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Transforming Visionary Ideas into Market-Ready Solutions
Senior Full Stack Engineer – React.js
Location
United States
Posted
156 days ago
Salary
0
Seniority
Senior
Job Description
Senior Full Stack Engineer – React.js
Spark Eighteen
• Help build a world-class UI/UX for our platform using React, TypeScript, and Asterisk, our custom design system. • Play a key role in crafting clean, maintainable, secure, and high-performing front-end solutions while modernizing existing codebases to improve performance and development velocity. • Collaborate closely with cross-functional stakeholders to solve complex engineering challenges, build reusable and responsive UI components, manage application state, optimize performance, and contribute to API design where needed. • Proactive problem-solver who thrives in dynamic environments, values feedback and collaboration, and is excited to contribute to a passionate, high-performing team building impactful products.
Job Requirements
- 6+ years of experience shipping enterprise-grade products
- 6+ years of extensive hands-on experience and strong proficiency in JavaScript, TypeScript, React, and CSS
- Experience building highly reusable UI components and writing comprehensive unit and integration tests
- Experience with API design and development
- Experience working with modern software engineering development and automation tools such as Git and CI/CD pipelines
- Strong problem-solving skills with the ability to dive deep, experiment, learn quickly, and independently drive solutions
- Demonstrated ability to translate complex business requirements into elegant, user-centric software solutions
- Ability to work flexibly with UI/UX specifications and requirements, delivering precise behavior, look and feel, and contributing to the creation of supporting backend APIs
- Experience as a meaningful contributor to data-driven architectures at scale
- Humble yet opinionated mindset, with the ability to adapt when better solutions emerge
- Active collaborator who seeks and provides feedback early and often, and thrives in a team-oriented development process
- Comfortable working both independently and within a collaborative team environment
- Ability to make measurable progress in dynamic environments with competing priorities
- Excellent written and verbal communication and interpersonal skills
- Experience with AI technologies such as CoPilot, Cursor, MCP servers, agentic platforms, or similar tools
- Experience with Node.js, Tailwind, TanStack, Zod, and Vue
- Experience in the no-code/low-code industry
- A degree in Computer Science or Software Engineering
- Experience working with custom design systems and accessibility best practices
Benefits
- Comprehensive insurance coverage that gives you peace of mind, so you can focus on doing your best work
- Flexible work arrangements designed to support sustained productivity, personal well-being, and work-life balance
- Continuous learning and accelerated skill development through hands-on projects and mentorship from experienced industry leaders
- Global client exposure across 20+ countries, offering real-world experience with diverse markets and business environments
- Opportunity to work on high-impact, large-scale projects that have collectively generated over $1B in measurable business value
- Competitive, market-aligned compensation packages that recognize performance, expertise, and long-term contribution
- Monthly demo days that celebrate innovation, showcase your work, and give you a real voice in what we build
- Annual recognition programs and performance-driven awards in a truly meritocratic environment
- Referral bonuses that reward you for helping grow a strong, like-minded team
- A strong problem-solving culture with opportunities to tackle meaningful, real-world challenges
- A positive, people-first workplace that supports happiness, balance, and long-term growth
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