Senior Software Engineer (AI-Enabled Platforms & Tools)

Reston, VA - USA

Monthly Salary: $ 107900 - 195050

Posted on: 21 hours ago

Vacancies: 1 Vacancy

Job Summary

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

Bachelors 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

If youre looking for comfort keep scrolling. At Leidos we outthink outbuild and outpace the status quo because the mission demands it. Were not hiring followers. Were recruiting the ones who disrupt provoke and refuse to fail. Step 10 is ancient history. Were already at step 30 and moving faster than anyone else dares.

Original Posting:

January 29 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 $107900.00 - $195050.00

The Leidos pay range for this job level is a general guideline onlyand 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.

Required Experience:

Senior IC

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 rol...