Cutting 42% cloud cost for Northwind without losing throughput
Challenge
Northwind ran a fintech platform on over-provisioned infrastructure inherited from a hyper-growth phase. Cloud cost had risen 30% year-over-year while p95 latency crept past 380ms, hurting the trading experience.
The in-house team had attempted optimization but was stretched thin by the product roadmap and lacked deep SRE expertise.
Approach
We opened with a two-week discovery: mapping cost by service, measuring real load, and identifying five cost hotspots. A small squad of a Tech Lead and an SRE embedded into Northwind’s sprint cadence, working inside their repos and cloud accounts.
Solution
We re-architected along three pillars:
- Right-sized compute and applied savings plans
- Moved batch workloads to spot instances
- Tuned DB queries and added tiered caching
Every change shipped through CI/CD with canary releases and automatic rollback.
Results
“BLV Digital rebuilt our platform in months. We cut infrastructure costs substantially and our p95 latency nearly halved. They feel like our own team, not a vendor.”
Tech stack
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