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Custom Software · AI · SaaS

SolutionsfortheComplex,SimplifiedforYou

Transforming intricate challenges into seamless software solutions tailored to your business needs.

  • AI Integration
  • SaaS
  • Full-Stack
  • React Native
  • Fintech
What we do

Services built to scale with you

From back-end architecture to pixel-perfect interfaces — full-cycle engineering across the stack.

Web Development logo

Web Development

We build scalable and high-performance web applications tailored to meet your business needs.

Custom Development logo

Custom Development

We create intuitive and responsive mobile apps across iOS and Android platforms.

API Development logo

API Development

Our team designs visually appealing and user-centric interfaces, ensuring an exceptional digital experience.

Microservices Development logo

Microservices Development

We build scalable and high-performance web applications tailored to meet your business needs.

Mobile App Back-End Development logo

Mobile App Back-End Development

We create intuitive and responsive mobile apps across iOS and Android platforms.

Back-End Refactoring logo

Back-End Refactoring

Our team designs visually appealing and user-centric interfaces, ensuring an exceptional digital experience.

Back-End Development Technologies
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Selected work

Case studies that speak for themselves

Real products shipped end-to-end — across fintech, social platforms, CRM and beyond.

Software development case study

Software development

Country: England

Implementation time: 2023

Platforms: Web

About project: Content management system that helps organizations manage their HR functions and activities

Services: Discovery, Backend, Frontend, Design, QA

Technologies:

Backend — Python, FastAPI, Uvicorn, SQLAlchemy, Alembic, PostgreSQL, Unittest, Redis, Docker, Docker compose, Nginx, AWS , CI/CD (GitHub Actions), Certbot, Third-party API’s, Sentry

Frontend — JavaScript, React, HTML+CSS

QA — Manual, Automation (Playwright)

Design — Figma

Result: It has revolutionized ability to manage sales, hiring, project management, and leadership teams with unparalleled efficiency and effectiveness.

Social Networking case study

Social Networking

Country: USA

Implementation time: 2024

Platforms: Web

About project: Professional social networking platform designed to boost productivity and personal growth by streamlining connections and providing tailored recommendations.

Services: Discovery, Backend, Frontend, Design

Technologies:

Backend — Backend - Python, Django, DRF, Django channels, Celery, Celery crontab, Docker, Docker compose, PostgreSQL, MongoDB, Redis, Nginx, Github, Github Actions, Terraform, AWS, Sendgrid, Stripe, Celery, Sentry, Certbot

Frontend — JavaScript, React, Next.js, TypeScript, HTML+CSS

Design — Figma

Scrum tool — Jira

Result: The platform achieved high user satisfaction and retention, positioning itself as a valuable tool for productivity and personal growth.

CRM case study

CRM

Country: USA

Implementation time: 2023

Platforms: Web

About project: This is a platform for hyper-lessons that use virtual and augmented reality to bring education to a new level.

Services: Discovery, Backend, Frontend, Design

Technologies:

Backend — Python, Django, DRF, Django channels, Celery, Docker, Docker compose, PostgreSQL, Redis, Nginx, BitBucket, Sentry, Blender SDK

Frontend — JavaScript, React,, HTML+CSS

Design — Figma

Scrum tool — Jira

Result: Optimized AR/VR learning experiences with seamless UI/UX, robust backend architecture, and efficient frontend performance, ensuring accessibility, scalability, and smooth platform management for educators and students.

Ready to be our next success story?

We’re eager to help you. Connect with us to get started.

Why CSG

Why teams partner with us

A senior team that owns the outcome — from first call to long-term support.

01

Innovative Solutions

CSG leverage cutting-edge technologies to create scalable and efficient systems that give your business a competitive edge.

02

End-to-End Services

From initial consultation to implementation and support, we handle every step to ensure seamless integration and long-term success.

03

Expertise Across Industries

Our team brings years of experience and specialized knowledge, delivering tailored solutions that meet the unique challenges of your industry.

04

Collaborative Approach

We work closely with you to understand your goals, ensuring our solutions align with your business needs and drive measurable results.

05

Cost-Effective Solutions

CSG deliver exceptional quality while maintaining affordability, ensuring you get the best value for your investment.

06

Agile & Flexible

Our team adapts to your unique requirements, ensuring efficient workflows and timely delivery of every project.

Testimonials

What our clients say

Long-term partnerships built on delivery, communication and trust.

“CS Group was able to streamline processes, making it easier for business owners. Their team is skilled and delivers work at a reasonable cost. Their project management style is also excellent.”

Liam Wilson

Head of Development at AlphaCore

We had a bunch of tasks for Kirill and he implemented all of them within quite a short period of time - even earlier than we planned. So it was a very pleasant experience working with him. We'll definitely hire Kirill once again when the opportunity arises.

Daniel Brown

CMO at Digital Horizons

“Working with Diana on CSGroup was a pleasure. Her leadership, dedication, and expertise drove our project's success. With strategic vision and a hands-on approach, she inspired collaboration, overcame challenges, and ensured we achieved our goals efficiently.”

Michael Smith

CEO at InnovateTech

“CS Group was able to streamline processes, making it easier for business owners. Their team is skilled and delivers work at a reasonable cost. Their project management style is also excellent.”

James Carter

Project Lead at Agile Ventures

“CS Group was able to streamline processes, making it easier for business owners. Their team is skilled and delivers work at a reasonable cost. Their project management style is also excellent.”

Olivia Martin

Product Owner at TechForward

“CS Group was able to streamline processes, making it easier for business owners. Their team is skilled and delivers work at a reasonable cost. Their project management style is also excellent.”

Liam Wilson

Head of Development at AlphaCore

We had a bunch of tasks for Kirill and he implemented all of them within quite a short period of time - even earlier than we planned. So it was a very pleasant experience working with him. We'll definitely hire Kirill once again when the opportunity arises.

Daniel Brown

CMO at Digital Horizons

“Working with Diana on CSGroup was a pleasure. Her leadership, dedication, and expertise drove our project's success. With strategic vision and a hands-on approach, she inspired collaboration, overcame challenges, and ensured we achieved our goals efficiently.”

Michael Smith

CEO at InnovateTech

“CS Group was able to streamline processes, making it easier for business owners. Their team is skilled and delivers work at a reasonable cost. Their project management style is also excellent.”

James Carter

Project Lead at Agile Ventures

“CS Group was able to streamline processes, making it easier for business owners. Their team is skilled and delivers work at a reasonable cost. Their project management style is also excellent.”

Olivia Martin

Product Owner at TechForward

“CS Group was able to streamline processes, making it easier for business owners. Their team is skilled and delivers work at a reasonable cost. Their project management style is also excellent.”

Liam Wilson

Head of Development at AlphaCore

FAQ

Frequently asked questions

Complexity Solution Group

Solutions for the complex, simplified for you — full-cycle software engineering across the stack.

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