Big Data Developer (Python/Pyspark) - NJ

Job#: 3031052 Job Description: Big Data Developer (Python/Pyspark) Location: Edison, NJ (Hybrid, 3 days onsite per week) Employment Type: Contract to hire Role Overview We are seeking an experienced Big Data Developer with strong Python expertise and hands-on experience building scalable data processing pipelines. The ideal candidate will have deep knowledge of distributed compute engines such as Apache Spark, modern lakehouse architectures, and real-time streaming platforms. This role is part of a new AI project with the potential for team growth. Key Responsibilities • Design, develop, and optimize data processing pipelines using Apache Spark and PySpark. • Build and maintain batch and streaming data loads for large-scale data platforms. • Implement robust data models and storage layers using Lakehouse/Object Store technologies. • Work with modern table formats such as Apache Iceberg or Delta Lake to support scalable data operations. • Develop SQL-based transformations and ensure data quality, consistency, and performance. • Integrate and manage Kafka for real-time data ingestion and event streaming. • Collaborate with cross-functional teams including data engineering, analytics, and platform engineering. • Participate in architectural discussions, code reviews, and performance tuning. Required Qualifications Experience: 6+ years of experience as a Big Data Developer or Data Engineer. Technical Skills: • Strong hands-on experience with Python for data processing and automation. • Expertise with Apache Spark and PySpark for creating data loads and building scalable ETL/ELT pipelines. • Experience with Data Layer technologies including Lakehouse/Objectstore, Iceberg/Delta, and SQL. • Practical experience with Kafka for distributed messaging and streaming. • A solid understanding of distributed systems, data partitioning, and performance optimization. Preferred Qualifications • Exposure to Agentic AI frameworks such as LangGraph, LangChain, or A2A (Agent-to-Agent). • Experience with cloud platforms (Azure, AWS, or GCP). • Familiarity with data orchestration tools (Airflow, Dagster, Prefect). • Knowledge of CI/CD practices and containerized environments. Compensation & Benefits The pay rate for this position is $63.00 per hour on Apex W2. Please note that the pay rate may be negotiable based on experience and skills. A benefits package is available to eligible employees. This employer is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability. Apex uses a virtual recruiter as part of the application process. Click here for more details. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. 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 here 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. 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 here 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. Apex Systems is part of the Commercial Segment of ASGN Incorporated. NYSE: ASGN 4400 Cox Road Suite 200 Glen Allen, Virginia 23060 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. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. (Do not submit resumes or solicit consultants to this email address). UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Apex Systems.