Senior Software Engineer - Frontend (Attack & User Emulation)
SimSpace Corporation4 hours ago
Remote, Costa RicaSenior
Responsibilities
- Design, build, and maintain high-performance web applications using React and TypeScript.
- Lead end-to-end frontend feature execution, including real-time streaming displays and AI/MCP integrations.
- Improve client-side performance, code reusability, testing coverage, and WCAG accessibility.
- Develop interfaces for large datasets, interactive network topology, and agentic workflows.
- Collaborate with UX designers, product managers, and backend engineers on feasibility and API contracts.
- Conduct code reviews, promote frontend engineering standards, and mentor team members.
Requirements
- At least 6 years of professional experience building and shipping complex, scalable web applications.
- Deep expertise in React, TypeScript, modern state management, and web performance optimization.
- Experience integrating real-time data streams such as WebSockets and SSE, plus complex backend or AI protocols.
- Strong knowledge of unit, integration, and end-to-end testing strategies and WCAG accessibility standards.
- Ability to evaluate trade-offs among UX quality, performance, and delivery speed.
- Preferred: experience displaying ML/RL decisions, confidence metrics, or agentic behaviors in user interfaces.
- Preferred: familiarity with Storybook, Figma workflows, and complex data visualization libraries.
- Preferred: exposure to cybersecurity concepts, Docker, Kubernetes, or CI/CD pipelines.
Benefits
- Access to in-house training, internal and external learning platforms, cyber conferences, industry events, and dedicated skill-development time.
- Opportunities for internal mobility, promotions, and total rewards growth.
- Remote or office-based collaboration options.
- Equal opportunity employer with reasonable accommodations available.
Tech Stack
Categories
About SimSpace Corporation
SimSpace builds cyber ranges and a live-fire simulation platform used by governments, militaries, and large enterprises to train cyber teams, validate defenses, and test AI agents. The company sells software and expert services for training, threat emulation, and technology evaluation in replicas of production environments. Founded in 2015 by veterans of U.S. Cyber Command and MIT Lincoln Laboratory, SimSpace is privately held and headquartered in Orlando, Florida.