Delmock Technologies Inc. · 13 hours ago
Java Developer
United States
Contract
Remote
Mid, Senior Level
5+ years expDelmock Technologies, Inc. is a leading HUBZone business in Baltimore, known for delivering sophisticated IT and Health solutions. They are seeking an intermediate-level Java Developer to convert existing PySpark codebases into optimized Java-based Spark applications, collaborating with IRS stakeholders to ensure compliance with federal standards.
Information Technology
No H1B
Security Clearance RequiredU.S. Citizen Only
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
Qualification
Required
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)
Proficient with Git
Experience with Maven or Gradle
Experience with unit testing using JUnit or TestNG
Experience working in Agile/Scrum environments
Active IRS MBI Clearance is required to be considered for this position
Preferred
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
Benefits
GFE, e.g. IRS-issued laptop
Company
Delmock Technologies Inc.
DTI Inc.
51-200 employees
Funding
Current Stage
Growth StageLeadership Team
Tony Jones
Chief Strategy Officer (CSO)
Company data provided by crunchbase