Software Engineer 3

Praxis Engineering; Maryland; On-site; USD 176,000 - 238,000; Full time

Job summary

Praxis Engineering seeks a Software Engineer Principal to transform technology into opportunity for mission-critical government projects. You will design and optimize data ingestion and processing pipelines, leveraging Spark, Airflow, and Python/Java across complex analytics workloads.

The role requires extensive expertise in dataflow design, distributed processing, and strong Linux scripting skills, with TS/SCI w/ Polygraph clearance. Onsite work in Maryland is expected.

Qualifications

• Bachelor of Science degree required.
• 8+ years of related experience.
• Security clearance TS/SCI w/ Polygraph required.
• Experience with Linux, Python and Java development.

Responsibilities

• Design, implement, and optimize data ingress/egress pathways for analytics workloads.
• Develop and maintain data processing pipelines using Spark and Airflow.
• Collaborate with teams to ensure scalable and reliable data processing.

Skills

Java (Programming Language)

Linux

Python Software Development

Scripting

Education

Bachelor of Science

Tools

Apache Airflow

Apache Spark

MySQL

PostgreSQL

Git

Jupyter Notebook

Pandas/Numpy

Job description

Job Qualifications

Java (Programming Language), Linux, Python Software Development, Scripting

Type Of Requisition

Regular

Clearance Level Must Currently Possess

Top Secret SCI + Polygraph

Clearance Level Must Be Able To Obtain

Top Secret SCI + Polygraph

Public Trust/Other Required

None

Job Family

Software Engineering

Skills

Java (Programming Language), Linux, Python Software Development, Scripting

Job Qualifications

Java (Programming Language), Linux, Python Software Development, Scripting

Certifications

None

Experience

8 + years of related experience

US Citizenship Required

Yes

Job Description

SOFTWARE ENGINEER PRINCIPAL

Transform technology into opportunity as a Software Engineer Principal at GDIT. Shape what’s next for mission‑critical government projects while shaping what’s next for your engineering career.

MEANINGFUL WORK AND PERSONAL IMPACT

The Software Engineer shall possess extensive expertise in dataflow design, data transport mechanisms, and Apache Spark based distributed processing. In this role, the Software Engineer shall be responsible for designing, implementing, and optimizing data ingress/egress pathways to ensure efficient, scalable, and reliable processing of the organization’s analytics workloads.

What You’ll Need To Succeed

Bring your engineering expertise along with a drive for innovation to GDIT. The Software Engineer Principal must have:

• Education: Bachelor of Science
• Experience: 8+ years of related experience
• Security clearance level: TS/SCI w/ Polygraph
• Technical Skills

Position Required Skills

• Experience using the Linux CLI and Linux tools
• Experience developing Bash scripts to automate manual processes
• Recent software development experience using Python and Java
• Experience using Apache Airflow (DAG design, scheduling, operators, sensors) to orchestrate, schedule, and monitor complex workflows
• Experience with Distributed Big Data processing engines including Apache Spark
• Familiar with SQL technologies such as MySQL, MariaDB, and PostgreSQL for querying, joining, and aggregating large datasets
• Experience using Jupyter Notebook
• Experience with data wrangling and preprocessing using tools such as pandas, NumPy
• Experience working with structured, semi-structured, and unstructured data such as Parquet, JSON, CSV, XML
• Familiarity with data quality concepts, data validation, and anomaly detection
• Experience with Git Source Control System

Position Desired Skills

• Familiar with HPC Job Scheduling tools including Slurm
• Experience using the Atlassian Tool Suite (JIRA, Confluence)

GDIT IS YOUR PLACE

At GDIT, the mission is our purpose, and our people are at the center of everything we do.

• Growth: AI-powered career tool that identifies career steps and learning opportunities
• Support: An internal mobility team focused on helping you achieve your career goals
• Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
• Community: Award-winning culture of innovation and a military-friendly workplace

OWN YOUR OPPORTUNITY

Explore a career in software development at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your dedication to advancing innovation.

#MD_2026Alumni

#IntelligenceEngineered

The likely salary range for this position is $175,950 - $238,050. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Scheduled Weekly Hours

40

Travel Required

None

Telecommuting Options

Onsite

Work Location

USA MD Annapolis Junction

Total Rewards At GDIT

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post‑tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long‑term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

Our Identity Verification Process

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission‑ready capabilities in AI, cloud, cyber and software development.

Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans