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Principal Integration Engineer

Looking for an opportunity to make an impact?

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. The Leidos National Security Sector (NSS) combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers’ mission to defend against evolving threats around the world.

Your greatest work is ahead!

The Multi-domain Solutions Division (MDS) within the Leidos National Security Sector is seeking a skilled Principal Integration Engineer to join a new cyber security program and play a key role in supporting government-critical systems. You will be part of a program that oversees development, integration, delivery, and operations and maintenance of IT managed security services, which encompasses support to monitor the cybersecurity threat and security posture situational awareness for the enterprise. This opportunity is in anticipation of a future contract award!

What you’ll be doing:

  • Collaborate with cross-functional teams to design and deploy secure, scalable, and high-performing integration solutions.
  • Leverage your expertise in APIs, middleware platforms, and cloud technologies to ensure smooth data flow and system interoperability across the organization.
  • Responsible for conducting analysis of transition planning, intelligence information requirements, and developing architecture baselines. 
  • Duties may include providing research and assistance with implementation of community policies and guidance. 
  • Support business process improvements or systems analysis for missions, systems, and fiscal requirements.  
  • Work to achieve key project/program objectives and deliverables. 
  • Responsible for entire projects or processes spanning multiple technical areas. 
  • Manage large projects or processes with moderate impact on the achievement of sub-family results.  
  • Develop solutions to complex technical issues and problems that impact multiple area or disciplines.
  • Employ ingenuity and creativity to develop new technical solutions and systems in order to achieve functional objectives.  
  • Design, develop, and implement solutions to integrate applications, systems, and services across enterprise environments.
  • Collaborate with software developers, architects, and infrastructure teams to ensure seamless connectivity and data exchange between applications.
  • Configure and optimize middleware, APIs, and communication protocols to enable efficient data flow.
  • Analyze system architectures, data models, and workflows to design secure and scalable integration solutions.
  • Define integration architecture and document data flow diagrams, sequence diagrams, and other technical documentation.
  • Develop and implement data transformation, mapping, and validation processes to ensure data consistency and quality.
  • Monitor and manage API performance, ensuring availability and scalability of APIs across environments.
  • Document APIs and integration points to ensure clear communication with development teams and end-users.
  • Develop integration solutions using cloud-based platforms like AWS Lambda, Azure Logic Apps, and Google Cloud Functions.
  • Optimize and troubleshoot middleware applications to ensure high availability, security, and performance.
  • Develop and execute integration test plans to validate data integrity, functionality, and performance across integrated systems.
  • Conduct unit, functional, and regression testing of integrated solutions to ensure seamless operations.
  • Identify, debug, and resolve integration errors or inconsistencies in data or system behavior.
  • Continuously evaluate and enhance integration processes to improve system efficiency and reliability.
  • Implement security best practices in integration solutions, including data encryption, access controls, and secure communication protocols.
  • Develop and maintain comprehensive documentation, including integration architectures, API specifications, and troubleshooting guides.
  • Participate in project planning, effort estimation, and implementation timelines.
  • Assist senior engineers in reviewing and optimizing integration solutions.
  • Support troubleshooting and resolution of post-deployment integration issues.

What does Leidos need from me?

  • Active Top Secret/SCI (TS/SCI) with Polygraph security clearance required. Must be U.S. Citizen.
  • Bachelor's degree and 8 to 12 years of prior relevant experience or Master's with 6 to 10 years of prior relevant experience. Experience may be considered in lieu of a degree.
  • Understanding of DoD IT security protocols and requirements.
  • Experience with designing and implementing data integration solutions across heterogeneous systems.
  • Proficiency with ETL (Extract, Transform, Load) tools and techniques for data transformation and migration.
  • Hands-on experience with integration and middleware platforms
  • Proficiency in programming/scripting languages
  • Understanding of messaging and communication protocols such as: HTTP, HTTPS, SOAP, REST, FTP, SFTP, and WebSockets.
  • Basic knowledge of cybersecurity principles to ensure the security and privacy of integrated data.
  • Familiarity with cloud platforms (AWS, Azure, Google Cloud) and their respective integration services (e.g., AWS Lambda, Azure Logic Apps).
  • Understanding of CI/CD pipelines and experience.

Favorable if you have:

  • Certifications in relevant technologies (e.g., MuleSoft Certified Developer, Dell Boomi Developer, AWS/Azure Certifications).
  • Experience with Agile/Scrum development methodologies.
     

Original Posting:

March 30, 2025

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $104,650.00 - $189,175.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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Average salary estimate

$146912.5 / YEARLY (est.)
min
max
$104650K
$189175K

If an employer mentions a salary or salary range on their job, we display it as an "Employer Estimate". If a job has no salary data, Rise displays an estimate if available.

What You Should Know About Principal Integration Engineer, Leidos

Are you ready to take your career to the next level? At Leidos in Chantilly, Virginia, we are looking for a talented Principal Integration Engineer to join our innovative Multi-domain Solutions Division (MDS). In this pivotal role, you will help design and deploy secure, scalable integration solutions that support critical government systems. Leveraging your expertise in APIs, middleware, and cloud technologies, you'll ensure smooth data flow and system interoperability while collaborating with cross-functional teams of software developers and infrastructure experts. You'll conduct analyses of transition planning and intelligence requirements and provide assistance with community policies. In addition, you’ll be managing large projects and developing solutions to complex technical challenges that span multiple disciplines. If you’re passionate about enhancing cybersecurity efforts and ready to make an impact in the defense sector, this is the opportunity for you! You will be instrumental in achieving key project objectives while maintaining high availability and performance in integrated systems. Your creativity will shine as you optimize middleware applications and implement security best practices in integration solutions. At Leidos, we emphasize doing the right thing for our customers, our people, and our communities, while contributing to the success of our defense and intel missions. Join us, and let's tackle the evolving threats together while you ensure data integrity and quality across our cutting-edge cyber security program. Your greatest work is ahead—let's get started together!

