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Saurabh Jhunjhunwala — Software Architect Professional summary Seasoned Software Architect with 18 years building scalable, cloud-native systems & product platforms across • Banking • Cargo • Insurance • Retail • Telecom Strong full‑stack background in Java / Python and modern backend stacks, experienced in designing microservices, event-driven systems, data platforms and migration to cloud. Proven in solution design, technical leadership, team coaching and driving architecture decisions that balance robustness, operability and cost. Comfortable across SQL and NoSQL ecosystems including graph and wide‑column stores. AWS Certified Solutions Architect — Associate. Core strengths • Architecture and system design: microservices, distributed systems, event-driven design, API strategy, CI/CD. • Backend engineering: Java (modern versions), Spring Boot, Python, Node.js, message brokers (Kafka, ActiveMQ, RabbitMQ). • Data platforms: MongoDB, Cassandra, Neo4j, Postgres, MySQL, Oracle, IBM DB2; data engineering with Spark/Scala. • Cloud & containers: AWS, Azure, PCF, IBM Bluemix; Docker, Kubernetes, Mesos, Rancher. • Integration & security: ESB (Mule, WSO2), OAuth2 / OpenID Connect, WSO2-IS, API gateway patterns. • Frontend & full‑stack: React.js; UI integration for enterprise workflows. • Operational excellence: observability, capacity planning, automated deployments, backups and DR. • Leadership: technical lead for cross‑functional teams, architecture reviews, mentoring and stakeholder alignment. Technology highlights • ActiveMQ / RabbitMQ • Java 8–21 / Spring Boot / Spring • Kafka • MongoDB Web Flow • Cassandra • Microservices • WSO2 • Graph DB - Neo4j, AWS Neptune • REST & SOAP • Mule • RDBMS - Postgres / Oracle / • Python • IBM ODM MySQL / DB2 • Node.js • Commander • Docker / Kubernetes • React.js • Spark/Scala • Jenkins; • GCP / PCF / AWS / Azure Selected projects (grouped by project, newest first) Payments platform (Payments Systems) Role: Solution Architect / Technical Lead Team size: 12 Summary: Built a resilient payments transformation platform that normalizes incoming payment messages to a canonical format and routes to payment gateways. Responsibilities: • Designed microservices architecture for ingestion, normalization, validation and routing to gateways. • Defined schema contracts, canonical models and message transformation patterns. • Implemented high‑throughput message processing with fault-tolerance and retries. • Conducted design/code reviews and guided team on performance tuning and data modelling. Tech stack: Java 21, Spring Boot, Cassandra, Kafka, REST APIs, Docker, Kubernetes, CI/CD pipelines. Loan disbursement system (Banking) Role: Solution Architect Team size: 12–17 across streams - : Digitized mortgage and loan disbursement workflows Responsibilities: • Architected microservices for loan lifecycle, document workflows and third‑party integrations. • Led integration with authentication, payment gateways and legacy core banking interfaces. • Defined data retention, auditability and security posture for PII and financial data. • Tech stack: Java 17, Spring Boot, React.js, PCF, Mule ESB, Cassandra, REST. Retail P&L modernization & claims platform (Retail / Insurance) Role: Azure Solution Architect / Technical Lead Team size: 26 - : Built a new P&L platform for a leading retail chain and modernized legacy claims systems for a healthcare/insurance provider to compute member benefits. Responsibilities: • Designed streaming and batch pipelines for claims ingestion and real‑time eligibility checks. • Implemented data processing using Spark and Kafka and modernized UI layers with React Js • Led cloud migration strategy and automation for CI/CD and deployments on Azure. • Tech stack: Spark, Scala, Kafka, Azure, Microservices, React.js, Spring Boot. Core banking transformation (Premier bank in Europe) Role: Technical Architect & Lead Team size: 18–23 - : Digitized customer journeys and modernized banking architecture Responsibilities: • Defined decomposition strategy from monolith to microservices and API-driven integration. • Introduced Docker and cloud-agnostic builds, automated deployments and observability. • Ensured secure integration patterns and performance baselines for critical banking flows. • Tech stack: Node.js, Java, Spring, MongoDB, React.js, Docker, Kubernetes, Jenkins. Cargo & logistics platform Role: Technical Architect / Team Lead Team size: 8–14 - : Built tracking and messaging systems for air cargo services Responsibilities: • Designed message-driven flows, JMS integration and notification systems (email/SMS). • Led development of thick client and server components, integration with carriers and partners. • Tech stack: Java EE, EJB, JMS, Fatwire, Jahia, WebSphere. Mobile broadband service provider (Telecom) Role: Module Lead / Senior Software Engineer Team size: 14 - : Built onboard broadband management systems for in‑flight connectivity with multiple vendor

