Rapida · Delivery Service Platform
A high-performance delivery platform with real-time tracking and immersive 3D visualizations.
Our NYC SaaS services span MVP builds for Techstars NYC and Entrepreneurs Roundtable Accelerator cohorts, platform rewrites for teams inheriting legacy Rails or Django monoliths the way Datadog and Etsy did, and enterprise extensions for firms selling upmarket alongside MongoDB Atlas and Sprinklr. We engineer multi-tenant architectures with row-level security, schema-per-tenant for regulated buyers, and tenant-aware observability in Datadog or New Relic, build billing on Stripe NYC with native USD pricing, sales-tax handling for the 8.875 percent NYC combined rate plus 45 other states post-Wayfair, and metered usage events wired into ARR-grade revenue recognition. SaaS metrics (ARR, NDR, GRR, CAC payback, magic number, LTV/CAC, Rule of 40) are instrumented from week one because Insight, Tiger, USV, and FirstMark partners will ask for the cohort waterfall on the second meeting.
Our NYC SaaS process starts with a two-week discovery that maps your ICP, pricing tiers, ARR growth model, and regulatory surface before a single line of code is written. We run two-week sprints with Monday planning at 9:30 AM Eastern, Thursday demos at 2 PM ET, and Friday retros, using Linear for tickets and Notion for the product spec that doubles as the Section 174 R&E technical narrative. Releases go through an AWS us-east-1 staging environment with us-east-2 standby for DR, behind feature flags via LaunchDarkly or Flagsmith, with Sentry and Datadog wired for tenant-scoped error tracking. NYDFS Part 500 workshops run in week one for any covered-entity buyer, SHIELD Act inventory in week two, and a Local Law 144 scoping session if any feature touches hiring. Your NYC product manager owns the roadmap, our staff engineer owns the architecture, and we publish burn, velocity, and ARR-cohort burn weekly.
We validate your SaaS concept, define the MVP feature set, design the data model, and plan the technical architecture for scalable growth.
Design the user interface, plan multi-tenant data architecture, define API contracts, and create the billing and onboarding flows.
Build the SaaS platform with authentication, multi-tenancy, billing integration, core features, admin panel, and customer-facing dashboards.
Comprehensive testing including multi-tenant isolation verification, security penetration testing, load testing, and billing edge case validation.
Production deployment, monitoring setup, onboarding flow optimization, and growth infrastructure including analytics, feature flags, and A/B testing.
NYC SaaS teams ask for stacks that hire well on LinkedIn, scale past Series B without a rewrite, and pass a Datadog or MongoDB engineering bar review. We default to Next.js or Remix on the frontend, Node.js with NestJS or Python with FastAPI on the backend, PostgreSQL on AWS RDS in us-east-1 with read replicas and us-east-2 for DR, and Redis ElastiCache for sessions and rate limiting. For data warehousing we run Snowflake or BigQuery with Fivetran and dbt, mirroring the stack Etsy, Peloton, and Datadog analytics teams standardised on. Infrastructure is Terraform managed and deployed to AWS or Vercel, with Cloudflare for WAF and CDN. We layer WorkOS, Auth0, or Clerk for SAML and SCIM SSO, Stripe Billing with TaxJar or Anrok for sales tax, and Amplitude or PostHog for product analytics.
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Selected Projects
Recent platforms, apps and dashboards we designed, built and shipped.
A high-performance delivery platform with real-time tracking and immersive 3D visualizations.
Enterprise-grade security dashboard with real-time threat monitoring and analytics.
A curated marketplace connecting artists with collectors worldwide.
Cross-platform mobile experience with live delivery tracking and notifications.
Scalable microservices architecture handling millions of security events daily.
Comprehensive content management system with advanced analytics and reporting.
Our Work
200+ products shipped across fintech, healthcare, e-commerce, and SaaS — built to scale, designed to convert.


