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With over three decades of experience in the IT industry since 1990, my expertise spans various domains. I have a strong background in software development, particularly in Python-Django and Oracle Forms/Reports PL/SQL. Additionally, I possess extensive knowledge in Oracle Database Administration, both in RAC and standalone configurations, on Unix, Aix, and Linux platforms. My skills encompass database and OS performance tuning, proficiently troubleshooting bottlenecks related to CPU, memory, I/O, network, and interconnects. I provide recommendations on hardware resizing/reconfiguration to optimize system performance effectively. Furthermore, I excel in automating system and Oracle administration through the implementation of shell scripts. In addition to my database expertise, I have hands-on experience in designing, administering, and monitoring storage solutions such as IBM DS8300, EMC VNX 5300, Hitachi Hus VM, and NetApp 3020 SANs and NAS. I am well-versed in Symantec NetBackup administration, ensuring reliable data backup and recovery procedures. Moreover, I have successfully prepared RFPs for hardware acquisition, including VTL, SAN/NAS Storage, Servers, and have played a key role in selecting software/hardware solutions. I have also contributed to building Disaster Recovery sites for systems, databases, and storage, ensuring robust business continuity measures. Throughout my career, I have demonstrated a comprehensive skill set in software development, database administration, performance tuning, storage management, and disaster recovery planning, making me a valuable asset to any IT organization.

We help startups, SaaS teams, and enterprises build secure, scalable, and cost-efficient cloud infrastructure using modern DevOps and SRE practices. With Infrastructure as Code (Terraform, Ansible), we automate provisioning, configuration, and environment management so deployments become repeatable, predictable, and easy to scale. We design and operate multi-cloud platforms across AWS, Azure, and GCP, tailored to business requirements and budget, with a strong focus on performance, reliability, and cost optimization. For containerized workloads, we implement and manage Kubernetes and OpenShift (including EKS/GKE/AKS) using best practices such as Helm, ingress controllers, autoscaling, upgrades, and secure cluster operations. To streamline delivery, we build robust CI/CD pipelines using GitHub Actions, GitLab CI, and Jenkins—covering build, test, security scans, deployments, approvals, and rollbacks. We also implement Docker containerization to ensure consistent application packaging and fast, reliable releases. For production readiness, we set up complete observability with Prometheus + Grafana, centralized logging with ELK/EFK, and distributed tracing using OpenTelemetry, providing actionable alerts and clear visibility into system health. On the security side, we handle SSL/TLS automation, secrets management, Docker hardening, network security, and least-privilege IAM. We strengthen reliability with backup and recovery strategies, incident runbooks, monitoring coverage, and operational readiness checklists. Have custom requirements? Tell us what you need, and our team will customize the implementation to match your goals and budget. Core Capabilities Infrastructure as Code: Terraform, Ansible, clean state management, repeatable environments Kubernetes & Containers: Kubernetes/OpenShift, EKS/GKE/AKS, Docker, Helm, ingress, autoscaling, upgrades CI/CD Automation: GitHub Actions, GitLab CI, Jenkins (build → test → scan → deploy → rollback) Observability: Prometheus, Grafana, ELK/EFK, OpenTelemetry, actionable alerting Security: SSL/TLS automation, secrets management, Docker hardening, network security, IAM Best practices Reliability: backup/recovery, runbooks, operational readiness, monitoring completeness Web & Reverse Proxy: Nginx, Apache, Caddy, Traefik, WebSockets, performance tuning Clouds & Tooling Clouds: AWS, Azure, GCP, DigitalOcean, Hetzner/OVH, and other VPS providers Databases: PostgreSQL, MySQL, MongoDB, Redis, MSSQL Tools: Docker, Kubernetes, Terraform, Ansible, Helm, GitHub Actions, GitLab CI, Jenkins If you share your current setup and goals (speed, stability, security, or cost reduction), we can propose a practical plan and deliver end-to-end implementation with clear outcomes.

