Mid-Level Backend Engineer — Build High-Impact APIs & Data

Leidos Inc; Chantilly (VA); On-site; USD 87,000 - 157,000; Full time

Job summary

Leidos is seeking a Backend Software Engineer to support a high-visibility analytics and reporting platform. You will design, develop, test, and maintain backend services in Java or Python, build RESTful APIs, and optimize data workflows in Linux environments.

This role offers growth in backend design and scalable systems while impacting mission-critical operations. Based on your experience, you’ll collaborate across programs with engineers and stakeholders to ensure reliability, performance,

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related field with 4-8 years of experience; or a Master's degree with 2-6 years of experience
• US Citizenship
• Active TS/SCI with the ability to successfully pass a Polygraph
• Professional experience developing objectoriented applications in Java or Python
• Hands-on experience building and maintaining RESTful APIs
• Basic to moderate experience with SQL capability, 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

Responsibilities

• Backend Development: Design, develop, test, and maintain backend application components using Java or Python
• REST API Development: Develop and maintain RESTful services to support application functionality and system integrations
• Object-Oriented Programming: Apply object-oriented design principles to build scalable and maintainable systems
• Database Development: Write and modify SQL queries to support application functionality and data retrieval
• Data Source Collaboration: Collaborate with internal and external teams to understand data sources, formats, and access methods, and support integration into backend systems
• Linux Environments: Develop and troubleshoot applications within Linux-based environments
• Data Processing & Business Logic: Implement backend logic for data transformation, processing, and system workflows
• Bug Fixing & Enhancements: Identify, debug, and resolve application-level defects and performance issues
• Code Quality: Follow coding standards, participate in code reviews, and support documentation efforts

Skills

Java

Python

REST APIs

SQL

Linux

OOP

API Design

Education

Bachelor's in CS/SE

Tools

Spring Boot

Django

Docker

OpenShift

AWS

Job description

Leidos is seeking a Backend Software Engineer to support a high-visibility analytics and reporting platform. You will design, develop, test, and maintain backend services in Java or Python, build RESTful APIs, and optimize data workflows in Linux environments.

This role offers growth in backend design and scalable systems while impacting mission-critical operations. Based on your experience, you’ll collaborate across programs with engineers and stakeholders to ensure reliability, performance,