Senior Software Engineer - TS/SCI

Location: Bethesda, MD

• Category: Software Engineer
• Travel Required: No
• Remote Type: No
• Clearance: TS/SCI

Sunayu, LLC has an exciting opening for you as our next TS/SCI cleared Software Engineer supporting a long-term DIA-NDOC DOMEX Technology Platform (DTP) contract. You will work closely with Systems Engineers, Software Engineers, Architects, and Operations Engineering/Manager on a broad scope of activities extending across the development of systems to include middle-tier and backend engineering tasks. Have impact as part of a mission focused, solutions oriented, and adaptive team that values innovation, collaboration, and professional development.

While most work is conducted on-site at our client location in Bethesda, MD, we offer a flexible schedule and, occasionally, some tasks may be performed remotely. The percentage of remote work will vary based on client requirements/deliverables.

Specifically, we are 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 8 or more years of prior relevant experience or Masters with 6 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

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Who We Are

Sunayu, LLC serves as a premier technology partner to the Defense and Intelligence communities, delivering mission-critical engineering solutions across the nation. Our operations are anchored in a commitment to trust, accountability, and ethical transparency, ensuring the high-performance outcomes necessary to protect our country's most vital interests.

Culture

Our strength lies in our community: Our team prioritizes collaboration, professional growth, and encourages open communication . At Sunayu, we don't just secure the mission—we grow together.

Career Development

We support and encourage our team members to continue their professional growth by providing company-reimbursed training and continuing education of up to $5,000 per year. We also participate in many industry conferences and events where we share our expertise and experiences.

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)

Equal Opportunity Employer

Sunayu, LLC is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, gender expression, national origin, age, protected veteran status, disability status, marital status, genetic information, medical condition, or any other characteristic protected by law.