Custom Software Development in Midtown Atlanta

Midtown buyers move fast. Venture-backed SaaS, bootstrapped B2B operators, and Tech Square innovation labs all share the same constraint: they need a senior engineer who can scope, build, and ship an MVP without a six-month discovery phase or an offshore handoff. QUANT LAB runs founder-led delivery. William Beltz writes the code. There is no agency markup layer, no junior outsourcing, no project manager translating between you and engineering.

The Midtown buyer profile rewards depth in modern web infrastructure. Stripe Connect and metered billing for SaaS, OAuth/SSO and webhook fan-out for API products, and pen test reports that map to SOC 2 CC controls — those are the primitives that show up in every Series A diligence packet. We deliver them as part of the build, not as a separate scope line. Most Midtown engagements close on fixed-scope proposals with weekly Friday staging URLs and a single written acceptance milestone.

We are Macon-based — 80 minutes south on I-75 — which lets us drive up the same day for any Midtown kickoff or on-site review. Most engagements start with a video call followed by a single on-site afternoon at Tech Square, Centergy, Atlantic Station, or a Peachtree-corridor office. From there, builds run weekly: every Friday you get a deployed staging URL, written change notes, and the next-week plan. We close on fixed-scope, fixed-price proposals — no open-ended T&M billing surprises.