Senior Software Engineer/Tech Lead - R142

United States·Herndonfull-timesenior

Software EngineerSoftware Engineering

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Quick Summary

Key Responsibilities

Design and implement scalable software systems, services, and internal tools using Python and modern engineering practices Lead architectural decisions across application, deployment, infrastructure,

Technical Tools

Software EngineerSoftware Engineering

Are you an engineer who enjoys owning the complete solution, from architecture and software design to deployment, observability, and operational excellence?

At Expedition Technology (EXP), we're looking for a Senior Software Engineer/Tech Lead to help design, build, and deliver mission-critical systems supporting the United States Government.

This role is for engineers who think beyond writing code. Successful candidates understand that great systems require thoughtful architecture, maintainable software, reliable deployment pipelines, strong observability, and operational resilience. You are comfortable moving between application development, cloud-native platforms, deployment automation, and technical leadership as mission needs evolve.

EXP is an AI-enabled engineering organization. We encourage engineers to leverage modern AI-assisted development tools such as GitHub Copilot, Claude Code, OpenCode, and similar technologies as part of their daily workflow. Successful candidates should be comfortable using these tools to improve productivity while maintaining strong technical judgment, code quality, and ownership of delivered solutions.

Responsibilities

~1 min read

→Design and implement scalable software systems, services, and internal tools using Python and modern engineering practices
→Lead architectural decisions across application, deployment, infrastructure, and operational domains
→Design systems with maintainability, security, resiliency, scalability, and observability as first-class concerns
→Build and improve CI/CD pipelines and deployment automation workflows
→Design, deploy, and support cloud-native applications running in containerized and Kubernetes-based environments
→Establish and champion engineering best practices around testing, automation, monitoring, reliability, and software quality
→Collaborate with software engineers, platform engineers, and mission stakeholders to deliver complete solutions
→Troubleshoot and resolve complex issues across development, deployment, and production environments
→Mentor engineers and provide technical leadership across projects and teams
→Contribute to verification, validation, testing, and evaluation environments supporting mission needs

Requirements

~1 min read

U.S. Citizenship - must be a US citizen to fulfill clearance requirements
Active TS/SCI security clearance
Bachelor's degree in Computer Science, Engineering, or a related technical discipline
8+ years of professional software engineering experience
Expertise in one or more modern programming languages and the ability to quickly become productive in new technology stacks
Strong software engineering fundamentals independent of language or framework
Experience designing and delivering production software systems
Strong background in software architecture, system integration, and distributed systems
Experience building, deploying, and supporting containerized applications
Experience deploying and operating applications in Kubernetes-based environments
Experience building CI/CD pipelines and deployment automation solutions
Experience implementing monitoring, logging, tracing, and observability capabilities
Experience operating within cloud environments such as AWS
Strong troubleshooting, communication, and technical leadership skills

Infrastructure-as-Code experience using AWS CDK, Terraform, CloudFormation, or similar technologies
GitLab CI/CD experience
OpenTelemetry experience
Experience supporting highly available or mission-critical systems
Experience mentoring and developing engineers
Experience incorporating AI-assisted development tools into engineering workflows

What We Offer

~1 min read

Salary Ranges by Career Level:

Early-career: $95,600 - $147,200

Mid-career: $130,300 - $209,900

Late-career: $154,600 - $242,900

We recognize that every candidate brings a unique combination of experience and expertise. This position may be filled at multiple career levels, and compensation within the posted range will be determined based on relevant experience, education, technical expertise, specialized skills, the level at which the position is filled, and other job-related considerations.

Location & Eligibility

Where is the job

Herndon, United States

On-site at the office

Who can apply

About this job

Pay per year: $95,600–$147,200 a year; 38% below the $195,000 median for Software Engineer jobs on Jobera (5,772 salaries).
Who can apply: United States
Posted: 26 days ago
Employer: has 27 open jobs on Jobera.