL, Redis, Kafka, and cloud-native architectures

Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

Learn More

Verified Client Reviews: 8

Overall Review Rating: 5

Source: Clutch

Last Updated: July 16, 2026

Business Entity

Business Entity Name	RedDuck Limited
Source	Republic of Cyprus, Ministry of Commerce, Industry and Tourism
Jurisdiction of Formation	Cyprus
Date of Formation	March 10, 2025
Status	Active
Last Updated	March 18, 2026
ID	ΗΕ 472209

Credit Report Results

International Credit Risk Assessment	Not Rated
Source	Creditsafe
Last Updated	March 20, 2026

*Clutch performed additional verification on this company and confirmed that there are no negative legal filings or large outstanding debts. This company has also received 3 or more verified reviews on our platform.

Learn More About The Clutch Verification Process

Locations (1)

12 Saperne Pole Street Kyiv, Ukraine 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.

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)

Mark Virchenko

Additional Connections

(6)

RedDuck

Blockchain Consulting & Development Partner

Overview by:

4 Languages that we service

37 Timezones that we service

1 Locations

Services

Focus

Industries

Clients

Pricing Snapshot

What Clients Have Said

Most Common Project Size

Select a service to see pricing information

Reviews

RedDuck Review Insights

Overall Review Rating

Top Mentions

Review Highlights

Tailored Solutions and Strategic Product Thinking

Efficient and Reliable Team

Strong Project Management Skills

Expertise in Blockchain and Smart Contracts

Strong Functional Programming Expertise

Improvements in Time Zone Coordination

Reviews mentioning:

RedDuck Reviews

Custom Software Dev & Design for Blockchain Company

BACKGROUND

OPPORTUNITY / CHALLENGE

SOLUTION

RESULTS & FEEDBACK

RATINGS

Smart Contract Development for Borrowing Protocol Company

BACKGROUND

OPPORTUNITY / CHALLENGE

SOLUTION

RESULTS & FEEDBACK

RATINGS

Custom Software Dev for Crypto Development Company

BACKGROUND

OPPORTUNITY / CHALLENGE

SOLUTION

RESULTS & FEEDBACK

RATINGS

Smart Contract Development for Blockchain Company

BACKGROUND

OPPORTUNITY / CHALLENGE

SOLUTION

RESULTS & FEEDBACK

RATINGS

Portfolio & Awards

About the Team

Our Story

Meet the Team

Mark VirchenkoCEO

What Sets Us Apart

Quick Facts

Tools and Technology

Commonly Asked Questions

What types of projects is your team focused on?

How do you estimate project timelines and budgets?

Why do clients choose RedDuck?

Can you help with MVPs as well as large-scale products?

What technologies and industries do you have the strongest experience in?

Verification

Business Entity

Credit Report Results

Location

Locations (1)

Contact

Connect with RedDuck on Social

Connections

RedDuck

Additional Connections