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Backend Software Engineer Security Clearance

Job in McLean, Fairfax County, Virginia, USA
Listing for: steampunk
Full Time position
Listed on 2026-05-13
Job specializations:
  • Software Development
    DevOps, Cloud Engineer - Software, Python
Job Description & How to Apply Below
Position: Backend Software Engineer with Security Clearance
Overview Who We Are Steampunk is the explosive collision of human-centered design and traditional government contracting. An employee-owned company with a startup mindset and time-tested approaches tailored for the federal government, we're passionate about creating solutions that are impactful, practical, scalable, and most importantly, that meet our clients' ever-changing needs. At Steampunk, we believe in disrupting the status quo and setting the pace in the ecosystem of government contractors, while repurposing tried-and-true methodologies.

We believe in empowering our people to find creative solutions to intractable problems. We believe the best environment in which to grow and thrive is outside our comfort zone. While good design makes for a good product, we believe human-centered design makes for an excellent one. We also believe effective teams are powered by diverse perspectives, backgrounds, and experiences. To that end, Steampunk is an equal opportunity employer committed to promoting diversity of race, gender, sexual orientation, religion, ethnicity, national origin, disability status, and protected veteran status, amongst our ranks.

Additionally, we participate in the E-Verify program. Contributions As a Backend Software Engineer, you will work on modernizing legacy enterprise systems by decomposing monolithic Java and .NET services into cloud-native Python microservices. This role is centered on Python development. You will design and deploy lightweight REST APIs and batch processing jobs across serverless and containerized environments. We are looking for candidates with 5+ years of experience writing production Python software using Agile and Dev Sec Ops  methods such as build/release management, CI/CD practices, and test automation.

Responsibilities include:

* Decompose legacy Java and .NET monolithic services into modular Python microservices
* Design, develop, and deploy concise Python REST APIs and batch service jobs
* Deploy and operate services in AWS Lambda and Kubernetes environments
* Apply Dev Sec Ops  concepts and CI/CD pipeline practices to accelerate secure delivery
* Understand the needs of stakeholders and convey this to other developers
* Write and debug code for innovative software solutions
* Troubleshoot software quality, security, and reliability issues
* Participate in code reviews and quality assurance activities
* Automate unit and functional tests
* Test and examine code written by others and analyze results
* Ensure that software is secure against cyber threats
* Identify technical problems, perform root cause analysis, and develop software updates and 'fixes'
* Support production releases (including deployment, troubleshooting, and testing)
* Document software code, features, and training guides
* Document as-is state of legacy systems, perform gap analysis, and produce artifacts that articulate decomposition options and recommendations
* Leverage containerization and serverless platforms to modernize software systems Qualifications

Required:

* Excellent written and verbal communication skills
* Strong interpersonal and collaborative skills
* Ability to obtain a U.S. government Security Clearance
* Bachelor's degree and 5+ years total experience
* 3+ years of experience writing production Python code
* Experience decomposing or refactoring legacy Java and/or .NET services into Python microservices
* Experience writing and deploying REST APIs and batch jobs in Python
* Experience deploying Python applications to AWS Lambda and Kubernetes
* Familiarity with Dev Sec Ops  concepts and CI/CD pipeline tools such as Harness and Git Lab CI/CD
* Experience with Git SCM providers such as Gitlab
* Experience developing and deploying containerized applications using Docker
* Experience implementing automated testing frameworks, including unit testing in Python (e.g., pytest, unittest) Preferred:
* Experience with Databricks for data engineering, ETL, or analytics workloads
* Experience integrating with Salesforce APIs or developing on the Salesforce platform

* Certifications:

* AWS Certified Cloud Practitioner
* AWS Certified Developer Associate
* AWS Certified…
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