Quantum-cryptography communication platform built for ultra-secure messaging.
Telecom
We build real-time communication software for telecom vendors and enterprises. Unified communications clients, encrypted messaging apps, and collaboration platforms that handle demanding scale and strict reliability requirements.
What we do
Improve your
existing software
Already have a communication platform that’s falling short? We can extend its functionality, harden its security, or integrate it with other tools and services. For enterprise and institutional clients where reliability and data protection are non-negotiable, we’ll make sure your software meets those demands.
Build custom
software from scratch
We design and build communication software from the ground up — tailored to your protocols, your users, and your scale requirements. Whether it’s a UC client, an encrypted messaging app, a cloud-native communication platform, or a real-time collaboration tool with AI features, we’ll build it to work exactly the way you need it to.
Covering every type of real-time communication product

Carrier-grade telecommunication apps
We build UC clients for leading telecom software vendors, working closely with their engineering teams to deliver high-performance, cloud-native apps across every major platform. Our work in this space includes some of the most widely deployed communication clients on the market.

Rich instant messaging apps
We build encrypted messaging apps with one-to-one and group chat, voice and video calling, and rich push notifications. We work across protocols, from XMPP to RCS, depending on what your product needs. Our work with Ejabberd and XMPP helped Fling users send 50 billion messages.

Social apps
Want to build the next Instagram, TikTok, or something entirely new? We design and build the core features social apps depend on: video and audio feeds, real-time interaction, followers, and rich instant messaging.
Important features:
- Voice and video calls and conferencing
- End-to-end encrypted messaging
- RCS and XMPP protocol support
- Cloud-native deployment
- Multi-device and cross-platform support
- Whitelabel support
Our work

Scaled a 21 senior mobile team for a leading telco software vendor →
We scaled a global tech leader’s mobile engineering from a small iOS team to 21 engineers across four platforms, becoming fully integrated after strict due diligence and delivering reliable end-to-end support.
Industry
Telecom
Location
UK
Co. type
Enterprise

Built a mobile app for 70,000 Royal Caribbean crew across 40 ships →
We built a mobile app that brings crew communication, scheduling, and daily tasks into one place. Using React Native and Java Spring Boot, we designed the app to work reliably even offline, giving crew access to essential tools no matter where the ship is sailing.
Industry
Hospitality
Location
US
Co. type
Enterprise
- Qrypt
- Telco penetration testing
Security testing across 10 devices for a US telco giant.
Still unsure about something?
Don’t worry, whatever it is, we’ve got you covered in our FAQ.
At DECODE, we build custom software tailored to your business needs. This includes:
- Enterprise platforms – Scalable systems built for complex operations and high user volumes.
- Consumer-facing apps – Web and mobile products designed for usability and engagement.
- Digital transformation solutions – Modernizing legacy processes with IoT, automation, and smart integrations.
- Rapid prototyping & MVPs – Turning ideas into testable, launch-ready products quickly.
Every product we build is designed with scalability, maintainability, and long-term growth in mind, ensuring it continues to deliver value as your business grows.
DECODE has been delivering enterprise-grade software since 2012. A few examples include:
- Security enhancement for a US telco leader: Conducted penetration testing on mobile hardware and OS to ensure enterprise-grade security.
- Carrier-grade unified communications app: Partnered for 8 years, growing our team from 5 to 17 engineers while scaling the platform.
- Mobile version of a market-leading web SDK: Delivered with a team of 10 engineering experts for a long-term client.
- Banking apps for an Italian banking group: iOS and Android apps for a client with a market value of over €30 billion.
- Railroad reservation system: Delivered complex railroad asset allocation software within 4 months and built a team of 20 engineering experts in 6 weeks.
Our track record proves we can handle scale, complexity, and long-term partnerships.
Our engineers have deep experience tackling some of the most complex challenges across niche industries. Examples include:
- Disconnected global communication: Building a chat app for crew members traveling across the globe without reliable internet.
- Financial systems: Developing complex payment systems for large banks.
- Industrial / logistics: Implementing unique business logic for a $12B company.
- IoT & connected devices: Designing scalable solutions that connect physical devices with digital platforms.
This expertise means we can quickly step into niche industries and add value from day one, combining technical skill with strategic insight to solve even the toughest problems.
We work across the full spectrum of software development, from native mobile apps and cross-platform solutions to web applications, backend systems, and complex integrations.
We’re at our best on projects where our senior expertise can make a strategic difference.
- Enterprise collaboration: We often integrate with large in-house engineering teams to accelerate delivery and bring niche expertise. For example, we partnered with a US $12B company, joining a 200-engineer team with a small team of 10 high-quality experts, solving complex engineering challenges at scale.
- Greenfield projects: We also work with experienced founders to build products from discovery to launch. In these cases, we guide product strategy, design, and architecture while delivering high-quality, scalable code.
In short: Whether we’re strengthening an enterprise engineering team or building a product from scratch, we focus on projects where our expertise makes the biggest difference.
We start by analyzing your current workflows and identifying what slows your team down down. Then we design and build a custom software solution that simplifies those workflows.
For example, we can automate reporting and approval processes, replace spreadsheets with tailored platforms, or connect separate systems into a single, more efficient setup.
The result is software that fits with your existing tools, reduces manual work, and helps you make faster, data-driven decisions.
- How to build a secure AI development workflow
How to build security into your AI development workflow without slowing your team down. Controls, processes, and policies that actually work in practice.
- The hidden costs of poor documentation in software development
Poor documentation costs engineering teams up to $2M a year. Here’s what’s actually driving that number and how to fix it without slowing your team down.
- Essential skills for engineering managers: a practical guide
A practical guide to the essential skills every engineering manager needs, and how to develop them.

Our modus operandi
Work with us and you get a highly skilled team devoted to you and your product.





