Cloud Software Engineer, TS/SCI with Polygraph

Rivermatrix Technologies, Inc

$160K — $240K *
Aerospace & Defense
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Computer Science or related field.
  • 8+ years in software development/engineering.
  • 6+ years in high-level programming (Java, C, C++).
  • 5+ years with UNIX/Linux environments (RedHat-based).
  • 3+ years in software integration/testing with test plan development.
  • Active TS/SCI clearance with Poly required.
  • Strong Java, Infrastructure as Code (IaC), and CI/CD experience.

Responsibilities

  • Design and build new software capabilities for large-scale compute clusters.
  • Conduct software testing and optimize system performance.
  • Support operations and sustainment phases of software.
  • Provide mentorship and technical guidance to junior staff.
  • Contribute to project planning by defining tasks and technical approaches.
  • Review system designs for accuracy and scalability.
  • Develop and execute test cases, create SOPs, and maintain documentation.

Benefits

  • PTO.
  • 401(k) plan.
  • Health, Dental, and Vision insurance.
  • Life insurance coverage.
  • Flexible Spending Account options.
  • Professional Development opportunities.
  • Short & Long Term Disability benefits.
Full Job Description
Job Description
Rivermatrix is seeking a Cloud Software Engineer to join a large, complex product development environment. This role focuses on supporting all aspects of agile software design and development for products deployed across large-scale compute clusters. Responsibilities include designing and building new capabilities, conducting testing, optimizing performance, and supporting ongoing operations and sustainment. As a Senior Cloud Software Engineer, you will operate with a high degree of independence across the full software development lifecycle, including requirements analysis, design, development, integration, testing, deployment, and maintenance. Design and implement scalable solutions, including integration and extension of COTS and GOTS products. Troubleshoot and resolve complex technical issues while optimizing system performance. Provide technical guidance and mentorship to junior engineers. Contribute to project planning by defining tasks, timelines, and technical approaches. Develop and execute test cases, create SOPs, and maintain technical documentation. Review system designs for accuracy, completeness, and scalability.

Requirements

The Cloud Software Engineer must have a Bachelor's degree in Computer Science or a related technical field (e.g., Mathematics, Information Systems, Engineering).

Minimum of 8 years of experience in software development/engineering, including requirements analysis, development,

integration, testing, and troubleshooting.

At least 6 years of experience developing in high-level languages such as Java, C, or C++.

At least 5 years of experience working in UNIX/Linux (RedHat-based) environments.

At least 3 years of experience in software integration and testing, including test plan and script development.

An active TS/SCI with Poly is required.

Requirements:

Strong Java development experience, including distributed systems, networking, and multithreading

Proficiency with Infrastructure as Code (IaC) tools such as Ansible or Puppet

Experience with CI/CD pipelines, including automated testing, deployment, and monitoring

Experience working in Agile environments with modern source control practices

Strong Linux fundamentals and proficiency in at least one scripting language (e.g., Python, Bash, Ruby, or Perl)

Familiarity with microservices architecture and container orchestration platforms (e.g., Kubernetes)

Experience with containerization technologies such as Docker

Hadoop or Cloud Developer certification required

Willingness to participate in a rotating Tier III on-call schedule

Ability to support surge requirements during high-priority situations

Position is primarily onsite at the customer location; telework is limited and situational

Preferred Skills

Experience with Apache Hadoop, Accumulo, and NiFi

Familiarity with MongoDB and messaging systems (e.g., ActiveMQ)

Experience with Spring Framework, Python, and Bash scripting

Knowledge of security and compliance best practices

Experience with AWS, hybrid cloud environments, and related cloud technologies

Required Certification (one of the following):

AWS Certified Developer - Associate

AWS DevOps Engineer - Professional

Certified Kubernetes Application Developer (CKAD)

Possession of a Cloud certification is required and will be verified as part of the interview or offer process.

Benefits

Rivermatrix offers a well rounded benefits package to include: PTO, 401(k), Health, Dental, Vision, Life, Flexible Spending, Professional Development, Short & Long Term Disability, and much more!

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