Senior UX Designer

SimSpace Corporation • Boston, MA

1d • Hybrid

About The Position

SimSpace serves as an AI Proving Ground where organizations can confidently train, test, and outmaneuver adversaries in any environment. Trusted by allied governments, militaries, enterprises, and research institutions worldwide, SimSpace enables adaptive, AI-ready defenses that stay ahead of evolving threats. Founded in 2015 by experts from U.S. Cyber Command and MIT Lincoln Laboratory, the platform unifies training, testing, and validation in a realistic, live-fire simulation—helping teams evaluate security investments, optimize performance, and compress cyber readiness cycles from months to days. SimSpace is seeking a Senior UX Designer to help shape the future of our application suite. This person will reside in the Boston area, mainly work remotely and at times join the team for meetings in-person. This role is ideal for a designer who thrives in complex domains, enjoys turning ambiguity into clarity, and can confidently partner with Product Management and Engineering to define and deliver exceptional user experiences. Success in this role requires strong systems thinking, a customer-centered mindset, and the ability to balance rapid exploration with thoughtful execution. You'll work across challenging enterprise workflows, contribute to our evolving design system, and help drive usability and consistency throughout the application.

Requirements

• Experience designing complex enterprise software products.
• Strong portfolio demonstrating systems thinking, workflow design, and problem-solving ability.
• Experience working within established design systems and pattern libraries.
• Ability to balance customer needs, business goals, technical constraints, accessibility requirements, and platform consistency.
• Expertise with Figma and modern UX design and prototyping tools.
• Experience conducting user research and validating design decisions through customer feedback.
• Strong communication, facilitation, and stakeholder management skills.
• Experience collaborating closely with Product Management and Engineering throughout the product development lifecycle.
• Demonstrated ability to drive work independently and navigate ambiguity.
• Experience using AI tools as part of everyday design, research, or problem-solving workflows.

Nice To Haves

• Experience contributing to or evolving a design system.
• Experience in cybersecurity, networking, infrastructure, developer tools, SaaS platforms, or other highly technical domains.
• Familiarity with accessibility standards and inclusive design practices.
• Degree in Design, Human-Computer Interaction, Human Factors, Psychology, or a related discipline.

Responsibilities

• Partner closely with Product Managers and Engineers to discover, define, and deliver valuable customer solutions.
• Translate complex workflows, systems, and technical concepts into intuitive and effective user experiences.
• Use rapid, low-fidelity exploration techniques—including sketches, diagrams, workflows, and prototypes—to evaluate ideas, align stakeholders, and accelerate decision-making.
• Design end-to-end experiences through information architecture, user flows, wireframes, prototypes, and high-fidelity designs.
• Conduct user research, usability testing, and design validation activities to inform design decisions.
• Independently lead UX initiatives and drive solutions for complex product challenges.
• Apply established design patterns and contribute to the evolution of our design system to improve consistency, accessibility, and scalability.
• Collaborate with fellow designers through critique, feedback, and shared problem-solving.
• Present design work and rationale clearly to stakeholders, leadership, and cross-functional teams.
• Leverage AI-powered tools and emerging technologies to accelerate research, ideation, design exploration, documentation, and execution.

Benefits

• Base salary range: $155,000 - $220,000
• Opportunity for bonuses tied to company performance and individual contributions.
• Comprehensive medical, dental, and vision benefits
• Savings plans—coverage starts on day one!
• Company-paid counseling, coaching, and resources for you and your family through Spring Health.
• 401(k)-retirement savings plan featuring a company match.
• Unlimited vacation
• Dedicated health & wellness days.
• Paid leave plans for parental leave.
• Equity stock options at hire, with annual performance-based grants.
• Employee referral program ($1,500–$3,500 for every qualified hire).
• Peloton Interactive Wellness Program (Full- and partial- subsidized membership plans and equipment discounts).
• LinkedIn Learning membership.
• Monthly reimbursements for meaningful connections with teammates through our SocialSpace Community.
• Legal plan coverage.
• Pet insurance.
• Wellness reimbursements.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed