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Chief Technology Officer
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Backend Development Services

Get a seamless product that meets market needs and offers an enjoyable UX. With extensive experience in diverse programming languages and the latest technologies, our highly qualified experts offer a variety of back-end services to different business verticals.

BackEnd Services Provided by Yojji

Being the most effective solution for cross-platform development, React Native helps rapidly create robust scalable apps. We provide the entire range of React Native development services to clients that seek a reliable vendor to build high-performance mobile applications with big volumes of ever-changing data. React Native reduces the loading times to a minimum thus boosting the overall performance greatly. Our team makes the most out of React Native technology and guarantees the on-time delivery of an app you will love. Here's the list of React Native application development services we offer:
Mobile App Back-end Development
Our software engineers deliver high-quality mobile applications that are up-to-date with the recent trends and win your customers’ loyalty. Our team of backend experts creates a custom back-end solution quickly and with care to every code piece. By using only cutting-edge technologies and programming languages (JavaScript, Python), we dive deep into your app’s business logic and synchronize all data across multiple platforms. We make sure your application is reliable, secure, covers all needs of end-users, and can be seamlessly integrated with third-party services.
Back-end Application Development
We develop efficient and scalable back ends tailored to your business needs and that are called to solve certain issues. By utilizing the latest technologies, we build fault-tolerant web solutions for various enterprises that process large volumes of data. During back-end application development, our engineers create a robust back-end from scratch, optimize and refactor an app, and add new features that extend the functionality. Complex web apps we deliver offer high stability, security, and scalability.
Technical Back-end Audit
Accomplished professionals offer a thorough back-end audit both to startups and large enterprises to optimize an existing solution or move a system to a new environment. The technical back-end audit we conduct focuses on the identification of bottlenecks, refactoring the code, revamping the architecture, improving app optimization, and integration of various services. After the audit is finished, we round up detailed reports and give our recommendations on how to prevent possible risks and eliminate existing ones.
Cloud Back-End Solutions
We deliver innovative cloud-based solutions that help your system scale naturally with the best cloud platforms in the industry. Our experts have deep knowledge and extensive experience in developing cloud products for businesses of all sizes. The products we deliver are scalable, run smoothly under heavy workloads, and are highly efficient as they can handle big data.

Pros of backend development with Yojji

Any technology

We work with all top-notch technologies and implement the best methods to achieve the greatest results.

End to end solution

Our team can cope with every task, from particularly back-end development to turnkey product development and launching the market.

Integration and support

We do not stop with single back-end development services. Our work is to deploy it, integrate it into your ecosystem, and provide its maintenance.

Key components of reliable backend

Performance

Our back-end development services include the implementation of state-of-the-art technologies which guarantee the best performance of the product.

Scalability

We do understand the importance of scaling up the product. Thus, our back-end development services provide the highest possible scalability for each project we take into work.

Security

We use the new-gen security protocols to ensure the highest protection level for the product. We implement risk management and DevSecOps principles to maintain top-notch security in our back-end development process.

Our Approach to Backend Development

Yojji offers services of both cross-functional teams and individual backend engineers. Our experts are well-organized, goal-oriented, punctilious, and flexible in terms of technologies and approaches used. Our development process is based on the Agile approach, which involves conducting regular sprints, each of which is devoted to working on a specific component of the program. Using this approach allows us to analyze and evaluate the results of our work.

Process of Backend Development

01

Entities and relations diagram

02

Database design

03

Design endpoints and documentation

04

Implement API

05

Writing tests & Deployment

StudyHall - Online platform for teachers and students

Industry: EdTech
Timeline: February 2024 - November 2024
Country: United Kingdom
React
Node.js

An innovative EdTech platform that leverages artificial intelligence to provide personalized learning experiences. It offers a wide range of interactive tools designed to help students and professionals enhance their knowledge, improve retention, and achieve their learning goals more effectively.

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CSI Helsinki Leading Legal Software Solutions

Industry: Legal
Timeline: August 2021 - September 2023
Country: Helsinki, Finland
React
React Native
k8s
Docker
Nestjs
Azure DevOps
Microsoft SQL

CSI Helsinki, a top software provider for the legal industry, offers a robust desktop application that streamlines lawyers' workflows with task tracking, invoicing, and communication tools. Known for its reliable service, CSI Helsinki has built a strong reputation as a trusted partner for law firms.

