Staff Software Engineer (Attack & User Emulation Team)

SimSpace Corporation

Job Overview

Location

Remote - U.S.

Job Type

Full-time

Full Job Description

📋 Description

• We are looking for a Staff Software Engineer for our Attack and User Emulation (AUE) Team to provide expertise in microservices, event-driven messaging systems, Spring Boot, and containerization.
• In this role, you will drive delivery of various containerized microservices that provide the core activity emulation services of our cyber ranges.
• These services allow our users to simulate real-life cyber attacks and user personas to add high fidelity realism to our products.
• You'll be responsible for setting technical direction across the team, guiding engineering practices, system architecture, and cultivating a culture of continuous improvement.
• Your mentorship will be key in helping senior and mid-level team members grow, while you contribute directly to code, design, and architecture.
• You will be expected to operate with a high degree of autonomy, define solutions to ambiguous problems, and influence technical decisions beyond your immediate team.
• Design, develop, and maintain the core services for offensive cybersecurity and user emulation in our range simulation environment, focusing on scalability, performance, and fault tolerance.
• Own and drive end-to-end technical projects, from requirements gathering and architecture design to deployment.
• Mentor and support engineers on the team; promote a collaborative culture and guide the team in coding best practices, testing, and architectural design.
• Define and evangelize technical architecture, system design, and best practices through documentation, design reviews, and team forums to ensure knowledge sharing and alignment.
• Collaborate with Product Managers and UX Designers to create user-centered solutions that are technically robust and aligned across all departmental priorities and the needs of the business.
• Take ownership of cross-team outcomes by ensuring the AUE team's technical decisions, interfaces, and delivery commitments reflect the needs of the broader organization, not just internal team goals.
• Partner with other engineering teams as both a consumer and provider of APIs and services, treating those teams as customers with real needs, SLAs, and feedback loops.
• Build and maintain strong working relationships with partner engineering teams, proactively communicating changes, soliciting feedback on interfaces and contracts, and ensuring the AUE team is a reliable, high-trust dependency for the rest of the organization.
• Conduct code reviews and provide constructive feedback to ensure code quality, performance, and adherence to company standards.
• Implement robust monitoring and alerting strategies to maintain high uptime and quick response to potential system issues.
• Ensure services meet security and compliance standards by integrating appropriate controls into the development lifecycle.
• Identify gaps in tooling, processes, or architecture before they become problems, and drive the initiatives needed to address them.

🎯 Requirements

• 8+ years of hands-on experience in software development with proven skills in building large-scale, distributed systems.
• Expertise in an OOP-based language such as Java or Kotlin, with a demonstrable knowledge of API design, integration, and best practices.
• Experience with event-driven architectures and messaging systems (e.g., Kafka, RabbitMQ, or similar).
• Proven experience with unit testing, integration testing, and deploying services in Kubernetes or a similar container orchestration platform.
• Demonstrated ability to design, build, and operate fault-tolerant systems, including experience in requirements gathering, risk identification, project breakdown, and sequencing for efficient development.
• Strong communication skills to present and articulate designs to technical and non-technical audiences, including experience leading architecture reviews and influencing technical direction.
• Understanding of offensive security methods and tactics.
• Knowledge of networking concepts including DNS, TCP/IP, routing protocols.

🏖️ Benefits

• Compensation. Base salary range: $185,000 – $260,000, reflecting our confidence in your expertise and impact, with the opportunity for annual bonuses tied to company performance and individual contributions.
• Health & Wellness. Comprehensive medical, dental, and vision benefits, plus savings plans—coverage starts on day one!
• Mental Health Support. Access to company-paid counseling, coaching, and resources for you and your family through Spring Health.
• Financial Well-Being. Plan for your future with a 401(k)-retirement savings plan featuring a company match.
• Parental Leave. Paid leave plans to support you and your loved ones during life’s most important moments.
• Ownership Opportunities: Equity stock options at hire, with annual performance-based grants—become an invested stakeholder in our shared success.
• Referral Rewards: Earn $1,500–$3,500 for every qualified hire through our employee referral program.
• Peloton Interactive Wellness Program: Full- and partial- subsidized membership plans and equipment discounts to help you reach your personalized wellness goals.
• Continuous Learning: Access a LinkedIn Learning membership to prioritize your personal and professional development.
• Social Connections: Monthly reimbursements for meaningful connections with teammates through our SocialSpace Community.
• Extra Perks: Legal plan coverage, pet insurance, wellness reimbursements, and more to simplify life’s details.
• Semi-flexible hours, with the expectation that you overlap the main part of the day to meet deadlines, collaborate with colleagues and attend key meetings.

Skills & Technologies

Java

Kotlin

Spring

Kubernetes

REST

Senior

Remote

$185k-260k

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SimSpace Corporation

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About SimSpace Corporation

SimSpace Corporation provides cyber range software that lets enterprises model, test and train on replica networks. Its platform continuously mirrors production environments, offering on-demand labs for red/blue teams, compliance validation and workforce development. Fortune 500, defense and MSSP customers use the solution to reduce security risk, accelerate incident response and measure cyber readiness. Founded in 2015 and headquartered in Boston, the company is privately held and backed by venture investors focused on critical infrastructure protection.

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