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Hello, Myself, Debasis from Kolkata, have 9 years of experience in Oracle APEX (ver 4.2 - 24.2) mainly, have experience in SQL, PL/SQL, Frontend part (JavaScript, jQuery, CSS, HTML). I have worked on a few 3rd party API Integrations with Oracle APEX applications and worked on AOP, BI Publisher also. I have some knowledge in Oracle Fusion Cloud API Integration in Oracle APEX. Thanks, Debasis Kundu

✅ ♛ TOP-RATED With 20+ years of experience in SQL and Database Engineering, I specialize in database programming, performance optimization, data migration, and automation. Having led digital transformation projects across BFSI, Healthcare, and SaaS domains, I bring deep technical precision and a results-driven approach. I ensure database ecosystems are secure, scalable, and high-performing, with a focus on tuning, modernization, and seamless data flow. Beyond databases, my expertise extends to cloud migration (Azure, AWS, GCP), DevOps/DevSecOps, web and mobile application development, UI/UX design, and end-to-end technology consulting. Backed by my team at Kinitous LLP, I deliver full-stack, cloud-native solutions that drive innovation, operational efficiency, and sustainable growth. 💾 Database & SQL Expertise • Expert in MS SQL Server, PostgreSQL, MySQL, SQLite, SQL Azure, MongoDB, No-SQL, etc... • T-SQL Programming – Stored Procedures, Functions, Views, and Complex Queries • Query Optimization & Performance Tuning • ETL / SSIS / Data Migration (On-Prem & Cloud) • Database Architecture, Maintenance Plans, Backup & Recovery • High Availability Solutions – Log Shipping, Replication, Clustering • Power BI, Crystal Reports, Data Analytics & Automation (VBA, Excel, C#) ☁️ Cloud & DevOps • End-to-End Cloud Migration (Azure, AWS, GCP) – Zero data loss transitions • Application Modernization – Rehost, Re-platform, or Rebuild existing apps • Infrastructure & Data Center Modernization • DevOps / DevSecOps for Continuous Delivery and Security Integration 🏦 Domain Expertise • Banking & Capital Markets – Reference Data Management, Trading & Asset Mgmt Apps • Healthcare – EMR Optimization, Centralized Database Migrations • Wellbeing Platforms – AI-driven Engagement, Analytics, and Automation ⚙️ Automation & Data Mining • SmartSheets ↔ SQL Integration • XML/JSON ↔ SQL Data Pipelines • Web Scraping & Fuzzy Matching • Excel/VBA Automation for Data Cleansing & Reporting • Data Mining & Preparation – Extracting, deduping, and cleaning large datasets for analytics and migration

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.

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

I help organizations set up, fix, and improve their HR systems — using Oracle Fusion HCM and Oracle E-Business Suite HRMS. With over 20 years of experience, I work across the full range of HR technology: payroll, talent management, performance management, and HR transformation projects. I've worked with large organizations across real estate, hospitality, aviation, telecom, and technology — including deep experience in the UAE/GCC region as well as global environments. What I can help with: ✔ Oracle Fusion HCM — Core HR, Payroll, Talent Management, Recruiting, Performance & Goals, Time and Attendance, Learning, and Helpdesk ✔ Oracle E-Business Suite HRMS & Payroll ✔ Oracle Recruiting Cloud ✔ Oracle Time & Labor, Learning Management, Self-Service HR (SSHR) ✔ SAP SuccessFactors and broader HR transformation programs ✔ Business analysis, solution design, and User Acceptance Testing (UAT) ✔ Production support, troubleshooting, and process improvement ✔ Performance management — KPIs, OKRs, and goal-setting frameworks I've led and supported HR technology programs at large global organizations — helping them run smoother HR operations, improve the employee experience, and get more out of their workforce. Whether you need help implementing Oracle Fusion HCM, fixing an existing setup, running UAT, optimizing payroll, or just need a functional consultant who's done this before — I can help you get practical results.

I am Oracle Integration Cloud (OIC) Certified Integration Specialist with strong hands-on experience in OIC-based integrations with analysis, architecture, design, build and Hypercare support expertise. I am often invited to interface business requirement discussions to assess technical feasibility. If there are grey areas, I perform small proof of concepts to test solution viability. I have integrated various boundary systems with Oracle Fusion Cloud ERP modules involving Business Event, FBDI, Rest, Soap, ERP adapters, File, Database (PL/SQL), BIP (BI Publisher) extract based patterns. OIC Experience: 8+ years Total IT Experience: 21+ years Skills: 1. Strong hands-on experience in OIC (Oracle Integration Cloud) 2. Oracle PL SQL, Packages, Procedures 3. BI publisher, BICC 4. Rest API and Soap webservice based integrations 5. Created integrations for Oracle Fusion Cloud modules like SCM, Projects, Contracts, AP, AR, CMK, GL etc 6. XML, JSON, XSLT 7. Java, Python