Custom Software Development & Penetration Testing in Tampa, FL

QUANT LAB USA delivers both, from a Macon, Georgia HQ that shares Tampa's Eastern Time zone. We serve Tampa Bay remote-first, with travel into Hillsborough, Pinellas, and Pasco counties for major builds and on-site network work. Our clients there typically need the same things: Stripe-grade billing, real-time operations dashboards, pen test reports that survive procurement and SOC 2 review, and a single accountable engineer who picks up the phone.

Tampa Bay's software demand spans finance, health, and defense. The Westshore business district is the largest office market in Florida, dense with banks, insurers, and payment processors, and downtown Tampa's Water Street development has pulled fintech and professional-services tenants into a redeveloped core. USF Health, Tampa General, Moffitt Cancer Center, and BayCare anchor a health-systems economy that runs on intake, scheduling, and operations software. MacDill Air Force Base — home to US Central Command and Special Operations Command — sustains a long bench of contractors and defense-adjacent vendors. Across the bay, St. Petersburg and Clearwater add a fast-growing startup and SaaS scene. The result is a metro with broad, sophisticated software needs and rising security expectations from buyers and regulators alike.

Most Tampa shops are either bloated consultancies 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 you are pitching a Westshore bank and your security posture is part of the deal, or when a USF Health operator needs both a custom platform and a pen test report that maps to their compliance obligations.

Tampa procurement teams move fast and expect senior accountability. 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 run full Eastern Time overlap from Macon, which keeps standups and reviews on Tampa's clock. Most kickoffs are a video call followed by a single on-site afternoon — typically in Westshore, downtown, or across the bay in St. Petersburg — 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 Tampa 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 Tampa engagements close inside 4–6 weeks from kickoff to final report.