Yousif Abdulkarim

After seeing teams constantly rebuild the same core capabilities across different frameworks and runtimes, I founded eridu-tech to provide a unified backend foundation. Owning product direction, architecture, DX, and delivery, I’ve grown it to serve 600+ monthly developers.

• Founded and maintain eridu-tech, an open-source composable backend foundation toolkit for TypeScript, now used by 600+ monthly developers.
• Shipped 30K+ lines of production TypeScript in a 50k-line codebase, backed by 4,640+ integration and conformance tests.
• Replaced repeated infrastructure code with reusable caching, rate limiting, distributed locking, circuit breakers, and event-bus components behind stable adapter contracts.
• Designed an adapter-first architecture so the same components run on Node.js, Bun, Deno, serverless, and edge runtimes.
• Automated CI/CD with GitHub Actions workflows covering Docker tests, linting/code-quality checks, formatting checks, package deployment, and API & website documentation.
• Improved adoption by owning API design, documentation, and developer guides alongside the implementation.

• TypeScript
• Node.js
• PostgreSQL
• MongoDB
• MySQL
• Redis
• SQLite
• Docker
• GitHub Actions
• Adapter Pattern
• Modular Monoliths

• 600+ monthly developers
• 30K+ lines of TypeScript shipped
• 4,640+ integration & conformance tests
• 20 maintained backend components
• 45 maintained adapters
• 93 releases

A manual email-based event-registration workflow was causing lost information and booking conflicts. I took ownership of product and technical delivery and led the AMS Portal from requirements to deployment, turning the process into a centralized booking and registration system now used by 50 exhibitors.

• Turned unclear business needs into requirements, priorities, and shipped features, keeping delivery moving without dedicated QA or project-management support.
• Replaced the manual email workflow with the AMS Portal, giving the summit a centralized system for registration and eliminating the data loss and booking conflicts caused by the old process.
• Digitized booth bookings, booth asset purchases, marketing asset purchases, and speaker submissions, replacing scattered email coordination with a single unified workflow.
• Reduced manual operational work by adding automated invoicing, order tracking, and live inventory management.
• Built the platform as a modular monolith with Next.js, Payload CMS, TanStack Start, and PostgreSQL, then deployed and operated it on a VPS with Docker, Nginx, and SSH.

• TypeScript
• React
• Next.js
• Tailwind CSS
• Payload CMS
• TanStack Start
• TanStack Query
• PostgreSQL
• Docker
• Nginx
• SSH
• VPS

• 59 exhibitors onboarded
• 117 invoice and contract documents generated
• 55 orders processed
• 20 invoices issued
• 17 of 21 speaker submissions received
• 34 booth assets available for purchase

Client storefronts needed focused improvements and CRM-connected experiences within a small three-person agency team. I independently owned features from implementation through delivery across Shopify storefronts and client integrations.

• Owned client-facing features end to end within a three-person team, reducing handoffs between requirements, implementation, and delivery.
• Improved storefront browsing by adding Liquid-based pagination and contact filtering.
• Engineered an in-app chat feature for a custom client CRM, enabling real-time communication directly within the platform.
• Delivered storefront functionality across Liquid, JavaScript, TypeScript, React, Remix, and Shopify while working within client-specific constraints.

• Liquid
• JavaScript
• TypeScript
• React
• Remix
• Shopify
• CSS

• Replaced third-party messaging with a custom React chat app in a custom CRM.
• Kept chat history and messaging in one workspace.

The client needed a commerce platform tailored to its requirements rather than a standard storefront. I owned the full delivery of a custom headless e-commerce system, from requirements and architecture through deployment.

• Translated client requirements into a production e-commerce platform and owned delivery from planning through deployment.
• Improved checkout operations with secure user authentication and automated email invoicing for orders and payments.
• Centralized commerce data behind a GraphQL API backed by PostgreSQL, with Docker providing consistent deployment environments.
• Focused the storefront on mobile usability and SEO, helping the platform support organic traffic and engagement.
• Worked across the full stack with Next.js, React, TypeScript, Vendure, NestJS, Node.js, GraphQL, PostgreSQL, and Docker.

• TypeScript
• React
• Next.js
• Tailwind CSS
• Vendure
• NestJS
• Node.js
• GraphQL
• PostgreSQL
• Docker

• Delivered a fully custom commerce platform
• Automated email invoicing across checkout & payments
• Drove organic traffic via an SEO-optimized, mobile-first storefront

The Bionamic SaaS platform needed to determine whether WebAssembly was worth using for performance-sensitive workloads. I designed and ran a controlled benchmark study comparing C-compiled WebAssembly, AssemblyScript, and JavaScript.

• Replaced assumptions about WebAssembly performance with a repeatable benchmark suite comparing the same workloads across C-compiled WebAssembly, AssemblyScript, and JavaScript.
• Demonstrated with controlled tests that C-compiled WebAssembly ran common algorithms 5–91% faster than JavaScript, providing concrete evidence for optimization decisions.
• Identified that AssemblyScript only helped for some workloads, clarifying when its additional complexity was justified.
• Used Emscripten to compile C to WebAssembly and keep the runtime comparison controlled and comparable.
• Analyzed and visualized the results with Python, Pandas, and Matplotlib so the findings could be evaluated and acted on.

• C
• AssemblyScript
• Emscripten
• WebAssembly
• Python
• Matplotlib
• Pandas

• WebAssembly 5–91% faster than JavaScript
• C, AssemblyScript & JavaScript benchmarked
• Python, Pandas & Matplotlib analysis

Bionamic needed a reusable developer-facing way to consume its antibody research API. I led a five-person team in designing and shipping a REST API client and SDK, while setting the technical direction and mentoring the team.

• Reduced repeated API integration work by leading a five-person team to deliver a reusable REST API client and SDK for Bionamic's research platform.
• Helped a Java-focused team adopt JavaScript and TypeScript, giving the project a type-safe implementation aligned with the client library's needs.
• Designed a Node.js and Express SDK from scratch, establishing a standardized, reusable API client for consuming the REST API.
• Mentored the team on event-sourcing concepts to strengthen the architecture and implementation approach.
• Shipped the client library to production as a reusable npm package and established REST API and SDK patterns that could be reused by the team.

• REST APIs
• SDK Development
• TypeScript
• JavaScript
• Node.js
• Express
• Event Sourcing

• REST API client & SDK shipped
• Led a 5-person team
• Mentored the team on TypeScript, JavaScript & Node.js
• Mentored the team on event-sourcing

Malmö University

Focused on software engineering fundamentals and applied them through hands-on projects. Completed a bachelor thesis at Bionamic AB that benchmarked WebAssembly performance and led a five-person degree-project team in shipping a production REST API client and SDK.