Real-time communication engineering

We build the video calling inside your product.

Nine years shipping WebRTC that survives real networks — virtual clinics, job-fair platforms, tele-calling systems. Web, mobile and desktop.

> a real call, in your browser. nothing to install.

Transport
WebRTC · SRTP · ICE/TURN
Stacks
LiveKit · mediasoup · Janus
Clients
Web · Flutter · React Native · Electron
Record
9 yrs · 4.9★ · 100% on time
daniotech.com/call
Live E2E
R
You
guest
End

Single-use link · dies when the call ends

Built with

WebRTCLiveKitmediasoupJanusFlutterReact NativeElectronCapacitorNode.jsReactMongoDBCloudflare

Services

What we take on.

Real-time communication first, and the systems that surround it.

Custom Software Development

Tailored software solutions designed to meet your unique business requirements with scalability and security at the core.

  • /Enterprise-grade architecture
  • /Scalable cloud solutions
  • /Security built in from the start
Learn more

Virtual Job Fair Platforms

Comprehensive recruitment platforms enabling seamless virtual hiring experiences for enterprises and job seekers.

  • /Real-time video interviews
  • /Virtual booth management
  • /Candidate tracking system
Learn more

Virtual Clinics & Tele-Calling

Healthcare communication solutions connecting patients with healthcare providers through secure virtual platforms.

  • /Secure patient-doctor communication
  • /Appointment scheduling
  • /Tele-calling solutions
Learn more

Real-time Communication Systems

High-performance audio/video communication platforms built for enterprise-scale deployments.

  • /Low-latency audio/video
  • /Scalable infrastructure
  • /Multi-platform support
Learn more

Enterprise Web & Cloud Solutions

Robust web applications and cloud infrastructure designed for reliability and performance at scale.

  • /Cloud-native architecture
  • /High availability
  • /Auto-scaling capabilities
Learn more

Accessibility-Aware Development

Interfaces that work with screen readers and keyboards, built to WCAG 2.2 AA from the first component and tested with JAWS, NVDA and VoiceOver.

  • /WCAG 2.2 AA baseline
  • /JAWS, NVDA & VoiceOver testing
  • /Keyboard & focus management
Learn more

What we build

Three shapes of real-time system.

Most work falls into one of these. The hard part is never the happy path — it's the networks, the reconnects, and the edge cases.

01

Recruitment

Virtual job fair platform

Multi-room hiring events: live booths, queued candidate interviews, recruiter hand-off and session recording.

  • /SFU group rooms
  • /Waiting-room queueing
  • /Recording pipeline
  • /Event analytics
02

Healthcare

Virtual clinic & tele-calling

Patient-to-clinician consults with scheduling, in-call notes, and access logging suitable for regulated environments.

  • /1:1 encrypted consults
  • /Scheduling & reminders
  • /PSTN tele-calling
  • /Audit logging
03

Platform engineering

RTC stack migration

Moving products off metered SDKs onto self-hosted LiveKit or mediasoup, usually to cut per-minute cost and regain control.

  • /Agora / Twilio exit
  • /Self-hosted SFU
  • /TURN infrastructure
  • /Load & failover testing

Our own products

Products we build and run.

Alongside client work, Danio LLC owns and operates these sites. We designed, built and host every one of them — the same engineering we offer clients, live in production.

Fintech · Crypto data

DanioX

A live dashboard that scores which market "season" is running — dollar, gold, Bitcoin or altcoins — from public macro and crypto data, with a rule-based signal board and a published methodology.

/Next.js App Router · TypeScript · MongoDB · Vitest

Fintech · Pakistan equities

danioPSX

Live Pakistan Stock Exchange (KSE-100) market data, news, dividends and a beginner’s guide from opening an account to placing a first trade.

/Next.js App Router · TypeScript · MongoDB · Vercel Cron

E-commerce · Pakistan

DanioStore Pakistan

An online store for Peshawari chappals, khussa and shawls with cash on delivery across Pakistan.

/Next.js App Router · TypeScript · MongoDB · Resend

E-commerce · Cyprus

DanioStore Cyprus

The Cyprus storefront on the same platform, selling everyday electronics and home appliances such as power banks, smart plugs and air fryers.

/Next.js App Router · TypeScript · MongoDB · Resend

What we engineered for each product

How we work

Milestones, not status reports.

Every phase ends in something you can open and use.

  1. 01

    Scope

    Call, requirements, constraints. You get an architecture and a fixed milestone plan before anything is built.

  2. 02

    Prototype

    The riskiest part first — usually the media path. Proven on real devices and real networks, not localhost.

  3. 03

    Build

    Iterative delivery against the milestones, with working demos at each one rather than status reports.

  4. 04

    Harden

    Reconnects, poor networks, NAT traversal, device permissions. Where most WebRTC projects actually fail.

  5. 05

    Handover

    Documented, deployed and explained on a call, with the source in your repository.

Capabilities

The parts that actually break.

Anyone can get two laptops talking on the same wifi. This is the rest of it.

Media

  • SFU and peer-to-peer topologies
  • Simulcast and bandwidth adaptation
  • Server-side recording
  • Screen share and track replacement

Connectivity

  • ICE, STUN and TURN relays
  • Corporate firewall and CGNAT traversal
  • Reconnect and renegotiation logic
  • Network-condition telemetry

Clients

  • Browser (all major engines)
  • Flutter and React Native
  • Electron and Capacitor
  • Background and permission handling
  • Screen-reader and keyboard-accessible call UIs

Operations

  • Self-hosted SFU deployment
  • Autoscaling and failover
  • Call-quality dashboards
  • Cost modelling per minute

Verified record

Don't take our word for it.

Every number below is on the public Fiverr profile, rated by the clients who paid for the work. Open it and check.

Rating
4.9 / 5
Orders delivered
67
On-time delivery
100%
Selling since
2017

Questions

Things buyers ask first.

Can you work with our existing codebase?+

Usually yes. Most engagements are adding real-time calling to a product that already exists, or replacing a media layer inside one. We work in your repository, with your conventions.

We are on Agora or Twilio and the bill is climbing. Can you move us off?+

That is one of the most common jobs we take. Typically onto self-hosted LiveKit or mediasoup. The work is the migration path and the load testing — we model your per-minute cost before and after so the decision is made on numbers.

Our calls fail for some users and we cannot reproduce it.+

Almost always NAT traversal, a missing or overloaded TURN relay, or a renegotiation bug on reconnect. It is diagnosable — we instrument the ICE candidate flow and the failures usually become obvious within a day or two.

Can you make our product work with screen readers?+

Yes. We build new interfaces to WCAG 2.2 AA and remediate existing ones, testing against the screen readers people actually use — JAWS and NVDA on Windows, VoiceOver on Apple devices — rather than relying on an automated scan. Real-time UIs are the hard case and the one we know best: call controls that announce their state, live regions that report who joined without talking over you, and focus that goes somewhere sensible when a dialog closes.

How do engagements start?+

A call, then a written scope with milestones and a fixed price per milestone. You approve each one before the next begins. Ongoing work is contracted the same way.

Who owns the code?+

You do, on delivery. It lives in your repository throughout, so there is no handover cliff at the end.

Next step

Get on a call and see it working.

We send a single-use link. You join in the browser, we screen-share the architecture, and you decide whether it's a fit. No deck.

> typical response: under 24h on business days