Name: RedDuck
Address: Saperne Pole Street 12, Kyiv, Ukraine, 01042, UA
Telephone: +380500673074
Price range: $25 - $49
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
$1,000+
Hourly rate
$25 - $49 / hr
Employees
2 - 9
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: 90%
Web Development: 10%

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 $1,000+

Avg. hourly rate $25 - $49 /hr

Rating for cost 5 /5

What Clients Have Said

RedDuck offers competitive pricing and good value for cost, with projects ranging from $30,000 to $80,000. Clients praise their timely delivery, effective communication, and ability to manage complex projects efficiently.

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

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Website Development Packages

starting at $6,400/month

Blockchain Development Packages

starting at $6,400/month

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

Effective Communication and Responsiveness

The team excels in communication, using virtual meetings and messaging apps to maintain clear and responsive dialogue. Clients feel heard and valued, with feedback being implemented promptly.
Room for Process Evolution

While clients are generally satisfied, there is a recognition that RedDuck, like any long-term partner, can continue to evolve and refine internal processes to enhance service delivery further.
Trustworthy and Reliable Partner

RedDuck is regarded as a trustworthy partner, with clients expressing satisfaction with their reliability and integrity. Their commitment to client success fosters long-term relationships.
Punctual and Precise Deliveries

RedDuck consistently delivers on time, meeting client requirements with precision. Their punctual project management is highlighted across multiple reviews, indicating reliability in adhering to timelines.
Comprehensive Development Services

RedDuck offers end-to-end development services, from frontend and backend development to smart contract implementation and UI/UX design. Clients appreciate their ability to manage complex, full-cycle projects.
Strong Expertise in Blockchain and Web3

Clients praise RedDuck for their strong blockchain and Web3 expertise, citing their ability to deliver scalable, secure, and user-friendly crypto solutions. Their knowledge in smart contracts and tokenomics is particularly noted.

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RedDuck Reviews

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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

Software Development (Solana)

Development of Blockchain/Web3 software focusing on smart-contracts / DeFi / RWA on Solana.

Small

Allocation of a Solana developer

$6,400 /month

Project Scope Estimation: Ideal for well-scoped feature builds and MVPs — efficient, focused execution when the architecture and requirements are already defined

Medium

Allocation of a Senior Solana Developer

$9,600 /month

Project Scope Estimation: Best for standard production builds — dApps, protocols, and integrations that need an experienced engineer working independently end-to-end

Large

Allocation of a tech-lead Solana Engineer

$12,800 /month

Project Scope Estimation: Best suited for high-stakes builds — RWA platforms, institutional-grade DeFi, Prediction Markets — where investors and stakeholders expect senior-level oversight and predictable delivery

Features	Small $6,400 /mo	Medium $9,600 /mo	Large $12,800 /mo
Project Scope Estimation	Ideal for well-scoped feature builds and MVPs — efficient, focused execution when the architecture and requirements are already defined	Best for standard production builds — dApps, protocols, and integrations that need an experienced engineer working independently end-to-end	Best suited for high-stakes builds — RWA platforms, institutional-grade DeFi, Prediction Markets — where investors and stakeholders expect senior-level oversight and predictable delivery

Small $6,400 /mo
Project Scope Estimation	Ideal for well-scoped feature builds and MVPs — efficient, focused execution when the architecture and requirements are already defined

Medium $9,600 /mo
Project Scope Estimation	Best for standard production builds — dApps, protocols, and integrations that need an experienced engineer working independently end-to-end

Large $12,800 /mo
Project Scope Estimation	Best suited for high-stakes builds — RWA platforms, institutional-grade DeFi, Prediction Markets — where investors and stakeholders expect senior-level oversight and predictable delivery

Software Development (Ethereum/EVM)

Development of Blockchain/Web3 software focusing on smart-contracts / DeFi / RWA on Ethereum network.

Small

Allocation of an ethereum smart-contract developer

$6,400 /month

Project Scope Estimation: Ideal for well-scoped feature builds and MVPs — efficient, focused execution when the architecture and requirements are already defined

Medium

Allocation of a senior ethereum developer RWA/DeFi

$9,600 /month

Project Scope Estimation: Best for standard production builds — dApps, protocols, and integrations that need an experienced engineer working independently end-to-end

Large

Allocation of a tech-lead developer RWA/DeFi/Web3

$12,800 /month

Project Scope Estimation: Best suited for high-stakes builds — RWA platforms, institutional-grade DeFi — where investors and stakeholders expect senior-level oversight and predictable delivery

Features	Small $6,400 /mo	Medium $9,600 /mo	Large $12,800 /mo
Project Scope Estimation	Ideal for well-scoped feature builds and MVPs — efficient, focused execution when the architecture and requirements are already defined	Best for standard production builds — dApps, protocols, and integrations that need an experienced engineer working independently end-to-end	Best suited for high-stakes builds — RWA platforms, institutional-grade DeFi — where investors and stakeholders expect senior-level oversight and predictable delivery

Small $6,400 /mo
Project Scope Estimation	Ideal for well-scoped feature builds and MVPs — efficient, focused execution when the architecture and requirements are already defined

Medium $9,600 /mo
Project Scope Estimation	Best for standard production builds — dApps, protocols, and integrations that need an experienced engineer working independently end-to-end

Large $12,800 /mo
Project Scope Estimation	Best suited for high-stakes builds — RWA platforms, institutional-grade DeFi — where investors and stakeholders expect senior-level oversight and predictable delivery

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, efficient smart contracts and full‑stack apps, and ensure quality through testing, warranty, deployment and maintenance. Our team trains via our own academy and has delivered Ethereum/EVM, Solana, SUI, Hedera, Bitcoin, Injective and Hyperledger projects with strong client satisfaction.

Meet the Team

CEO @ RedDuck Highly experienced in managing software teams & engineering projects. RedDuck specializes at Solana, EVM and custom blockchains, delivering software and providing consulting on technical scope, user incentives and game theory in web3.

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

Notion

Zapier

GitHub

AWS

Azure DevOps

Docker

Google Sheets

Cloudflare

Azure

GitLab

Commonly Asked Questions

RedDuck specializes in Web3, TradFi / 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

Verified means Clutch independently confirmed RedDuck is a legally registered business and backed by 8 verified client reviews averaging 5.0 stars.

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 (2)

Saperne Pole Street 12 Kyiv, Ukraine 01042

6 - 9

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

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Mark Virchenko

Additional Connections

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RedDuck

Blockchain Consulting & Development Partner

Overview by:

4 Languages that we service

37 Timezones that we service

2 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

Effective Communication and Responsiveness

Room for Process Evolution

Trustworthy and Reliable Partner

Punctual and Precise Deliveries

Comprehensive Development Services

Strong Expertise in Blockchain and Web3

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

Packages

Packages we offer:

Software Development (Solana)

Small

Medium

Large

Software Development (Ethereum/EVM)

Small

Medium

Large

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 (2)