Software Engineer - Backend Solutions with Security Clearance

Cornerstone Defense LLC

Chantilly (VA)

On-site

USD 110,000 - 140,000

Full time

14 hours ago

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Benefits offered by this job

Health plans

PTO

401(k)

HSA/FSA

Life Insurance

Tuition reimbursement

Perks at Work

Referral program

529 plan

Fitness reimbursement

Travel assistance

Lifelock benefit

Financial & legal services

Job summary

Cornerstone Defense LLC is seeking a Software Engineer to build scalable backend solutions for data ingestion, transformation, and API services. The role blends backend engineering with data pipeline development, delivering robust, modular services for diverse data sources in an Agile team.

You will design and implement data-centric software that supports operational and analytical systems, emphasizing performance, reliability, and maintainability.

Qualifications

Bachelor's degree or equivalent in a technical field.
Experience building scalable backend and data pipelines.
Strong knowledge of APIs, microservices, and data stores.

Responsibilities

Design and develop scalable backend services and data ingestion solutions.
Perform data modeling, data mapping, and large-scale file manipulation.
Collaborate in an Agile environment with minimal supervision.
Drive process improvements with hands-on development.
Optimize applications for speed and scalability.

Skills

NodeJS

Python

APIs & microservices

ETL pipelines

Data ingestion

Team collaboration

NoSQL datastores

Education

Bachelor's Degree in CS/EE or related

Tools

NiFi

Elastic

RabbitMQ

MongoDB

Job description

Software Engineer - Backend Solutions

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