Hafizur Rahman

Solutions Architect (Cloud | Big Data | AI/ML)

Profile summary

Career highlights

Key skills

Professional experience

Driving high-impact digital transformation and data modernization for Tier-1 Japanese enterprises.

• •Enterprise Data Modernization (Global Fast Food): Led the large-scale migration of legacy ETL architectures from Pentaho to Snowflake, significantly enhancing data processing scalability and accelerating time-to-insight for business intelligence.
• •Cloud Governance & DevOps (Pharmaceuticals): Served as AWS Infrastructure Lead, establishing robust cloud governance through service catalog based resource provisioning, encompassing CI/CD automation, improved data science pipeline execution framework
• •Operational Efficiency (Automobile): Engineered a RESTful provisioning engine for AWS and Snowflake that reduced infrastructure deployment costs by 80% through automated Standard Operating Procedures (SOPs).
• •Platform Innovation (Automobile): Enhanced data discoverability by optimizing metadata indexing and developing intelligent resource-estimation APIs to predict cloud spend.
• •Technical Knowledge Transfer: Established team competence in various technologies by delivering technical training on Git, Docker, Jupyterhub, R.

Shaped the technical strategy for an on-premises visualization platform at NEC Corporation. Steered an offshore team through the evaluation and integration of data analytics tools to meet internal reporting requirements.

• •Architectural Decision Making: Evaluated the trade-offs between various BI tools (ECharts, Dash, Power BI) and drove the strategic implementation of Apache Superset as the core visualization engine.
• •Secure Platform Engineering: Directed the development of secure authentication frameworks to enable seamless, single-sign-on (SSO) integration of analytics dashboards within client’s internal corporate infrastructure.
• •Data-to-Insight Delivery: Spearheaded the development of industry-specific analytical tools for the retail sector, transforming raw inventory data into actionable, high-visibility dashboards for convenience store management.
• •Cross-Border Team Leadership: Managed technical delivery lifecycles across distributed global teams, ensuring alignment between client requirements and offshore engineering execution.

Steered technical strategy for internal forecasting and call center platforms, reporting to the engineering leadership. Defined architecture for data pipelines and communication tools, overseeing the integration of security protocols and real-time monitoring solutions across distributed systems.

• •Real-Time Intelligence Systems: Developed sophisticated real-time streaming pipelines to analyze voice interactions, utilizing automated alert systems to maintain high service-level standards in call center operations.
• •Platform Modernization: Spearheaded the redesign of enterprise REST APIs and implemented automated database schema management (Liquibase) to support large-scale application refactoring.
• •Enterprise Data Orchestration: Designed and implemented a highly flexible, variable-driven ETL engine for multi-database environments (Redshift/S3/SQL Server), significantly reducing manual data engineering overhead.
• •Remote Workforce Enablement & Security: Architected a secure, automated "Work-from-Home" monitoring solution to ensure operational integrity and compliance during the transition to distributed operations.
• •Architectural Governance & DevSecOps: Enforced rigorous software quality through code reviews and automated schema versioning (Liquibase); spearheaded application security initiatives, including penetration testing and vulnerability mitigation (OWASP Top 10).
• •Technology Evaluation & Integration: Led strategic evaluations of communication technologies (WebRTC, Twilio, Amazon Chime) to architect the next generation of interactive, real-time communication platforms for distributed teams.
• •Technical Knowledge Transfer: Performed technical presentation on Spark, OWASP Top 10, WebRTC based Screen Sharing app, Twilio based Web Chat app

Architected data acquisition pipelines for mainframe replatforming initiatives, steering the integration of distributed processing frameworks. Influenced technical standards by authoring documentation and delivering presentations on big data ecosystems to internal engineering teams.

• •Data Engineering: Spearheaded the transition of legacy mainframe data architectures to a modern, distributed Hadoop/Spark ecosystem, ensuring high availability and data integrity for clinical intelligence.
• •Advanced Bi-Temporal Data Modeling: Engineered a sophisticated "Bi-temporal" data model, enabling the organization to perform complex historical snapshots and point-in-time analysis without the massive storage overhead of traditional snapshotting.
• •Distributed Data Acquisition: Designed and implemented high-scale, distributed web-crawler using Scala and Akka on AWS EC2; automated the large-scale ingestion of Japan’s healthcare infrastructure data (hospitals and clinics).
• •Technical Thought Leadership: Acted as a subject matter SME (Subject Matter Expert) for the organization, delivering technical deep-dives on Big Data ecosystems (Hadoop, Spark, Hive) and publishing technical architectural guides for distributed computing environments.

Influenced infrastructure reliability and development workflows by managing configuration automation and log analysis systems. Steered the implementation of traffic control mechanisms and experimental testing frameworks to support platform stability and feature validation.

• •Infrastructure as Code (IaC) & Automation: Leveraged Terraform and Ansible to eliminate manual provisioning errors, significantly accelerating the deployment velocity of cloud-native resources.
• •API Resilience & Security Engineering: Developed specialized Lua-based rate-limiting logic for the Kii Cloud API, protecting core infrastructure from distributed denial-of-service (DDoS) attacks and ensuring platform stability.
• •Product Innovation (A/B Testing): Architected the backend infrastructure for A/B testing capabilities within the Kii Cloud platform, empowering mobile app developers to drive user engagement through data-driven experimentation.
• •Advanced Data Modeling Research: Conducted technical evaluations of Graph Databases (Neo4j, OrientDB) to support complex, relationship-based data modeling requirements.
• •Technical Subject Matter Expertise: Acted as a technical lead in presenting architectural deep-dives on distributed systems (Hadoop) and IoT protocols (MQTT) to internal and external stakeholders.

Defined technical migration strategy for legacy web infrastructure, steering the transition from ColdFusion to Java. Managed internal search capabilities and monitoring systems to improve data visibility across the engineering organization.

• •Enterprise Application Modernization: Spearheaded the large-scale architectural migration of a mission-critical web platform from legacy ColdFusion to a high-performance, scalable Java-based ecosystem, enhancing system reliability and throughput.
• •Real-Time Performance Observability: Engineered custom monitoring extensions (Munin) to track critical business metrics, such as real-time banner click-through rates (CTR) and page-views.
• •Automated Information Discovery: Architected an automated enterprise search solution using Apache Lucene and Crawler4j; implemented specialized Japanese language analyzers (Sen) to enable seamless, high-speed information retrieval across unstructured intranet data.

Facilitated technical delivery for international clients including IBM, ACCESS, and Atom Systems. Managed project requirements and technical analysis while maintaining hands-on development responsibilities for critical system components.

• •Client-Facing Technical Delivery: Served as the Lead Engineer for high-stakes, onsite client engagements (IBM, ACCESS), bridging the gap between client business objectives and technical execution.
• •Requirement Engineering & Scope Management: Actively led client-facing discovery sessions to translate ambiguous business needs into rigorous functional requirements; successfully negotiated project scopes to ensure technical feasibility and alignment with delivery timelines.
• •Project Orchestration: Managed distributed engineering teams through agile task orchestration, ensuring high-quality software delivery within strict, client-mandated deadlines.
• •Prototype-Driven Development: Led the rapid prototyping of critical system components to de-risk complexity and validate technical assumptions prior to full-scale production.
• •Technical Capability Building: Conducted specialized training sessions in Agile development and application framework architecture to elevate the technical competency of the team members.

Education

Artificial Intelligence https://cdn.sanity.io/files/tlr8oxjg/production/5461a3e113c8225f0139d59fb5fa95fa5822e89f.pdf

Civil Engineering

Certifications

Languages