Enterprise software engineering
Software that holds its shape.
We build the software foundations companies run on: cross-platform applications, end-to-end delivery, and open-source tools that stay maintainable for years.
Service lines
03
OSS projects
04
Reply SLA
2days
01 / Services
Three ways to work with us
Pick one line, or hand us the whole lifecycle.
Cross-platform software
Desktop and mobile applications built from one coherent core, without four codebases drifting apart.
Service details 02End-to-end solutions
Whole problems, not tickets: scope, architecture, integration, deployment and the documents your team inherits.
Service details 03Open source R&D
Our own tools maintained in public, and help opening up yours properly: licenses, governance, releases.
Service details02 / Capabilities
A stack picked for reliability, not novelty
We prefer well-understood technology and spend the effort where it shows: correctness, performance, clean seams between systems.
Backend & systems
Rust, Go and Python services sized to the problem: APIs, queues, schedulers, kept deliberately small.
GIS & spatial data
PostGIS, GeoServer, tile pipelines, web maps. Coordinate systems are treated as correctness issues, not afterthoughts.
Web engineering
TypeScript front-ends with a static-first architecture: fast by default, accessible, light on the network.
Mobile
Native iOS and Android, or cross-platform when it genuinely fits. Decided per product, not per fashion.
Data engineering
Pipelines, ETL and observability that make data trustworthy before anyone builds a dashboard on top.
Delivery & operations
CI/CD, containers, reproducible builds. Environment drift stops at the development machine, and every release ships with a changelog and a rollback path.
03 / Open source
Built in the open
The projects we maintain in public. Everything ships with documentation, tests and a changelog.
More on GitHubA direct WebSocket client for your OpenClaw gateway. No backend, no message limits, one codebase for every platform.
A release control plane for Docker projects: onboarding, image packaging, version publishing and remote deploy tracking in one console.
A lightweight frontend LLM SDK: register providers, pick a model, test access, then reuse it in code. Ships with an embeddable config UI.
A local-first workbench for reading a codebase: it indexes the repository into a graph, links code to git history and design decisions, then answers from that evidence.
04 / About
Less software, fewer surprises
LeanVault starts from a plain observation: most enterprise systems are not too simple, they are too much. We build the other way. Small surfaces, explicit contracts, code a new engineer can read on day one.
Read our story05 / Contact
Have a system to build?
Tell us what you are trying to run. You will get a straight assessment: scope, risks, and whether we are the right team for it.