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:
• launch lean and production-ready MVPs • design scalable blockchain architectures • develop secure smart contracts and backend infrastructure • guide technical decisions that support real product growth
What we do
Smart Contracts & Audit-Ready Code We build clean, modular, and secure smart contracts designed with real-world gas costs, audits, and production usage in mind.
Blockchain Architecture We design robust system architectures — from token mechanics and protocol logic to off-chain services and infrastructure.
Lean Web3 MVP Development We focus on building essential functionality first, allowing teams to launch quickly, test ideas, and iterate efficiently.
Technical Consulting & Product Thinking We don’t just implement code. We help founders ask the right technical questions and design systems that make long-term sense.
How we work
• No unnecessary over-engineering • Honest communication and transparent feedback • Fast execution without compromising core fundamentals • Focus on outcomes rather than feature lists • Long-term engineering principles over short-term trends
We collaborate closely with Web3 founders, product teams, and protocol builders.
Based in Europe, working globally. Hands-on from early product stages. Clear, direct, and efficient communication. Flexible engagement — from advisory sprints to full product development.
RedDuck offers competitive pricing and good value for cost, with clients noting their budget alignment and high-quality deliverables. Engagements range from $30,000 to $80,000, depending on project complexity, and they maintain strong communication and project management throughout.
One client noted a preference for earlier communication due to time zone differences, suggesting that RedDuck could consider hiring someone for morning shifts to improve international client interactions.
Effective Project Management
RedDuck is noted for excellent project management, maintaining clear communication, timely deliveries, and being responsive to client needs. Their use of tools like Jira and regular updates ensure projects remain on track.
Innovative Problem Solving
RedDuck is recognized for their creativity and ability to provide strategic solutions beyond just technical execution. They contribute valuable ideas to enhance client projects, demonstrating a commitment to client success.
Constructive Approach to Feedback
When receiving negative feedback, RedDuck is quick to adjust their approach rather than making excuses. This openness to improvement enhances their service quality and client relationships.
Impressive Code Quality
Multiple clients highlight the high quality of RedDuck’s code, noting its maintainability and professionalism. Their code has passed audits without major issues, reinforcing trust in their technical capabilities.
Rapid Delivery and Efficiency
RedDuck is commended for delivering projects ahead of schedule and managing resources efficiently. Their ability to meet or exceed deadlines is a significant advantage noted by clients.
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
Quality
5.0
Service & Deliverables
Schedule
4.5
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Custom Software Dev for Crypto Development Company
BlockchainCustom Software DevelopmentWeb Development
"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."
Quality
5.0
Service & Deliverables
"Outstanding quality of service and deliverables, showcasing remarkable expertise and dedication to excellence."
Schedule
5.0
On time / deadlines
"Unparalleled punctuality, consistently delivering ahead of schedule while maintaining exceptional quality"
Cost
5.0
Value / within estimates
"Incredible value for money, with the high-quality output far surpassing the investment made."
Willing to Refer
5.0
NPS
"Given the exceptional results and positive experience, I would highly recommend RedDuck without hesitation.
Smart Contract Development for Blockchain Company
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
Verified
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
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
"Mark and his team are the best. Smart, and reliable they will take your vision next level and far exceed expectations.
Showing 11-13 of
13 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 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
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.
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