Apex Developer Iiii

The Developer Apex (Oracle Application Express) position is responsible for Oracle APEX/Oracle development and administration of easy to use and intuitive database applications, performance tuning, security, auditing, metadata management, capacity planning, connectivity and other data solutions of mission critical application systems. The developer will participate in all phases of the development lifecycle including requirements gathering, specifications development, design, development, testing, implementation, documentation, training, maintenance, upgrade, migrate, and reverse engineering. Develops applications with APEX, SQL, PL/SQL, stored procedures, triggers, transactional modeling, dimensional modeling, normalization, indexing methods, constraints, object usage, Linux shell script and PowerShell.

Tasks and Responsibilities

· Builds and maintains the ongoing operational functionality and efficiency of CPS Energy APEX and Oracle solutions ensuring Development, system performance, availability, reliability, security, recoverability and efficient usage of code and resources.

· Formulates SQL (Structured Query Language) queries, functions and processes as per customization requirement for APEX customers.

· Supports APEX applications and conducts performance tuning for SQL, PLSQL.

· Develops and creates database designs and assists in decreasing response time for APEX reports.

· Designs application frameworks and helps develop Oracle APEX Applications.

· Provides APEX guidance and support to technical staff on application maintenance and SDLC processes.

· Reviews peer code and documents proof of concepts and database schemas.

· Performs the capacity planning required to create and maintain corporate APEX applications, databases, and processing demands.

· Provides all facets of APEX development, administration, quality assurance, and production systems support.

· Provides APEX solutions to solve complex business issues including data processing, data loading, automation improvements, data integrity, and data presentation.

· Conducts unit testing and maintains data extractions, and object models.

· Supports QA activities, test plans, and performance enhancements.

· Diagnoses, troubleshoots and resolves APEX application and database related issues including development, performance, availability, data integrity and application security.

· Performs and automates APEX application and database management, maintenance and data processing activities.

· Develops scripts to perform system maintenance, monitor applications, automate routine tasks, etc.

· Performs as a technology subject matter expert for APEX applications database such as Oracle APEX 5/19/20 (Oracle Application Express) administration/Development, SQL Developer, PL/SQL, Toad, modeling tools, etc.

· Modifies existing databases and database management systems to make changes with appropriate database objects such as code, forms, indexes, tables, partitions, triggers, constraints, stored procedures, large objects, views, etc.

· Works as part of a project team to coordinate APEX database development and determine project scope and limitations.

· Trains users, documents systems and answers questions.

· Specifies users and user access levels for each segment of APEX application and database.

· Reviews project requests describing APEX user’s needs to estimate time and cost required to accomplish projects.

· Administers all APEX objects, code, forms, including tables, indexes, views and sequences, packages and procedures.

· Assists with impact analysis of any changes made to APEX objects and applications.

· Evaluates releases of Oracle APEX and its tools, and third-party products to ensure that the organization is running the products that are most appropriate.

· Troubleshoots issues associated with APEX applications, databases, and tools and provides technical support to application development teams.

· Setup of APEX groups, monitoring, and templates to effectively monitor critical applications.

· Collaboration with various technical/non-technical resources such as citizen developers, application teams and co-workers regarding project work, POCs (Proofs of Concept) and/or troubleshooting exercises.

· Performs changes and inventory using Oracle APEX testing for application and database changes.

· Upgrades Oracle APEX Ecosystem while minimizing downtime to applications.

· Works with Oracle support to resolve issues.

· On-call rotation is required to support 24/7 environment and is also expected to be able to work outside business hours to support corporate needs.

· Performs other duties as assigned

Minimum Qualifications

· Bachelor's degree in Information Systems, Engineering, Computer Science or related field from an accredited university.

· Subject Matter Expert experience in a Production Oracle APEX ecosystem or higher education equivalent.

· Subject Matter Expert experience in Application Administration/Development using Oracle SQL, PL/SQL, and Developer Oracle Application Express (APEX).

· Hands-on experience with Oracle APEX 4.0/4.1/5.0/19/20 (Oracle Application Express) administration/Development.

· Proficiency in analysis, design, development, testing, implementation and maintenance of applications in Oracle Application Express (APEX) and client/server configurations.

· Skilled in writing SQL queries, Views, Materialized views, PL/SQL procedures, functions, packages, triggers, cursors, collections, Ref cursor, cursor variables, System reference cursor, Dynamic SQL.

· Hands on experience in query optimization, performance and tuning (PL/SQL) using SQL Trace, Explain Plan, Indexing, Hints, Bulk Binds, Bulk Collect, Creation of global temporary tables and table partitioning.

· Subject Matter experience in developing External Tables, Joins, Indexes and sequences.

· Worked with third party database tools like TOAD and SQL Developer.

· Excellent knowledge of Oracle APEX 4.0/4.1/5.0/19/20 (Oracle Application Express) administration/Development, Oracle Database, PL/SQL and SQL.

· Expert experience in Database design using Normalization and Entity Relationship Diagrams.

· Expert experience in using built-in database packages (DBMS_SCHEDULER).

· Extensive experience in developing forms based on views, tables and procedures in tabular and form layouts.

· Expert experience in developing both web layout and paper lay out reports in various styles based on the user requirements.

· Strong knowledge of Extraction Transformation and Loading (ETL) processes using UNIX shell scripting, SQL, PL/SQL and SQL Loader.

· Creating users and maintaining their roles and responsibilities.

· Experience in writing Technical design documents and developing unit test documents.

· Strong ability to organize information, manage tasks and use available tools to effectively contribute to a team and the organization.