Backend

Backend Engineer Jobs

3 jobs found

1mo ago

Mid-Level Backend Software Engineer

Leidos Alexandria, VA

Alexandria, VA

1mo ago Closed

$87k - $157k/yr Full time Backend Mid Software

This position is no longer accepting applications (closed Jun 25, 2026).

Job Description

Leidos is seeking a Mid-Level Backend Software Engineer to design, develop, and maintain backend components and RESTful services in a Linux environment to support mission-critical analytics. The role involves collaborating with data sources and stakeholders across programs and locations, and is based onsite in Alexandria, VA.

Responsibilities

Design, implement, test, and maintain backend components using Java or Python.
Develop and sustain RESTful services to support application functionality and system integrations.
Apply object-oriented design principles to build scalable, maintainable systems.
Write and optimize SQL queries to support data retrieval and application functionality.
Collaborate with internal and external teams to understand data sources, formats, and access methods and support backend integration.
Develop and troubleshoot applications within Linux-based environments.
Implement backend logic for data transformation, processing, and system workflows.
Identify, debug, and resolve application defects and performance issues.
Adhere to coding standards, participate in code reviews, and contribute to documentation efforts.

Requirements

Bachelor's degree in Computer Science, Software Engineering, or a related field.
Bachelor's degree in Computer Science, Software Engineering, or a related field with 4–8 years of experience.
Master's degree with 2–6 years of experience.
U.S. Citizenship.
Active TS/SCI clearance with the ability to pass a polygraph.
Professional experience developing object-oriented applications in Java or Python.
Hands-on experience building and maintaining RESTful APIs.
Basic to moderate SQL experience, including writing queries and working with relational databases.
Working knowledge of Linux-based environments.
Ability to work independently on defined tasks within established technical frameworks and deliver reliable results.

Technologies

Java
Python
SQL
Linux
Apache Airflow
Spring Boot
Django
Docker
OpenShift
GitLab
Jenkins
AWS
Azure

Benefits

Competitive compensation
Health and Wellness programs
Income protection
Paid leave
Retirement benefits

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1mo ago

Backend Software Engineer

Embedded Alliance Gaithersburg, MD

Gaithersburg, MD

1mo ago Closed

$105k - $185k/yr Full time Backend Developer Python Apache Airflow

This position is no longer accepting applications (closed Jun 24, 2026).

Job Description

Embedded Alliance seeks a Backend Software Engineer to design scalable backend services, implement RESTful APIs, and integrate data sources for a Linux-based analytics and decision-support platform.

Responsibilities

Architect, implement, validate, and maintain backend services using Java or Python
Design and deploy RESTful APIs to support core features and integrations
Apply solid object-oriented design to build scalable, maintainable systems
Develop and optimize SQL queries to support functionality and performance
Collaborate with external teams to understand data sources, interfaces, and access patterns, translating requirements into backend integrations
Contribute to technical design discussions and backend architecture decisions
Develop, deploy, and troubleshoot applications within Linux-based environments
Diagnose and resolve issues across application and database layers
Participate in code reviews and uphold engineering standards

Requirements

Education: Master’s degree required; or Bachelor’s degree in Computer Science, Software Engineering, or a related field with 8–12 years of experience
Minimum experience: 6 years
U.S. Citizenship
Active TS/SCI clearance with the ability to pass a polygraph
Strong backend experience with Java or Python
Proven ability to design and develop RESTful APIs for scalable application functionality
Solid SQL experience, including writing and optimizing queries across relational databases
Proficient in Linux-based environments
Ability to work independently and drive solutions to moderately to highly complex technical challenges

Technologies

Java
Python
RESTful APIs
SQL
Linux
Apache Airflow
PostGIS
Spring Boot
Django
GitLab
Jenkins
Docker
OpenShift
Kubernetes
AWS
Azure

