At Jellyfish.tech, we bridge the gap between "it works as a demo" and "it's production-ready." In an era of instant AI prototypes, the real challenge isn't building fast—it's building right. We specialize in taking complex visions and turning them into stable, scalable, and secure digital products. Whether we are architecting an AI agent from scratch or rescuing a legacy system that has hit a technical ceiling, we focus on engineering integrity that supports business growth.
What we do best:
- AI-Driven Development & R&D. Beyond the hype. We build intelligent systems (LLMs, Agentic AI, Vector search) with deterministic logic and predictable costs.
- Software Modernization (The "Rescue Mission"). We take over legacy or fragmented AI-generated codebases, refactor the architecture, and make them scalable.
- MVP to Scale. We use AI to prototype in days, but apply senior human judgment to ensure the foundation can handle the first 10,000 users.
The Jellyfish.tech Advantage:
- We cut time-to-market by 30% using AI-driven prototyping (Vercel v0, etc.), allowing you to test hypotheses before committing to heavy development.
- We don't just "prompt" code. Our senior engineers define the architecture first, ensuring that AI-assisted contributions are secure, tested, and maintainable.
- Founded by product leaders, we speak the language of ROI and business logic, not just syntax and frameworks.
- We choose quality over quantity. You get direct access to senior expertise, transparency, and a team that takes full ownership of the outcome.
Core Industry Expertise:
- AdTech & Marketing Automation (Google Ad Grants tools, keyword intelligence, ROI tracking)
- AI Intelligence (Meeting automation, Agentic workflows, R&D)
Min project size
$10,000+
Hourly rate
$25 - $49 / hr
Employees
10 - 49
Locations
Kyiv, Ukraine
Year founded
Founded 2016
2 Locations
Kyiv , Ukraine
Kraków , Poland
No have been added yet...
Pricing Snapshot
Min. project size
$10,000+
Avg. hourly rate
$25 - $49
/hr
Rating for cost
4.9
/5
What Clients Have Said
Jellyfish.tech offers competitive pricing and good value for cost, with clients noting budget alignment and high-quality deliverables. Project costs vary, with one client investing over $10,000, while another reported $50,000-$100,000. Clients appreciate their reliability and proactive communication.
While Jellyfish.tech generally delivers reliable work, some clients noted occasional glitches and suggested improvements in testing processes to enhance overall quality control.
Adaptability to Client Needs
Jellyfish.tech is recognized for their adaptability and willingness to adjust to evolving project requirements and industry trends. Clients appreciate their flexibility and problem-solving approach in challenging situations.
Strong UI/UX Design Capabilities
The company is praised for their UI/UX design skills, improving user interfaces to be more intuitive and user-friendly. This has led to better user engagement and satisfaction across various platforms.
Strong Full-Stack Development Expertise
Jellyfish.tech demonstrates strong full-stack development skills, particularly in AI-powered platforms, Python, and custom web applications. Their work spans diverse projects, including AI-assisted content generation, PWA development, and Django-based platforms.
Valuable Technical Insights
Clients value Jellyfish.tech's ability to provide insightful technical advice that often leads to cost savings and improved project outcomes. Their expertise helps clients make informed decisions about technology and implementation strategies.
Positive Impact on Client Businesses
Jellyfish.tech's contributions have led to measurable business impacts, including increased user engagement, improved usability, and successful product launches, demonstrating their effectiveness in driving client success.
Web and Mobile Development for IT Services Provider
Web Development
$50,000 to $199,999
Jan. 2013 - Jan. 2016
4.0
Quality
4.5
Schedule
4.0
Cost
4.0
Willing to Refer
5.0
"Their communication is top-notch, they provide good services, and they have the proper skills."
May 8, 2017
Co-Founder, WebEffects Inc.
George Cretu
Verified
Other industries
Brasov, Romania
11-50 Employees
Phone Interview
Verified
Jellyfish occasionally augmented an internal IT development team to handle overflow of projects. They were often client-facing and worked with PHP, Angular, server-related tasks for AWS, and created web apps.
Jellyfish is a talented technical team, with the project management skills to back them up. They’re easy to get in contact with, and they consistently deliver on time and within budget. They have some room for improvement in their testing, but overall are a quality team with reliable deliverables.
A Clutch analyst personally interviewed this
client over the phone. Below is an edited
transcript.
BACKGROUND
Introduce your business and what you do there.
We do IT development for mobile and web applications, and I’m the co-founder of the company.
OPPORTUNITY / CHALLENGE
What challenge were you trying to address with Jellyfish?
We had a couple projects on which we needed help. We didn’t have enough staff back then, and the guys from Jellyfish helped us with the projects.
SOLUTION
What was the scope of their involvement?
They worked on two projects. They worked with PHP and Angular, and some server-related tasks for Amazon Web Service. They created web applications. We worked with two guys from Jellyfish. At times, they were working with our existing development team, and other times they were on their own on the project.
On one of the websites, they worked directly with my client. I wasn’t involved in that project very much. The other one is a social media app for sports. It has an awesome feature that records the last seven seconds of an action, something that happens on the field. It was pretty complex, and they managed to help with the backend part.
How did you come to work with Jellyfish?
My partner found them, but I don’t know how. I think it was online. In the past few years, we’ve looked at a lot of outsourcing companies, and Jellyfish seemed quite all right. They were very reliable and on-the-spot. The price is not the lowest, but it’s a very good price.
How much have you invested with Jellyfish?
We’ve invested $50,000-100,000 so far.
What is the status of this engagement?
We first started working with them in 2013, but I don’t remember the month. We still have them in our database for future projects, but we don’t need their help at the moment. The most recent project was completed in September or October of last year (2016).
RESULTS & FEEDBACK
Could you share any evidence that would demonstrate the productivity, quality of work, or the impact of the engagement?
I don’t have any data, as the clients are startups and they’re still looking for funding to properly launch their projects. The feedback was very good. The communication was good. The work they did was as expected, so everything was nice and sweet. There were times when some bugs were missed, but most of the time it was pretty good. We’re all human, so it’s okay. I’m satisfied with what they offered when we worked together.
How did Jellyfish perform from a project management standpoint?
That’s one of the key features they have. Their lead is very easy to contact, and he’s always available when you have a problem. The work was delivered on time and within budget most of the time. We used Skype to communicate previously, and we recently started using Slack. For project management, we mostly use Asana and JIRA.
What did you find most impressive about Jellyfish?
I think it’s the communication and the technical background.
Are there any areas Jellyfish could improve?
Maybe some improvement around testing. They’re doing quite a good job, but there are some glitches here and there. There’s always room for improvement.
RATINGS
4.0
"It’s a very nice experience to work with these guys. Their communication is top-notch, they provide good services, and they have the proper skills."
Quality
4.5
Service & Deliverables
Schedule
4.0
On time / deadlines
"With any project, there are always small delays. It cannot be perfect."
Cost
4.0
Value / within estimates
"It’s hard to give them a 5, but 4 is very good."
Willing to Refer
5.0
NPS
"I would be more than happy to recommend them to someone. I also want to work with them again.
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