I am a Senior Software Engineer with over 9 years of industry experience. As a Fullstack Developer with a strong focus on backend development, I bring broad expertise across backend, frontend, DevOps, and system design. I am proficient in Java and experienced with Spring Boot, Spring Cloud, Spring AI, Hibernate, JUnit, Mockito, K6, Thymeleaf, React, Vue, Angular, Tailwind, Bootstrap, Docker, Kubernetes, Helm, GCP, AWS, Azure, and VPS. I have worked extensively with various servers and databases, including Postgres, MySQL, Oracle DB, SQL Server, MongoDB, Redis, Elasticsearch, Sqlite, BigQuery, Tomcat, Jetty, Undertow, Netty, Nginx, Apache, Node, ActiveMQ, RabbitMQ, Kafka, PubSub, Apollo, Keycloak, LDAP, Eureka, Consul, Vault, Sleuth, Minio, Alfresco, and Jenkins. My toolset also includes GitHub, GitLab, BitBucket, Jira, Redmine, Trello, Notion, Figma, SSH, TMux, Git, NVim, VSCode, Cursor, Windsurf, IntelliJ, DBeaver, Insomnia, and Chrome. The most common projects I work on include API services, web applications, and enterprise applications, leveraging architectures such as monolith, modulith, and microservices. I am experienced with multiple communication protocols, including REST, GraphQL, SOAP, gRPC, JSON-RPC, XML-RPC, WebSocket, Webhooks, Polling, and OpenAPI. I am open to discussions and project collaborations. Feel free to connect and hire me. Thanks & Warm Regards,

I have been working as a Cloudera Administrator in Telecommunication/Financial industry. I am installing/configuring/monitoring production clusters around 15 and 18 node clusters. I am available for install/configure/fixing issues and tuning your clusters. I have followings skills and experience: Cloudera Administrator Linux Administrator Crontab scheduling Shell Scripting Mysql MariaDB HDFS, Impala Hadoop, SQL , ETL,, Tera Data , RDBMS, NoSQL (MongoDB), Warehousing, SSRS, Data migration from one source to another. Cloudera Hadoop, Sqoop, Flume, HDFS, Big Data technologies. Performance monitoring Impala, Spark and hive jobs HDFS replication management Enable HA on masternodes and HDFS Worked on upgrading cluster, commissioning & decommissioning of Data Nodes, Name Node recovery, capacity planning, and slots configuration. Cluster installation from scratch Add services Configure services Created CM dashboard for navigating services. CM User access management. Resolving bad and concerning health issues. Hands on experience on Redhat 7.5 Hands on experience with mysql (mariadb) for services configuration Configured cloudera navigator for audit logs Enabled HDFS HA Rebalance HDFS data on all hosts LDAP configuration on Cloudera Manager and Hue for business users login. Configure email alerts on service bad health Linux System Administration on RHEL Cloudera Administration on production server Resolving Cluster Health Issues. Configuring services in cluster. Enable and disable nodes for performing hardware activity Writing shell scripts Adding and configure new data node. Resolving bad health issues Crontab job scheduling Schedule spark and sqoop jobs using shell scripts Strong hands-on experience working with Impala, Hive, HDFS, Spark and YARN Strong hands-on experience with LDAP configuration. Strong hands-on experience with Master nodes HA and HDFS and other services. Adding and removing host from cluster. Experience with configuring dedicated cluster for KAFKA. Adding and removing dataodes in a secure way. Installed and Configured ELK and Configured Elasticsearch with Hadoop cluster for fast performance. Configured Cloudera Navigator Mysql user management Sentry user management Linux user management Experience in implementing and ongoing administrating infrastructure including performance tuning. Troubleshooting Spark jobs. Adding custom dashboards of Cloudera services health and memory charts. Hue user management Role assignment LDAP user management ELK use case Installation and configuration Elasticsearch, Kibana, and Logstash on test & production environment Extracted logs using Grok pattern Created Kibana dashboard. Integrated ELK with hadoop cluster for fast performance. I can do all that at very reasonable costs. Feel free to discuss your project.

