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Custom Software Development Company

We are a global custom software development company delivering back-end, web, mobile, and cloud solutions — accelerated by AI and led by experienced engineers.

AI in Custom Software Development

approach

AI is embedded into our delivery process to accelerate execution — not to replace engineering judgment.

We use AI to reduce friction across the entire custom development lifecycle, while architects, engineers, and QA specialists retain full ownership of system design, implementation quality, and production readiness.

Where AI Adds Value

Requirements & Discovery

AI assists in analyzing requirements, documentation, and existing systems, helping identify gaps, dependencies, and risks early. All outputs are reviewed and refined by business analysts and solution architects.

Architecture & Design

AI supports exploration of architectural options, integration patterns, and scalability scenarios. Final architectural decisions remain fully human-led and aligned with security and compliance requirements.

Development & Engineering

AI accelerates development through:
  • Boilerplate and scaffolding generation
  • Code refactoring and modernization
  • Support for API, backend, frontend, and mobile development
Engineers own the business logic, data models, performance tuning, and security controls.

Testing & Quality Assurance

AI-assisted testing, static analysis, and code review tools help detect issues early. Manual QA, security reviews, and performance testing ensure production-grade reliability.

Iteration & Scaling

As products evolve, AI supports faster iterations, safe refactoring, and system optimization — enabling controlled scaling without architectural degradation.

What This Means for Your Product
  • Faster delivery cycles
  • Lower delivery risk
  • Predictable quality
  • Systems designed to scale and evolve

AI helps us move faster. Our teams ensure your product is stable, secure, and built for real-world use.

Our Teams

people

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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

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

  • Team specialization and focus on certain task types

  • Existing business expertise for certain domains

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.

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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.

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

What We Can Do for You

services

We deliver custom software solutions combining deep domain expertise with AI-accelerated delivery. AI helps us move faster across analysis, development, and quality assurance, while experienced engineers and architects retain full ownership of design, security, and scalability.

We build custom systems for banking, fintech, insurance, and other technology-driven industries, engaging the right expertise at every stage — from concept to production and long-term support.

Explore our services below to see how our capabilities align with your product goals.

Cloud Application Development

We design and build custom cloud-native applications on Amazon Web Services (AWS) and Microsoft Azure, while remaining flexible to other cloud providers based on your requirements.

AI supports cloud delivery by:
  • Accelerating infrastructure design and configuration

  • Assisting with cloud-native patterns, scalability planning, and cost optimization

  • Supporting refactoring and migration of existing systems

All cloud architectures are reviewed and validated by cloud engineers to ensure resilience, security, and long-term operability in production environments.

Back-End Development

Back-end development has been our core expertise since 2000. We deliver robust, scalable back-end systems for complex, omnichannel products.

Our back-end services include:
  • API and integration layer development

  • Back-end optimization, refactoring, and upgrades

  • Integration stubs and integration testing

  • Post-production support and system evolution

AI accelerates back-end delivery by supporting boilerplate generation, refactoring, and static analysis, while engineers remain fully responsible for business logic, data integrity, security controls, and performance tuning.

Web Application Development

We build modern, high-performance web applications using Angular, React, and microfrontend architectures.

AI assists web development through:
  • Faster component scaffolding and UI logic generation

  • Support for code consistency, accessibility, and responsiveness checks

  • Accelerated refactoring and technical debt reduction

UX decisions, design systems, and final UI behavior are validated by frontend engineers and designers to ensure usability, maintainability, and a cohesive user experience.

Mobile Application Development

We deliver custom mobile applications across iOS, Android, and cross-platform frameworks, backed by strong domain expertise in areas such as banking, insurance, fitness, and multimedia.

AI supports mobile delivery by:
  • Accelerating setup of project structures and shared components

  • Assisting with API integration and standard user flows

  • Supporting refactoring and platform-specific optimizations

Our mobile engineers ensure native performance, platform compliance, and app store readiness — delivering mobile products built for real users and long-term growth.

Partnering with Qulix

why us?

Selected for The Global Outsourcing 100 list by IAOP (2020, 2022, 2023, 2024)

Selected for The Global Outsourcing 100 list by IAOP (2020, 2022, 2023, 2024)

Full-cycle development in the fintech domain: from traditional mobile banking solutions to full-scale neo-bank platforms

25+

years in the market

200+

clients in 30 countries

500+

qualified in-house engineers

Who We Work With

Banks, Fintechs & Financial Service Providers

Secure and compliant digital financial solutions, including e-banking platforms, digital onboarding, payment systems, lending and factoring solutions, e-invoicing, mobile wallets, and personal financial management tools.

Operations-Driven Businesses & Enterprise Teams

Custom platforms for automating operational processes such as goods delivery, business travel, e-procurement, agent workflows, social care systems, and booking platforms.

Media, Content & Wellness Product Teams

Digital products for content and wellness experiences, including internet radio platforms and meditation or relaxation mobile applications.

Online Retailers & Marketplace Operators

Scalable e-commerce and marketplace solutions, including custom implementations based on nopCommerce, designed for performance, integrations, and growth.

