Journeyman Data Engineer
$73K - $132K/yr
Experience developing and maintaining data pipelines using modern programming languages (e.g., Python, Java, or similar). * Experience working with relational and non-relational databases.
$73K - $132K/yr
Experience developing and maintaining data pipelines using modern programming languages (e.g., Python, Java, or similar). * Experience working with relational and non-relational databases.
$73K - $132K/yr
Experience developing and maintaining data pipelines using modern programming languages (e.g., Python, Java, or similar). * Experience working with relational and non-relational databases.
Bethesda, MD · On-site
$64.25 - $83.50/hr
We are seeking a hands-on Cloud Data Engineer to support cloud-based data pipelines, APIs, data ... Experience developing software in modern languages such as Python, Java, or JavaScript/TypeScript.
Bethesda, MD · On-site
$64.25 - $83.50/hr
We are seeking a hands-on Cloud Data Engineer to support cloud-based data pipelines, APIs, data ... Experience developing software in modern languages such as Python, Java, or JavaScript/TypeScript.
Bethesda, MD · On-site
$64.25 - $83.50/hr
We are seeking a hands-on Cloud Data Engineer to support cloud-based data pipelines, APIs, data ... Experience developing software in modern languages such as Python, Java, or JavaScript/TypeScript.
Quick apply
Bethesda, MD · On-site
$64.25 - $83.50/hr
We are seeking a hands-on Cloud Data Engineer to support cloud-based data pipelines, APIs, data ... Experience developing software in modern languages such as Python, Java, or JavaScript/TypeScript.
Bethesda, MD · On-site
$64.25 - $83.50/hr
We are seeking a hands-on Cloud Data Engineer to support cloud-based data pipelines, APIs, data ... Experience developing software in modern languages such as Python, Java, or JavaScript/TypeScript.
Bethesda, MD · On-site
$64.25 - $83.50/hr
We are seeking a hands-on Cloud Data Engineer to support cloud-based data pipelines, APIs, data ... Experience developing software in modern languages such as Python, Java, or JavaScript/TypeScript.
Baltimore, MD · Hybrid
$113K - $136K/yr
Rowe Price is seeking an innovative Data AI Engineer to guide the development and deployment of ... Strong proficiency in Python (preferred), Java, or Scala. * Experience with cloud data platforms ...
Baltimore, MD · Hybrid
$113K - $136K/yr
Rowe Price is seeking an innovative Data AI Engineer to guide the development and deployment of ... Strong proficiency in Python (preferred), Java, or Scala. * Experience with cloud data platforms ...
Baltimore, MD · Hybrid
$113K - $136K/yr
Rowe Price is seeking an innovative Data AI Engineer to guide the development and deployment of ... Strong proficiency in Python (preferred), Java, or Scala. * Experience with cloud data platforms ...
Baltimore, MD · Hybrid
$113K - $136K/yr
Rowe Price is seeking an innovative Data AI Engineer to guide the development and deployment of ... Strong proficiency in Python (preferred), Java, or Scala. * Experience with cloud data platforms ...
Baltimore, MD · Hybrid
$113K - $136K/yr
Rowe Price is seeking an innovative Data AI Engineer to guide the development and deployment of ... Strong proficiency in Python (preferred), Java, or Scala. * Experience with cloud data platforms ...
Baltimore, MD · Hybrid
$113K - $136K/yr
Rowe Price is seeking an innovative Data AI Engineer to guide the development and deployment of ... Strong proficiency in Python (preferred), Java, or Scala. * Experience with cloud data platforms ...
$230K - $240K/yr
JAVA, analytic development experience, and working knowledge of NIFI are highly desired. Desired ... Skilled with big data processing frameworks such as Pig, MapReduce and Spark to scale algorithms ...
$230K - $240K/yr
JAVA, analytic development experience, and working knowledge of NIFI are highly desired. Desired ... Skilled with big data processing frameworks such as Pig, MapReduce and Spark to scale algorithms ...
Annapolis Junction, MD · On-site +1
$230K - $240K/yr
JAVA, analytic development experience, and working knowledge of NIFI are highly desired. Desired ... Skilled with big data processing frameworks such as Pig, MapReduce and Spark to scale algorithms ...
Annapolis Junction, MD · On-site +1
$230K - $240K/yr
JAVA, analytic development experience, and working knowledge of NIFI are highly desired. Desired ... Skilled with big data processing frameworks such as Pig, MapReduce and Spark to scale algorithms ...