Greetings: ✅ Top Rated Plus (Top 3% on Upwork) ✅ 9,000+ Production Hours Logged ✅ 100% Job Success Score ✅ 8+ Years of Enterprise Architecture & Domain Data Engineering Experience Are slow database queries, complex data pipelines, or legacy Java and .NET systems holding back your application's performance? I am a Senior Software Engineer specializing in Java backend architecture, .NET Core microservices, and enterprise Data Management. Having delivered over 9,000 hours of mission-critical development across major IT firms and global enterprise clients, I transform complex backend codebases into fast, secure, and maintainable systems. Core Technical Stack: ✅ Modern Java & Microservices: Java (8 to 21), Spring Boot, Spring Cloud, Hibernate / JPA, RESTful APIs, OpenAPI/Swagger, JUnit/Mockito, Maven. ✅ .NET & API Engineering: C# .NET Core, ASP.NET Web API, SOAP Services, JWT/RBAC Security, Microservices Architecture. ✅ Data Management & Database Tuning: PostgreSQL, MySQL, Oracle, NoSQL (MongoDB, DynamoDB), custom schema indexing, execution plan tuning, and query diagnostics. ✅ Complex Data & Geoscience Connectors: End-to-end processing of heavy 3D Grid data, custom interoperability connectors across SLB Petrel, Studio, and Halliburton DSG platforms, domain standards (e.g., RESQML V2), and C++/Java native integrations via Apache Thrift. ✅ Legacy System Modernization: Migration and maintenance of legacy enterprise systems (EJB, Servlets, JSF, Struts, Swing, JavaFX, JDBC). ✅ Full-Stack & DevOps: Angular, React, PrimeFaces, Tailwind CSS, Docker, Git workflows, and remote Linux deployments. Featured Applications & Projects Built ✅ Inter-Platform E&P Data Connectors: Architected secure data integration pipelines to transfer heavy 3D Grid models, custom entities, and spatial datasets seamlessly between SLB Petrel, Studio, and Halliburton DSG ecosystems, introducing custom security, entity validation, and data mapping. ✅ Innovation Management Platform (Skild Inc.): Designed and scaled backend event-processing services, user registration workflows, and high-concurrency APIs for large-scale production events. ✅ Shipment & Tracking Management System: Architected real-time tracking microservices, logistics databases, and RESTful integration endpoints for global shipment management. ✅ EDOC Information Management System: Built a secure, high-throughput document tracking and enterprise records management platform with role-based access control. ✅ Telecom Tower Management System: Engineered backend infrastructure for monitoring tower assets, spatial grid data, operational status, and maintenance workflows. ✅ High-Throughput Data Parsers: Developed standalone processing engines for binary formats, RESQML files, and complex spatial grid structures. Whether you need a full codebase refactor, complex data connectors, database query optimization, or an end-to-end Spring Boot service built from scratch, I can help. Click "Invite to Job" on the right side of this page to discuss your project requirements!

🏆 Top Rated Plus | 14,000+ Hours | 100% Job Success Score | 5★ Feedback 💼 12+ years of Experience | Java · Spring Boot · AWS · DevOps · AI Integration 🚀 FinTech · Banking · Enterprise SaaS · Cloud-Native Systems Over the past 12+ years I have been building production-grade Java backends, scalable cloud infrastructure, and enterprise systems for FinTech, banking, healthcare, and SaaS businesses. Over the last two years I have been helping businesses integrate Generative AI, LLMs, RAG pipelines, and AI workflow automation into production backend systems. I specialize in Java, Spring Boot, Microservices, AWS, PostgreSQL, MongoDB, Docker, Kubernetes, and AI integrations using Claude API, OpenAI, and LangChain - helping companies build reliable, scalable, and production-ready systems that go beyond demos and actually work under real load. 