MasterBorn

MasterBorn is a product-focused software development shop based in Nashville, Tennessee, staffed by 100+ engineers who work exclusively with U.S.-based clients. Founded around 2019 (the site claims 7+ years building products), the company is led by Gray Skinner (CEO), Stanisław Kwiatkowski (COO), and Przemysław Królik (CTO)—all are founders themselves. They've shipped over 100 products and count 3 unicorns in their portfolio. Rather than positioning as a generic outsourcing vendor, MasterBorn frames itself as a partner for companies at various stages, from MVP to enterprise scale, with particular depth in fintech, medtech, business services, and information security.

Services and capabilities

MasterBorn bundles five core service lines: full custom software development, AI product development, UX/UI design, DevOps, and product management. Beyond building from scratch, they offer two diagnostic services—PhaseZero (described as de-risking product direction before development begins) and Tech Audit (for companies dealing with engineering delays and seeking clarity on root causes).

Their tech stack spans React, Next.js, Node.js, Express, PostgreSQL, AWS, and Vercel. On specialized tools, they use Auth0 for authentication, Playwright for testing, GitHub for version control, and Digital Ocean for hosting. For one retail-focused project, they implemented Handsontable for spreadsheet-like interfaces.

In fintech, they've built a multi-gateway payment routing system (Payments AI) that processed $250M+ in transactions and increased conversion by 12% for ClickFunnels merchants. In medtech, they've worked on comprehensive asset management platforms. For business services, they developed Portager.ai, a centralized portal for retail buyer-vendor negotiations that increased buyer efficiency by 5x and was adopted by three of the top 50 U.S. foodservice retailers within two months of launch. For infosec, they've built enterprise SaaS products serving Fortune 500 clients.

Notable work

Payments AI (ClickFunnels client): MasterBorn designed and built a custom payment processing system from the ground up. The system eliminated high transaction fees and bypassed KYC rejection bottlenecks that were blocking ClickFunnels' merchant onboarding. The result: Payments AI now handles 200+ countries, 100+ currencies, and 110+ payment types. It has processed over $250 million in transactions. For new ClickFunnels merchants using the system, conversion increased 12%. At the end of 2024, ClickFunnels requested MasterBorn build a public API for Payments AI.

Portager.ai (Conlego/retail grocers): MasterBorn built a web application to centralize buyer-vendor proposal workflows. Grocery buyers previously managed up to 90 vendors per category via email, spreadsheets, and phone calls. The platform introduced role-specific interfaces, a versioning system for proposals, and event creation with timeline support. Three of the top 50 U.S. foodservice retailers deployed it within two months. Buyer efficiency increased 5x.

Tentacle (infosec): Described as an enterprise SaaS product for Fortune 500 clients focused on information security. One founder quote: "Tentacle built enterprise grade software from scratch without a technical co-founder."

Blue Mountain (medtech): Comprehensive asset management for pharma and research labs.

How they work

MasterBorn structures engagements as full-cycle development partnerships. Their delivery model emphasizes clarity on product direction upfront—hence PhaseZero, which runs before coding begins. Project teams typically include frontend/backend developers, QA specialists, product designers, a scrum master, and a proxy product owner. Communication happens in regular, well-prepared meetings, according to client testimonials. All clients are U.S.-based, which the company highlights as enabling personalized engagement and understanding of local market dynamics. Pricing is not disclosed in their public materials.

Team and credentials

MasterBorn has 100+ team members split across functional guilds: AI Guild, Tech Team, Design Team, QA Team, Product Team, Customer Success, and People & Growth. Leadership includes Gray Skinner (CEO, background as in-house attorney, chief of staff, and COO before founding), Stanisław Kwiatkowski (COO, who notes serving 100+ international clients as an advisor and 1000+ enterprise clients as a Product Owner, including 200 from the Forbes 2000 list), and Przemysław Królik (CTO). The company publishes an NPS score of 95, positioning themselves in the "excellent" band (70–100). No ISO, SOC 2, or GDPR certifications are mentioned on their site. Their five stated core values are Clarity, Growth, Acceptance, and Efficiency.