Custom Software Development Company

We are a global custom software development company specializing in the back-end, mobile, web, and cloud app development.

Our Teams

Our vast talent pool includes multiple back- and front-end developers, architects, BAs, and many more. Each of our employees has an excellent command of an impressive array of custom development technologies, which you may need to implement your system. Please see below for the details.

No need for individual staffing. We have already assembled, balanced, and focused engineering teams ready for onboarding.

At least 2 projects in common for every team member

Service Team (Micro-team) – group of engineers who already worked together and know how to do certain task/project.Service Team (Micro-team) – group of engineers who already worked together and know how to do certain task/project.

Established team process — task management, quality control, delivery of results, and so on

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Team specialization and focus on certain task types

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Existing business expertise for certain domains

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Service Team Structure

A Service Team (Microteam) is a group of engineers who have already worked together and know how to do certain tasks/projects.

Examples: mobile app team, back-end team, front-end app team, microservice/feature team, and so on.

And for bigger projects, we create project teams based on a set of microteams, thus making the entire staffing process easily scalable.

QA, UX, DevOps, and other resources may be part of a microteam or may work as a separate team depending on the project staffing requirements.

We may send you a couple of available team profiles within 3 business hours from your request time.

What We Can Do for You

We have extensive experience in delivering turnkey projects and an impressive array of custom software development services.

Cloud Application Development

For those of our clients wishing to leverage the power of cloud computing, we offer custom application development on Amazon Web Services (AWS) and Microsoft Azure. You can choose any other cloud vendor at your discretion, but these two are definitely our favorites.

Back-End Development

Back-end development has been our specialty since 2000. We're your #1 choice for omnichannel back-end development, API layer development, back-end troubleshooting & optimization, post-production support, back-end upgrade, integration layer development, back-end decoupling, implementation of integration stubs, and integration testing for the back end.

Custom Software Development

We're equipped with a great command of custom development tools and technologies and apply them guided by our deep and versatile domain knowledge. Our ample competencies include custom software development for banking, finance, fintech, insurance, multimedia, the IoT, healthcare, telemetry, and more. Besides, with us, you can hire any talents that your custom software project may need at any and all stages, from concept design to implementation and support. Building up a dream team is no longer a problem with Qulix.

See the scope of our custom software development services below to find if our expertise is a match for your project.

Web Application Development

Qulix takes pride in its knowledge of front-end development, Angular app development, React app development, and microfrontend implementation. Approach us with your web app development project to get top-notch results at a competitive price.

Mobile Application Development

We're a great vendor for mobile application development as well. Qulix boasts multiple domain knowledge (fitness, banking, insurance, multimedia, etc.) and is equally skillful at both iOS and Android app development as well as hybrid and cross-platform app development.

Cooperation Models


Add up some power to your team through hiring a new member. This can be a QA engineer, a BA, a developer or an architect — whoever you may need. Pay as you go and forget about hiring challenges.


Team augmentation may serve you well, but once you give a chance to TaaS, you'll see the difference at once. Hiring a team instead of a single talent brings impressive results due to the established workflows, clear allocation of roles and responsibilities, as well as high performance of a tightly knit team of talents.

Development Center

The DDC is an option for those willing to enjoy the great collaboration of TaaS and the exclusiveness of having their own development center. In terms of a workforce, you still have TaaS. Nevertheless, this advanced option implies allocating a separate workspace with your logo, separate server facilities, and project infrastructure for your DDC plus advanced security policies.

We always provide our clients with valuable insights regarding the most suitable cooperation model for their custom app development project based on our expertise and experience.

Cloud-Based Mobile Payment System

Cloud-Based Mobile Payment System

An upgrade of the cloud-based mobile payment system for Mozido, a global e-payment company with 2 bln users. A high-performing, easily scalable, and rock-solid alternative to banking services.

“They are very quick to respond when we have sourcing needs. They have some of the strongest engineers out of five or six offshore companies we work with. They seem to emphasize quality over quantity.”

