Scaling Recharge's subscription management platform
full-stack developers on the project
weeks to production-ready launch
months of active development
ASCENDED ABOVE THE CLOUDS
Matt// startup founder
The experience with Lemon.io has been fantastic. The interview process has been good, the caliber of people – excellent and integration has been very smooth.
The Challenge
Recharge needed to rebuild their subscription billing engine to handle 10x more merchants. Their monolithic architecture was buckling under load, and new feature development had slowed to a crawl.
They needed experienced engineers who could refactor without downtime and ship new billing features simultaneously.
What We Built
Microservices Migration
We decomposed the monolith into 12 focused microservices:
- Billing Service — Stripe integration, invoice generation, proration
- Subscription Engine — plan management, upgrades/downgrades, trials
- Webhook Orchestrator — reliable event processing with retry logic
- Analytics Service — MRR, churn, LTV calculations in real-time
Merchant Dashboard
A Next.js dashboard giving merchants full control:
- Revenue analytics with cohort analysis and forecasting
- Subscription lifecycle management — bulk actions, filters, exports
- Custom billing rules — usage-based, tiered, and hybrid pricing models
- Dunning management — automated retry flows reducing involuntary churn by 40%
API Gateway
Built a rate-limited, authenticated API gateway serving 50K+ requests/minute with sub-100ms p99 latency.
Tech Stack
- Frontend: Next.js, React, TypeScript, Recharts
- Backend: Node.js, NestJS, gRPC for inter-service communication
- Database: PostgreSQL, Redis for caching and sessions
- Infrastructure: AWS EKS (Kubernetes), Terraform, DataDog
- Payments: Stripe Connect, custom billing engine
Results
| Metric | Before | After |
|---|---|---|
| API latency (p99) | 800ms | 92ms |
| Deploy frequency | Weekly | Multiple daily |
| Merchant onboarding | 3 days | 15 minutes |
| System uptime | 99.5% | 99.99% |
The rebuilt platform now powers $2M+ in monthly recurring revenue across hundreds of merchants.
THE WIZARDRY THAT TURNS
IDEAS INTO SUCCESS
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AI / Machine Learning
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Mobile App
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3 devs deployed
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EXCEPTIONAL DEVS WHO DELIVER RESULTS
Jan K
SENIOR FULL-STACK WEB DEVELOPER
6 YEARS OF EXPERIENCE
Anonyo is an active OS contributor with 9+ years of back-end experience. He knows how to build new features from scratch, starting from an idea to the full implementation.
Jan K
SENIOR FULL-STACK WEB DEVELOPER
6 YEARS OF EXPERIENCE
Anonyo is an active OS contributor with 9+ years of back-end experience. He knows how to build new features from scratch, starting from an idea to the full implementation.
Jan K
SENIOR FULL-STACK WEB DEVELOPER
6 YEARS OF EXPERIENCE
Anonyo is an active OS contributor with 9+ years of back-end experience. He knows how to build new features from scratch, starting from an idea to the full implementation.
Jan K
SENIOR FULL-STACK WEB DEVELOPER
6 YEARS OF EXPERIENCE
Anonyo is an active OS contributor with 9+ years of back-end experience. He knows how to build new features from scratch, starting from an idea to the full implementation.
Jan K
SENIOR FULL-STACK WEB DEVELOPER
6 YEARS OF EXPERIENCE
Anonyo is an active OS contributor with 9+ years of back-end experience. He knows how to build new features from scratch, starting from an idea to the full implementation.
After CV and LinkedIn
check, we cut devs who
offer an inglorious
portfolio and lack
outstanding experience
All the survivors undergo the screening call (soft skills and
language proficiency
check)
Ready to ship?
Book a 30-minute call.
We'll discuss your idea, share a fixed-price quote, and map out a timeline. No sales pitch. No BS.