What You Get
  • A product aligned with real business workflows. Software built around your processes, users, and constraints — not generic templates.
  • Scalable system architecture. Solutions designed to handle growth in users, data, and transaction volume without rework.
  • Clear technical ownership. Transparent codebase, documentation, and knowledge transfer — no vendor lock-in.
  • Predictable development process. Defined milestones, timelines, and priorities with full visibility into progress.
  • Secure and compliant foundations. Architecture and development practices aligned with financial and data security requirements.
  • Seamless integrations. Clean integration with third-party services, APIs, payment providers, and internal systems.
  • A product ready for real users. Stable performance, tested flows, and production-ready infrastructure.
  • Long-term product evolution. A system that can be extended, optimized, and supported as your business grows.

Cooperation Models

Team Augmentation

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.

TaaS (Team-as-a-Service)

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.

Dedicated Development Center (DDC)

An advanced engagement model that provides a dedicated team, isolated infrastructure, and enhanced security — giving you the benefits of TaaS with the exclusivity of a fully branded development center.

Cutting-Edge Banking Solution

The development and deployment of digital channels for Eastern European banks of Société Générale Group. By leveraging Scaled Agile methodology and iBeacon technology, the Qulix team implemented an omnichannel internet banking system powered by Personal Finance Management, interactive dashboards, and battle-tested security mechanisms.

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“Thanks to the streamlined work of the Qulix team, we launched a high-quality banking solution to the market within the shortest timeframe. During the project implementation, their specialists willingly answered all the questions and adjusted the workflow to our current needs.”

Our Quality Philosophy

values

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.

Automation

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.

expert

Igor Sheverov

CEO at Qulix

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

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We’re ISO 27001 compliant

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

Technical Expertise

tech stack

Frontend
  • Angular
  • React
  • Vue.js
  • JavaScript
  • TypeScript
  • HTML5
  • CSS3
  • Bootstrap
  • Kendo
  • Redux
  • Sass
  • Tailwind CSS
Backend
  • Java
  • Spring Framework
  • Hibernate
  • Go
  • Scala
  • C#
  • .NET Core
  • ASP.NET
  • WPF
  • Kafka
  • Apache ActiveMQ
  • MSMQ
  • Node.js
  • Python
  • C++
  • C
  • PHP
  • TypeScript
  • Ruby
  • JavaScript
Mobile Apps
  • Swift
  • Kotlin
  • Flutter
  • Objective-C
  • Core Data
  • WatchKit
  • ARKit
  • Android SDK and NDK
  • Android Wear
  • AOSP
  • NFC
  • React Native
  • Ionic
  • Apache Cordova
Testing & QA
  • Selenium
  • Appium
  • TestComplete
  • Ranorex
  • Cucumber
  • JMeter
  • JBehave
  • LoadRunner Professional
  • Playwright
  • RestAssured
AI/ML
  • RASA
  • Azure Cognitive / ML
  • Watson
  • TensorFlow
  • R
  • Accord.NET
  • H2O.AI
  • Microsoft CNTK
  • dmlc MXNET
  • RAG
  • LLM
  • Azure AI Studio
  • Azure OpenAI
  • GPT–3.5/4/4.5/4o
  • BERT
  • PaLM
  • LLaMa
  • Claude
  • FastBERT
Data Analytics & Storage
  • PostgreSQL
  • MySQL
  • MS SQL
  • MongoDB
  • ClickHouse
  • Vertica
  • Google BigQuery
  • Azure Data Lake Storage
  • AWS Athena
  • AWS QuickSight
  • AWS Redshift
  • Azure Synapse Analytics
  • Azure Stream Analytics
BI & Data Visualization
  • Microsoft Power BI
  • Tableau
  • Apache Superset
  • Redash
Cloud & Middleware
  • AWS
  • GCP
  • Microsoft Azure
  • Kubernetes
  • Docker
  • RabbitMQ
  • Camunda
  • JBoss
  • Glassfish
  • Oracle AS
  • WebLogic
  • WebSphere
  • Apache Camel
  • Activity BPM
DevOps
  • Terraform
  • Ansible
  • Helm
  • AWS CloudFormation
  • Azure BICEP
  • GitHub Pipelines
  • GitLab CI/CD
  • ArgoCD
  • Jenkins
  • Bamboo
  • GitHub Actions
  • Prometheus/Grafana
  • Zabbix
  • Octopus
CMS
  • Umbraco
  • nopCommerce
  • WordPress
  • Kentico
  • Orchard Core
  • Odoo
  • Sitecore
  • Alfresco
Blockchain
  • Solidity
  • Ethereum
  • Bitcoin
  • Hyperledger
  • Ripple
  • Stellar
  • Binance Smart Chain (BSC)

This is Qulix’s core toolset, yet our capabilities go far beyond that. Share your project stack, and we will harness the required technologies within 1 month.

Contacts

get in touch

We’d love to hear from you!

Tell us about your project or the challenge you have, and we’ll get back to you soon.

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