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Architect-level teams shipping production-grade native, React Native, and Next.js platforms for fintech, healthcare, and other regulated industries — no juniors learning on your timeline.

Trusted by
Fortune 500 convenience retailTop-20 global pharma platformFinancial services in 14 European marketsEnterprise fleet management — 600K+ customers
Industries

Where we go deep

We take engagements where architectural maturity, compliance, and scale are non-negotiable — not demo-day scale, real-world scale.

Fintech & Financial Services

Payments, lending, and banking platforms where a bug is a regulatory event, not a soft landing.

  • PSD2 / SCA & PCI DSS compliant
  • Payments across 14 European markets
  • Biometric auth & fraud controls

Retail & Commerce

Loyalty, payments, and in-store hardware integrations at Fortune 500 scale.

  • 500K+ monthly active users
  • POS & fuel-pump hardware integration
  • Omnichannel across 8+ countries

Healthcare & Pharma

Regulated communication and data platforms for global healthcare organizations.

  • Top-20 global pharma platform
  • HCP engagement across 40+ markets
  • Data residency & compliance

Enterprise & B2B SaaS

Multi-tenant platforms and operational tools engineered to scale past Series B.

  • Fleet platform — 600K+ customers
  • Multi-tenant architecture
  • Real-time data at scale
Why Prime Stack

Senior engineering, without the learning curve

You're not hiring capacity. You're hiring engineers who have already solved the exact problem in front of you.

Senior-only teams

Every engineer is an architect who has shipped production systems in your domain — no juniors learning on your timeline.

Production-grade, not prototypes

Architecture decision records, automated test suites, CI/CD, and runbooks ship with every engagement. You get a system you can operate.

Built for regulated industries

PSD2/SCA, GDPR, PCI DSS, and pharma communication compliance designed in from the first commit — not retrofitted before an audit.

Cross-domain pattern recognition

Mobile, web, and backend across fintech, retail, pharma, and SaaS — we recognize the failure modes single-vertical specialists miss.

Results

Outcomes, not output

A sample of what our engagements have delivered in production.

500K+
Monthly active users
Fortune 500 retail loyalty platform
600K+
Fleet customers served
Enterprise B2B platform
40+
Markets launched
Top-20 global pharma platform
94%
Fewer app crashes
Native mobile platform rebuild
340%
Organic traffic growth
Technical SEO engagement, 90 days
$12M
Series A raised
Fractional CTO engagement
How We Work

Our Process

  1. 01

    Discovery

    We analyze your architecture, constraints, and goals.

  2. 02

    Architecture

    We design the system before writing a single line of code.

  3. 03

    Engineering

    Senior engineers build your platform with production-grade quality.

  4. 04

    Delivery

    We ship, monitor, and hand off with full documentation.

  5. 05

    Support

    Ongoing maintenance and optimization as your product scales.

Engagement Models

Ways to work with us

Fixed-scope, embedded, or advisory — structured to your stage and constraints. No open-ended billing.

Fixed-Scope Project

A defined deliverable, milestone-based billing, and a hard deadline.

Timeline
8–20 weeks
Best for
MVP-to-v1 builds & platform launches
  • Architecture through deployment
  • Two-week sprints with demos
  • Full handoff documentation
Most popular

Embedded Team

2–4 senior engineers operating as an extension of your team.

Timeline
3–12 month retainer
Best for
Scaling teams & platform modernization
  • Senior engineers in your workflow
  • Incremental migration & delivery
  • Monthly cadence, flexible scope

Architectural Audit

Investor-grade technical due diligence with a remediation roadmap.

Timeline
2–6 weeks
Best for
Investors & pre-fundraise founders
  • 100–250 page deliverable
  • Risk-prioritized findings
  • 30/60/90-day action plan

Fractional CTO

Experienced engineering leadership without the full-time hire.

Timeline
3-month minimum
Best for
Late-seed & Series A startups
  • Technical strategy & roadmap
  • Hiring & process design
  • Investor-readiness & due diligence
FAQ

Questions, answered

The things prospective clients ask us most often.

Tell us about your project. We respond within one business day.