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Seed Stage, Fintech, Sr. Frontend/Full Stack Engineer

StackedSP

United States only

About the CompanyCompany Size: < 10 PeopleIndustry: FinTech, Marketplaces, SoftwareFounding Year: 2023Stage: Early-Stage StartupFunding: Backed by Accel, Neo, and notable angel investors

We’re looking for a high-impact Founding Engineer to:

  • Deep React JS, Next.js, and TypeScript
  • Own all engineering infrastructure and build the product from the ground up.
  • Design and implement robust, end-to-end systems to support trading of $100M+.
  • Architect frontend foundations and develop core UI/UX components using React, Next.js, and TypeScript.
  • Define UX/UI patterns and collaborate with product and design teams to create seamless user experiences.
  • Build new features, integrations, and interfaces while maintaining scalability and performance.
  • Contribute to technical decisions, product strategy, and team culture in a high-ownership, low-bureaucracy environment

What you'll need:

  • 4+ years of experience as a software engineer, with strong CS fundamentals in data structures, algorithms, and systems design.
  • Deep expertise in frontend technologies, including React, Next.js, and TypeScript.
  • Ability to write clean, scalable, and well-tested code with a strong testing discipline.
  • Experience building full applications or platforms from scratch.
  • Comfort working in ambiguity and solving complex technical challenges.
  • Familiarity with backend technologies like Go, Python, and cloud infrastructure (AWS, GCP) is a plus.
  • Passion for FinTech, marketplaces, and high-performance systems

What you'll get:

  • Competitive salary & meaningful equity in a fast-growing early-stage startup.
  • Work directly with top-tier founders from Google, Rubrik, and Morgan Stanley.
  • Remote-first work environment with quarterly trips to Austin.
  • Twice-yearly off-sites for team bonding and strategy sessions.

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About the job

Apply before:

Apr 12, 2025

Posted on:

Feb 11, 2025

Job type:

Full Time

Experience level:

Senior

Location requirements:

Skills:

ReactNext.jsTypeScriptGoPythonAWSGCPUX UI DesignSoftware EngineeringData StructuresAlgorithmsSystems DesignCloud InfrastructureFrontend TechnologiesScalabilityPerformance

About the company

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StackedSP

www.stackedsp.com