We bring your ideas to life

About us

Tweerous is a Bulgarian-based full-stack software development and consultancy company founded by a team of highly qualified, experienced, enthusiastic and goal-oriented software developers.

Our top priority is to provide first-rate service reflecting our professional values and technical prowess we've gained throughout the years.

We value the relationships we create with our clients and base our collaboration on mutual trust and respect.


The Tweerous team has developed the core frontend and backend of the RISE Crypto Trading platform, a highly complex task that they mastered exceptionally well. A huge advantage of this team is that they are very much autonomous and don’t require micro-managed project management. True self-starters. RISE was a very complex FinTech product that usually requires double their team size but Tweerous managed to deliver a high-performant product with very little maintenance requirements on time and budget.

Maximilian von Wallenberg Pachaly

Chief Product Officer | RISE Wealth Technologies GmbH

I have worked with the Tweerous team on the UpTick mobile investment and trading platform for many years and can highly recommend their services. They deliver Triple-A products with clean code and have been a true CTO-level partner rather than only an outstaffed team. Their level of expertise when it comes to both frontend and backend is exceptional and you can be lucky to work with them if you have the chance.

Maximilian von Wallenberg Pachaly

Founder & CEO | UpTick Trading GmbH

We engaged Tweerous to solve a tricky legacy-code technical-debt problem with iOS and Cordova plugins. They proved themselves to be extensively knowledgeable and very easy to work with. They provided a clear-eyed assessment of the issue in a very short time, and unusually for the software world, an accurate effort estimate to resolve the problem. Moreover, they were helpful and generous with their time in educating us about the quirks and insider tips of the Apple Xcode build process. I am looking forward to working with Tweerous again in the near future!

Oliver Snow PMP, PRINCE2®

Chief Technical Officer | Senecto Ltd.


Throughout our careers we have worked on developing:

  • platforms for stock market and crypto trading with virtual competitions
  • high-frequency trading and portfolio management platforms
  • stock price movements predictions with news-implied information sentiment
  • air fare search solutions
  • custom GUI components
  • software performance analysis and profiling tools
  • mobile applications
  • web platforms
  • technical assessment of software products

for the companies listed below.

Tech Stack

Frontend Development

  • iOS
  • Swift
  • SwiftUI
  • Objective-C
  • React.js
  • Vue.js
  • HTML5 / CSS / Javascript
  • macOS / Cocoa

Backend Development

Cloud & PaaS:
  • Google Cloud Platform
  • Amazon Web Services
  • Firebase
  • Docker
  • Kubernetes
  • Node.js
  • Swift
  • C/C++
  • Python
  • PostgreSQL
  • MySQL
  • Redis
  • mongoDB

Machine Learning

  • deep neural networks
  • genetic algorithms
  • advanced optimizations
Python libraries:
  • PyTorch
  • NumPy
  • scikit-learn
  • pandas

Our services

Full-cycle product development

Full-cycle product development

We provide custom software development services choosing the right tech stack from desktop and mobile to web and cloud to help bring our clients' ideas to market as quickly as possible.

We assist our clients at each stage of the product development cycle: business and technical requirements gathering; cost and roadmap planning; architecture design; product implementation, launch and assessment.

Client-centered development

Client-centered development

We always put the client’s vision in the center of the development process.

Whether you have a rough concept or a detailed specification, we will apply our technical expertise and help you bring it to life.

You are in full control of the development of your product and steer it as you see fit.


Maintenance and further development

Once a software product is delivered changes are inevitable.

A stale product is a dead product as it becomes obsolete fast.

We provide maintenance services that include a variety of activities, the most common being error correction, functionality enhancements and optimization.

Consultancy at any stage

Consultancy at different stages

We provide consulting and advisory services at all stages of the product development - from initial concept to launch.

We dedicate time to understand your business, analyze your business processes and technical workflows, identify potential areas for improvement and recommend how to best align technology with your business objectives.

Independent code audit

Independent code audit

We offer independent project analysis, code audit and refactoring services for projects that are facing technical issues.

We provide a detailed analysis of the source code, identify bugs and vulnerabilities, and improve the existing codebase by restructuring it.

We make your code better and your product more robust.

Monitoring and control

Independent monitoring and control

Product owners sometimes lack technical background or time to validate the quality of the code delivered to them by their software development team.

In this regard, we also provide services as independent code quality control and close monitoring of the product development process.

Why choose us



We commit to help you achieve your goals and bring your ideas to life.

We dedicate particular care and attention to our work together and see to the successful and timely completion of your project.



We make it our priority to find the most optimal and cost-effective solution to your business needs.

We aim to build reliable software that stays within the budgetary constraints and requires minimum maintenance.


Versatility and flexibility

We constantly grow our technology stack and improve our skillset so that we are able to meet our clients' specific business needs and requirements.



We work hard to ensure a timely and trouble-free product delivery keeping our clients fully informed at all times.



We actively look for and suggest ways to improve the functionality and usability of your products.


Loyalty and trust

We recognize our clients as long-term partners and base our collaboration on trust and transparency.

As your technology partners, we are dedicated to walk the extra mile and harness complex technologies to help you achieve your business goals.

Contact us

Tweerous OOD

Park-Hotel Moskva
25 Nezabravka Str
Office 413
Sofia 1113