Mohsen Moradi

Senior Software Engineer

Software Engineer | Full-Stack Developer | Backend Engineer (Node.js/TypeScript) | Driving 30-40% Throughput Gains & <350ms Latency | PostgreSQL, AWS (ECS/RDS/S3), NestJS

With over 10 years of experience as a Backend Software Engineer, I specialize in building fast, reliable, and compliant backends for data-intensive products in e-commerce, logistics, and manufacturing.

I partner with product teams to ship high-performance systems—achieving p95 latency < 350 ms, 30–40% throughput gains, and 40% faster incident recovery (MTTR)—ensuring that order orchestration, inventory, and last-mile flows run smoothly at scale.

Key Highlights
🔹Latency & scale: Cut p95 below 350 ms using idempotent APIs, keyset pagination, strategic caching, and SQL tuning (+30–50% query speed).
🔹Reliability & incident response: Reduced MTTR by 40% with structured logs, correlation IDs, and RED metrics—clearer on-call signal, faster recovery.
🔹Compliance & security: Removed 100% of PII from logs (GDPR), added JWT rotation + RBAC to prevent unauthorized access.
🔹Ops impact: Built real-time monitoring that reduced factory losses by 7%—a useful proxy for fulfillment/operations health.
🔹Delivery speed: Took releases from weeks to days with GitHub Actions CI/CD, automated quality gates, and a strong PR policy.
🔹Team enablement: Mentored five juniors; improved sprint defect resolution and code quality.

💡Tech I use

Backend:
Node.js (TypeScript), NestJS/Express, REST (OpenAPI), MongoDB, PostgreSQL (indexing & EXPLAIN ANALYZE), Redis, BullMQ (queues), Nginx

Front-of-stack:
React/Next.js, React Query, React Hook Form, Tailwind CSS, NextAuth, MERN Stack

Reliability/Observability:
SLOs, idempotency, keyset pagination, rate limiting, RED metrics, structured logs & correlation IDs, OpenTelemetry, Prometheus, Grafana, k6

Cloud/DevEx:
Docker, GitHub Actions (CI/CD), AWS, Vercel, feature flags, secrets management

Security/Privacy:
RBAC, JWT rotation, GDPR-compliant telemetry & audit

Languages:
English (Proficient), Persian (Native), Dutch (Beginner)

I get excited about roles where I own services end-to-end for checkout, order management, fulfillment, pricing/promotions, or courier integrations—teams with performance budgets, clear SLOs, great observability, and space to mentor.

✔️Open to relocation to the Netherlands; visa sponsorship required

Shiraz University

2012 – 2013
Iran, Shiraz

Master of Science (M.Sc.), Software Development

Staffordshire University

2008 – 2010
Kuala Lumpur, Malaysia

Bachelor of Science (B.Sc.), Computer, Web Development

Asia Pacific University of Technology and Innovation

2008 – 2010
Kuala Lumpur, Malaysia

Bachelor of Science (B.Sc.), Computer, Web Development

Islamic Azad University of Shiraz

2003 – 2006
Iran, Shiraz

Associate’s degree, Computer Software Engineering

Current Stack:
Node.js (TypeScript) NestJS/Express REST (OpenAPI) MongoDB
PostgreSQL (indexing & EXPLAIN ANALYZE) Redis BullMQ (queues) Nginx React/Next.js React Query React Hook Form Tailwind CSS NextAuth MERN Stack SLOs idempotency keyset pagination rate limiting RED metrics structured logs & correlation IDs
OpenTelemetry Prometheus Grafana k6 Docker GitHub Actions (CI/CD) AWS (ECS/RDS/S3) Vercel feature flags secrets management

Prior Stack:
• Python, C#, Asp.Net, AWS, Php, WordPress

Key Achievements :
🔸Reduced p95 latency to a stable < 350ms, ensuring SLA compliance and enhancing user experience by implementing idempotent APIs, keyset pagination, and strategic caching.
🔸Decreased incident Mean Time to Resolution (MTTR) by 40% by introducing structured logging with correlation IDs and RED metrics, which accelerated recovery and lightened the on-call workload.
🔸Optimized high-traffic database queries, cutting latency by 30-50% through systematic use of EXPLAIN ANALYZE, targeted indexing, and SQL rewrites to guarantee performance at peak and protect SLOs.
🔸Eliminated 100% of PII from logs to achieve full GDPR compliance, implementing data minimization, PII filtering, and automated erasure policies that significantly reduced audit effort and risk.
🔸Enhanced security with automated JWT rotation and Role-Based Access Control (RBAC), reducing incidents and preventing unauthorized access.

Key Achievements :
🔸Increased content update throughput by ~30% by re-engineering the corporate website (React/Node) and content workflow, resulting in improved SEO rankings and accessibility compliance.
🔸Reduced factory production losses by ~7% by architecting and delivering a real-time monitoring platform (Node/TS,PostgreSQL) with automated alerts and OEE-style performance indicators.
🔸Shortened software release cycles from weeks to just days by introducing a modern CI/CD pipeline (GitHub Actions),automated code quality tooling (ESLint/Prettier), and a mandatory pull request policy.
🔸Elevated team performance by mentoring five junior developers through targeted code reviews and skill-building workshops, leading to a higher defect resolution rate per sprint and improved code quality.
🔸Enhanced operational decision-making and cut incident response times by partnering with stakeholders to define KPIs, then building and shipping real-time monitoring dashboards and alert systems.

Key Achievements:
🔸Slashed clinical report delivery time from 48 hours to under 30 minutes by implementing standardized templates, robust Role-Based Access Control (RBAC), and a comprehensive audit trail.
🔸Boosted dispatcher accuracy and logistics throughput by 35% for a fleet of 230+ vehicles by engineering a high-volume telemetry ingestion system with intelligent deduplication and caching.
🔸Built a secure crypto payment gateway (433Bit) processing 500+ BTC transactions daily, using idempotent flows, integrated fraud detection, and automated reconciliation to guarantee transaction integrity.
🔸Saved ~200 administrative hours annually and cut manual errors by 30% by migrating a legacy construction management app to a modern PERN stack and automating key operational workflows.

Highlights :
🔸Championed and implemented foundational SDLC practices, including issue tracking and peer code reviews, to significantly reduce regression defects and enhance release predictability.
🔸Built automated reporting and audit trail systems to ensure regulatory compliance and improve cross-departmental data transparency, eliminating manual report generation.

Passionate about learning new techniques, programming languages, and any opportunities to enhance my career
Enthusiastic about multicultural teamwork and collaborative brainstorming
Open-minded and dedicated to hard work
Eager to embrace new challenges and tackle complex problems
Possess strong presentation and writing skills
A creative thinker, quick learner, and open to sharing knowledge
Proactively engaged in innovative initiatives

I entered this world in the enchanting city of Shiraz, Iran. My wife is my soul, my kids are my future, and my family is my life. Humanity, generosity, and honesty are my religions. Kindness and empathy, in my opinion, can change the world for the better. Striving for balance, I conscientiously attend to my physical, mental, and emotional well-being. A passionate chess enthusiast, I never turn down the opportunity for a strategic match. My interests span across football, volleyball, futsal, mountain climbing, and swimming, with unwavering support for Real Madrid. Beyond the realm of sports, I find joy in humor, once dedicating time to oil paintings, and maintaining a keen interest in art and creative pursuits.