Senior Software Engineer - Back End

Company: Senior Interior Designer
Location: Boston
Posted on: May 8, 2025

Job Description:

SimSpace launched in 2015 with a singular purpose - addressing the most urgent and sophisticated cybersecurity challenges to reduce risk for our most vulnerable and valuable infrastructure. The organizations around the world that we depend on every day to keep our loved ones safe and secure. Our healthcare facilities, schools, financial institutions, transit centers, grocery stores, and workplaces just to name a few. To deliver global resiliency, we provide an elite cyber range platform to curate unassailable cyber defenses, data driven decisions, cutting edge training labs, live attack scenarios, and extensive individual and dynamic team readiness training.SimSpace works as OneTeam to elevate humanity around the world. We are committed to continuously improving and delivering a cultivated member experience whether that is accomplished through focusing on supporting our client's teams or our own mission driven SimSpacers.We are an international company headquartered in Boston's Fort Point in the U.S. If you are interested in elevating the technology and creative solutions necessary to secure and safeguard our future while working alongside others who share your passion for purpose and development, we want to meet you!Why should you choose a career at SimSpace?We are an organization that is focused on building our culture and mindfully enhancing our atmosphere everyday which is why we have collaborated on an integral value system. Our governing philosophy of being Human Centered is deeply embedded within our value system. We apply this philosophy to every one of our internal team members, external clients, and their customers.Our core values:

• Serve to Protect - We provide safe space, deliver on the mission, and elevate humanity
• Acquire Understanding - We seek and provide clarity 10x, cultivate comprehension, and believe information goes both all ways
• Operate as Innovators - We stay curious, practice consistency over intensity, and continue to be the change we need in the world
• Teamwork Without Borders - We are never alone, we solve for all, and keep people at the heart of everything we doWe are seeking a Senior Software Engineer, Back End (BE) to join our Engineering team. As a Senior Software Engineer, you will play a pivotal role in designing and developing core SOA-based services that drive the creation and simulation of cybersecurity environments. In this position, you'll lead a team through complex technical projects and collaborate closely with other teams to build high-quality, scalable solutions.You'll be tasked with ensuring our engineering practices are top-notch by guiding the team on best coding practices, system architecture, and cultivating a culture of continuous improvement. Your mentorship will be key in helping team members grow, while you contribute directly to code, design, and architecture.What you'll be doing as a Senior Software Engineer, BE at SimSpace:Developing and designing core SOA based services for the building & simulation of cybersecurity ranges as part of our NG Platform such as:
• A backend Service that owns domains of range design and deployment
• A common proxy service/interface for console access to Hypervisor and OS Hosted consoles for many different range providers.Leading the team through complex technical projects.Collaborate with other Engineers, User Experience Designers, and Product Managers.Help the team improve in culture, coding best practices, and systems architecture.Supporting and mentoring other engineers.Who you are:You feel comfortable leading, guiding, and delegating team initiatives.You enjoy solving complex problems & building solutions through collaborative methods.You're always open for feedback and are willing to give feedback to your colleagues.You understand that nothing is perfect and there is always room for improvement.You are driven off of goals and team outcomes.You're focused on the iterative delivery of high-quality well tested code.You're conscious of scalability, re-usability, but also realistic when it comes to trade-offs.What are the qualifications to apply? To be successful as a Senior Software Engineer, BE, you need to have:
• 6+ years of hands-on experience in software development with a solid focus on 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.
• 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 and project breakdown.
• Experience developing and operating services at scale.
• Network and infrastructure domain expertise.
• US Citizenship is required.Nice to have but not required:
• Experience with autonomous systems, multi-agent systems, and command and control (C2) frameworks is a plus, with a focus on managing complex systems and interactions.
• Some experience with Cybersecurity.
• A bachelor's degree in Computer Science or equivalent experience.We're proud to offer a competitive and comprehensive package designed to support your well-being, growth, and success:
  • Compensation: Base salary range: $150,000 - $210,000, 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.
  • Flexible Time Off: Take the time you need with unlimited vacation and dedicated health & wellness days. SimSpace provides flexible solutions to meet the diverse work-life needs of team members.
  • 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 fitness 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.SimSpace is an Equal Opportunity Employer:In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.SimSpace does not and shall not discriminate based on race, color, religion (creed), gender, gender expression and identity, age, national origin (ancestry), disability, marital status, sexual orientation, or military/veteran status, in any of its activities or operations. We are committed to providing an inclusive and welcoming environment for all members of our staff, clients, volunteers, subcontractors, vendors, and clients.Research shows that women and people from underrepresented groups only apply to jobs if they meet all of the qualifications. However, no one ever meets 100% of the qualifications. SimSpace encourages you to break that statistic and to apply. We look forward to your application!
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Keywords: Senior Interior Designer, Nantucket , Senior Software Engineer - Back End, IT / Software / Systems , Boston, Massachusetts