Java / Python / Kafka Software Engineer LOCATIONAnnapolis Junction, MD 20701 CLEARANCETS/SCI Full ... Design and optimize Python scripts for data processing * Build and manage Kafka pipelines for real ...
Java / Python / Kafka Software Engineer LOCATIONAnnapolis Junction, MD 20701 CLEARANCETS/SCI Full ... Design and optimize Python scripts for data processing * Build and manage Kafka pipelines for real ...
$77K - $176K/yr
R0241931 Data Engineer The Opportunity: Ever-expanding technology like IoT, machine learning, and ... Experience with Python, SQL, Scala, or Java * Experience with UNIX/Linux, including basic commands ...
$77K - $176K/yr
R0241931 Data Engineer The Opportunity: Ever-expanding technology like IoT, machine learning, and ... Experience with Python, SQL, Scala, or Java * Experience with UNIX/Linux, including basic commands ...
$127K - $152K/yr
Proficiency in Python, Java, or similar high-level programming languages * Experience with ETL/ELT processes, data ingestion frameworks, and pipeline orchestration tools * Familiarity with SQL and ...
$127K - $152K/yr
Proficiency in Python, Java, or similar high-level programming languages * Experience with ETL/ELT processes, data ingestion frameworks, and pipeline orchestration tools * Familiarity with SQL and ...
Java, Scala, Python Developer LOCATIONAnnapolis Junction, MD 20701 CLEARANCETS/SCI Full Poly ... Data Engineer, Distributed Systems Developer, Big Data Developer, API Developer, etc. DEGREE (Level ...
Java, Scala, Python Developer LOCATIONAnnapolis Junction, MD 20701 CLEARANCETS/SCI Full Poly ... Data Engineer, Distributed Systems Developer, Big Data Developer, API Developer, etc. DEGREE (Level ...
$77K - $176K/yr
R0242278 Data Engineer The Opportunity: Ever-expanding technology like IoT, machine learning, and ... Experience with Python, SQL, Scala, or Java * Experience with UNIX / Linux, including basic ...
$77K - $176K/yr
R0242278 Data Engineer The Opportunity: Ever-expanding technology like IoT, machine learning, and ... Experience with Python, SQL, Scala, or Java * Experience with UNIX / Linux, including basic ...
$160K - $170K/yr
The engineer is focused on delivering reliable, accurate data to the end users as well as ensuring ... Java * Scala * NiFi * Ansible * Experience working in Agile environment Salary: $160,000 - $170,000 ...
$160K - $170K/yr
The engineer is focused on delivering reliable, accurate data to the end users as well as ensuring ... Java * Scala * NiFi * Ansible * Experience working in Agile environment Salary: $160,000 - $170,000 ...
Linthicum, MD · On-site
$160K - $170K/yr
The engineer is focused on delivering reliable, accurate data to the end users as well as ensuring ... Patch management and IAVA tracking Python Java Scala NiFi Ansible Experience working in Agile ...
Linthicum, MD · On-site
$160K - $170K/yr
The engineer is focused on delivering reliable, accurate data to the end users as well as ensuring ... Patch management and IAVA tracking Python Java Scala NiFi Ansible Experience working in Agile ...
Linthicum, MD · On-site
$160K - $170K/yr
The engineer is focused on delivering reliable, accurate data to the end users as well as ensuring ... Patch management and IAVA tracking Python Java Scala NiFi Ansible Experience working in Agile ...
Linthicum, MD · On-site
$160K - $170K/yr
The engineer is focused on delivering reliable, accurate data to the end users as well as ensuring ... Patch management and IAVA tracking Python Java Scala NiFi Ansible Experience working in Agile ...
Fulton, MD · On-site
$89K - $110K/yr
Develop data engineering solutions using Python and/or Java. * Seek to continuously develop deep AWS engineering skills that optimize code quality and performance. * Build data pipelines and other ...
Quick apply
Fulton, MD · On-site
$89K - $110K/yr
Develop data engineering solutions using Python and/or Java. * Seek to continuously develop deep AWS engineering skills that optimize code quality and performance. * Build data pipelines and other ...
