Senior Fullstack Software Engineer

Location - San Francisco CA - (On-site 5 Days Per Week)

Compensation - $200000 $400000 Base Competitive Equity

Visa - Visa Sponsorship Available - (H-1B Transfers Supported)

Company Stage - High-Growth Series A Startup ($14M Raised)

Industry - Consumer Technology Mobile Applications Web Platforms Gaming Marketplace FinTech Infrastructure Software

About the Company

The company is building the next generation of consumer technology products by creating highly engaging digital experiences across mobile and web platforms.

Its flagship products are redefining how consumers interact with digital collectibles gaming experiences and community-driven applications. With millions of users strong product-market fit and rapid growth the company is expanding its engineering team to build scalable web platforms and infrastructure that support future product expansion.

Backed by leading investors including General Catalyst and DraftKings Drive Fund the company has raised over $14M while achieving significant growth and building some of the fastest-growing applications in its category.

As a Senior Fullstack Software Engineer youll own the foundation of the companys web platform build consumer-facing experiences from 01 establish frontend engineering standards and collaborate closely with product and backend teams to deliver world-class user experiences.

This is a rare opportunity to join a small high-impact engineering team where youll have significant ownership over architecture decisions influence product direction and help define the future of consumer web and mobile experiences.

What Youll Do

• Build and own consumer-facing web applications from concept through production
• Establish the foundation and technical standards for the companys web platform
• Develop highly polished user experiences using React and TypeScript
• Build scalable frontend architecture supporting future web and mobile expansion
• Create responsive high-performance interfaces with thoughtful animations and micro-interactions
• Partner closely with backend engineers to design APIs data models and application architecture
• Build internal tools and dashboards that improve operational efficiency and decision-making
• Own frontend engineering best practices standards and development workflows
• Translate product ideas and designs into pixel-perfect production experiences
• Improve application performance reliability and user experience quality
• Contribute to technical decisions across frontend backend integrations and product infrastructure
• Work closely with Product Design and Engineering teams to ship high-impact consumer features

Ideal Candidate Background

Experience Requirements

• 5 years of fullstack software engineering experience
• Strong experience building consumer-facing web applications
• Experience shipping 01 products at fast-growing startups
• Experience owning major frontend platforms systems or product initiatives
• Experience building highly polished user-facing applications
• Experience working in high-agency ambiguous startup environments
• Demonstrated ownership of products or features from concept through launch
• Strong product intuition with a focus on user experience and business impact

Technical Requirements

• Deep expertise in React and TypeScript
• Strong understanding of modern frontend architecture patterns hooks and performance optimization
• Experience building complex consumer web applications
• Experience implementing polished UI with animations interactions and responsive design
• Strong JavaScript fundamentals and modern frontend development practices
• Experience partnering with backend engineers on API design and data modeling
• Experience building scalable frontend platforms and component systems
• Experience with application performance optimization and frontend reliability
• Experience working with modern web development tooling and infrastructure
• Ability to understand product requirements and translate them into high-quality technical solutions

Education

• No specific degree requirement
• Strong technical background and demonstrated engineering ability preferred

Soft Skills

• Strong communication skills
• High ownership mentality
• Excellent collaboration across Engineering Product and Design teams
• Comfortable operating in ambiguity
• Self-directed and proactive
• Strong product sense
• Customer-focused mindset
• Strong attention to detail
• High execution velocity
• Ability to independently prioritize and drive projects forward

Compensation & Benefits

• Base Salary: $200000 $400000
• Competitive Equity Package
• Fully On-site Environment (San Francisco CA)
• Visa Sponsorship Available (Transfers Supported)
• Significant ownership over consumer web platform development
• Opportunity to build products used by millions of users
• High-impact Senior Fullstack Engineering role
• Direct collaboration with engineering and product leadership
• Opportunity to define frontend architecture and engineering standards
• Exposure to consumer applications gaming and emerging technology products
• Rapid career growth opportunities
• High-performance craft-focused engineering culture

Why Join

This is an opportunity to build the web foundation behind one of the fastest-growing consumer applications in the market.

Youll create polished consumer experiences establish frontend architecture build internal platforms and collaborate with product and engineering teams solving challenging problems around scale performance and user engagement.

As a Senior Fullstack Software Engineer youll have broad ownership over critical product initiatives while helping define the next generation of consumer web and mobile experiences.