Mahtab Uddin Shahed

Background

About Mahtab Uddin Shahed

A Software Engineer with a background rooted in backend architecture, system design, and infrastructure-level engineering—primarily within the financial technology domain. Work has spanned solutions such as cross-border payment systems, internet banking, and eWallet platforms, with a focus on building scalable, secure, and business-aligned systems.While recent work has been centered on Java and the Spring ecosystem, efforts have always been made to remain flexible and language-agnostic—driven by the belief that strong backend engineering principles transcend specific tools or frameworks.Technical responsibilities have included leading backend teams, mentoring engineers, performing code reviews, and driving architectural decisions. Additional involvement has included project planning, cross-team coordination, and contributions to the hiring process, particularly in scaling engineering capabilities for complex Fintech products.Projects delivered include multiple full-scale deployments across both local and international markets, including an AI-assisted cross-border payment solution, an internet banking system, and a consumer eWallet, all currently operating in production environments.The role emphasizes aligning engineering efforts with business goals, delivering solutions that are both technically sound and commercially impactful. There’s a strong interest in building systems that enhance user experience and drive real-world value.Technical Skills & ExpertiseLanguages:Java, PHP, Golang, JavaScriptFrameworks & Platforms:Spring Boot, Spring Cloud, Spring Security, Java EEAuthentication & Security:OAuth2, OpenID Connect, Single Sign-OnDatabases & Persistence:MySQL, PostgreSQL, JPA/Hibernate, ProxySQL, PgPool-IIArchitecture & System Design:Microservices, Distributed Systems, Change Data CaptureMessaging Patterns (P2P, Pub/Sub)Caching:RedisProtocols & Communication:HTTP/S, TCP, UDP, gRPC, MQTT, AMQPObservability & Monitoring:Promtail, Loki, Grafana, Signoz, ELK, Prometheus, Java Flight RecorderContainers & Infrastructure:Docker, K8s, Apache Kafka, DebeziumTomcat, Nginx, KeepalivedBuild, CI/CD & Scripting:Maven, Gradle, Git, Shell Scripting, Jenkins, Argo CDNetworking & System Fundamentals:TCP/IP Stack, DNS, NATing, Routing Tables, Subnetting, CIDR, iptablesOS & Tools:Linux, macOS, WindowsCLI Tools: top, htop, iftop, netstat, journalctl, tcpdump, lsof, curlIntelliJ IDEA, Visual Studio CodeCore Engineering Strengths:Data Structures & Algorithms, Multithreading, Concurrent Programming