EPHREM

Web3 Pivot · Backend Focus

Backend/Full-Stack Dev Pivoting to Web3 | 6+ Yrs Building Scalable Systems

I architect resilient Node.js microservices, serverless pipelines, and automated liquidity engines for crypto exchanges and DeFi teams.

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10x
Faster aggregation
$10M
Valuation reached
99%
Data accuracy
5x
Engagement lift
60%
Faster media
24/7
Liquidity automation
Ephrem Demelash portrait

Web3 Case Studies

Impact you can measure

High-performance systems for exchanges, affiliate intelligence, and trusted marketplaces.

BoxExchanger Liquidity Automation

Case Study

Crypto exchange core services plus automated Uniswap V3 liquidity rebalancing built with Node.js, TypeScript, and AWS Lambda.

  • • 30% tighter spreads across ETH/USDC pools
  • • 24/7 autonomous tick rebalancing with custom risk bands
  • • Live Grafana visibility for ROI and pool depth
Node.jsTypeScriptUniswap V3 SDKAWS LambdaDynamoDB
CompanyCase Study

AffCollect Intelligence Platform

Case Study

Aggregated high-volume affiliate revenue data via a microservice mesh with concurrency, message queues, and advanced caching.

  • • 10x faster aggregation with MQ fan-out
  • • 90% boost in analyst efficiency
  • • $10M product valuation achieved
Node.jsTypeScriptGraphQLKafkaMongoDB
ProductTestimonial

Recent Roles

Feb 2023 – Present

Backend Developer

BoxExchanger

  • Reduced manual LP management by 95% via custom automation
  • Added live ROI dashboards with telemetry into Grafana/Prometheus

Apr 2021 – Feb 2023

Full Stack Developer

Addis Software

  • Rebuilt AffCollect into microservices for 90% operations efficiency
  • Integrated Google Analytics + 1Password SDK contributions

Mar 2020 – Apr 2021

Backend Developer

Yellow Card Financial

  • Implemented microservices in Node.js/TypeScript with AWS DynamoDB
  • Improved onboarding throughput by 35% with Cognito automation

Latest Writings

Blog

Read all →

Cloudflare • h3 • TypeScript • Serverless • Tutorial

Getting Started with Cloudflare Workers and h3

Spin up a typed API on Cloudflare Workers using the h3 framework, Wrangler, and a few minutes of setup.

Nov 27, 2025 · 5 min read

Web3 • Serverless • Node.js

Automating Uniswap V3 Liquidity with Node.js Lambda

Architecting a resilient rebalancer using the Uniswap V3 SDK, AWS Lambda, and CloudWatch Events.

Jan 12, 2025 · 1 min read

Contact

Ready to ship high-throughput systems?

Drop a note about the problem you are solving —backend modernization, crypto apps or telegram bots. I reply within 24 hours.

Email: contact@ephrem.dev

Phone: +251-912-317701

GitHub: github.com/ephremdeme