Oracle : - Having rich experience in Oracle Database Installation, upgrades. - install and setup high availability e.g. RAC , DG , GG - Rich experience in migration from one platform to another .\ - Rich experience in migration from on-prem to AWS/Oracle cloud . - Experience in AWS DMS - Setup the backup and recovery standards. - DB and query tunning. - troubleshoot performance issues - Automation using shell/batch/python scripting - debugging users issues . - Automate repetitive task using python/shell/batch script. - Having fair hands on automation using Ansible for Oracle DBA repetitive task. Migration: =========== - Oracle EE/SE to postgres AWS RDS using AWS SCT & DMS services - Oracle EE/SE to Oracle Cloud using datapump. - Oracle EE/SE to MariaDB using Goldengate. - Migration from one platform to another platform - Migration from oracle to databriks Automation: good in shell scripting , batch , python and ansible. recently completed oracle grid and rdbms installation automation using Ansible . Good experience in upgrades and performance tunning. Experience DBA devops and automation expertise. Postgres : ======= - Installation, upgrade minor and major - AWS Auroa RDA - postgres - troubleshooting - performance analysis Replication: Using golden gate Shareplex Debezium log miner and Openlogreplicator

SQL Server & Database Expert | 25+ Years of IT Experience Data Modeling | Design & Development | Data Analytics | Performance Tuning | Data Visualization With over 25 years of extensive IT experience, I specialize in SQL Server environments (from SQL Server 2005 to 2019). I deliver high-quality, scalable database solutions that ensure optimal performance, data integrity, and seamless integration. My expertise spans design, modeling, development, implementation, and support of SQL Server systems, with a focus on performance and efficiency. Key Skills & Expertise: T-SQL Proficiency: Creating complex triggers, tables, stored procedures, functions, and views to ensure seamless data management and integrity. Database Management: Extensive experience with normalization and RDBMS, optimizing structure and performance. SQL Server Services: Hands-on with SSIS, SSAS, and SSRS for integration, analysis, and reporting. Performance Tuning: Optimizing performance and query tuning for efficient database operation under heavy load. Data Modeling: Specializing in logical and physical modeling, using tools like Erwin for effective database design. Data Warehousing & ETL: Expertise in data warehouse design, SSIS, Azure Data Factory, and building star schema dimensional models. Business Intelligence & Reporting: Skilled in SSRS and Power BI for interactive dashboards, reports, and visualizations that turn data into actionable insights. Optimization Tools: Familiar with Index Tuning Wizard, SQL Profiler, and Performance Monitor to resolve bottlenecks. Database Administration: Proficient in MySQL and PostgreSQL database development, configuration, troubleshooting, and administration. Additional Expertise: DBA Tasks: Server maintenance, fail-over clustering, replication, backup/restoration, job scheduling, and error handling. Performance Monitoring Tools: SQL Sentry One, Grafana, and Spotlight for SQL Server. Collaboration & Teamwork: Strong in cross-functional collaboration to meet business objectives. Adaptability & Multitasking: Ability to handle multiple projects while adapting to new technologies and client needs. Quick Learner: Fast to pick up new technologies and deliver impactful solutions. Let’s Build Scalable & High-Performing Solutions Together! If you're looking for a results-driven database expert to optimize your SQL Server environment, design robust data models, or create effective BI reports, let’s connect. I'm passionate about helping clients achieve their goals through high-performance database solutions.