Vice President of Innovation and Product, Mozido Inc.

Our Quality Philosophy

If you order custom app development at Qulix, we are ready to provide you with extras.

ISO 9001 Compliant

Our quality management practices meet the requirements of the global standards, including ISO 9001.

Multi-Layer QA

We care about quality on different levels — code level, architecture level, integration level, requirements level, etc.


We focus on automation of our QA activities trying to avoid any related human factors.

Default Process Framework & Audits

Our process is defined, described, and established. We perform regular process audits and assessments.


Igor Sheverov

Chief Technical Officer, Partner

“We are long-standing players in the custom software engineering market. Our teams know well how to create products that fully meet clients' expectations.”

We’re ISO 27001 compliant

Qulix is ISO 27001 compliant, which enables us to guarantee 100% information security for our employees and clients.

Custom Development: Industries and Categories

We've managed to accumulate vast experience in a number of industries and eagerly share it with our clients. At the same time, we are proud to have deep special expertise in Fintech, insurance, and the IoT, which are our majors.

Banking & Fintech

Implementation of e-banking software, digital marketplace, digital onboarding, payment systems, loan factory, e-invoicing, development of factoring solutions, mobile wallet, personal financial management (PFM)

Business Workflow Automation

Automation of goods delivery, business travel automation, implementation of e-procurement, agent, social care, and booking platforms

Media & Entertainment

Internet radio, meditation and relaxing apps

Internet of Things

Industrial telematic solutions, car parking automation, smart city, IoT marketing solutions


E-commerce implementation on the basis of nopCommerce

Technical Expertise


C#, .NET Core, ASP.NET MVC, ASP.NET Web API, ASP.NET SignalR, WPF, StimulReports, NHibernate, Entity Framework, Unity, StructureMap


JEE, Spring Framework (Spring Boot, Spring Data, Spring Integration, Spring Security, Spring Cloud, Spring XD), Hibernate, JSF, JAAS, JasperReports, Swagger, Grails, iBATIS, Velocity


Tomcat, JBoss, Glassfish, Oracle AS, WebLogic, WebSphere, RabbitMQ, Apache Camel, Kafka, Apache ActiveMQ, MSMQ, Activity BPM, Camunda

Cloud Techs

Amazon Web Services (AWS), Microsoft Azure, Amazon SQS, Azure Service Bus, Azure Queue, Amazon RDS, Amazon Aurora, Azure SQL Database, Amazon DynamoDB, Azure DocumentDB, Azure Table storage, Azure Blob storage, Amazon ElastiCache, Azure Redis Cache, Amazon CloudSearch, Azure Search


Cucumber, SonarQube, JMeter, ReSharper, QASymphony, Selenium, TestRail


Kentico, Orchard, nopCommerce, Umbraco, Sitecore, Liferay, Alfresco


Kotlin, Swift, Ionic, React Native, Xamarin, Objective-C

Enterprise Techs



Kubernetes, AWS CloudFormation, Apache Mesos, Docker, Gradle, Ansible, Puppet, Maven, Ant, Zabbix, Jenkins, CI/CD, ELK

Data Techs

RDBMS: Oracle, MySQL, PostgreSQL, H2, MongoDB, Apache CouchDB, Apache Cassandra, HBase, Firebase
Caching: Memcached, Hazelcast, Redis, EVCache
Search techs: Solr, Apache Lucene, Elasticsearch


Scala, Python (Django, Flask, RQ, Celery, Pylons), PHP (Drupal, Yii Framework, Zend Framework)


Thank you, !

Thank you for contacting us!
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Feel free to get in touch with us! Use this contact form for an ASAP response.

Call us at +44 151 528 8015
E-mail us at

Thank you!

Thank you for contacting us!
We'll be in touch shortly.

Go back to the home page

Feel free to get in touch with us! Use this contact form for an ASAP response.

Call us at +44 151 528 8015
E-mail us at