Python API and ETL Developer, Senior

Company: Booz Allen Hamilton
Location: Mc Lean
Posted on: April 1, 2026

Job Description:

Python API and ETL Developer, Senior The Opportunity: 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 OpenSearch 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 troubleshoot 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 $198,000.00 (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 within 90 days from the Posting Date. Identity Statement 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 interviews and assessments. We reserve the right to take your picture to verify your identity and prevent fraud. Candidate AI Usage Policy AI is a part of our daily work at Booz Allen, and we are committed to the responsible and ethical use of AI tools. However, we want to ensure a fair candidate process based on your own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) or other tools to assist with responses during interviews (whether in-person or virtual) is prohibited unless permission is explicitly provided . Work Model Our people-first culture prioritizes the benefits of collaboration, whether it occurs in person or virtually. To support engagement and effective communication, employees working virtually are generally expected to have their cameras on during meetings. Remote : If this position is listed as remote, there may still be occasions when you are required to work in person at a Booz Allen or customer facility. Hybrid : If this position is listed as hybrid, you will be expected to work from a Booz Allen facility frequently, in alignment with leadership expectations and the needs of the role. You may also be required to work from or visit a customer facility. Onsite : If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local, or international law.

Keywords: Booz Allen Hamilton, Richmond , Python API and ETL Developer, Senior, IT / Software / Systems , Mc Lean, Virginia