Annapolis Junction, MD · On-site
$61.25 - $81/hr
... software engineer may be substituted for a degree Experience setting up, deploying, and ... be Java. Experience writing Map / Reduce applications. Experience writing Accumulo iterators and ...
Annapolis Junction, MD · On-site
$61.25 - $81/hr
... software engineer may be substituted for a degree Experience setting up, deploying, and ... be Java. Experience writing Map / Reduce applications. Experience writing Accumulo iterators and ...
$61.25 - $81/hr
... a software engineer * Bachelor's degree in a technical discipline * 4 additional years of ... Primary development language would be Java. * Experience writing Map / Reduce applications.
$61.25 - $81/hr
... a software engineer * Bachelor's degree in a technical discipline * 4 additional years of ... Primary development language would be Java. * Experience writing Map / Reduce applications.
| Aspect | Java Data Engineer | Python Data Engineer |
|---|---|---|
| Required Credentials | Bachelor's in Computer Science, Java certifications | Bachelor's in Computer Science, Python certifications |
| Work Environment | Big data platforms, Java-based tools | Data analysis, scripting, Python-based tools |
| Employer & Industry Usage | Financial services, enterprise systems | Tech startups, data science projects |
| Common Search & Comparison | Yes | Yes |
Java Data Engineers and Python Data Engineers often share similar roles in data processing and engineering. The main difference lies in the programming languages used: Java is common in large-scale enterprise environments, while Python is favored for data analysis and scripting. Both roles require strong programming skills, but their toolsets and typical applications differ based on industry needs.

8.4
Based on 146 frontline employees who took The Breakroom Quiz
56th of 428 rated business services
This Department of War enterprise data and analytics program delivers mission-critical capabilities that enable leaders across the Department to make faster, better-informed decisions using trusted data at scale. Leidos Digital Modernization sector is seeking an experienced Journeyman Data Engineer to support the delivery, enhancement, and adoption of enterprise data and analytics products used across multiple DoD organizations.
In this role, you will work alongside government partners, engineers, and other industry teammates to translate operational and strategic requirements into scalable, production-ready solutions. You will contribute directly to product planning, execution, and continuous improvement-helping ensure capabilities are delivered efficiently, aligned to mission priorities, and positioned for sustained success.
This position offers the opportunity to work on a high-visibility, enterprise program at the intersection of data, analytics, and emerging AI technologies. Ideal candidates are motivated by mission impact, comfortable operating in complex stakeholder environments, and interested in building deep domain expertise while delivering capabilities with real-world national security outcomes.
Primary Responsibilities:
Develop and maintain data ingestion, transformation (ETL/ELT), and data processing pipelines.
Implement data workflows supporting structured and unstructured data across enterprise environments.
Support integration of data pipelines with enterprise data platforms, APIs, and downstream analytics applications.
Assist in development of data models, schemas, and metadata structures aligned to program standards.
Perform data validation, quality checks, and basic data governance implementation.
Support integration of data pipelines into DevSecOps CI/CD workflows.
Troubleshoot data pipeline issues and assist in performance tuning and optimization.
Collaborate with data architects, data scientists, and software engineers to support end-to-end data solutions.
Participate in SAFe ceremonies including sprint planning, backlog refinement, sprint reviews, and retrospectives.
Document data processes, pipelines, and technical implementations.
Basic Qualifications:
Active Top Secret (TS) clearance with SCI eligibility.
Bachelor's degree in Computer Science, Data Science, Engineering, Information Systems, or related technical discipline and 4-8 years of relevant experience OR Master's degree in a related field and 2-6 years of relevant experience.
Experience developing and maintaining data pipelines using modern programming languages (e.g., Python, Java, or similar).
Experience working with relational and non-relational databases.
Experience performing data ingestion, transformation, and processing tasks.
Experience working with data tools and platforms (e.g., Spark, Kafka, Airflow, or similar).
Experience operating within Agile or SAFe environments supporting enterprise systems.
Preferred Qualifications:
Active TS/SCI clearance.
Experience supporting data pipelines across multi-enclave DoD environments.
Experience working with cloud-based data platforms (AWS, Azure, or GCP).
Experience supporting AI/ML data preparation and feature engineering workflows.
Experience working with containerized environments (Docker, Kubernetes).
Familiarity with data governance, metadata management, and lineage concepts.
#ADVANA
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.
Original Posting:April 14, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
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At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.
It services
10,000+ Employees
Reston, VA, US