Software studioLondon · Kuala Lumpur

LeojraLabs

We build enterprise-standard systems for companies that care about getting the foundations right. One or two clients at a time.

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Principle one

Restraint
over hype.

We don't adopt technology because it's new. We adopt it because it works. AI only where it solves a real problem; proven patterns everywhere else. Most software has too much in it. Ours has less.

Principle two

Details
over features.

A cart checkout that never breaks is worth more than ten features nobody asked for. We spend time where it shows.

Principle three

Precision
over shortcuts.

We don't ship fast and fix later. We iterate fast, but we build it right. Every architectural decision traces back to how the best engineering teams in the world solve the same problem at scale.

§ 02 — Principles01 / 03

§ 03 — How we buildInfrastructure, from day one

What we install

Structured loggingShopify

Audit trailsGitHub

Transactional outboxWise

IdempotencyStripe

AuthenticationMonzo

For operability, we study Google’s SRE practice — SLOs, error budgets, incident response, and adopt what fits a small team.

Why it matters

The gap between “deployed” and “production-grade.”

When engineers join companies like Stripe, Shopify, or Monzo, they inherit years of accumulated infrastructure and rarely think about how it was built. Solo founders and small teams start from zero, and the gap between “deployed” and “production-grade” is enormous. Most never close it.

We close it. We study the public engineering writeups from the companies that solved these problems at scale, and implement those patterns as real, working code, right-sized for smaller teams.

Infrastructure takes years to build.

We bring it to day one.

§ 04 — Selected workSelected engagements

Cloud platform and engineering foundation

2023 – present · Logistics freight forwarder

TypeLogistics SaaS platform

FrontendReact · TypeScript

APINode.js · Express

DataPrisma · MS SQL

InfrastructureAWS

IaCTerraform

AuthOIDC · AWS Cognito

AccessCloudflare Zero Trust

ObservabilityPino · OpenTelemetry

Our first client, and a relationship that began in 2023 — first in-house, now as their independent software partner. We built the customer-facing tracking platform, then established the whole platform on AWS: a pnpm and Turborepo monorepo across three products, Terraform-provisioned environments, CI/CD on ECS Fargate, and automated reporting on Lambda and Step Functions, with Cloudflare Zero Trust and OIDC at the edge.

HighlightsSet up the entire engineering foundation from scratch — version control, cloud, CI/CD, and documentation where none existedOne platform, both customer-facing and internalRe-platformed a legacy MS Access system with zero-downtime migrationsNew environments from ~1.5 weeks to under 3 hours+20% daily active users; −80% freight-status enquiries

Real-time AI voice console

2025 · Conversational-AI startup

TypeAdmin console

FrontendReact · TypeScript

RealtimeWebSocket

AIVoice · LLM APIs

DesignFigma → production

Brought in to cover a short-staffed team. Owned the frontend end-to-end — a console streaming real-time multilingual AI voice transcripts and intent events over WebSocket — from Figma to production in a three-month engagement.

HighlightsReusable UI patterns under fast-evolving requirementsShipped solo, end-to-end, in three months

§ 05 — CurrentlyUpdated quarterly

June 2026

Building the Leojra Kit — a full-stack starter kit for solo founders who want enterprise-standard infrastructure from day one. Structured logging, audit trails, transactional email, authentication, observability. All based on published engineering patterns from companies operating at scale.

kit.leojralabs.com(coming soon)

Ongoing

Continuing platform development for a logistics company — migrating legacy systems to modern cloud architecture, building out API infrastructure and observability tooling.

§ 06 — WritingComing soon

Notes on software, craft, and the decisions behind our work.

First essays coming soon.