.NET and React engineering
We build custom software, end to end.
Back-end .NET, front-end React, and a founder who leads every build.
Most of our work is for software agencies and IT consultancies who have more projects than developers. We join your team, work in your tools, and build under your name. We also work directly with businesses that need a system built or an aging one brought up to date.
Our promise: if it deviates from the signed spec, we fix it free.
- One source of truth
- No manual re-keying
- Built to integrate
Manpreet Singh
Founder, PBX Digital — leads architecture on every engagement. LinkedIn
How we work
How an engagement runs
The same four steps on every engagement. Clear scope before any build, founder-led architecture, and a team that stays on through delivery — so bringing in an outside partner is predictable.
We scope it before we build it
A short intake call maps what you need against what you already have. You get a plan for scope, architecture, and timeline before any code is written.
The founder owns the architecture
Architecture and the decisions that matter stay with the founder, not passed to a junior or an account manager. Clean Architecture, SOLID, and security checks from the first commit, so the code is still maintainable after we hand it over.
We work inside your tools
Your Slack or Teams, your Jira or Azure DevOps, your cadence. White-labeled and invisible to your client, or named as a partner — your call.
The same team, start to finish
The founder plus two vetted .NET and React developers — the same people from first commit to handover. A busy month for your team doesn't turn into a hiring round, and nothing gets lost between phases of a longer build.
What we build with
- Backend
.NET & C#
Back-end services and APIs built on Clean Architecture and SOLID, designed to hold up as load grows.
Clean architectureSecure APIsScales with load - Frontend
React / Next.js
Front ends built with the App Router and server rendering, for fast pages and a clean experience on real devices.
App RouterServer renderingFast on real devices - Database
SQL Server
Relational data design, query tuning, and migrations planned around your maintenance windows, with a rollback path.
Data modelingQuery tuningSafe migrations
Where we're strongest
Strongest on the systems that are expensive to get wrong.
The hard part of most builds isn't a single feature. It's the business logic and the data moving between systems that were never meant to talk to each other. It's the work we've done most of.
The founder's background is in 3PL and warehouse systems — high-volume data where a failed sync stops the floor. The same discipline in security, data integrity, and audit logging applies to teams stuck between disconnected tools and manual workarounds.
Modernizing legacy systems
Add modern .NET and React modules alongside an old system to extend its life and features — a step-by-step alternative to a risky full rebuild.
Data integrity and audit tools
Business logic for high-volume data: audit logging and reconciliation you can hand to an auditor.
System and API integration
Custom integrations that connect older platforms to third-party services without breaking day-to-day operations.
From the blog
Notes from the work
- API
From Fragile Flows to Enterprise Engineering: Modernizing WMS Integrations
In the world of 3PL and logistics, data flow is the lifeblood of the warehouse. Yet, many teams are still relying on fragile “low-code” workflows that, while helpful in the beginning, eventually become the biggest bottleneck in the supply chain.
- LLMs
Demystifying LLMs: A Software Engineer’s Guide to How Language Models Actually Work
As software engineers, we are accustomed to building systems based on determinism—where an input X always produces a predictable output Z. When we start working with Large Language Models (LLMs), however, many of us fall into the trap of treating them either like a traditional, deterministic data...
- LLMs
From Code to Cognition: An AI Guide for Software Developers
As software developers, we are used to being the ultimate source of logic in our applications. We write the code, define the database schemas, and establish the API contracts. But recently, a new paradigm has taken over the industry: Artificial Intelligence.
Extra delivery capacity, under your name.
Book a 45-min intro call. We'll talk through where your delivery is under pressure and whether PBX is a fit — no deck, no obligation.