Senior Software Engineer
Company: Leidos
Location: Clarksburg
Posted on: April 1, 2026
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Job Description:
We are seeking an experienced Senior Software Engineer with a
strong backend focus and full-stack capabilities to design, build,
test and maintain scalable software systems. This role will play a
key part in architecting backend services, developing APIs, and
collaborating with development team to deliver reliable,
high-performance applications. The ideal candidate has deep
experience in backend systems, cloud-native architectures, testing,
and modern CI/CD practices and tools, while also being comfortable
contributing across the full stack when needed. Key
Responsibilities: Design and develop scalable backend services,
APIs, and microservices. Create and maintain full-scale testing
architecture plans and system design for software application.
Build, test, and maintain high-performance, secure, and reliable
applications. Collaborate with product managers, designers,
customers, and engineers to deliver new features. Write clean,
maintainable, well-tested code following best practices. Review
code and mentor junior engineers. Optimize applications for
performance, scalability, and reliability. Support CI/CD pipelines
and cloud infrastructure for application. Participate in Agile
ceremonies including sprint planning, standups, and retrospectives,
and PI planning events. Troubleshoot production issues and
implement long-term solutions. Functions as a technical expert
across multiple project assignments. Required Qualifications:
Bachelor’s degree in Computer Science, Software Engineering,
related field, or equivalent experience. 8–12 years (or 6-10 years
with Master’s Degree) of professional software development
experience. Strong backend development experience in languages such
as: Java Spring Boot Hibernate Hibernate using native queries
Strong automated testing experience in end-to-end testing,
regression testing, integration testing, etc Experience building
RESTful APIs and microservices architectures. Strong knowledge of
relational databases (PostgreSQL, MySQL, etc.) Experience with
cloud platforms such as AWS, Azure, or Google Cloud. Experience
with agile project management software such as Jira, Confluence,
etc. Familiarity with containerization technologies like Docker and
Kubernetes. Experience with version control systems such as Git.
Experience with CI/CD pipelines such as Gitlab. Strong
understanding of software architecture, design patterns, and system
scalability. US Citizenship Active Top Secret security clearance
Preferred Qualifications: Experience with frontend frameworks
(React, Angular, or Vue). Knowledge of infrastructure-as-code tools
(Terraform, CloudFormation). Experience with observability tools
(Datadog, Prometheus, Grafana). Key Competencies: Strong
problem-solving and analytical thinking. Passion for quality
control and improving engineering practices. Excellent
communication and collaboration skills. Ownership mindset and
accountability for deliverables. If you're looking for comfort,
keep scrolling. At Leidos, we outthink, outbuild, and outpace the
status quo — because the mission demands it. We're not hiring
followers. We're recruiting the ones who disrupt, provoke, and
refuse to fail. Step 10 is ancient history. We're already at step
30 — and moving faster than anyone else dares. Original Posting:
March 13, 2026 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 $131,300.00 -
$237,350.00 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.
Keywords: Leidos, Pittsburgh , Senior Software Engineer, IT / Software / Systems , Clarksburg, Pennsylvania
