Software Engineer - Backend Solutions with Security Clearance

Cornerstone Defense; Chantilly (VA); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Medical, Dental and Vision Plans

Generous PTO Policy

401(k) plan

HSA and FSA options

Life and Disability Insurance

Tuition Reimbursement and Training

Job summary

Cornerstone Defense is seeking a Software Engineer to design and implement scalable backend services and data ingestion solutions. You will model data, map schemas, and manipulate large files within an Agile team to deliver robust, high-performance data pipelines and APIs.

The role emphasizes distributed systems, NoSQL data stores, and modern cloud-era architectures to support critical defense operations and analytics. Strong collaboration and modular design are required.

Qualifications

• Bachelor's Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.

Responsibilities

• Design and develop scalable backend services and data ingestion solutions.
• Perform data modeling, data mapping, and large-scale file manipulation.
• Collaborate across disciplines in an Agile environment with minimal supervision.
• Drive innovation and process improvement with a hands-on development approach.
• Optimize application for maximum speed and scalability.

Skills

NodeJS

Python

APIs & Microservices

ETL workflows

NoSQL

Education

Bachelor's Degree in Computer Science or related field

Tools

NiFi

Elastic

RabbitMQ

MongoDB

Job description

Software Engineer - Backend Solutions JOB DESCRIPTION We're looking for a Software Engineer who is passionate about building modern, scalable solutions for ingesting and transforming data. This role blends back-end engineering with data pipeline development and is perfect for someone who enjoys designing modular services and bringing structure to complex data environments. As part of our Agile team, you'll design and develop software products and services that efficiently ingest, process, and manage data from a variety of sources. You'll play a key role in building robust, reusable APIs and data pipelines that support critical operational and analytical systems.

KEY RESPONSIBILITIES

• Design and develop scalable backend services and data ingestion solutions.
• Perform data modeling, data mapping, and large-scale file manipulation.
• Collaborate across disciplines in an Agile environment with minimal supervision.
• Drive innovation and process improvement with a hands-on development approach.
• Optimize application for maximum speed and scalability.

QUALIFICATIONS

• Bachelor's Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.

REQUIRED KNOWLEDGE/SKILLS

• Knowledge of NodeJS or Python
• Strong understanding of APIs, microservices, and distributed systems.
• Solid experience in building and maintaining ETL workflows and data pipelines.
• Excellent organizational, coordination, interpersonal and team building skills.
• Familiarization with NoSQL datastores.

DESIRED KNOWLEDGE/SKILLS

• NiFi experience
• Hands-on experience working with Elastic and RabbitMQ
• NoSQL experience (i.e. MongoDB)
• Distributed architecture creation
• Cloud based architecture creation or experience

Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation's toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don't look any further than Cornerstone Defense.

Benefits Overview

• Benefits Overview : Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans
• Generous PTO Policy
• 401(k)
• HSA and FSA options
• Life and Disability Insurance
• Tuition Reimbursement and Training
• Perks at Work Discount Program
• Referral Program
• Leads Generation Program
• CollegeAmerica 529
• Fitness Reimbursement Program
• Travel Assistance
• Norton Lifelock Benefit Solutions
• Life Planning Financial & Legal Services *