Built from production experience
The content I teach is shaped by real backend systems, not only tutorials or academic examples.
Senior Software Engineer @ Veriff · Ex-Twilio · 10+ years
Learn backend engineering from real production experience.
I write and teach about Java, Spring Boot, Go, Python, system design, distributed systems, databases, Kafka, RabbitMQ, Temporal, Kubernetes, observability, and career growth — helping Bengali developers become industry-ready.
JavaSpring BootDatabasesDistributed Systems
Learning Path
Backend Developer Roadmap
From Java fundamentals to Spring Boot, databases, queues, scaling, and production engineering.
Java & OOPFoundation for backend development
Spring Boot APIsBuild real backend applications
Advanced SystemsQueues, scaling, reliability, design
10+ yearsEngineering Experience
6,000h+Freelance Delivery
Courses
Structured backend learning path
A Bengali-first backend engineering roadmap designed to take learners from Java fundamentals to production-grade backend systems.
Planned
Beginner
Java & OOP Foundation
A beginner-friendly course for learning Java, object-oriented programming, problem solving, debugging, and the core programming foundation needed for backend development.
- Designed for Bengali-speaking beginners
- Strong focus on programming fundamentals
- Practical examples instead of only theory
Planned
Intermediate
Backend Development with Java & Spring Boot
A practical backend development course focused on Java, Spring Boot, REST APIs, PostgreSQL, authentication, testing, Docker, deployment, and real industry preparation.
- Industry-focused backend development
- Real project-based learning
- Covers both coding and engineering practices
Planned
Advanced
Advanced Backend Engineering & Distributed Systems
An advanced backend engineering course covering database design, queues, caching, event-driven architecture, scaling, distributed systems, observability, reliability, and production architecture.
- Built from real backend production experience
- Focused on practical system design
- Covers databases, queues, scaling, and reliability
Writing
Latest backend engineering articles
Practical notes, guides, and lessons on Java, Spring Boot, distributed systems, databases, career growth, and product building.
Success isn’t about the destination, It’s about how far you’ve come
We’re taught to chase big titles, fame, and fortune as the ultimate signs of success. But what if real success is quieter, deeper, and far more personal? A reflection on growth, struggle, and why the journey matters more than the headlines.
ClickHouse: A Practical Guide for Developers
ClickHouse is a high-performance columnar OLAP database built for real-time analytics at scale. Learn its core concepts, schema design rules, table engines, and example queries in this practical guide.
AWS Outage: Lessons on High Availability and Multi-Cloud Strategy
The October 2025 AWS US-EAST-1 DNS outage disrupted several major services. Learn how multi-AZ deployments, redundancy, and multi-cloud strategies can help businesses survive regional cloud failures.
Journey
From building products to teaching backend engineering
A career shaped by real product work, distributed systems, global engineering teams, and the desire to help Bengali developers grow.
Software Engineer
Pathao
Worked on backend systems for high-growth consumer products across ride-sharing, delivery, logistics, and location-based services.
MicroservicesDockerKubernetesSearchBackend APIs
Founder
Shopemaa
Built a headless ecommerce platform and learned the engineering, product, customer, and business realities of building software from scratch.
JavaSpringPostgreSQLRabbitMQRedisSaaS Architecture
Senior Software Engineer
Twilio
Worked on backend services and messaging infrastructure in a global engineering organization.
JavaScalaKafkaAWSDistributed Systems
Lead Software Engineer
Zulzi On-Demand Pty Ltd.
Led backend and platform development for a hospitality product used by restaurants and operational teams.
GoJavaPostgreSQLKafkaRabbitMQTemporal
Senior Software Engineer
Veriff
Working on backend systems for identity verification, fraud prevention, reliability, and platform engineering.
PythonRabbitMQTemporalDistributed SystemsBackend Platforms
Backend Engineering Educator
Sakib Sami / learn.sakib.ninja
Turning 10+ years of backend engineering, distributed systems, leadership, and product-building experience into practical Bengali backend engineering education.
JavaSpring BootSystem DesignDatabasesDistributed SystemsCareer Growth
Expertise
What I build, write, and teach
My content is centered around practical backend engineering skills that matter in real production systems.
Backend Platform Engineering
Designing and building reliable backend services, internal platforms, APIs, service boundaries, authentication, authorization, validation, and production-ready application architecture.
Backend service designREST API designInternal platformsService boundaries
JavaGoPythonSpring FrameworkOpenAPI
Distributed & Event-Driven Systems
Building systems that communicate through queues, streams, workflows, events, CDC pipelines, and service-to-service interactions while handling reliability, scale, and failure.
Event-driven architectureMessagingWorkflow orchestrationCDC pipelines
KafkaRabbitMQTemporalDebeziumRedis
Data Systems, Search & Storage
Working with relational, NoSQL, search, vector, and cache systems to support real product requirements, high-throughput workflows, and data-heavy platforms.
Schema designData modelingIndexingQuery performance
PostgreSQLCassandraScyllaDBRedisElasticsearch
Cloud, Kubernetes & GitOps
Deploying and operating backend services using containers, Kubernetes, cloud platforms, CI/CD pipelines, GitOps workflows, infrastructure automation, and production runtime configuration.
DockerKubernetesCI/CDGitOps
DockerKubernetesAWSArgoCDGitLab CI
Observability & Reliability
Designing systems that are easier to monitor, debug, operate, and recover when something goes wrong in production.
Structured loggingMetricsDashboardsAlerting
GrafanaPrometheusLokiFluentBitSentry
Product Engineering & Technical Leadership
Turning business requirements into usable products by balancing architecture, delivery speed, maintainability, customer workflows, team alignment, and long-term product impact.
0 to 1 product deliveryEngineering leadershipArchitecture decisionsCode reviews
JavaGoSpring FrameworkPostgreSQLRabbitMQ
Projects
Products, platforms, and experiments
Alongside engineering work and teaching, I build products that explore SaaS, ecommerce, QR technology, education, and practical business workflows.
SaaS ProductActive
QRCentraal
Dynamic QR codes, short links, campaigns, analytics, and page builder for growth-focused businesses.
QRCentraal is a dynamic QR and campaign platform built for businesses that want to turn scans into measurable actions. It includes QR projects, short links, campaigns, analytics, team accounts, and a OnePage page builder.
Next.jsJavaSpring BootPostgreSQLRedisPostHog
Visit projectHeadless Ecommerce SaaSPast / Founder Journey
Shopemaa
A scalable headless ecommerce API platform for multi-tenant, enterprise-grade commerce workflows.
Shopemaa was my founder journey into building ecommerce infrastructure from scratch. It covered storefronts, orders, payments, customer flows, API keys, custom domains, tenant-aware platform architecture, and the business reality of turning software into a product.
JavaSpring BootPostgreSQLDockerRabbitMQRedis
Education PlatformBuilding
Learn Sakib Sami
Practical backend engineering courses for Bengali developers.
Learn Sakib Sami is the course platform where I am building structured backend engineering courses in Bengali, starting from Java and OOP and moving toward Spring Boot, databases, system design, distributed systems, production engineering, and career readiness.
Next.jsJavaSpring BootPostgreSQLPaymentsVideo Lessons
Visit project