Senior Principal Software Engineer - TS Clearance (On-site)

Northrop Grumman; El Segundo (CA); On-site; USD 114,000 - 213,400; Full time

Benefits offered by this job

Retirement plan

Savings plan

Medical insurance

Dental insurance

Vision insurance

Life insurance

Disability insurance

Flexible spending accounts

Bonuses

Job summary

Northrop Grumman seeks Principal/Sr Principal Software Engineer (on site) in Rancho Bernardo or El Segundo, CA. Join the R&A&D Division to develop next-generation technologies and rapidly deploy to end users.

The role requires building enterprise-grade software, collaborating across teams, and delivering mission-critical solutions. Candidates should have strong Java/Spring, microservices, and frontend skills, plus experience with NiFi, dashboards, and security clearances.

Qualifications

• Bachelor’s degree in a STEM discipline and 5 years of relevant engineering experience, OR Master’s degree in a STEM discipline and 3 years of relevant engineering experience, OR PhD and 1 year of experience in a related field.
• Ability to obtain and maintain Top Secret clearance.
• Active SCI and SAP clearance (preferred).
• Experience with Java 21+ and microservice development.
• Experience with observability, dashboards (Prometheus, Grafana).
• Experience with Apache NiFi and data pipelines.

Responsibilities

• Engineer enterprise solutions that align with best practices to support mission critical objectives.
• Work on 1-3 mid- to large-scale projects concurrently, assigned from program and internal leadership.
• Participate in regular project design and incremental status meetings.
• Collaborate with different teams across the program to discuss, analyze or resolve usability issues and work on projects.
• Provide effective communication across multi-functional teams, stakeholders and end-users.

Skills

Java 21+

Spring Boot

Microservices

Frontend frameworks

WebSockets/SSE

Prometheus Grafana

Apache NiFi

ActiveMQ

Docker

AWS SDK for Java v2

Protobuf/JAXB/Jackson

Testcontainers

Education

Bachelor's degree in STEM

Master's degree in STEM

PhD in STEM

Tools

Docker

OCI containers

MongoDB

Elasticsearch

S3 AWS

Job description

Northrop Grumman seeks Principal/Sr Principal Software Engineer (on site) in Rancho Bernardo or El Segundo, CA. Join the R&A&D Division to develop next-generation technologies and rapidly deploy to end users.

The role requires building enterprise-grade software, collaborating across teams, and delivering mission-critical solutions. Candidates should have strong Java/Spring, microservices, and frontend skills, plus experience with NiFi, dashboards, and security clearances.