𝐖𝐡𝐚𝐭 𝐈 𝐒𝐡𝐢𝐩 ✔ Production-grade Java backends: Spring Boot, Spring Security, microservices, event-driven systems ✔ Scalable cloud infrastructure: AWS (EC2, ECS/EKS, RDS, Lambda), Kubernetes, zero-downtime deployments ✔ End-to-end DevOps: CI/CD pipelines, Terraform IaC, Docker containerization, GitOps ✔ AI-powered backend features: LLM integrations, RAG pipelines, AI agents, workflow automation ✔ Database design and optimization: PostgreSQL, MySQL, MongoDB, Redis, caching strategies ✔ Full-stack delivery: React/Vue3 frontend integration, REST API design, OAuth2/JWT security 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝟭. 𝐉𝐚𝐯𝐚 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Java 17/21, Spring Boot, Spring Security, Spring Cloud, Spring MVC, Hibernate, Quarkus Microservices architecture, event-driven systems (Kafka, RabbitMQ), REST APIs JWT/OAuth2/RBAC security, API Gateway design, multi-tenant SaaS architecture Legacy modernization, Java 8 → 17/21 migrations, codebase refactoring 𝟮. 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬 AWS (EC2, ECS/EKS, RDS, S3, Lambda, IAM, CloudWatch, Route53, ALB) Kubernetes, Helm, ArgoCD - cluster management, autoscaling, zero-downtime deployments Docker, multi-stage builds, container registry management Terraform, CloudFormation - Infrastructure as Code CI/CD: GitHub Actions, Jenkins, GitLab CI/CD, Azure DevOps 𝟯. 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 & 𝐃𝐚𝐭𝐚 PostgreSQL, MySQL, Oracle, MongoDB, Redis Advanced query optimization, schema design, replication, caching strategies JPA/Hibernate ORM, connection pool tuning, performance tuning under production load 𝟰. 𝐀𝐈 & 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐯𝐞 𝐀𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 ✔ LLM API Integration -- Anthropic Claude, OpenAI for production backend features ✔ RAG (Retrieval-Augmented Generation) pipelines -- document intelligence, intelligent search ✔ LangChain -- AI-driven workflow automation and conversational backends ✔ AI Agents & Agentic Workflows ✔ AI Chatbot Development ✔ Prompt Engineering & LLM Optimization ✔ n8n Workflow Automation -- connecting AI services and business systems ✔ AI-assisted development -- Cursor AI, Claude Code, GitHub Copilot daily workflow 𝟱. 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 & 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞 Spring Security, OAuth2, JWT, RBAC across regulated FinTech and healthcare environments HIPAA-compliant system design, secure API architecture, data encryption Audit logging, access control, compliance-grade transaction handling 𝟲. 𝐌𝐨𝐛𝐢𝐥𝐞 & 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 Android development — Java, Kotlin, Android SDK React, Vue3 frontend integration for full-stack delivery 𝐒𝐞𝐜𝐭𝐨𝐫𝐬 𝐈'𝐯𝐞 𝐁𝐮𝐢𝐥𝐭 𝐅𝐨𝐫 • FinTech & Banking: Core banking systems, payment platforms, lending administration, regulatory compliance • Healthcare: HIPAA-compliant microservices, healthcare platform modernization • E-Commerce: Scalable backends, payment gateway integration, inventory systems • Enterprise SaaS: Multi-tenant platforms, workflow automation, API-first architecture • AI Products: RAG systems, LLM-powered backends, intelligent automation pipelines 𝐖𝐡𝐚𝐭 𝐈'𝐯𝐞 𝐁𝐮𝐢𝐥𝐭 • Royal Caribbean International -- Java, Spring Boot, PostgreSQL, RESTful APIs at enterprise scale • FOCUS (National Banking Platform) -- Hibernate, Spring MVC, JasperReports, nationwide loan administration • KredX -- multi-tenant financial trading platform, approval workflows, asset classes • GAP -- e-commerce backend, React, MySQL, Redis, payment gateway integration 𝐑𝐞𝐜𝐞𝐧𝐭 𝐄𝐧𝐠𝐚𝐠𝐞𝐦𝐞𝐧𝐭𝐬 • AI/ML Infrastructure (Active) -- GPU workloads, MLOps pipelines, AWS, real-time AI deployment • Event-Driven Banking Platform ⭐ 5.0 -- Java, Quarkus, async event processing, production FinTech • Java 8 → 11 Migration ⭐ 5.0 -- legacy modernization, long-term enterprise engagement 🚀 Whether you need a Senior Java engineer, a DevOps partner, or someone who can integrate AI into your backend and keep it running in production -- I'm the one who covers all three. 📩 Send me a message. Let's build it right.