Hire the Best Oracle Complex Events Processing Specialists

More than 3,000 reviews on G2
Rating is 4.5 out of 5.
4.5/5
of Upwork by G2 peer reviewers
Md Budrul Hasan B.

Dhaka, Bangladesh

$25/hr
5.0
16 jobs

12 Years of total IT experience and work with 27 Customer End including 20 Gov. and Private Bank in Bangladesh, 6 other corporate clients. Vast exposure to IT Infrastructure Management space. Domain expertise on Oracle Database, Security, Solaris (UNIX), SPARC and x86 System. Successfully managed multiple projects involving Implementation and Production Support (Oracle Exadata, Oracle RAC, Oracle Data Guard, Linux Cluster, Solaris Cluster, Oracle Database Appliance, Oracle Advance Security, Audit Vault, Thales nShiled, Thales Payshield, Oracle SUN SPARC and x86 System etc.). Having extensive subject matter expertise in IT Operation Management, Strategic Technology & Developing Cost Effective Solutions to meet customer / business requirements.

  • Oracle Database
  • Oracle Performance Tuning
  • Oracle Data Guard
  • MariaDB
  • MySQL
  • Microsoft SQL Server Administration
  • Solaris Administration
  • Oracle GoldenGate
  • Oracle RAC
  • Oracle Exadata
  • Data Engineering
  • PostgreSQL
  • Oracle WebLogic Server
  • Database Administration
  • Oracle Database Administration
Jorge Vinsencio F.

Caracas, Venezuela

$10/hr
5.0
3 jobs

I'm system engineer with 19 years working at the computer area, I have worked as database administrator at companies of telecommunications, bank and government. I have worked many years with Oracle Database 9i, 10g and 11g, Sqlserver 2000 and Postgresql Database. Leader of database administration Oracle 11g and Sql Server, Monitoring of performance, tuning of sql and processes, Installation of oracle patches, installation and monitoring of Oracle Data Guard configuration, Implementation of backup Strategy with recovery manager (RMAN) and export /import Tools, resolutions of database vulnerabilities, Implementation of Security politics PCI DSS V3 standard. Design of change plans for production environments, Resolutions of issues in production environment, user support, Oracle and Sqlserver Database Migration, Implementation of Oracle database duplicate processes (cloning).

  • Database Administration
  • PostgreSQL Programming
  • Amazon Web Services
  • Oracle PLSQL
  • Oracle Cloud
  • Oracle APEX
  • Oracle RAC
  • Oracle Data Guard
  • Oracle Database Administration
  • Oracle GoldenGate
Getachew G.

Minneapolis, Minnesota

$30/hr
5.0
1 jobs

I am Detail-Oriented, certified Oracle database administrator with more than 15 years of experience managing enterprise level databases. My experience includes database infrastructure setup (Data Guard), database backup using RMAN, database recovery, disaster recovery, database upgrade, database migration, database refreshes, database patching and user management in a collaborative team environment. Worked in a team that has been frequently praised for successfully completing major projects such as migrating enterprise-wide databases between operating system platforms. Reliable team player with a diligent and positive attitude to solve any database related technical problems. Building RAC Databases on Grid Infrastructure RMAN Backup and Recovery Manage Oracle ASM Database upgrade and patching Root Cause Analysis and problem solving Manage SAP databases running on oracle Manage SAP HANA Databases

  • Oracle
  • Database Management System
  • Scripting
  • Disaster Recovery
  • Backup
  • Recover Data Recovery Software
  • Migration
Henry N.

Hanoi, Vietnam

$39/hr
4.9
69 jobs

I am a seasoned Database Administrator with 20+ years of experience managing, tuning, and troubleshooting mission-critical databases across Oracle, SQL Server, PostgreSQL, MySQL, and cloud platforms (AWS, Azure, Google BigQuery). I specialize in performance optimization—identifying issues within minutes and implementing solutions that restore speed, stability, and reliability. My core strengths include: Performance Tuning & Troubleshooting: SQL query optimization, indexing, partitioning, memory/I/O tuning, and real-time issue resolution. Database Administration: Installation, upgrades, backup/recovery, high availability (RAC, Always On, replication), and security hardening. Data Architecture & Warehousing: Designing scalable schemas, star models, and ETL pipelines for BI and analytics. Business Intelligence Integration: Power BI, Tableau, SAP BO, and advanced reporting solutions. I deliver robust, secure, and high-performing database environments that empower organizations to scale confidently and make data-driven decisions. Whether on-premises or in the cloud, I ensure your systems run at peak efficiency with minimal downtime.

