Software Engineering Consultancy
Plaintextnerds is a London-based consultancy firm of software, data, and network engineers with decades of experience building products that change the world.

Why us?
We’re a team of enthusiastic engineers who seek out innovation, drive creativity, and deliver scalable and performant solutions. Led by Tim Armstrong, the Lead Engineer behind projects like DeBeer’s Diamond Provenance Blockchain, Tracr.
Idea
You have an idea for a product, but don't have the team to build it.
Deployment
We help you through ideation, validation, implementation, production, and beyond.
Security vulnerabilities
The days of running bi-annual pentests and calling it good are long gone, bot networks scan everything you put online in seconds of it going live.
Automated security pipelines
We help you set up Dynamic Analysis Security testing (DAST), Static Analysis Security Testing (SAST), and Linting pipelines to validate your code before it goes live, and can even handle remediation of any detected issues.
Raw Data
Whatever the data, from Optical Time Delay Reflectometry (OTDR) to financial transactions to 3D point-clouds of diamonds.
Specialised AI Models
We build models to identify, isolate, and classify the features.
Laggy and Slow services
Modern software teams move fast, and don't usually have the time to prioritise performance until it becomes a problem, and when they do a lot of them don't know how to go about diagnosing and fixing performance issues.
Performance optimised solutions
Our team have extensive experience in performance optimisation, solving issues in days that take internal teams weeks to even identify.
Vibes
Vibe-coding is a great way to build a prototype and validate product-market fit, but what happens next? How do you take it to production without becoming another Tea App?
Production
With backgrounds spanning Finance, Telecoms, Cloud/Hosting, and SaaS from Start-ups and Scale-ups to Enterprise, our team of expert engineers understand building, deploying, and operating production services at every scale.
By the numbers
Experts in 14+ programming languages
Each senior member of our team has over a decade of experience in several programming languages, from HTML & Javascript to Rust & C++

Maintainers of 6+ open-source projects
We give back to the internet, maintaining and contributing the tools and libraries that we find useful in our work, or for the benefit of the internet.

100% committed to excellence
We aim to excel in everything we produce, from code to documentation, and take feedback seriously. We want to know that we're delivering the best experience at all times. If we fall short at any point let us know.