Benefits

401(k)
401(k) matching
Dental insurance
Health insurance
Life insurance
Paid time off
Parental leave
Referral program
Retirement plan
Vision insurance

Compensation

Salary: USD 105,000.00 - 185,000.00 per year

Experience

Software Engineering or Computer Science: 8 years (Preferred)

Security Clearance

Top Secret (Required)

Work Location

Onsite in Gaithersburg, MD

Preferred Qualifications

Experience with Apache Airflow or similar workflow orchestration technologies
Experience with geospatial data and querying, e.g., PostGIS
Experience with Spring Boot, Django, or similar backend frameworks
Experience with CI/CD pipelines (GitLab, Jenkins, etc.)
Familiarity with containerization (Docker, OpenShift, Kubernetes)
Exposure to cloud environments (AWS or Azure)
Experience working in Agile development environments

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1mo ago

Backend Software Engineer Senior

Lockheed Martin Corporation Colorado Springs, CO 🇺🇸 Remote

Colorado Springs, CO

1mo ago Closed

$107k - $186k/yr Full time Backend Developer Python Senior

This position is no longer accepting applications (closed Jun 22, 2026).

Job Description

This senior backend software engineering role focuses on building backend and middleware services for the Unified HMI platform with remote telework options in Colorado Springs, CO.

Responsibilities

Design and implement backend and middleware components to ingest and process real-time sensor, telemetry, and AI/ML data streams.
Develop and maintain cloud-native applications and integrations utilizing AWS services and modern architectural patterns.
Support DevSecOps efforts, including CI/CD pipeline development, automated testing, and streamlined deployment processes.
Create unit, integration, and automation tests to validate functionality and system performance.
Engage in Agile and SAFe development activities such as PI Planning, Scrum of Scrums, and System Demonstrations.
Collaborate with architects, AI/ML engineers, software developers, and stakeholders to ensure solutions align with operational workflows and mission objectives.
Produce technical documentation including design specifications, API references, and implementation guidance.

Requirements

Bachelor’s degree in Computer Science, Software Engineering, Electrical Engineering, or a related field; Master’s degree preferred.
4+ years of professional software development experience.
Proficiency with Python, FastAPI, AWS, Oracle OCI, Kubernetes, Docker, WebSockets, REST APIs, GitLab, and Linux.
Experience building and maintaining CI/CD pipelines (GitLab CI, Jenkins, Azure DevOps) and using static/dynamic security tooling.
Experience with unit testing frameworks and UI automation.
Demonstrated ability to execute Agile and SAFe practices; familiarity with JIRA and Confluence.
Strong ability to produce clear technical documentation.

Technologies

Python
FastAPI
AWS
Oracle OCI
Kubernetes
Docker
WebSockets
REST APIs
GitLab
Linux
GitLab CI
Jenkins
Azure DevOps
Kafka
MQTT
AWS Kinesis
AppSync
REST
GraphQL
Cameo DOORS NEXT

Benefits

Medical
Dental
Vision
Life Insurance
Short-Term Disability
Long-Term Disability
401(k) match
Flexible Spending Accounts
EAP
Education Assistance
Parental Leave
Paid time off
Holidays

Security Clearance

This position requires a government security clearance. U.S. citizenship is required for consideration.
Clearance level: Secret

Work Arrangements

Full-time remote telework: the selected candidate will work remotely full time at a location outside a Lockheed Martin designated office. Periodic travel to a Lockheed Martin office may be required for meetings.

Schedule

4x10 hour days with 3 days off per week

Location and Relocation

Colorado Springs, CO (remote)
Relocation available: No

Compensation Details

Salary range for California, Massachusetts, and New York metro areas: $107,300 - $185,840 per year.
Salary range for Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington, Washington DC, and other areas based on final work location: $93,200 - $164,450 per year.

Expression of Interest

By applying to this job, you express interest in the position and may be considered for other opportunities with similar skills and requirements. If a match is identified, you may be contacted for this and future openings.

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