  • Oracle Database
  • Database Optimization
  • Database Design
  • PostgreSQL
  • MySQL
  • Database Modeling
  • Database Architecture
  • Data Analytics
  • Oracle Performance Tuning
  • Microsoft Power BI
  • Oracle Database Administration
  • Microsoft SQL Server Administration
  • Data Extraction
  • Database Maintenance
  • Query Tuning
  • Data Analysis Consultation
  • Power Query
  • Performance Optimization
  • Data Engineering
Zeeshan A.

Muscat, Oman

$20/hr
4.5
41 jobs

16+ years delivering scalable solutions across Oracle (certified), PostgreSQL, MySQL, SQL Server, MS Access, and more. Trusted by long-term clients for reliable, high-quality work. Expertise: • PL/SQL, tuning, optimisation, migrations (Oracle + multi-DB) • Advanced Sql queries, procedures and functions development • ETL/ELT pipelines, Python automation • Odoo customization, modules, APIs • Data analytics and processing • Data cleaning and converting to other forms like csv, sql , json etc • Make custom CRUD applications • Biometric sync (ZKTeco/BioTime → Odoo HR/Payroll) • Oracle Forms & Reports development/maintenance; PHPRunner rapid web apps; desktop DB (MS Access, LibreOffice Base) • Legacy Oracle: Install & configure Forms 6i on Windows 11 (unsupported workaround) Results: Zero-touch payroll for 500+ users; 70%+ faster queries. Available for short and long-term partnerships. Message me to discuss your project!

  • Oracle Database
  • SQL
  • Database Administration
  • Microsoft Access
  • MySQL
  • Oracle PLSQL
  • Xlinesoft PHPRunner
  • Oracle Forms
  • Database Programming
  • Stored Procedure Development
  • SQL Programming
  • Data Analysis
  • Data Migration
  • Data Cleaning
  • Looker Studio
Showkat H.

Chattogram, Bangladesh

$30/hr
5.0
61 jobs

Oracle Certified Database Developer with over 6 years of professional experience and 3 years of data analysis expertise, I am dedicated to providing top-notch solutions to meet your database and data analysis needs. Specializing in Database Design, SQL Query Development, PL/SQL programming, and SQL Query Optimization. My commitment to quality, attention to detail, and efficient project management ensures the timely and successful completion of every task. Services I provide: ➤ Database Design and Development: I offer comprehensive database design and development services. Conceptual Design, Logical Design, ERD, EER, and Physical Design of Schema. I specialize in creating efficient and scalable database architectures tailored to your specific needs. I offer my service for Oracle, MS SQL Server, PostgreSQL, MySQL, and Azure databases. ➤ SQL Query: With my expertise in SQL, I can help you extract, manipulate, and analyze data from your database. From simple SELECT statements to advanced JOINs and subqueries, I am proficient in crafting efficient and accurate SQL queries. I pay attention to optimizing query performance and ensuring accurate results, empowering you to gain valuable insights from your data. ➤ PL/SQL Programming: Whether you require stored procedures, triggers, functions, or packages, I can develop custom PL/SQL code to automate tasks, enforce business rules, and improve overall database performance. I follow best practices in coding, ensuring readability, maintainability, and adherence to industry standards. ➤ Oracle Application Development: Technical Support of Oracle EBS Financial and SCM modules, configurations, and integrations. I can assist in identifying and resolving technical issues, whether they involve application errors or system integration challenges. I employ troubleshooting techniques to diagnose and resolve issues promptly, minimizing downtime and maximizing system efficiency. I will develop XML Publisher Report, OTBI Analysis, Dashboard, and Custom Application Development with Oracle Forms, Reports, & APEX. ➤ Data Analysis: Unleash the power of your data with my data analysis services. With expertise in tools like Excel and Python, I can help you uncover valuable insights and make data-driven decisions. From cleaning and transforming data to performing statistical analysis and creating visualizations, I have the skills to extract meaningful information from complex datasets. I work closely with you to understand your analytical goals and provide actionable results to drive business success. Why choose me? ✅ Expertise: I possess a deep understanding of Relational database architecture, SQL, PL/SQL, stored procedures, triggers, functions, Database design and optimization concepts, Oracle Forms, Reports & APEX. ✅ Reliability: I am dedicated to meeting deadlines and exceeding client expectations. ✅ Communication: I maintain clear and prompt communication to ensure transparency throughout the project. ✅ Collaborative Approach: I believe in fostering a strong client-freelancer partnership to deliver the best possible outcomes. ✅ Client Satisfaction: My ultimate goal is your satisfaction, and I strive to build long-term relationships with my clients. Let's discuss how I can assist you in achieving your project goals. Please reach out to me via Upwork messenger, and let's get started on creating exceptional results together. Looking forward to collaborating with you!

