Custom Software
Bespoke platforms, internal tools, and APIs built to fit your workflows — not the other way around.
Software Engineering Studio · Est. 2020
Custom software, engineered to last.
Lazul designs, builds, and ships web and iOS applications, automation, and AI/ML systems for teams that sweat the details.
Trusted by teams building the future
Northwind
Vertex Labs
Cobalt
Meridian
Heliodex
Aperture
Quantum 9
Solaris
40+
Clients served
150+
Projects delivered
2M+
Lines of code shipped
2020
Building since
What we do
Full-stack engineering, end to end.
From a napkin sketch to production and beyond — one team that designs, builds, and maintains the software your business runs on.
Web Applications
Fast, accessible, production-grade web apps on modern stacks — with clean, maintainable code you own.
iOS Applications
Native iOS apps engineered for performance and polish — from concept and design through App Store launch.
Automation
We remove manual toil — pipelines, integrations, and workflows that quietly run themselves.
AI / ML Implementation
Practical machine learning and LLM features, integrated into real products that actually ship.
Not sure where to start?
Tell us what you're building. We'll help you scope it and map the fastest path to shipping.
Let's talk →
Selected work
Case studies that shipped.
A few recent builds — from platform rebuilds to AI features and native apps.
Rebuilding a logistics platform
Replaced a brittle legacy system with a modern, observable platform the ops team actually trusts.
10×
faster deploys
AI search across the knowledge base
Retrieval-augmented search over thousands of internal documents, with guardrails and evals.
92%
answer accuracy
Native iOS for field teams
An offline-first field-service app that keeps working where connectivity doesn't.
4.9★
App Store rating
Automating the billing pipeline
End-to-end automation that removed manual reconciliation and closed the books faster.
30 hrs
saved per week
Real-time analytics dashboard
A streaming data pipeline feeding sub-second dashboards for a global operations team.
<100ms
query latency
Fintech onboarding, reimagined
A secure, compliant onboarding flow that cut drop-off and doubled completed sign-ups.
2×
conversion rate
Why Lazul
Senior engineers. Real ownership.
No hand-offs to junior teams, no black boxes. You work directly with the people writing the code — and you keep every line of it.
- Senior engineers on every project
- Clean, documented code you fully own
- Shipping in weeks, not quarters
- Still here long after go-live
Our stack
Modern tools, chosen for the job.
We're pragmatic about technology — proven where it counts, cutting-edge where it pays off. A representative slice of what we reach for:
Frontend
Interfaces that are fast, accessible, and a pleasure to use.
- Component-driven architecture with end-to-end type safety
- Accessibility and Core Web Vitals built in, not bolted on
- Design systems that stay consistent as products grow
ReactNext.jsTypeScript
VueTailwind CSSEleventy
Backend
Reliable services and APIs that scale with you.
- Well-documented REST and GraphQL APIs
- Data models designed for correctness and performance
- Observability and testing from day one
Node.jsPythonGo
PostgreSQLGraphQLRedis
Mobile
Native iOS, engineered for performance and polish.
- SwiftUI-first, with UIKit where it earns its place
- Offline-ready data and smooth 60fps interfaces
- Managed TestFlight and App Store release pipelines
SwiftSwiftUICombine
Core DataXCTestTestFlight
AI & Data
Practical ML and LLM features wired into real products.
- Retrieval-augmented generation over your own data
- Evaluation and guardrails so features stay reliable
- Pragmatic models — hosted or self-run, whichever fits
PyTorchOpenAIAnthropic
LangChainpgvectorHugging Face
Cloud & DevOps
Ship confidently with automated, repeatable delivery.
- Infrastructure as code — reproducible every time
- CI/CD with automated tests and preview deploys
- Cost-aware, secure-by-default cloud architecture
AWSDockerTerraform
GitHub ActionsCloudflareVercel
Under the hood
Systems we build, visualized.
Every layer wired to a resilient core — data flowing between clients, services, and stores in real time.
How we work
A tight loop, from idea to impact.
-
01
Discover
We dig into the problem, the users, and the constraints to define what's worth building.
-
02
Design
Architecture and interfaces, prototyped early so we validate before we commit.
-
03
Build
Tested, reviewed, production-grade code shipped in short, visible iterations.
-
04
Ship & scale
We launch, measure, and keep improving — and we're still here after go-live.
Have something to build?
Tell us about your project — we'll get back within one business day.