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STB Union — on a Mission to Make Finances Convenient for Everyone

Industry: Fintech
Timeline: February 2020 - Present
Country: Israel
React
React Native
Java

STB Union, a major FinTech player, partnered with Yojji to evolve from a traditional currency exchange network into a modern financial marketplace. The project aimed to develop a secure, scalable platform for multi-currency wallets, international transfers, and digital card services, using React JS, React Native, and Java to enhance STB Union’s service offerings and strengthen its position in FinTech.

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A matter of design

Industry: Ecommerce, AI
Timeline: June 2023 - November 2023
Country: Hong Kong
Remix
Nestjs
Cloudflare
Supabase

Discover AMOD, an AI-powered interior design and furniture shopping platform in Hong Kong, transforming the design experience with user-centric technology. This case study reveals AMOD’s journey—its goals, achievements, and strategies—creating a digital space for design enthusiasts and furniture lovers, reshaping the furniture shopping experience

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Worldwide Remittance SaaS Platform

Industry: Fintech
Timeline: Jan 2017 - Feb 2020
Country: Israel
React
React Native
Java

Vala facilitates direct money transfers between businesses, reducing transaction costs and creating new revenue streams. Our team handled the UI design, revamped the application’s admin panel, and built a mobile version from scratch. Ultimately, we were given full autonomy over project design and development decisions.

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Time Track System

Industry: Workforce Management
Timeline: Oct 2018 - Mar 2019
Country: Ukraine
Vue.js

The Time Machine app is designed to easily track and manage work hours. It features weekly timesheets for setting time frames and adding comments, all within an intuitive interface. We created this app to meet the client’s requirements, enabling employees to track task time by project and fostering streamlined team communication. Additionally, it provides top managers with tools to assess individual performance effectively.

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Covid-19 Symptom Screening & Tracking for Schools

Industry: Healthcare
Timeline: Mar 2022 – Present
(~1 year)
Country: USA
React
React Native

Symptomatical is a symptom management system developed to help companies and schools reopen safely and proactively manage COVID-19 risks. Our team enhanced the platform with analytics tools, an admin dashboard, a secure authorization system, a dedicated landing page, and Stripe API integration. This solution supports daily health screenings, enforces safety protocols, and ensures seamless operational continuity.

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Frequently asked questions

If any of the questions haven’t been covered yet, in this section, you may probably find the answers.

How long does the web development process last?
How much does it cost to make an application?
Why should I choose Yojji web development services?
Do you need more information?
Have an idea?
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Fill out our contact form for a free consultation, or book an online meeting directly via the Calendly link.
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.

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Meet up in person

NL, Amsterdam

Ildar Kulmuhametov
Ildar Kulmuhametov
CEO, Co-Founder

USA, Austin TX

Yevhen Piotrovskyi
Yevhen Piotrovskyi
CTO, Co-Founder

Spain, Madrid

Timofey Lebedev
Timofey Lebedev
COO, Co-Founder
Yojji logo
Let’s talk about your project
Meet up in person

NL, Amsterdam

Ildar Kulmuhametov
Ildar Kulmuhametov
CEO, Co-Founder

USA, Austin

Yevhen Piotrovskyi
Yevhen Piotrovskyi
CTO, Co-Founder
Clients say about us
quote
Yojji successfully delivered the project within schedule. They demonstrated excellent project management via weekly sprint demos and promptly made adjustments based on the client's feedback. Their responsiveness and collaborative attitude were key elements of their work.
Julian Leung
Product Manager - A Matter Of Design | Property Tech & Artificial Intelligence

5.0

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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
Alon Zion
Former Co-Founder, Vala

5.0

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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
Rohit Mahajan
Executive, Performlive Inc

5.0

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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
Noam Nevo
Co-founder of OSU

5.0

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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
Gareth Reese
Marketing Manager

5.0

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They are really nice people with excellent technical backgrounds.
Bjorn Beyersdorff
Bjorn Beyersdorff
CEO, Founder

5.0

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We used Agile project management methodology and were in contact with the team and project manager daily.
Arvind Sedha
Arvind Sedha
Software Development Director

5.0

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

5.0

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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
Lisa Ross
VP of Experience & Tech, Avenue

5.0

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