  • SQL
  • PostgreSQL
  • MySQL
  • Oracle E-Business Suite
  • Database
  • Oracle APEX
  • Oracle PLSQL
  • Oracle Fusion Applications
  • Oracle Forms
  • Oracle Accounting
  • Oracle Applications
  • Oracle Financials Applications
  • Oracle Reports
  • Oracle Database Administration
  • SQL Programming

How it works

Post a job for freePost a job

Tell us what you need. Create your own job post or generate one with AI then filter talent matches.

Hire top talent fast

Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.

Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

Payment simplified

Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.

Don't just take our word for it

What does an Oracle Complex Events Processing specialist do?

An Oracle Complex Events Processing specialist builds applications that analyze high-volume data streams in real time to detect specific patterns and correlations. This role focuses on writing Event Processing Language queries that filter, aggregate, and merge incoming events as they occur rather than after storage. The specialist configures the server environment to handle continuous event flows and manages the deployment of these logic modules to production domains. They use specialized monitoring tools to verify that event detection rules execute correctly under live traffic conditions.

  • Authors complex Event Processing Language scripts that define how the system filters, correlates, and aggregates streaming data from multiple sources. These scripts act as continuous queries that run against live event streams to identify meaningful patterns or anomalies without waiting for batch processing cycles. The specialist structures this logic to merge disparate data inputs into a unified view for immediate analysis and action.
  • Configures and deploys Oracle Event Processing applications to standalone or multi-server domains using standard management interfaces and command-line tools. This work involves assembling application packages, setting up network input and output channels, and adjusting server configuration files to support required integrations. The specialist ensures the runtime environment correctly connects to event sources and sinks while maintaining stable performance during operation.
  • Administers the event processing server infrastructure by managing domain settings, monitoring active event flows, and troubleshooting runtime issues through Java Management Extensions. They use visual administration consoles to track application behavior and adjust operational parameters when event volumes change or processing delays occur. This ongoing management includes starting and stopping server components, verifying data source connections, and optimizing the system for consistent low-latency response times.

How to hire an Oracle Complex Events Processing specialist on Upwork

Step 1: Post a job

Define your event processing requirements clearly to attract qualified candidates. Use the Job Post Generator powered by Uma™, Upwork's Mindful AI to draft a precise description in seconds. Describe your needs for continuous event pattern detection, and Uma creates a tailored post. You can write a new post, update a saved draft, or reuse an existing post.

  • Specify the need for EPL (Event Processing Language) logic to filter, correlate, and aggregate streaming data.
  • List required experience with Oracle Event Processing Visualizer and wlevs.Admin command-line tooling.
  • Detail the server domain configuration tasks, including config.xml adjustments for network I/O services.

Step 2: Evaluate candidates

Review portfolios for evidence of deployed Oracle Event Processing applications and operational setups. Uma can run instant video interviews and build shortlists with side-by-side comparisons to speed up this review.

