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Senior API Systems Engineer
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BAE Systems

Senior API Systems Engineer

Sterling, VA, United States

Pay Information Full-Time Salary Range: $149603 - $254317

Apply on jobs.baesystems.com About employer

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Job details

Pay: Pay Information Full-Time Salary Range: $149603 - $254317
Posting language: English
Posted: Nov 10, 2026

Original job description

Job Description BAE Systems is looking for an Senior Systems Engineer skilled in API gateway design & development to join our technical program driving the Model Based Systems Engineering (MBSE) cloud platform that supports collection, management and analysis of digital engineering information in an architecture that provides seamless digital thread and enables tool interoperability, including data structures suitable for AI applications. We are looking for a skilled API Gateway Systems Engineer to design, develop, test, and deploy secure and scalable API gateways. The successful candidate will be responsible for ensuring the reliability, performance, and security of our API gateways, as well as collaborating with cross-functional teams to integrate APIs with various systems and services. This program delivers engineering services for Linux and Windows cloud-based infrastructure as well as sophisticated enterprise computing infrastructure including end-point devices, Cloud services, virtualized applications, and storage systems. Enterprise Computing Engineering services include modern application technology including containerized solutions with orchestrated workflows. Our platform uses a mix of Open Source, Government-off-the-Shelf (GOTS) and Commercial off-the-Shelf (COTS) software and targets cloud-native constructs. The environment offers a secure-by-default configuration, implementing an Infrastructure-as-Code approach, and governance policies. We follow a mostly Agile workflow and adhere to DevSecOps principles. We value fast iteration and a customer-oriented approach while being mindful about security. This is a fast paced, challenging, and career rewarding experience to recruit and develop top talent and solutions on one of the most complex and high-profile programs within the government customer community.

Responsibilities:

Provide IT technical services and technical expertise in systems, technical infrastructure, tools, modeling, external interfaces, and other technical areas
Design, implement, and manage the central entry point for microservices architectures, handling request routing, security, rate limiting, and traffic management.
Design and develop API gateways using industry-standard protocols and technologies.
Create and maintain API documentation, including API definitions, data models, and usage guidelines.
Implement security measures to protect APIs from unauthorized access, data breaches, and other security threats.
Ensure compliance with relevant security standards, regulations, and industry best practices.
Optimize API gateway performance, scalability, and reliability to meet business requirements.
Monitor and analyze API traffic, identifying bottlenecks and areas for improvement.
Integration and Collaboration:
Collaborate with development teams to integrate APIs with various systems, services, and applications.
Work with stakeholders to understand business requirements and translate them into technical solutions.
Develop and execute test plans to validate API functionality, security, and performance.
Identify and resolve defects, ensuring high-quality API gateways.
Deploy and maintain COTS applications in a cloud-based environment
Work with internal engineering resources as well as customer end-users to design and enhance the user interfaces for supported applications, maintaining responsive designs that accommodate challenging technical and functional requirements
Support operations functions, including root cause identification, remediation and documentation (e.g., user guides, ‘how to’ guides, infrastructure diagrams)
Work closely with clients and cross-functional departments on technical issues including software system troubleshooting and maintenance and to communicate project statuses
Monitor system performance
Prepare technical presentations for government and senior leadership
Work effectively in a team environment
Work across infrastructure that contains both Linux and Windows
Communicate effectively with technical and non-technical, management and customer both written and verbally
Utilize robust troubleshooting skills
Instill and apply solid engineering rigor, to include configuration management, testing
Develop/engineer as part of an Agile scrum team

XYZ Required Education, Experience, & Skills We are actively seeking candidates with a minimum of 10 years' relevant experience. Bachelor’s or Master’s degree in a STEM field is required. Specific skills include the following:

At a minimum, meet DoDD 8140 requirements (Security+ CE Certification)
Expertise working with Windows platforms and COTS applications in cloud environments
5+ years of experience with API gateway technologies (Broadcom API experience is strongly preferred)
Strong understanding of API design principles, security best practices, and industry-standard protocols
Proficiency in programming languages such as Java, Python, or C#.
Experience with cloud-based technologies, including AWS, Azure, or Google Cloud Platform.
Familiarity with containerization (e.g., Docker) and orchestration (e.g., Kubernetes).
Excellent communication and collaboration skills.
Strong problem-solving and analytical skills.
Ability to work in an Agile development environment.
Solid engineering rigor
Expert troubleshooting and solutioning skills, including investigating log files to discover root-cause for challenges
Experience with Cloud architecture and system design
Demonstrated experience with system testing and validation
Strong documentation skills

Preferred Education, Experience, & Skills

API-related certifications (e.g., AWS Certified Developer, Azure API Management Certified)
Experience with API management platforms (e.g., MuleSoft, Apigee)
Broadcom API gateway technologies experience
Experience with service mesh technologies (e.g., Istio, Linkerd)
Experience with Model-Based Systems Engineering (MBSE)
Experience with Cloud solution optimization
Experience with ServiceNow
Familiarity with customer system security requirements and processes
Other Cloud experience (Azure, Google, Oracle, IBM)
Integration of virtualized applications and application streaming or layering techniques
Assist with leading and overseeing a total system perspective including technical understanding of relationships, dependencies and requirements of cloud services, infrastructure and security domains
Experience designing APIs such as REST or GraphQL and event-driven systems
Experience with API Gateways, catalogs
Experience integrating complex systems using APIs, message queues, streaming platforms, and ETL pipelines

Pay Information Full-Time Salary Range: $149603 - $254317

Please note: This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience.

Employee Benefits: At BAE Systems, we support our employees in all aspects of their life, including their health and financial well-being. Regular employees scheduled to work 20+ hours per week are offered: health, dental, and vision insurance; health savings accounts; a 401(k) savings plan; disability coverage; and life and accident insurance. We also have an employee assistance program, a legal plan, and other perks including discounts on things like home, auto, and pet insurance. Our leave programs include paid time off, paid holidays, as well as other types of leave, including paid parental, military, bereavement, and any applicable federal and state sick leave. Employees may participate in the company recognition program to receive monetary or non-monetary recognition awards. Other incentives may be available based on position level and/or job specifics. About BAE Systems, Inc.BAE Systems, Inc. is a defense, aerospace, and security company headquartered in Falls Church, Virginia, with more than 40,000 employees worldwide. We serve, supply, and protect those who protect us. As one of the most geographically diverse international defense companies, we deliver a full range of products and services spanning air, land, maritime, space, and cyber, including advanced electronics, intelligence solutions, and dedicated customer support.

Our culture is performance-driven and values-led, built on curiosity, creativity, and collaboration. Purpose isn't a tagline here. It's what drives us. We're developing breakthrough technologies that defend national security and make a lasting impact on our communities and our planet. When you join BAE Systems, you're not just building a career. You're contributing to a mission that truly matters.

This position will be posted for at least 5 calendar days. The posting will remain active until the position is filled, or a qualified pool of candidates is identified.

Apply on jobs.baesystems.com About employer

More about this job

Skills

Linux
Microsoft Windows
Infrastructure as code
Workflow
Microservices
Documentation
Data models
Security threats
Regulatory compliance
Security regulations
Troubleshooting
Monitor system performance
Presentation skills
Security+
API development
Programming languages
Oracle Java
Python
C#
AWS
Microsoft Azure
Google Cloud
Docker
Kubernetes
Communication skills
Collaboration
Problem solving
Analytical skills
Agile development
AWS certification
MuleSoft
ServiceNow
Oracle
GraphQL
Data engineering

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Jobs in the United States