{ "basics": { "name": "Mahdi Naji", "label": "Software Engineer", "image": "/images/av.jpg", "email": "contact@mahdinaji.ir", "phone": "+98 914 887 8138", "url": "https://mahdinaji.ir", "tagline": "I design and build reliable systems.", "summary": "I build backend and reliability-critical systems — currently on the core ride-matching engine at Snapp!, after three years as a Site Reliability Engineer there. I care about understanding systems well enough to find what others can't, and I use LLMs heavily as leverage — but I still own the outcome.", "location": { "city": "Tehran", "countryCode": "IR" }, "profiles": [ { "network": "LinkedIn", "username": "mahdinaji", "url": "https://www.linkedin.com/in/mahdinaji/" }, { "network": "GitHub", "username": "mahdinajiga", "url": "https://github.com/mahdinajiga/" }, { "network": "GitLab", "username": "mahdinaji", "url": "https://gitlab.com/mahdinaji/" }, { "network": "Telegram", "username": "Mahdi_Naji", "url": "https://t.me/mahdi_naji" } ] }, "languages": [ { "language": "Persian", "fluency": "Native" }, { "language": "English", "fluency": "Professional" } ], "work": [ { "company": "Snapp!", "url": "https://snapp.ir/", "position": "Software Engineer, Offering", "startDate": "2026-07", "highlights": [ "Diagnosed a consumer-registration bug that spiked CPU to 100% and then left it idle for extended stretches after rolling deploys; fix cut P99 latency for batch ride-processing from ~5s to ~500ms", "Profiled config processing and caching with Pyroscope, predicted ~12% CPU savings, and shipped a fix that cut CPU and memory usage by ~8%", "Tuned resources across the team's Redis clusters, releasing 60 CPU cores and fixing replica main-thread CPU saturation; fixed a maxmemory misconfiguration (~11% of pod memory) that caused key evictions and was close to a major incident", "Built an LLM-powered ops skill that manages Redis, RabbitMQ and application components, monitors and analyses their health, and records changes, ADRs and future plans", "Working on the core ride-matching engine" ], "logo": "/images/logos/snapp.jpeg" }, { "company": "Snapp!", "url": "https://snapp.ir/", "position": "Site Reliability Engineer", "startDate": "2023-05", "endDate": "2026-06", "highlights": [ "Handled incident management and root cause analysis, progressing from on-call shifts into SRE Production Core for the most complex incidents — including reproducing incidents in staging to confirm root cause", "Reduced MTTD to under 6 minutes and MTTR to under 15 minutes", "Hardened super app infrastructure and database platform to support a sister venture's BNPL platform ahead of its Black Friday campaign after prior-year downtime; the campaign ran with zero incidents", "Built a Go library that turns OpenTelemetry spans into unified Prometheus metrics, adopted company-wide, powering a live map of service dependencies and latency", "Built Changall, a full-stack tool for tracking infrastructure changes and managing their approvals, organizing 70+ change requests per month", "Designed business-metrics exporters (SQL databases, Prometheus, ClickHouse) for high-level business metrics and service/domain-specific metrics", "Gathered database metrics into organized dashboards with proper alerting, improving observability across 100+ database machines", "Led incident response for DDoS attacks, with fast detection and mitigation", "Defined SLIs/SLOs for application services across the company", "Built and maintained internal tooling: Prometheus, Grafana, AlertManager, legacy Ansible jobs (deprecated), CI/CD pipelines, LLM-assisted incident-investigation automation, the ELK logging stack, Jaeger/OpenTelemetry tracing, and Pyroscope profiling" ], "logo": "/images/logos/snapp.jpeg" }, { "company": "RasaTelecom", "url": "https://rasatelecom.com/", "position": "Co-founder & Software Engineer", "startDate": "2019-09", "endDate": "2023-04", "highlights": [ "Co-founded an IT services company serving local businesses and factories in Tabriz", "Built VmBox, a Go product integrating WHMCS billing with VMware vCenter to fully automate VPS provisioning", "Owned VmBox end-to-end as a product — marketing, customer support, technical planning, and full product maintenance", "Delivered VoIP calling and automatic-responder systems, virtualization setups, and IoT/Raspberry Pi projects for local businesses and factories" ], "logo": "/images/logos/rasa.jpeg" }, { "company": "Ramzinex", "url": "https://ramzinex.com/", "position": "DevOps Engineer", "startDate": "2022-09", "endDate": "2023-01", "highlights": [ "Built the monitoring stack from scratch (Prometheus, Grafana, dashboards, alerting)", "Supported migration from async PHP calls to an event-driven, Kafka-based architecture; partitioned topics for exchange-scale load", "Set up GitLab CI/CD pipelines with GitLab Runner-based Docker deployments", "Maintained deployments and monitoring of the PHP/Laravel monolith on the Docker platform; added logging to the code, parsed logs with the ELK stack, and built dashboards for business and technical metrics" ], "logo": "/images/logos/ramzinex.jpeg" }, { "company": "Prolar", "url": "https://prolar.pro/", "position": "Full-stack Developer", "startDate": "2019-03", "endDate": "2019-08", "highlights": [ "Full-stack development on an education platform (course publishing, enrollment, payments) in JavaScript/Meteor", "Built an Elasticsearch-backed search engine for the platform, merging data from multiple sources" ], "logo": "/images/logos/prolar.jpeg" }, { "company": "Freelance", "position": "Freelance Developer, Tabriz", "startDate": "2018-07", "endDate": "2019-03", "highlights": [ "Built freelance projects for small businesses, including a from-scratch Node.js e-commerce site for a home furnishings retailer", "First hands-on experience deploying and managing Linux servers" ], "logo": "/images/logos/free.jpeg" } ], "education": [ { "institution": "Tabriz University", "url": "https://int.tabrizu.ac.ir/en/", "area": "Computer Engineering", "studyType": "Bachelor", "startDate": "2018", "endDate": "2022", "summary": "Picked up a lot of ideas here, through structured study of important topics like production load, development, and reliability." }, { "institution": "Madani SAMPAD High School", "area": "Mathematics", "studyType": "High School", "startDate": "2012", "endDate": "2018", "summary": "Built the electronics for a national neuroscience competition (2nd place in Iran) — a remotely controlled rat maze and a steerable robotic cockroach — which is what got me into C, Arduino, and embedded systems." } ], "skills": [ { "name": "Languages", "keywords": [ "Go", "JavaScript", "TypeScript", "Java", "Python", "SQL" ] }, { "name": "Backend & Systems", "keywords": [ "Backend Development", "Real-time Systems", "WebSockets", "API Design", "Node.js" ] }, { "name": "Infrastructure & SRE", "keywords": [ "Site Reliability Engineering", "Incident Response & RCA", "System Design", "Kubernetes", "Docker", "HAProxy", "Nginx", "Envoy", "Linux", "GitLab CI/CD" ] }, { "name": "Observability", "keywords": [ "Prometheus", "Grafana", "OpenTelemetry", "Jaeger", "Kibana", "Pyroscope", "Loki", "Tempo", "Profiling" ] }, { "name": "Data & Messaging", "keywords": [ "MySQL", "MariaDB", "MongoDB", "Redis", "Elasticsearch", "Kafka", "RabbitMQ", "EMQX / MQTT" ] }, { "name": "Frontend", "keywords": [ "React" ] } ] }