  • Look for deployment artifacts that show how the candidate packages applications for standalone or multi-server domains.
  • Check for examples of integration wiring that connect event sources and sinks within the processing runtime.
  • Verify experience using JMX and MBeans for administration and visibility into application behavior.

Step 3: Interview your top choices

Discuss specific technical approaches to continuous query design and server management. Schedule and conduct these interviews within Upwork Messages, which generates an immediate transcript and summary after each session.

  • Ask how they model complex event patterns using SQL-like EPL queries for real-time detection.
  • Request examples of troubleshooting runtime issues using the Visualizer monitoring controls.
  • Discuss their method for configuring data sources to support high-volume event ingestion.

Step 4: Agree on scope and begin work

Finalize deliverables such as EPL logic code, deployment configurations, and operational documentation. Use Upwork Messages and the contract workroom for all communication and project management, while identity verification, payment protection, hourly tracking, and project funds secure the engagement.

  • Define milestones for developing and testing EPL components against specific event stream scenarios.
  • Set clear expectations for deploying the application to the target Oracle Event Processing domain.
  • Include a requirement for knowledge transfer on managing the runtime via supported config tools.

Upwork is not affiliated with and does not sponsor or endorse any of the tools or services discussed in this article. These tools and services are provided only as potential options, and each reader and company should take the time needed to adequately analyze and determine the tools or services that would best fit their specific needs and situation.

The rates and information provided in this article are based on current data and industry sources available at the time of publication. Freelance rates can vary depending on factors such as experience, location, project scope, and market conditions. Readers are encouraged to conduct their own research to confirm current rates and trends, as this information may change over time.

How much does hiring an Oracle Complex Events Processing specialist cost?

$500-$2,500 per project is a typical range for focused Oracle Complex Events Processing specialist work. Final pricing depends on scope, technical complexity, required integrations, source-material quality, revision needs, and the freelancer's experience level.

EPL query development

$500-$1,200/project

Entry-level to mid-level
  • Written EPL queries for event filtering and correlation
  • Validated scenarios for pattern detection accuracy
  • Notes on query logic and expected outputs

Application packaging

$1,200-$2,500/project

Mid-level
  • Packaged application components ready for server installation
  • Updated config.xml settings for runtime behavior
  • Defined event sources and sinks for data flow

Server domain configuration

$2,500-$4,500/project

Mid-level to senior-level
  • Configured standalone or multi-server domains
  • Adjusted server parameters for required integrations
  • Set up JMX and MBeans for operational visibility

Visualizer and monitoring setup

$4,500-$7,000/project

Senior-level
  • Custom views in Oracle Event Processing Visualizer
  • Defined thresholds for operational controls
  • Recorded metrics for ongoing management

Full lifecycle implementation

$7,000-$12,000/project

Expert-level
  • Complete CEP solution with EPL logic and deployment
  • Guide for managing runtime behavior and troubleshooting
  • Training sessions on administration and maintenance

Frequently asked questions

Is hiring an Oracle Complex Events Processing specialist worth it?

For most businesses, yes: hiring an Oracle Complex Events Processing specialist is worthwhile. These experts build continuous event processing logic that detects patterns in streaming data without manual intervention. They configure server domains and manage runtime components to keep high-volume event flows stable.

How do I evaluate Oracle Complex Events Processing specialist candidates?

Review their experience writing EPL queries to filter and correlate event streams in real time. Ask for examples of how they deployed applications to Oracle Event Processing domains using config.xml settings. Strong candidates explain how they used the Visualizer or JMX MBeans to monitor server performance.

What tools does an Oracle Complex Events Processing specialist use?

Specialists write event processing logic in EPL and manage deployments with the wlevs.Admin command-line tool. They configure server settings in config.xml and monitor application behavior through the Oracle Event Processing Visualizer.

What deliverables should I expect from an Oracle Complex Events Processing project?

You receive packaged Oracle Event Processing applications containing the EPL logic for pattern detection. The specialist also submits deployment artifacts and documents the operational setup for managing runtime behavior.