I help founders and teams build reliable, server-authoritative backend systems for mobile and web apps — with a focus on subscriptions, entitlements, and long-term maintainability.
Core Services
Subscription & Entitlement Systems
- Server-authoritative subscription logic
- Entitlement-based access control (active / expired / renewable)
- Architecture designed for Apple IAP, web, and Android
- Clean separation between backend authority and client apps
Used in live apps with active subscribers.
Backend APIs & Infrastructure
- REST / JSON API design and implementation
- Authentication integration (JWT, session-based, external identity)
- Database schema and state modeling
- Scalable, production-ready backend architecture
AWS Deployment & CI/CD
- AWS infrastructure setup (EC2, RDS, S3, CloudFront)
- Environment separation (dev / staging / production)
- CI/CD pipelines using GitHub Actions
- Automated builds and deployments
Mobile App CI/CD (iOS & Android)
- TestFlight CI/CD setup for iOS
- Play Store build & release automation
- Code signing, provisioning, and release workflows
Real-Time Features
- Real-time chat and messaging systems
- WebSocket or event-driven architectures
- Presence, delivery, and state synchronization
Payments & Commerce
- Stripe integration for web payments
- Subscription and one-time payment flows
- E-commerce backend development
- Secure payment lifecycle handling
Mobile App Development (Supporting)
- iOS and Android app development
- Client-side entitlement sync (non-authoritative)
- Subscription recovery and sync flows
How I Work
I work with international clients across time zones and prefer clear written communication, async updates, and well-documented deliverables.
I focus on clear scope, backend-first architecture, and fixed deliverables. Most engagements start with a focused implementation or architecture phase, followed by iterative improvements.
Typical projects range from short architecture validations to multi-week backend implementations. Pricing depends on scope and complexity.
Working with International Clients
- Comfortable working across US, EU, and other time zones
- Clear milestones and fixed-scope engagements
- Written updates and documentation included
Good Fit / Not a Fit
Good fit if you are:
- Building a SaaS, AI app, or subscription-based product
- Looking for a backend source of truth
- Planning for scale and long-term maintainability
Not a fit if you are:
- Looking for quick client-side-only implementations
- Expecting undefined or open-ended scope
Work Inquiries
If you’re building something serious and want the backend done right, feel free to reach out with a short description of your project.