Custom Software Development & Penetration Testing in Memphis, TN

QUANT LAB USA delivers both, from a Macon, Georgia HQ that keeps a one-hour offset to Memphis's Central Time and a full working-day overlap. We serve Memphis remote-first, with travel into Shelby and DeSoto counties for major builds and on-site network work. Our clients there typically need the same things: logistics dashboards that unify legacy systems, integration layers across WMS and TMS feeds, pen test reports that survive a vendor review, and a single accountable engineer who picks up the phone.

Memphis runs on movement. The FedEx world hub anchors the largest cargo operation in the hemisphere, and the surrounding distribution, warehousing, and third-party-logistics base — feeding the river port, five Class I railroads, and the interstate crossroads — generates relentless demand for dispatch, freight-tracking, last-mile, and inventory software. The medical economy is the other pillar: the Memphis medical district, St. Jude Children's Research Hospital, and regional hospital systems sustain a large healthcare base that needs intake, scheduling, and operations tooling. Add consumer-goods and distribution headquarters across Germantown and Collierville, and you have a metro whose software needs are dominated by logistics complexity and healthcare compliance.

Most Memphis shops are either large logistics-IT integrators or solo freelancers. We sit in the middle: founder-led delivery with enterprise-grade engineering practices and in-house offensive security. No offshore handoff and no junior outsourcing — William Beltz scopes, builds, and ships. That matters when a distribution operator needs a real-time dashboard that does not buckle at peak volume, or when a medical-district operator needs both a HIPAA-aware platform and a pen test report that maps to their compliance obligations.

Memphis buyers want senior accountability without consultancy overhead. Our model delivers exactly that: every engagement is scoped, built, and shipped by the founder, on a fixed-scope and fixed-price proposal with a written acceptance milestone — not open-ended time-and-materials billing. Our pen testing is in-house capability, not a subcontracted line item: Active Directory abuse paths, lateral movement, ADCS certificate abuse, Kerberoasting, wireless attacks, and web application exploitation, with every finding mapped to a MITRE ATT&CK technique ID. And every line of software we ship is reviewed against the same threat models we use on offensive engagements.

We work from Macon on a one-hour offset to Memphis's Central Time, which still leaves a full working-day overlap for standups and reviews. Most kickoffs are a video call followed by a single on-site afternoon — typically downtown, in the medical district, or out in Germantown and Collierville — to walk the workflow we are replacing. From there, build cycles run weekly: every Friday you get a deployed staging URL, written notes on what changed, and the next-week plan. Pen testing engagements run from secure remote infrastructure with strict source-IP allowlisting and authenticated VPN tunnels for internal scope, and we travel to Memphis for sensitive scoping and for internal tests requiring on-site network access. Reports ship in two formats: a technical deliverable with reproduction steps for the security team, and a board-readable executive summary with a prioritized remediation roadmap. Most Memphis engagements close inside 4–6 weeks from kickoff to final report.