Hello, I consider myself an expert in Oracle Database world and Open for new opportunities! I'm passionate about solution in Oracle Database design + APEX+ OCI + ORDS + OAC Expert Developer. Working with more than 13+ years' experience in Oracle technology stack. With proven experience of expert in database and OCI practice. ⭐| Technical Area Expertise: -------------------------------------------- ✔️Expert Oracle SQL/PLSQL Developer ✔️Expert Oracle APEX Developer ✔️Oracle Cloud Infrastructure (OCI) ✔️Oracle ORDS services REST develop ✔️Oracle VBCS and Form & Report ✔️Oracle OAC OBIEE Publisher Reports ✔️Oracle WebLogic support and Maintains ✔️AI&ML services projects ✔Data Integration ETL tools ⭐| Database- Technical Expertise: • Strong knowledge of Oracle Database versions 23ai/19c/12c/11g • Hands on Data Modelling and Database Design • Expert knowledge of Performance Optimizations Query Tuning • Expert of advance SQL quires & PL/SQL Programming • Hands on collections and records advance level exception handling • Database DBA Administration for standalone and OCI hosted database • Database connection issue with other languages TNS troubleshooting • Debugging of issue and SQL developer data import and export • Oracle WALLET manager , ACL and Network security issues • Oracle Certificate installations for API outbound call from DB • Send SMTP and HTTP send mail from database • Oracle REST Data Services (Configurations, REST APIs development) • Webservices Types REST, SOAP XML & JSON Data Processing • Data integrations and ETL tools (data extractions transform) ⭐| APEX - Technical Expertise: • Oracle Apex 24.1, 23, 22.x,20.x,19.x,18.x,5.x • SQL& PL/SQL Programming expert (Advanced Level) • Expert in writing Oracle Function, Procedure, Package ,Triggers, cursors and sequences. • Oracle Forms and reports to APEX modernization • Implemented projects on Oracle cloud AI Services (Generative AI, Language, Vision, Document, speech) with APEX projects • Oracle REST Data Services (ORDS) APIs development and ORDS Configurations • Integrations with APEX- Oracle Services, Microsoft, Google, Amazon, Digital Ocean, Login.com, Tableau, PayPal. • Webservices Types REST, SOAP XML & JSON Data Processing in APEX. • Automations With APEX services like Files processing, mails notification, Reports and Custom JOBS. ⭐| OCI - Technical Expertise • Setting up and managing OCI networking (VCN, subnets, gateways, VPNs, etc.) • Configuring OCI Web Application Firewall (WAF) to protect applications • Email Delivery setup with (DKIM setting) • Data-integrations, data-loading, OAC report setups • WebLogic, NGINX, and load balancer setups OCI • Supporting migration of workloads (VMs, databases) to OCI • Configure DNS and manage domain mapping to the new OCI resources. • Managing Identity and Access Management (IAM): domains, policies, dynamic groups, compartments • Setting up IAM policies, compartments, and security controls (Cloud Guard, Vault) • Working with Linux-based environments (Oracle Linux, RHEL) for system configuration, performance tuning, and troubleshooting • Monitoring, performance tuning, and cost optimization • Installation of Oracle database, APEX, OBI, ORDS, WebLogic infra. ⭐| OAC/OBIEE - Technical Expertise • OAC report dashboard design • Working on BIP report development • BIP report bursting and exporting • Email delivery of monthly reports using Bursting • Crystal AOP, Jasper, PLPDF, Tableau Reports. I have been working with clients across the globe. 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞 I guarantee to solve your technical problems 100% in timely manner! Thanks for reading my profile and I am confident that we can make your project successfully together.

