Back-End Software Engineer Location: Chantilly, VA United States time type Full time Hybrid job requisition id R0224096 Job Description: 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. Join us. The world can't wait. You Have: - 3+ years of experience with software development, including with Python, C++, or C - Experience with orchestration technologies and containerization, including Kubernetes and Docker - Experience creating solutions to complex problems within a collaborative, cross-functional team - Experience interfacing code with logging tools such as Splunk - TS/SCI clearance with a polygraph - Bachelor's degree and 3+ years of experience in software engineering, or 8+ years of experience in software engineering in lieu of a degree Nice If You Have: - Experience with front-end development languages such as Angular and JavaScript - Experience with OpenShift - Experience with Grafana Clearance: Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; TS/SCI clearance with polygraph is required. 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.

• Desenvolver e manter APIs e microserviços utilizando .NET • Integrar sistemas por meio de API Gateway, garantindo segurança, versionamento e roteamento adequado • Criar e otimizar coleções, consultas e pipelines no MongoDB • Analisar requisitos e propor soluções técnicas escaláveis • Participar de code reviews, garantindo qualidade e aderência às boas práticas • Contribuir com a arquitetura dos sistemas • Manter documentação técnica clara e estruturada • Apoiar na evolução de pipelines de CI/CD

• Take ownership of the development and maintenance of backend services using .NET / .NET Core and C# • Work closely with internal client teams to design, build, and refine RESTful APIs and service components • Contribute to architectural decisions, share best practices, and help establish clean, maintainable, and testable codebases • Participate in code reviews and provide constructive feedback to maintain high engineering standards • Identify and resolve performance bottlenecks and support the integration of backend services with third-party systems • Document systems clearly and contribute to the creation and maintenance of technical documentation • Communicate effectively with stakeholders on both client and service sides in German and English

• Develop and maintain systems using COBOL DB2, COBOL CICS, and COBOL Batch, ensuring high performance and process stability • Work with sequential files and VSAM, ensuring data integrity and efficient read/write operations • Create and execute JCL (Job Control Language) to manage jobs and processes in a mainframe environment • Use Roscoe to edit and manipulate code and data on the mainframe • Design and execute test scenarios to validate code quality and ensure deliverables meet expectations • Implement code versioning practices using GIT • Develop headless COBOL programs and integrate them with APIs via z/OS Connect • Work with containers for development and testing of COBOL programs in a DevOps environment • Maintain high standards of quality, documentation, and code clarity — cleanliness, lack of redundancy, and standardization are non-negotiable