DescriptionAbout Our Company:
Delmock Technologies, Inc. (DTI), is a leading HUBZone business in Baltimore, known for delivering sophisticated IT (Information Technology) and Health solutions with a commitment to ethics, expertise, and superior service. Actively engaged in the local community, DTI creates opportunities for talented residents while maintaining a stellar reputation as an award-winning contractor, earning accolades like the Government Choice Award for IRS (Internal Revenue Service) Systems Modernizations.
Clearance: Active IRS MBI Clearance is required to be considered for this position.
Location: This position is remote.
Role:
Delmock Technologies, Inc. is seeking an intermediate-level Java Developer to convert existing PySpark codebases into optimized Java-based Spark applications. This role includes developing, refactoring, and maintaining scalable data processing solutions developed on the Databricks platform (or similar Spark execution environments).
The developer will collaborate with IRS stakeholders and technical teams to ensure accurate translation of logic, high performance of Spark jobs, and compliance with federal security, privacy, and governance standards.
Responsibilities:
- Convert existing PySpark applications into equivalent, efficient Java Spark implementations.
- Design, develop, and maintain scalable Spark-based data pipelines.
- Implement data processing logic using Java 8+ with best practices in OOP and functional programming.
- Integrate solutions with IRS datasets including IRMF, BMF, and IMF.
- Optimize Spark jobs for performance, maintainability, and cost-efficiency.
- Collaborate across development, data engineering, and architecture teams.
- Troubleshoot and debug Spark workloads in distributed environments.
- Ensure compliance with IRS data handling, security, and governance policies.
Minimum Requirements:
- Bachelor's degree in Computer Science, Information Systems, or related field
- Technical Experience (5+ Years Total Professional Experience)
- Knowledge of IRS Data Systems
- Strong expertise in Java 8+
- Proficiency with Spark Core, Spark SQL, and DataFrame/Dataset APIs
- Familiarity with HDFS, Hive, or HBase
- Experience with S3, Kafka
- Knowledge of Parquet, Avro, ORC formats
- Experience building and supporting ETL pipelines
- Experience with Databricks, or EMR
- CI/CD experience (Jenkins, GitHub Actions)
- Experience with Maven or Gradle
- Experience with unit testing using JUnit or TestNG
- Experience working in Agile/Scrum environments
Preferred/Nice to Have Skills:
- GFE, e.g. IRS-issued laptop
- Experience with PySpark-to-Java Spark translation
- Monitoring tools such as Grafana, Prometheus, Datadog, or Spark logs
- Experience with Databricks, Google Dataproc, or similar Spark ecosystems
- Knowledge of Delta Lake or Apache Iceberg
Recently ranked as high as #3 among HUBZone Companies in a GOVWIN survey, DTI offers a dynamic environment for those passionate about impactful projects, community involvement, and contributing to top-ranking Federal and State Commissionaires project support teams.
At DTI, we balance continuous growth and innovation with a strong dedication to corporate social responsibility. Join our talented team and be part of a company that values both professional excellence and community impact. Explore the exciting career opportunities awaiting you at DTI!
DTI is committed to hiring and maintaining a diverse workforce. We are an equal opportunity employer making decisions without regard to race, color, religion, sex, national origin, age, veteran status, disability, or any other protected class.