Data Integration specialist with over 19 years of experience in designing, building, maintaining and supporting Data warehouse and ETL applications. Extensive experience working on Snowflake, dbt, Datastage , Informatica, AWS, Unix/ Python Scripting. Experienced with relational databases - Snowflake, Netezza, DB2, Oracle and SQL server. Proficient in writing SQL queries to perform analysis and ELT loads into tables. Experience working on Bigdata tools – HDFS, Hive, Sqoop & Kafka. Exposure to Cloud technologies – ASW and Azure as data sources. Experienced working with diverse clients belonging to - Banking, Manufacturing, Restaurant and Retail domain. Good understanding of end-end architecture of Datawarehouse and applications worked on. Experienced in working on Agile (Scrum) & waterfall methodologies of project execution. Highly motivated, strong analytical skills, quick learner and interested to learn and work on new technologies.

If your IBM i (AS400) or Mainframe system runs mission‑critical operations, you need modernization without risk I help organizations stabilize, modernize, and integrate legacy IBM i / Mainframe applications while preserving uptime, performance, and business logic. My approach focuses on incremental, low‑risk modernization—extending system life while enabling web, API, cloud, and AI‑driven innovation. With deep hands‑on experience across RPG, COBOL, Mainframe technologies, EDI integrations, and modern web stacks, I provide senior‑level ownership from assessment through production support. What I Bring IBM i / AS400: IBM i (AS400), iSeries, IBM Power Systems (V5R3–V7R5) — system modernization, application migration, performance optimization, and production stability. RPG & ILE: RPG Free, RPGLE, SQLRPGLE, RPG II–IV, CLLE, ILE — legacy refactoring, modularization, DB2 optimization, DDS‑to‑SQL migration. COBOL & Mainframe: COBOL, NetCOBOL, Fujitsu COBOL, CICS, JCL, DB2, VSAM — mainframe modernization, batch migration, performance tuning, controlled legacy transformation. Integration & Modernization: AS400 green‑screen to web (Profound UI, LANSA, SYNON, Rocket Aldon), APIs, EDI (ANSI X12, EDIFACT), ERP & Manhattan WMS integration, ESB, JSON, hybrid/cloud modernization, Angular & React frontends. AI‑Assisted Modernization: AI‑based code analysis, documentation, refactoring, anomaly detection, and batch/workflow automatio Services AS400 & Mainframe Modernization | RPG & COBOL Migration Green Screen to Web Conversion | EDI & API Integration DB2 & Data Migration | Production Support & Maintenance Skills & Technologies Languages: RPG, RPGLE, RPG Free, COBOL, NetCOBOL, JCL, SQL, Python, Java, PHP Databases: DB2/400, IBM Db2, VSAM, PostgreSQL, MS SQL Tools: Profound UI, LANSA, SYNON, Presto, Rocket Aldon, RDz, Eclipse Source Control: Aldon, Turnover, Implementer, Endevor, Git, SVN Platforms: OS/400, IBM i, AS400, IBM Power Systems Infor & JDE Integration: Experience integrating IBM i / AS400 systems with Infor (LN, M3) and JD Edwards (JDE)—supporting data migration, interface development, batch jobs, APIs, and EDI‑driven business workflows. Domains- Banking | Retail | Manufacturing | Insurance | Healthcare | Life Sciences | E‑Commerce | Defense If your IBM i / AS400 or Mainframe environment is critical to revenue, let’s modernize it strategically, with stability and measurable ROI. Click “Hire Me” or send an invite to discuss your project. Keywords IBM i Modernization | AS400 Modernization | RPG Modernization | RPG Free | RPGLE | COBOL Modernization | NetCOBOL | Fujitsu COBOL | Mainframe Modernization | Green Screen Modernization | IBM i Web Enablement | RPG to Java | RPG to .NET | DB2 Migration | ERP Integration | Manhattan WMS | EDI Integration | AI Legacy Modernization | IBM Power Systems | API Integration | Legacy System Transformation |