As a Senior Software Engineer, you will contribute to the development of an innovative, cloud-hosted educational technology platform focused on immersive cybersecurity training. This role combines technical expertise with hands-on development, requiring strong foundational engineering skills and enthusiasm for creating scalable, user-centric software solutions. The position is remote and requires a collaborative approach to implementing an immersive cyber education experience. This role is for a full-stack developer who will work closely with both engineering and UX professionals, contributing to feature ideation, design, and development.

You will guide the team in designing, implementing, and maintaining RESTful APIs by employing concepts like API First Design. Following service-oriented architecture principles, you will build and improve a robust Typescript backend connected to a React frontend. A key focus will be developing the service's ability to deploy and manage virtual cyber training environments in Azure cloud infrastructure. Most importantly, you'll work closely with various stakeholders to facilitate dynamic Cyber Range building, ensuring these specialized environments meet training requirements and can be rapidly deployed on demand, monitored, and cleaned up.

About Circadence

Circadence has leveraged its history of software advancement, multi-player game development, and a deep understanding of application optimization to offer Project Ares — the only fully immersive, on-demand, cyber range-based cybersecurity training platform in the market today. Project Ares provides cybersecurity teams the opportunity to practice skills and hone tactics in realistic, mission-specific virtual environments with real-world tools, and network activity, available 24/7 worldwide. The Circadence portfolio is expanding rapidly and includes other emerging SaaS and PaaS Cyber Security product lines from security awareness to expert cyber security training and operational platforms supporting both commercial and government customers.

How You Will Add Value

Lead development of the Project Ares “Range Service” and associated monitoring and administration components, a critical piece of Project Ares that is responsible for on-demand orchestration and configuration of cyber range environments, including architecting, implementing, and establishing test cases.
Drive technical decisions and establish best practices for RESTful API development using standards like OpenAPI
Mentor junior engineers on the team and foster an empathetic and collaborative development environment
Design and implement scalable services in TypeScript that integrate with Azure cloud services
Create and maintain comprehensive API documentation for internal and external stakeholders
Conduct code reviews to maintain high-quality standards and knowledge sharing
Establish monitoring and alerting for production services to ensure high availability
Proactively identify and address technical debt to maintain system health
Collaborate with stakeholders and other engineering teams to understand requirements and deliver effective solutions

What You'll Need to Be Successful in This Role

Required Skills & Experience

6+ years of professional software development experience with at least 3 years of full-stack development
Strong proficiency in Typescript and React
Experience building RESTful APIs
Understanding of service-oriented design principles
Familiarity with API-first development approaches
Experience writing automated tests
Experience using CI/CD pipelines
BS in Computer Science, Software Engineering, related field, or equivalent industry experience

Preferred Skills & Experience

Experience with Azure ARM templates and infrastructure as code
Experience with Azure cloud services
Familiarity with Azure SDK
Proven track record of technical leadership in small teams
Experience with event-driven architecture patterns
Knowledge of database technologies including PostgreSQL and NoSQL solutions
Experience with messaging systems such as 0MQ or Azure Service Bus
Experience with SaltStack and/or Ansible
Familiarity with infrastructure monitoring and logging solutions
Experience designing and implementing CI/CD pipelines, GitHub Actions

Personal Attributes

Excellent verbal and written communication skills
Proactive problem-solver with strong analytical thinking
Self-motivated with the ability to work effectively in a remote environment
Collaborative mindset and team-oriented approach
Adaptable to changing priorities and requirements

Benefits & Perks

Competitive salary ($165,000–$185,000) based on experience
Comprehensive health, dental, and vision insurance
401(k) retirement plan with company match
Generous paid time off policy
Remote-first work environment with flexible scheduling
Professional development opportunities and training budget
Modern equipment and software stipend
Regular team building events and activities
Career growth opportunities in a rapidly expanding company
Work on cutting-edge technology in the cybersecurity field

Why Circadence?

At Circadence, you'll help shape the future of cybersecurity training by working with a passionate team building a platform used to train national security professionals, enterprise defenders, and future cyber leaders. We value innovation, autonomy, and purpose—join a fast-growing team of top-tier AI researchers, software engineers, and curriculum designers to change the world of cybersecurity training.

Circadence Corporation is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee based on age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status, or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law.