Job#: 3031872 Job Description: Senior Oracle Data Warehouse Developer
Location: Charlotte, North Carolina (On-site)Employment Type: ContractDuration: 9 monthsRole Overview
We are seeking a Senior Oracle Data Warehouse Developer to design, build, and optimize enterprise-scale data integration and analytics solutions. This role requires deep Oracle database expertise, including SQL/PL/SQL, performance tuning, and query optimization, along with hands-on experience with Apache NiFi, Python, and Informatica.
Key Responsibilities
- Design, develop, and maintain robust ETL/ELT pipelines across Apache NiFi, Informatica, and Python to ingest, transform, and load data from various sources.
- Implement orchestration, scheduling, parameterization, and dependency management; automate error handling, retries, and observability.
- Build reusable pipeline components and performance-optimized SQL/PL/SQL procedures, packages, and functions.
- Conduct query tuning, table/index design, and workload optimization on large-scale Oracle environments.
- Implement robust data validation frameworks, including row-count, referential integrity, and reconciliation.
- Ensure environments and pipelines meet service-level agreements, scalability, and cost-efficiency targets.
- Partner with analysts, data scientists, and product teams to translate requirements into scalable data solutions.
- Contribute to CI/CD processes using Git, including branching strategies, code review, and automated deployment.
- Mentor junior developers and promote best practices, standards, and design patterns.
Required Qualifications
Experience:- 8+ years of experience in data warehouse development with a strong Oracle database background.
Technical Skills:- Expert-level development of taskflow and mappings in IDMC.
- Expert-level SQL and PL/SQL with deep knowledge of partitioning, indexing strategies, optimizer behavior, statistics, execution plans, and parallel processing.
- Hands-on experience building production pipelines with Apache NiFi.
- Solid Python skills for data transformations, file/API integrations, and utility automation.
- Proficiency with Linux/Unix, shell scripting, and job scheduling on Autosys.
- Strong understanding of enterprise SDLC practices, Git-based workflows, code reviews, and release management.
Education:- Bachelor's degree in Computer Science, Information Systems, Data Engineering, or a related field, or equivalent experience.
Preferred Qualifications
- Experience with Oracle Exadata, SQL*Loader, and bulk load strategies.
- Familiarity with Databricks or Snowflake.
- Knowledge of data governance and catalog tools such as Collibra or Alation.
- Understanding of security, privacy, and compliance controls like encryption and masking.
- Relevant certifications in Oracle, Informatica, NiFi, or cloud platforms.
Compensation & Benefits
The pay rate for this position is between $60.00 and $65.06 per hour.
Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.
Apex uses a virtual recruiter as part of the application process. Click for more details.
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Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click for more details.
Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Apex team member can provide.
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