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Python API and ETL Developer, Senior

Job in McLean, Fairfax County, Virginia, USA
Listing for: Booz Allen Hamilton
Full Time, Part Time position
Listed on 2026-02-01
Job specializations:
  • Software Development
    Software Engineer, Backend Developer
Salary/Wage Range or Industry Benchmark: 86800 - 198000 USD Yearly USD 86800.00 198000.00 YEAR
Job Description & How to Apply Below

Your growth matters to us - explore our career development opportunities.

Overview

As a back-end developer, you know that a good site or system needs the right combination of clean code, APIs, analytics, and infrastructure to develop a user-focused solution. We’re looking for an experienced back-end developer with the software engineering skills it takes to identify potential risks, contribute to solution development, and create efficient and effective systems for our clients.

As a back-end developer at Booz Allen, you’ll use the latest architectural approaches and open-source frameworks and tools to deliver solutions. Using your software engineering experience, you’ll work with the development team to create custom tools, systems, and sites with consistent performance and scalability.

In this role, you’ll make a mission-forward impact as you further your skillset and career. Work with us as we shape systems for the better. Due to the nature of work performed within this facility, U.S. citizenship is required.

Join us. The world can’t wait.

You Have
  • 6+ years of experience in backend software development, including developing unit tests
  • 3+ years of experience working with relational databases such as PostgreSQL
  • 3+ years of experience with data modeling, ETL, and data validation techniques
  • 3+ years of experience in building RESTful APIs
  • 3+ years of experience with containerization, such as Docker, and cloud platforms, such as AWS
  • 3+ years of experience with code reviews, design discussions, and agile ceremonies
  • 3+ years of experience with version control, such as Git, and CI/CD pipelines
  • Experience in machine learning
  • Ability to obtain and maintain a Public Trust or Suitability/Fitness determination based on client requirements
  • Bachelor s degree
Nice If You Have
  • 3+ years of experience designing, developing, and maintaining scalable backend APIs and services
  • 3+ years of experience working with Open Search and large datasets to support data-driven applications
  • 3+ years of experience with writing clean, maintainable, and well documented Python or Django code
  • 3+ years of experience ensuring code quality with testing frameworks such as pytest or unittest
  • 2+ years of experience implementing secure and efficient data processing pipelines
  • 2+ years of experience collaborating with frontend engineers to define API requirements
  • 2+ years of experience integrating with third-party services and internal data sources
  • 2+ years of experience monitoring application performance and troubleshooting production issues
  • 2+ years of experience helping maintain infrastructure-as-code for backend services
Vetting

Applicants selected will be subject to a government investigation and may need to meet eligibility requirements of the U.S. government client.

Compensation

At Booz Allen, we celebrate your contributions, provide you with opportunities and choices, and support your total well-being. Our offerings include health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, work-life programs, and dependent care. Our recognition awards program acknowledges employees for exceptional performance and superior demonstration of our values. Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in Booz Allen’s benefit programs.

Individuals that do not meet the threshold are only eligible for select offerings, not inclusive of health benefits. We encourage you to learn more about our total benefits by visiting the Resource page on our Careers site and reviewing Our Employee Benefits page.

Salary at Booz Allen is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements. The projected compensation range for this position is $86,800.00 to $ (annualized USD). The estimate displayed represents the typical salary range for this position and is just one component of Booz Allen’s total compensation package for employees.

This posting will close…

Position Requirements
10+ Years work experience
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