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# Software Engineer

- **Company:** CareerCircle
- **Location:** Denver, CO, United States
- **Salary:** $57,850.0 - $104,575.0
- **Contract:** Permanent contract
- **Skills:** HTML, Java (Programming Language), JavaScript (Programming Language), XML Schema, Computer-Aided Design, Microsoft Windows, Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, Amazon Elastic Compute Cloud, Data Analysis, Apache Tomcat, Server Applications, Application Layers, Business Logic, Systems Engineering, Public-Key Cryptography, Acceptance Test-Driven Development, Confluence, Automation of Tests, Unit Testing, Microsoft Azure, Behavior-Driven Development, Oracle WebLogic Server, Building Information Modeling, Bioinformatics, Bootstrap (Software), C++ (Programming Language), Cascading Style Sheets (CSS), CMake, Configuration Management, Code Reuse, Code Review, Encodings, Collaborative Software, Signals Intelligence, Computer Programming, Databases, Computer Literacy, Continuous Delivery, Continuous Integration, Data Security, Linux, DevOps, Digital Signature, Web Development, Django Web Framework, Eclipse (Software), Enterprise JavaBeans, Embedded C, Java Platform Enterprise Edition (J2EE), Network Interface Controllers, Event-Driven Programming, Fault Tolerance, FitNesse, Geospatial Intelligence, Design of User Interfaces, Groovy, Human-Computer Interaction, Integrated Development Environments, Information Systems Security Architecture Professional, JavaFX, Java Persistence API, Java Servlet, Spring Framework, Java Transaction API, JavaScript Libraries, JSON, Java API for RESTful Web Services (JAX-RS), WildFly (JBoss AS), JQuery, Junit, Python (Programming Language), Key Management, PostgreSQL, Apache Maven, Microsoft Visual Studio, Microsoft Office, Microsoft SQL Server, MongoDB, MySQL, Cisco Nexus Switches, Node.Js, OpenShift, Oracle (Applications), Pair Programming, Scrum Methodology, Software Architecture, Systems Development Life Cycle, Mockito, Webui, Rhapsody, Requirements Management, Scaled Agile Framework, Security Software, Selenium, Simple Object Access Protocol (SOAP), Software Engineering, Software Requirements Analysis, SonarQube, SQL Databases, Data Streaming, Web Applications, Web Application Frameworks, Web Services, Web Services Description Language, WebStorm, Extensible Markup Language (XML), Extensible Stylesheet Language Transformations (XSLT), YAML, Enterprise Application Integration, Data Processing, Scripting, Enterprise Software Applications, Computer Network Operations, Warehouse Management Systems, Test-Driven Development (TDD), ReactJS, Flask (Web Framework), Database Optimization, Spring-boot, Multi-Cloud, Infrastructure as Code (IaC), Cloudformation, Vue.js, AngularJS, Jax Ws, Gitlab-ci, Kubernetes, Infrastructure Automation Frameworks, Information Technology, Deployment Automation, Build Tools, Front End Software Development, Restful APIs, Terraform, Cucumber (Software), Code Restructuring, Software Version Control, Devsecops, Jasmine, OpenSearch, Docker, Jenkins, Programming Languages, Microservices
- **Published:** October 14, 2026
- **Apply:** https://www.careercircle.com/jobs/all/all/usa/co/aurora/d3d03701-2f8d-41ba-afe7-b12fa19dd3fc

## About the Role

Must have a BS degree or equivalent experience and less than 2 years prior relevant experience. Additional experience may be substituted for a degree.

Must have demonstrated experience with Java.

Must have experience or familiarity with multiple Java frameworks: Spring to include Boot and Data, Java Enterprise Edition (JEE) (i.e., JPA, EJB, JTA, Servlet), Jackson, Jersey, Swing, JavaFX.

Must have experience or familiarity with multiple of the following languages such as Javascript, Python, C/C++, Groovy, Structured Query Language (SQL).

Must have experience with development IDEs (Integrated Development Environments) such as Eclipse, Visual Studio Code, Visual Studio, Rhapsody, WebStorm.

Must have experience with databases such as Oracle, PostgreSQL, MongoDB, SQL Server.

Must have experience with Web Application User Interface Development, knowledge of databases and structures, Spring Framework, and/or experience working with AngularJS, JSON, HTML, XML, XSLT.

Must have experience with software source control and configuration management tools.

Must have experience with technologies underlying cryptographic systems (symmetric and asymmetric cryptography, ASN.1 encoding, XML canonicalization, digital signatures).

Must have experience developing on Windows, and/or Linux operating systems.

Must have documented professional experience with web services.

Must have a strong understanding of sound software development principles and practices.

Must be able to plan and prioritize personal tasking and be able to communicate effectively verbally and in writing.

Must be an independent thinker, capable of performing high quality work, both independently and with a team in a fast-moving environment.

Preferred Qualifications

Experience with the following: Java Enterprise Edition (JEE) (i.e., EJB, JPA, JTA, JAX-B, JAX-RS, JAX-WS), SQL, application servers (Tomcat, WebLogic, JBoss), Spring framework, scripting.

Experience or familiarity with multiple of the following technologies: XML/XSD/SOAP/WSDL/XSLT, REST, JSON, YAML, Containers (Docker, Podman, Kubernetes, OpenShift).

Experience with Javascript frameworks: AngularJS, Bootstrap, JQuery.

