Senior Software Engineer – Intelligent Platforms & Agents

Leidos is hiring a Senior Software Engineer / Technical Lead to build and evolve platforms for simulating complex systems, automating operations, and enabling AI- and agent-driven interaction. The role combines hands-on software development with technical leadership, architecture guidance, mentoring, and integration of security and compliance into the development lifecycle.

Responsibilities

Design, develop, and maintain distributed systems and microservices (hands-on coding role)

Build, integrate, and evolve intelligent agents and AI-enabled services using LLMs and automation frameworks

Define and implement patterns for agent orchestration, system interaction, and decision workflows

Drive adoption of Infrastructure as Code, automation, and “controls-as-code” practices

Partner closely with systems engineers and ISSEs to embed requirements and security into platform design and code

Establish development standards for GitHub-based collaboration, testing, and documentation

Mentor mid-level engineers through code reviews, pairing, and technical guidance

Lead integration of CI/CD pipelines, security tooling, and ATO considerations into everyday development

Collaborate with stakeholders to translate mission and operational needs into scalable technical solutions

Contribute to an **“everything as code” approach**, expressing infrastructure, automation, agent behavior, workflows, and operational artifacts as version-controlled, testable code

Define and promote patterns for **expressing intent, requirements, automation, and controls as code**, enabling consistency, traceability, and automation across the development lifecycle

Preferred

Experience building agent-based or autonomous systems in production

Familiarity with AI orchestration frameworks and patterns (e.g., tool-using agents, multi-agent systems)

Experience supporting ATO through automation, documentation, and technical leadership

Active Security+ certification or equivalent IAT Level II certification

Background mentoring engineers and leading technical decision-making

Passion for applying AI and automation to real-world operational challenges

Experience applying “as code” approaches beyond infrastructure (e.g., configuration-as-code, policy-as-code, workflows-as-code, documentation-as-code)

Production Agent-Based Systems

Autonomous Systems

AI Orchestration Frameworks

Tool-Using Agents

Multi-Agent Systems

ATO Support

Technical Documentation

Security+ Certification

IAT Level II Certification

AI Applications

Operational Problem-Solving

Configuration-as-Code

Policy-as-Code

Workflows-as-Code

Documentation-as-Code

Mentoring

Technical Leadership

Technical Decision-Making

Passion for AI Applications

Company

Government and commercial digital and mission solutions provider

Reston, Virginia, USA

https://www.leidos.com/

Founded in 1969

10001+ employees

Qualifications

BS degree and 8+ years of professional software engineering experience

Demonstrated experience designing and building complex or distributed systems

Strong hands-on experience developing backend services and microservices

Experience working with AI/ML systems, including LLM integration in production environments

Strong background in cloud-native architectures and Infrastructure as Code

Experience delivering software in secure, regulated, or compliance-driven environments

Ability to bridge software development, systems engineering, and security disciplines

Strong technical communication and leadership skills

Must have and maintain a Secret security clearance

Experience building agent-based or autonomous systems in production

Familiarity with AI orchestration frameworks and patterns (e.g., tool-using agents, multi-agent systems)

Experience supporting ATO through automation, documentation, and technical leadership

Active Security+ certification or equivalent IAT Level II certification

Background mentoring engineers and leading technical decision-making

Passion for applying AI and automation to real-world operational challenges

Experience applying “as code” approaches beyond infrastructure (e.g., configuration-as-code, policy-as-code, workflows-as-code, documentation-as-code)

Required skills

AI Orchestration, AI/ML Systems, Agent-Based Systems, Backend Services and Microservices, Cloud-Native Architecture, Distributed Systems, Infrastructure as Code, Large Language Model (LLM) Integration, Policy as Code, Secure and Compliance-Driven Software Development, Security Clearance (Secret), Security+ Certification

Preferred skills

2013-09-17, 2025-02-20, 2026-10-28, 2026-10-29, 2026-10-30, 3.9, AI Tools, Build Cover Letter, Chief Executive Officer, Company data provided by, Customize Your Resume, Glassdoor, IPO, James Carlini, Leadership Team, Leidos secures $99 million OTA for cyber operator dashboard, Make your application stand out, Maximize your interview chances, PR Newswire, PRWeb, Post Ipo Debt, Public Company, Recent News, Reston, Virginia, USA, Senior Advisor to the CEO, Thomas Bell, Total Funding, Washington Technology, https://www.leidos.com, unknown

Experience

8+ years