Software Engineer II

Sigma Defense

Huntsville (AL)

On-site

USD 86,000 - 100,000

Full time

14 days+

Application generator

Get a reply from this employer — a resume and cover letter tailored to exactly what they’re hiring for.

Get past ATS filters

Benefits offered by this job

Dental & Vision

Medical with HSAs

401(k) with match

PTO 160 hours

12 holidays

Educational assistance

Competitive salary

Life & AD&D

EAP

Job summary

Sigma Defense seeks a Software Engineer II to design, develop, test, and maintain desktop and web-based software for communications, tactical, and hardware-integrated systems. You will work with C++, Python, JavaScript, TypeScript, and REST APIs, integrating software with hardware and supporting field testing and customer demos.

Qualifications include a BS in a technical field and 3–4 years of software development, with strong communication and teamwork skills, and willingness to travel up to

Qualifications

3–4 years of software development experience (professional, internship, academic, or personal project experience considered).
Experience with object-oriented software development principles.
Understanding of networking fundamentals and TCP/IP communications.
Experience using Git or similar version control systems.
Strong analytical, troubleshooting, and problem-solving skills.
Ability to learn new technologies and adapt to evolving project requirements.
Strong written and verbal communication skills.
Ability to work independently and collaboratively within a small engineering team.
Ability to travel up to 15% of year.
Must be a U.S. citizen.

Responsibilities

Design, develop, test, and maintain desktop and web-based software applications.
Develop and maintain software using C++, Python, JavaScript, TypeScript, and related technologies.
Develop desktop applications using frameworks such as Qt.
Develop and maintain modern web applications using frameworks such as Angular, React, or similar technologies.
Design and implement backend services, REST APIs, and real-time communication interfaces.
Develop and maintain client/server applications utilizing TCP/IP, UDP, WebSockets, gRPC, and related communication technologies.
Integrate software with hardware devices, sensors, and external systems.
Develop and maintain Protocol Buffer message definitions and communication interfaces.
Support database-driven applications and data visualization tools.
Troubleshoot and resolve software defects throughout the development lifecycle.
Develop technical documentation, ICDs, user guides, and test procedures.
Participate in software architecture discussions, design reviews, and technical planning activities.
Support customer demonstrations, field testing, system integration activities, and operational evaluations.

Skills

Analytical thinking

Troubleshooting

Problem solving

Written communication

Verbal communication

Independent work

Team collaboration

Travel readiness

Education

Bachelor's degree in CS/CE/SE

Tools

Git

Angular

React

Vue

REST APIs

PostgreSQL

SQL databases

gRPC

WebSockets

Docker

Job description

Sigma Defense is seeking a Software Engineer II to join our team developing software solutions for communications, tactical, and hardware-integrated systems. This role involves a combination of desktop application development, web application development, backend services, hardware integration, and system testing. The ideal candidate enjoys solving technical challenges, learning new technologies, and working across multiple disciplines. This position offers opportunities to develop desktop and web-based applications, integrate software with hardware systems, support customer demonstrations, and participate in field testing activities.

Equal Opportunity Employer/Veterans/Disabled: Sigma Defense Systems is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

Requirements

3-4 years of software development experience (professional, internship, academic, or personal project experience considered).
Experience with object-oriented software development principles.
Understanding of networking fundamentals and TCP/IP communications.
Experience using Git or similar version control systems.
Strong analytical, troubleshooting, and problem-solving skills.
Ability to learn new technologies and adapt to evolving project requirements.
Strong written and verbal communication skills.
Ability to work independently and collaboratively within a small engineering team.
Ability to travel up to 15% of year.
Must be a U.S. citizen.

Candidate Differentiators

Experience with Qt and desktop application development.
Experience developing web applications using Angular, React, Vue, or similar frameworks.
Experience developing REST APIs and backend services.
Experience with PostgreSQL, SQL databases, or database design.
Experience with gRPC and Protocol Buffers.
Experience with WebSockets and real-time data streaming.
Experience with Docker or containerized deployments.
Experience developing TCP/UDP network applications.
Experience working with geospatial technologies or mapping applications.
Experience programming embedded systems, microcontrollers, or Arduino-based devices.
Experience integrating software with hardware devices and external systems.
Experience with Team Awareness Kit (TAK) technologies, including ATAK, WinTAK, TAK Server, and Cursor-on-Target (CoT) is preferred.

Computer Programs/Software

C++
Python
JavaScript
TypeScript
Linux

Personnel Clearance Level

Candidate must possess or have the ability to obtain an active TS/SCI security clearance.
Clearance may be sponsored for the right candidate.

Education Requirements

Bachelor's degree from an accredited college or university in Computer Science, Computer Engineering, Software Engineering, Electrical Engineering, or related field of study.

Essential Job Duties (not all-inclusive)

Design, develop, test, and maintain desktop and web-based software applications.
Develop and maintain software using C++, Python, JavaScript, TypeScript, and related technologies.
Develop desktop applications using frameworks such as Qt.
Develop and maintain modern web applications using frameworks such as Angular, React, or similar technologies.
Design and implement backend services, REST APIs, and real-time communication interfaces.
Develop and maintain client/server applications utilizing TCP/IP, UDP, WebSockets, gRPC, and related communication technologies.
Integrate software with hardware devices, sensors, and external systems.
Develop and maintain Protocol Buffer message definitions and communication interfaces.
Support database-driven applications and data visualization tools.
Troubleshoot and resolve software defects throughout the development lifecycle.
Develop technical documentation, interface control documents (ICDs), user guides, and test procedures.
Participate in software architecture discussions, design reviews, and technical planning activities.
Support customer demonstrations, field testing, system integration activities, and operational evaluations.