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Custom software development company
We design and build custom software that runs in production — platforms, AI products, and the systems a business runs on. Built end to end by a senior team that owns delivery.
Senior engineers who own architecture to delivery
AI at the core, not bolted on
You own everything — code, data, roadmap
What we build
Products people use every day — not a prototype that stops at the demo.
Multi-user systems with the auth, roles, and workflows the operation needs.
AI in the product and in how we build it, reviewed by a principal engineer.
The tools a team uses to run the business, not a generic off-the-shelf fit.
Pipelines, APIs, and the connections between systems you already rely on.
Make what you have reliable enough to build on, without a forced rewrite.
How AI fits our work
Our senior engineers direct AI that writes code underneath them — and they review and own every line that ships. AI accelerates the work; it never decides what's right.
A real starting point on day one
AI turns your vision into a structured SRS, wireframes, and a first working product direction in hours, not weeks — so you're reacting to something real, not a blank page.
The repetitive work, automated
Boilerplate, tests, and documentation are AI-generated and engineer-reviewed — shorter cycles and fewer early bugs.
A principal engineer owns the result
Every change is reviewed in context before it ships. You're never handed raw AI output.
You own what it produces
The SRS, the designs, the code, the docs — all yours.
The result: delivery timelines cut by roughly 40–50%, and fewer bugs in early releases — without cutting corners.
EV charging · US
Bookings, payments, access control, and live monitoring, with OCPP so multiple charger vendors work without hardware lock-in.
Energy data · US
Pipelines that ingest well, production, land, and regulatory data, and add new states without rebuilding the system.
AI product
A compatibility engine built around values, personality, and behavior, shipped with a senior team and AI in the loop.
Operational software
Files, contracts, billing, resource hours, and client status in one system a US studio actually runs on.
How we work with you
New production software end to end, from first architecture to launch.
Make what's slow, breaking, or fragile reliable enough to build on again.
Grow and run the system with a senior team that stays on it.
How we start
A senior engineer, often our CTO, finds the real constraint and what's worth building, fixing, or leaving alone.
One clear outcome. Your stack, vendors, and team stay.
The code, the data, the roadmap. No lock-in.
Industries
Pricing
Scope, team, and terms in writing before anything starts. You pay for completed work.
Scoped engagement
In writing first
We define the piece, the team, and the terms before engineering starts. Milestone-based — you pay for completed work.
Best for: A defined outcome, not an open-ended retainer
Talk to an engineerWhy 6sense HQ
Real systems running today — ChargeOnSite, Peak ETL, and Jeter. 80+ products shipped since 2017.
30+ full-time engineers, PMs, QAs, and designers. Architecture led by a fractional CTO. 20+ production tech stacks.
Trusted by names like Greystar and Cushman & Wakefield. 99% client satisfaction. 5.0 on Clutch.
You own the code, data, and IP — assigned under US jurisdiction, no lock-in. NDA before any discussion. Security on every engagement. Milestone-based — you pay for completed work.
Free 30-minute technical review, often with our CTO. No obligation.
