Analysis & Planning (Month 1)
- Codebase audit
- Architecture design
- Migration roadmap
§ CSE · 03B2B SaaS · real receipts
Legacy Platform Modernization
Rebuilt a 10-year-old data integration platform while maintaining 99.9% uptime for enterprise customers.
§ 01 — The Challenge
What we walked into.
Our client's monolithic Ruby application was limiting growth. They needed to modernize without disrupting service for 200+ enterprise customers processing 1B+ records daily.
- 0110-year-old monolithic codebase!
- 02Unable to scale beyond 1B records/day!
- 0345-minute deployment process!
- 04Growing technical debt blocking features!
§ 02 — The Approach
How we shipped it.
We executed a gradual migration strategy, moving to microservices while maintaining full backward compatibility.
Core Services (Months 2-6)
- Extract critical services
- Build new data pipeline
- Implement service mesh
Migration & Optimization (Months 7-9)
- Gradual customer migration
- Performance tuning
- Team knowledge transfer
§ 03 — The Results
What it shipped.
The platform now processes 10B+ records daily with 5-minute deployments and 99.99% uptime.
“Drexus managed the impossible—rebuilding our plane while flying it. Zero downtime, zero data loss, and our customers actually noticed the performance improvements.”
Alex K.CTO · [REDACTED]
VERIFIED10B/day
Processing Capacity
5 min
Deployment Time
99.99%
Uptime
3x faster
Feature Velocity
§ 04 — Technology Stack
The stack, on the record.
frontend
ReactTypeScriptMaterial-UI
backend
GoPythonPostgreSQLKafka
infrastructure
KubernetesIstioPrometheus
data
Apache BeamBigQueryRedis
§ 05 — Key Outcomes
Receipts, filed.
10x increase in processing capacity
Reduced deployment time by 89%
Achieved 99.99% uptime SLA
Enabled 3x faster feature delivery
WANT · YOUR · OWN · RECEIPT
Hire us. Ship the work.
Every case study here started with a 30-minute discovery call. Tell us where you are; we'll point at the playbook that gets you to next week.
AVG RESPONSE 2H · BUSINESS HOURS · CET