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Engineering practice

Software wehave to live with

The same operational bias we bring to a floor deployment, applied to code. Typed end to end, instrumented, and deployed on infrastructure we can debug at two in the morning — because on our own products, the person getting paged is us.

2
Live in production
1
In development
In-house
Design & build
Owned
We operate them
Next.jsTypeScriptPostgresSolidityVercel
Plate 01Software we operate

Three products
of our own

The clearest way to judge an engineering firm is what it ships when nobody is paying it to. Two are live and in production; the third is still being built.

  • 01Live

    Converge

    Scheduling & Coordination
    convergemeetings.com

    Share one link, everyone marks when they're free, and the best slot rises to the top.

    Converge solves the coordination problem that email was never built for: finding one hour that works across a dozen calendars and four time zones. Guests open a link, paint the times they are free, and a live heat map resolves the group's best slot without anyone tallying responses by hand. Time zones convert automatically, so nobody does arithmetic to answer a scheduling question.

    • Guest access with no account required
    • Live availability heat map that ranks the best slot
    • Automatic time zone conversion for every participant
    • Google Calendar sync and recurring meetings
    • In-meeting chat and AI-composed invites
    • Weather forecast for in-person meetups
    Next.jsTypeScriptPostgresReal-time sync
  • 02In progress

    Apsis

    Consumer Fintech

    In active development — not yet open to the public

    apsisapp.com

    Lock money into your own vault. Nobody — including us — can open it early. On the date you set, it lands back in your bank, with interest.

    Every savings product asks you to trust a policy. Apsis replaces the policy with a timelock: USDC is held non-custodially on Base under a contract that will not release early for anyone, including the people who wrote it. A ten-minute cooling-off window covers genuine mistakes, and after that the date is the date. Balances and fees are verifiable on-chain, so the guarantee is something you can check rather than something you are told.

    • Non-custodial USDC locks settled on Base
    • Cryptographic timelock with no early-release path
    • Ten-minute penalty-free cooling-off window
    • Interest accrues for the full lock term
    • On-chain verification of balances and fees
    • No minimum lock amount
    Next.jsSolidityBaseViem
  • 03Live

    Collector Audit

    Consumer Legal Tech
    collectoraudit.com

    Turn scattered call notes and screenshots into a court-ready record.

    Consumer protection law only helps people who can prove what happened. Collector Audit gives that leverage back: every call, voicemail, text, and letter is logged with a timestamp into a tamper-evident vault, and built-in checks flag contacts that appear to breach the Fair Debt Collection Practices Act. When it is time to act, the workspace produces FDCPA-aligned letters, sends them by tracked certified mail, and exports a structured PDF for an attorney or a regulator.

    • Timestamped log for calls, texts, emails, and letters
    • Automatic FDCPA violation flagging
    • Debt validation, dispute, and cease-contact templates
    • Certified mail dispatch with USPS tracking
    • Tamper-evident evidence vault
    • Court-ready PDF export for counsel
    Next.jsTypeScriptPostgresDocument pipeline
Plate 02How we engage

Three ways
this usually starts

Each one begins with a scoping conversation and a fixed first milestone. No open-ended retainer before either of us knows what we are building.

01
Product build
A full application from discovery to launch, scoped into milestones with a fixed first one — so you can judge the work before committing to the whole thing. Good fit for founders and teams with a defined product to ship.
02
Internal tooling
The dashboard, importer, or workflow your operation currently runs on a spreadsheet and one person's memory. Usually the highest-leverage software a business can buy, and the least glamorous.
03
Integration work
Systems that should talk to each other and do not: payment providers, calendars, CRMs, document pipelines, and the glue between them. Built to fail loudly rather than silently.
DiscoveryFixed first milestoneTyped end to endWe operate what we ship
Next step

Have something
that needs building?

Tell us what the software has to do and who it is for. We come back with a scope, a first milestone, and a number.

Or call and speak to someone who does the work(347) 262-9435inquiries@jcitsystems.com