Frequently Asked Questions (FAQs) for Principal Integration Engineer Role at Leidos
What qualifications are needed for the Principal Integration Engineer position at Leidos?

To qualify for the Principal Integration Engineer role at Leidos, candidates must possess an active Top Secret/SCI clearance and a Bachelor’s degree with 8 to 12 years of relevant experience or a Master’s degree with 6 to 10 years of experience. Experience may substitute for education. You should also have a strong understanding of DoD IT security protocols and a background in designing and implementing data integration solutions across diverse systems.

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What are the primary responsibilities of a Principal Integration Engineer at Leidos?

As a Principal Integration Engineer at Leidos, your key responsibilities will include collaborating with cross-functional teams to design secure integration solutions, managing large-scale integration projects, optimizing middleware performance, and ensuring data security. You'll conduct system analyses, develop integration test plans, and resolve integration errors, all while supporting crucial cybersecurity efforts.

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What technologies should a Principal Integration Engineer at Leidos be familiar with?

Candidates for the Principal Integration Engineer position at Leidos should be proficient in programming languages, ETL tools, and integration/middleware platforms. An understanding of messaging protocols such as REST and SOAP, as well as cloud platforms like AWS and Azure and their respective integration services, will be essential in ensuring effective system communication and data management.

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What is the role of cloud technologies in the Principal Integration Engineer position at Leidos?

In the Principal Integration Engineer role at Leidos, cloud technologies play a vital part in enabling scalable and efficient integration solutions. You will develop and implement solutions using cloud-based platforms such as AWS Lambda and Azure Logic Apps, optimizing API performance and facilitating data flow across various environments.

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What is the expected salary range for a Principal Integration Engineer at Leidos?

The salary range for the Principal Integration Engineer role at Leidos is between $104,650 and $189,175. Factors influencing compensation include the candidate's responsibilities, education, experience, skills, and alignment with market data. This pay range serves as a guideline and not a guarantee of compensation.

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Common Interview Questions for Principal Integration Engineer
Can you explain your experience with middleware platforms as a Principal Integration Engineer?

Certainly! When discussing your experience with middleware platforms in an interview, focus on specific platforms you've worked with, like MuleSoft or Dell Boomi. Describe your role in leveraging these tools for integration tasks and the impact your work had on the project's success.

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How do you manage data integrity during integration processes?

To effectively manage data integrity during integration processes, I prioritize thorough testing and validation of data transformation methods. Highlight your experience with developing data validation processes and using integration test plans to catch discrepancies early in the integration pipeline.

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What strategies do you use for troubleshooting post-deployment integration issues?

I approach post-deployment troubleshooting by taking a systematic route: I start with identifying error patterns, analyzing logs, and applying knowledge to debug the root causes. Discuss how proactive monitoring and establishing clear communication with development teams also play significant roles in efficient problem resolution.

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Can you describe a complex technical problem you solved as a Principal Integration Engineer?

When discussing a complex technical problem you solved, use the STAR method (Situation, Task, Action, Result) to structure your response. Detail the situation, the technical challenges involved, the actions you took to resolve them, and the strategies that led to a successful outcome.

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Why is understanding cybersecurity principles important for a Principal Integration Engineer?

Understanding cybersecurity principles is crucial because integration engineers often work with sensitive data across various systems. Bring attention to how your knowledge of data encryption, access control, and secure communication protocols ensures the privacy of integrated data and compliance with industry standards.

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How do you ensure a seamless collaboration with software development teams?

Seamless collaboration with software development teams can be achieved through clear communication and regular check-ins. Highlight your experience in adapting and aligning integration solutions with their needs, cultivating a team mentality, and using efficient version control tools to minimize friction during development.

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What integration testing methodologies do you prefer?

I prefer utilizing a combination of unit testing, functional testing, and regression testing methodologies. When asked about this, share how each testing type provides unique benefits in ensuring data integrity, functionality, and performance in integrated systems.

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What experience do you have with CI/CD pipelines?

In response to questions about CI/CD pipelines, you can describe your hands-on experience with integrating automated deployment strategies and your role in implementing CI/CD practices to enhance deployment efficiency and ensure consistent application performance.

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How do you prioritize project objectives as a Principal Integration Engineer?

Prioritizing project objectives involves assessing the alignment of each task with overall project goals, the level of resources required, and stakeholder expectations. Discuss your methods for evaluating these factors and how effective prioritization can deliver successful outcomes within tight timelines.

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What tools do you use to document integration processes?

I use a combination of tools such as Confluence and Markdown for creating easy-to-read and comprehensive documentation. When interviewing, specify your documentation practices, including how you provide clear communication through data flow diagrams and API specifications.

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Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. At Leidos, our mission is to make the world safer, healthier, and mor...

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March 31, 2025

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