Principal Software Engineer - TS/SCI

Sunayu, LLC

• $130K — $155K *
Aerospace & Defense
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's Degree with 12+ years or Master's with 10+ years of experience; relevant experience may substitute for a degree
  • Active TS/SCI clearance with ability to obtain a Polygraph
  • Proficient in Python and frameworks like FastAPI or Flask
  • Experience with Docker and containerization
  • Background in ETL processes
  • Hands-on development in Linux with scripting skills
  • Strong grasp of RESTful APIs and microservices
  • Practical experience with Kubernetes for deployments and monitoring
  • Familiar with design patterns and security practices
  • Experience with CI/CD tools and DevOps practices
  • Excellent communication skills
  • Familiarity with AGILE methodologies
  • Team-oriented and self-motivated

Responsibilities

  • Design, develop, test, and maintain Python microservices
  • Implement message consumers and producers using Apache Kafka
  • Integrate with Elasticsearch for real-time/batch data tasks
  • Write unit and integration tests to ensure code quality
  • Develop CI/CD pipelines and deploy services in Kubernetes
  • Participate in design discussions and code reviews
  • Monitor production issues using observability tools
  • Contribute to team documentation and knowledge sharing
  • Apply software engineering methodologies in development
  • Encourage collaboration within the team for quality outcomes

Benefits

  • Three medical plan options
  • Dental and vision insurance
  • Flexible Spending Accounts (FSA, DCFSA, HSA)
  • Life and AD&D insurance
  • Short- and long-term disability insurance
  • Employee Assistance Program (EAP)
  • Training and educational assistance
  • Paid Time Off (PTO)
  • 11 federal holidays observed
  • 401k plan with up to 6% match and immediate vesting
Full Job Description
Category: Principal Software Engineer - TS/SCI

Location: Bethesda, MD

Clearance: TS/SCI

Travel Required: No
Remote Type: No

Sunayu, LLC is looking for a skilled Python developer to join our team to build and maintain scalable microservices that interface with Kafka for real-time messaging and Elasticsearch for data indexing and search. You'll deploy and monitor your services in a Kubernetes environment and collaborate with cross-functional teams in designing reliable, observable, and secure systems. Our client's overall mission is to design and implement a data centric architecture that leverages cloud-based computing, artificial intelligence (Al), machine learning (ML) and cross-domain transfer systems.

You will work closely with the team on the following key tasks
  • Design, develop, test, and maintain Python microservices
  • Implement message consumers and producers with Apache Kafka
  • Integrate with Elasticsearch for real-time and batch data indexing and querying
  • Write unit and integration tests; ensure high code coverage and reliability
  • Build CI/CD pipelines for your services and deploy them in Kubernetes clusters
  • Participate in design discussions, code reviews, and architecture planning
  • Monitor and troubleshoot production issues with observability tools
  • Contribute to technical documentation and knowledge sharing within the team
  • Utilizes software engineering and design methodologies appropriate to the development, integration, and production environment
  • Foster an environment of collaboration with the different team members in the goal of providing quality service and product to our customers


To be successful in this role you need these skills (required):
  • Bachelor's Degree and 12 or more years of prior relevant experience or Masters with 10 or more years of prior relevant experience. Experience can be considered in lieu of a degree.
  • Must possess an Active Top Secret/SCI clearance and ability to obtain and maintain a Polygraph
  • Proficiency in Python and related backend frameworks (e.g., FastAPI, Flask).
  • Experience with containerization, especially with Docker
  • Experience in Extraction, Transformation, and Load (ETL)
  • Hands-on development experience in a Linux environment including bash or bash-like scripting
  • Strong understanding of RESTful APIs and microservice architecture
  • Hands-on experience with Kubernetes: deploying, monitoring, and debugging services
  • Understanding of common design patterns, security practices, and logging/monitoring principles
  • Familiarity with Git and collaborative workflows (PRs, reviews)
  • Experience with DevOps practices and tools including Continuous Integration/Continuous Delivery (CI/CD) tools and practices, especially Gitlab or Jenkins
  • Strong verbal and written communication skills
  • Experience with AGILE practices
  • Enthusiastic with the ability to work well in a team and a self-starter who can work on their own


You will wow us even more if you have some of these skills:
  • Experience with designing and implementing software development kits
  • Familiarity DGX (Deep GPU Xceleration)
  • Active Security+ certification and ability to obtain Privileged User Account (PUA) certification by the Government
  • Elasticsearch certifications or other program stack related certifications
  • Experience of a production/enterprise systems at scale
  • Knowledge of distributed systems concepts (e.g., idempotency, eventual consistency)
  • Familiarity with schema registries and Kafka streaming patterns
  • Experience blending analytical methodologies and leveraging existing COTS/GOTS/OS tools in an unconventional manner.
  • Experience with Amazon Web Services (AWS/C2S)
  • Familiarity or experience with building applications around Large Language Models, Agentic AI


Pay Rate

Salary range considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills, as well as market and business considerations when extending an offer.

Benefits
  • 3 Medical Plan Options
  • Dental and Vision
  • FSA, DCFSA, HSA
  • Life/AD&D Insurance
  • Short-Term & Long-Term Disability
  • Employee Assistance Program (EAP)
  • Training and Educational Assistance
  • Paid Time Off (PTO)
  • 11 Federal holidays
  • 401k plan with up to a 6% match (100% immediate vesting)


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