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David Washington Consulting

Enterprise systems engineering and technical advisory for startups and scale-ups.

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  • davidwashington7us@gmail.com
  • Available for advisory roles

© 2026 David Washington Consulting. All rights reserved.

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Selected Works

System architecture blueprints & verified outcomes.

I write code and organize architectures to solve business problems. Below are selected technical case studies detailing problems, exact solutions, and outcomes.

CASE STUDY_01

10M Req/Min Cloud Server Transition

CLIENT: Striated SaaS Solutions
99.99% Uptime / Scale-to-Zero

The Challenge

A high-traffic API service experienced memory pressure and high database connection lease failures during micro-burst traffic peaks.

The Architectural Solution

Transitioned core services to edge serverless handlers, configured client connection pools, and added a write-through redis caching index layer.

Business Outcome

Eliminated server lease issues and halved database costs using automated connection termination triggers.

TECH STACK:
Next.js App RouterPostgreSQLCloud RunRedis
CASE STUDY_02

Multi-Tenant Row-Level Database Hardening

CLIENT: HyperCore Networks
Zero Leak Security Verification

The Challenge

Regulatory guidelines required absolute logical isolation for critical user metadata tables without incurring multi-cluster costs.

The Architectural Solution

Designed database schemas using strict PostgreSQL Row-Level Security policies with custom session context variables.

Business Outcome

Verified secure logical separation through strict automated compliance scans, keeping infrastructure costs constant.

TECH STACK:
Supabase DatabaseJWT Auth ProfilesPostgreSQLGo Gateway
CASE STUDY_03

Vercel Edge-Route Pipeline Optimization

CLIENT: Apex Launchlabs
-42% Global Loading Latency

The Challenge

Global readers faced latency issues loading content and media cards from standard geographic database servers.

The Architectural Solution

Implemented incremental static regeneration with global edge caching and WebP imagery compression pipelines.

Business Outcome

Achieved perfect Core Web Vitals scores globally, increasing organic web traffic metrics.

TECH STACK:
Next.js (ISR)Vercel CDN EdgeCloudflare KV Store

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