Let’s talk about your project
Meet up in person

NL, Amsterdam

Ildar Kulmuhametov
CEO, Co-Founder

USA, Austin

Yevhen Piotrovskyi
CTO, Co-Founder
Clients say about us

Yojji has delivered an accessible product with thorough consideration for the client's requirements. Users have commented on the platform's user-friendliness and speed. Moreover, the team is easy to communicate with and provides frequent updates. Their development and design skills are impressive.

Lisa Ross
VP of Experience & Tech, Avenue


They all had a super positive outlook and were dedicated to getting the work completed to a high standard.

Philip Black


We used Agile project management methodology and were in contact with the team and project manager daily.

Arvind Sedha
Software Development Director


They are really nice people with excellent technical backgrounds.

Bjorn Beyersdorff
CEO, Founder


As a company, we find Yojji to be excellent development partners - we cannot recommend them more highly and will be very happy to continue working with them in the future.

Gareth Reese
Marketing Manager


We’re very happy with the way that Yojji works, which is why we’ve spent so much money and engaged them for such a long time. We treat them as employees in regard to responsibilities and expectations, and they haven’t disappointed us.

Noam Nevo
Co-founder of OSU


Yojii is impressive both in quality of development work as well as their commitment. Strong focus on delivery, highly technical personnel, flexible approach that allows for rapid development. Strong processes that allow for solid controls.

Rohit Mahajan
Executive, Performlive Inc


Yojji was an instrumental part of the client’s team, working closely with them to achieve the product’s success. The team was very collaborative and timely, and their performance was amazing. Additionally, their resources were experienced, professional, and enjoyable to work with.

Alon Zion
Former Co-Founder, Vala


Covid-19 Symptom Screening & Tracking for Schools

Mar 2022 – Present
(~1 year)
hero image
About Symptomatical

The symptom management system that helps companies and educational institutions to reopen, be ahead of the COVID curve, and protect people from infectious diseases, a tool that helps create and sustain a safe environment at work and in school, manage the business processes to reduce the risks of suspending work, and arrange for the community's safety.

Customer Issues
  • there was a problem with getting information from users on the company's services;
  • the client wanted to form diagrams based on the questionnaires filled out by his users. He needed it for analytics to process the results of the questionnaire;
  • also, it was not possible to generate dashboards for the owner and administrator to update the organization settings;
  • needed a system for user authorization;
  • wanted to boost his business using a landing page;
  • develop the plan of payment system deployment using Stripe API.
Development Process
  1. The client and we reached a consensus on the overall concept of the solution and identified the primary issues to be addressed. 
  2. We conducted weekly status meetings with the project sponsor and key members of the team, during which we discussed action plans, solution concepts, and mockups. 
  3. We also provided demonstrations of the interim development progress and made necessary adjustments to ensure future solution scalability.
  • daily screening for users of organizations (questionnaire and results);
  • dashboard with charts for organization users' responses based on results of the questionnaire;
  • ability to group users and create facilities in the organization, maintain structure, and see users related to groups;
  • the ability for owner and admin to update settings for the organization (general, payments, invoices);
  • ability to maintain users in the organization (invite new users, change roles, remove users);
  • the onboarding process for the new organization (created after owner sign up);
  • authorization for invited users; - BE service to process results of the questionnaire;
  • schedule questionnaire;
  • payment plans based on Stripe API;
  • landing page for promotion.
Want to digitize in the healthcare sector?

Let’s create the next big project in the healthcare domain together. We apply our experience, growing expertise, and innovative tech stacks to develop a healthcare solution that will win over the market.


During the quarantine period, this example demonstrates the possibility of introducing solutions that assist healthcare companies in attracting new customers. Moreover, with these new features, the business processes of the company are more automated, which in turn optimized the work of employees and cut off the paperwork.

Products & Features

Landing page
Engaging more users
Web application
Well thought out UI/UX
Mobile app
Easy access on the go
Daily screening
Screen your health indicators through the questionnaire
Administrators can manage users and set their status easily
Education facility
Add facility and monitor all activity
The team
2 👨🏼‍💻 Front-end developers
2 👨🏼‍💻 Front-end developers
1 👨🏼‍💻 Mobile developer
1 👩🏽‍🎨 UI/UX Designers
1 🧙🏼‍♂️ QA Engineer
1 🧙🏼‍♂️ PM
Backend Technologies
  • Nest JS
  • Typescript
  • Node JS
  • PostgreSQL
  • TypeORM
  • AWSservices
Front-end Technologies
  • React
  • Typescript
  • tanstack-query
  • Ant design
  • Flutter
Third-party integrations
  • Stripe
Design and communication
  • Figma
  • Jira
  • Slack/Discord



Workforce Management Solution

Web development • QA
Open full case

Investment application

Mobile development • UI/UX
Open full case

Social Network App

Web development • Mobile development
Open full case
Have an idea?
Let’s work together


Fill out contact form or call us. We’ll set a call or in person meeting for free consultation.


We discuss your project even if you have just an raw idea


We choose a model and approach that are suitable for your case and budget

Meet up in person

NL, Amsterdam

Ildar Kulmuhametov
CEO, Co-Founder

USA, Austin

Yevhen Piotrovskyi
CTO, Co-Founder