Experience with Testing and Mocking frameworks: JUnit, Jupiter, Mockito, Jasmine, Karma, Cucumber, Unified Functional Tester (UFT), Selenium, FITNesse.

Experience with build tools: Maven, CMake, RPM, Jenkins, Nexus.

Experience with high level requirements management including requirements decomposition, secure systems engineering and development, trade-off analysis, interface control, and testing and continuous integration.

Experience in software development on Agile teams using Agile Developer practices such as Pair Programming, Test Driven Development (TDD), Refactoring, and Acceptance Test Driven Development (ATDD).

Experience with Behavior Driven Development (BDD).

Secure Software development (i.e., Layer 7 Policy).

Experience with the Scrum, Scaled Agile Framework (SAFe) methodology, SAFe Agilest Certification, or experience as a member of an Agile team., Communication
Data Analysis
Project Design
Quality Control
Cost Estimation
Microsoft Office
Constructability
Project Controls
Computer Literacy
Quality Assurance
Project Schedules
Project Management
Influencing Skills
Strategic Planning
Technical Analysis
Material Selection
Logistics Planning
Quantity Take-Offs
Business Strategies
Product Improvement
Business Development
Cost Benefit Analysis
Collaborative Software
New Product Development
Construction Management
Contract Interpretation
Fire Protection Systems
Construction Engineering
Building Information Modeling
Continuous Improvement Process
Design For Manufacture And Assembly (DFMA)
+0

## Description

Linux
Junit
CMake
DevOps
JAX-WS
MongoDB
Jenkins
Mockito
Planning
Equities
OpenShift
Encodings
Leadership
Management
Automation
Purchasing
Kubernetes
User Story
Upskilling
PostgreSQL
Embedded C
XML Schema
Code Reuse
Market Data
Server-Side
Build Tools
Web Services
Unit Testing
Cryptography
Apache Maven
Java Servlet
Communication
Team Building
Apache Tomcat
Prioritization
Business Logic
Key Management
Version Control
Test Automation
Fault Tolerance
Design Software
Sprint Planning
Ancient History
Web Applications
Spring Framework
Pair Programming
Canonicalization
Agile Methodology
Docker (Software)
Security Software
Data Flow Diagram
Digital Signature
Analytical Method
Eclipse (Software)
Application Layers
WildFly (JBoss AS)
Device Programming
Systems Engineering
System Requirements
User Interface (UI)
Selenium (Software)
Cucumber (Software)
Application Servers
Time Off Management
Security Engineering
Software Engineering
Software Development
Signals Intelligence
Independent Thinking
Java Persistence API
Enterprise JavaBeans
Java Transaction API
JavaScript Frameworks
Scaled Agile Framework
Oracle WebLogic Server
Education and Training
Development Environment
Requirements Management
Angular (Web Framework)
Microsoft Visual Studio
Java Enterprise Edition
Jersey (Java Framework)
Public Key Cryptography
Configuration Management
SQL (Programming Language)
C++ (Programming Language)
Java (Programming Language)
Behavior-Driven Development
Computer Network Operations
Cascading Style Sheets (CSS)
Scrum (Software Development)
Unified Field Theories (UFT)
Python (Programming Language)
Test-Driven Development (TDD)
Groovy (Programming Language)
Systems Development Life Cycle
Enterprise Application Software
Software Development Life Cycle
Bootstrap (Front-End Framework)
Extensible Markup Language (XML)
HyperText Markup Language (HTML)
JavaScript (Programming Language)
Web Services Description Language
Java API For RESTful Web Services
Acceptance Test-Driven Development
Integrated Development Environments
Simple Object Access Protocol (SOAP)
Karma (JavaScript Testing Framework)
Jasmine (JavaScript Testing Framework)
Extensible Stylesheet Language Transformations (XSLT)
Top Secret-Sensitive Compartmented Information (TS/SCI Clearance), Leidos has a new and exciting opportunity for a Software Engineer in our Intelligence Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!

Software Engineer

*Must have an active TS/SCI Polygraph on Day One. No exceptions.*

In this exciting role, you will perform software development lifecycle (SDLC) activities as both an individual and a member of our top-notch agile development team building a large complex enterprise system! Development includes the full range of turning Agile user stories into implementable concepts, through development, unit testing, integration and test, and deployment of the new capabilities for the large complex enterprise system. Following the Behavior-driven Development (BDD) pattern, developers are responsible for implementing robust testing leveraging DevOps automation and, where appropriate, use of test automation commercial tools. There are a range of opportunities for server-side business logic implementation as well as client web application and user interface (UI) development. Java, Python, embedded C/C++, Java cryptographic framework, XML, web UI (i.e., Angular, JavaScript, CSS, HTML, etc.) and special purpose device programming opportunities are available.

Primary Responsibilities

You will actively participate in daily stand-ups, Sprint Planning, Program Increment (PI) Planning, and other related team activities; analyze and study complex system requirements, use design software tools, provide support using formal specifications, data flow diagrams, and other accepted design techniques and will use sound software engineering principles to ensure that developed code is modifiable, efficient, reliable, understandable, fault tolerant, and reusable. You will provide software process management and control throughout the coding portion of the software development process and will promote code reuse and cross-program collaboration while reducing maintenance costs by creating common functions and shared actions for developers and testers. You will engineer, author, tune and document automation scripts in a development environment and deploy to the test/production bench., All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.
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