Mid-Level Backend Software Engineer

System One; Gaithersburg (MD); On-site; USD 120,000 - 150,000; Full time

Benefits offered by this job

Health and welfare benefits

Job summary

System One is seeking a Mid-Level Backend Software Engineer with TS/SCI clearance for on-site work in Gaithersburg, MD. The contract-to-hire role demands 40 hours weekly, strong Java or Python OO development, RESTful services, and Linux experience.

Applicants should have a Bachelor's or Master’s in CS or related field, citizenship, and the ability to pass a polygraph. Collaborative, battle-tested backend delivery is expected.

Qualifications

• US Citizenship is required.
• Active TS/SCI clearance with the ability to pass a Polygraph.
• Experience developing object-oriented applications in Java or Python.
• Hands-on RESTful API development experience.
• SQL and Linux experience for data handling and deployments.

Responsibilities

• Design, develop, test, and maintain backend components in Java or Python.
• Develop and maintain RESTful services to support app functionality.
• Apply OO design to build scalable, maintainable systems.
• Write and modify SQL queries for data retrieval.
• Collaborate across teams to integrate data sources and back-end systems.
• Develop and troubleshoot applications in Linux environments.
• Implement backend data transformation and workflow logic.
• Identify, debug, resolve defects and performance issues.
• Follow coding standards, participate in code reviews, and document.

Skills

Java

Python

RESTful APIs

Object-oriented design

SQL

Linux

Backend development

Education

Bachelor’s degree in Computer Science or related field

Master’s degree in Computer Science or related field

Job description

Job Title: Mid-Level Backend Software Engineer-TS/SCI
Location: Gaithersburg, MD
Type: Contract To Hire
Compensation:
Work Model: Onsite
Hours: 40.0
Security Clearance: Top Secret/SCI

Overview

Active TS/SCI Security Clearance required with the ability to successfully pass a Polygraph

Responsibilities

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

Requirements

• 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 object-oriented 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

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

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