Senior Software Engineer (AI-Enabled Platforms & Tools)

Description

Senior Software Engineer (AI-Enabled Platforms & Tools)

This is not a maintenance role. This is a reinvention role.

Leidos is seeking a Senior Software Engineer to design, build, and sustain AI-enabled software platforms and developer tools that support modernization of mission-critical systems.

This role moves beyond delivering individual features to owning parts of the system. A Senior Software Engineer makes solid technical decisions, contributes to design work, and provides technical continuity on the team while working closely with senior and principal engineers.

This is a hands-on senior engineering role with meaningful design responsibility and delivery accountability.

This is a role for builders who bias toward action, who believe disruption can coexist with rigor, and who want to apply cutting-edge AI to the problems that matter most.

Mission Context

Our teams develop software systems that support critical national missions across regulated and safety-critical domains.

These systems require:

High reliability, security, and resilience

Thoughtful modernization of legacy architectures

Responsible and governed application of AI capabilities

As a Senior Software Engineer, you will own and evolve key subsystems that enable these outcomes, ensuring solutions are robust, maintainable, and production-ready.

Why Join Us?

Work on real, mission-critical systemsnot experimental demos

Gain hands-on experience with AI-enabled software in production environments

Learn from senior and principal engineers while maintaining meaningful ownership

Build a long-term technical career with a clear and structured growth path

Key Responsibilities

Technical Design & Implementation

Own the design and implementation of complex features or subsystems within established architectures

Translate high-level requirements into detailed technical designs and implementation plans

Develop and maintain high-quality software using modern programming languages such as Python, Java, Go, or TypeScript

Ensure solutions meet defined standards for quality, security, performance, and reliability

AI-Enabled Systems (Applied Design & Execution)

Design and implement AI-enabled features using approved frameworks, models, and patterns, including:

API-based AI integrations

Prompt- and workflow-driven AI capabilities

Retrieval- or data-assisted application components

Evaluate and improve AI-assisted behavior using established testing, validation, and review practices

Apply AI safety, governance, and review mechanisms consistently across owned components

Platform & Cloud Contributions

Design, develop, and support services deployed in cloud-native environments

Contribute to containerized applications, CI/CD pipelines, and operational tooling

Troubleshoot and resolve complex application- and service-level issues

Partner with platform, security, and infrastructure teams to deliver scalable and reliable solutions

Technical Leadership & Collaboration

Provide technical guidance and mentorship to T2/T3 engineers through code reviews, pairing, and design discussions

Act as a go-to engineer for assigned subsystems or domains

Participate actively in cross-team technical discussions and design reviews

Influence engineering best practices through example and constructive feedback

Required Qualifications

Bachelor's degree in Computer Science, Engineering, or a related technical field

8+ years of relevant software engineering experience

Strong proficiency in at least one modern programming language (e.g., Python, Java, Go, TypeScript)

Demonstrated experience designing and delivering complex features or subsystems

Experience with:

Service-based or microservice architectures

RESTful APIs

Software testing and CI/CD pipelines

Familiarity with:

Containers (Docker)

Kubernetes or similar orchestration platforms

Cloud platforms (AWS, Azure, or GCP)

Ability to work independently on complex problems with minimal supervision

Strong communication skills and ability to collaborate across teams

Must be authorized to work in the U.S.

Preferred Qualifications

Professional experience working with AI/ML or LLM-enabled systems

Experience working in regulated, secure, or mission-critical environments

Experience contributing to platform engineering, developer tooling, or system modernization initiatives

We are not hiring followers. This posting reflects a role focused on challenging, meaningful work aligned to Leidos' mission.

Posting Details

For U.S. Positions: 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. Pay Range $107,900.00 - $195,050.00. The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit

Pay and Benefits

Pay and benefits are fundamental to any career decision. That is why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at

Securing Your Data

Beware of fake employment opportunities using Leidos' name. Leidos will never ask you to provide payment-related information during any part of the employment application process, nor will Leidos ever advance money as part of the hiring process. If you suspect a scam, contact and report to local law enforcement and the U.S. FTC.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

#Remote #J-18808-Ljbffr