Sinclair Talent Solutions
Senior/Staff Frontend Engineer (San Francisco)
Sinclair Talent Solutions, San Francisco, California, United States, 94199
Senior / Staff Frontend Engineer | Product-Focused | Series A Startup
Were working with a Series A, AI-driven software company building a product that fundamentally changes how federal contractors create and submit proposals. This team is tackling complex, high-stakes workflows and turning weeks of compliance-heavy work into days through thoughtful product design and modern AI.
This role is ideal for a Senior or Staff-level Frontend Engineer who cares deeply about user experience, enjoys owning large parts of the product, and wants to help shape both the technical foundation and product direction at an early-stage company.
What youll do Build and ship core, customer-facing product features used by external users Own frontend architecture and help define best practices as the product scales Partner closely with product, design, and backend engineering to deliver polished, intuitive experiences Translate complex workflows into clean, usable interfaces Contribute to enterprise-grade software with high standards for performance and reliability Play a key role in an early-stage company, influencing both product direction and engineering culture
What were looking for 5+ years of product-focused frontend engineering experience Proven experience building consumer or business-facing products (not just internal tools) Background working at a Series A or early-stage startup, or a strong desire to work in that environment Track record of shipping high-quality software in fast-moving, ambiguous settings Senior-level ownership mindset, with Staff-level scope or ambition welcomed
Technical skills Strong proficiency in React, JavaScript, and TypeScript Deep understanding of modern web technologies and frontend architecture Strong UI/UX instincts and product design sensibility Experience building complex, data-rich interfaces Exposure to AI-powered features or large language models is a plus
Traits that matter Product-minded and deeply user-centric Comfortable taking ownership and making decisions Excited to build from the ground up at an early-stage startup Clear communicator who collaborates well across disciplines
If youre excited about building meaningful, user-facing products at a Series A company where your work has visible impact, this is worth a conversation.
This role is ideal for a Senior or Staff-level Frontend Engineer who cares deeply about user experience, enjoys owning large parts of the product, and wants to help shape both the technical foundation and product direction at an early-stage company.
What youll do Build and ship core, customer-facing product features used by external users Own frontend architecture and help define best practices as the product scales Partner closely with product, design, and backend engineering to deliver polished, intuitive experiences Translate complex workflows into clean, usable interfaces Contribute to enterprise-grade software with high standards for performance and reliability Play a key role in an early-stage company, influencing both product direction and engineering culture
What were looking for 5+ years of product-focused frontend engineering experience Proven experience building consumer or business-facing products (not just internal tools) Background working at a Series A or early-stage startup, or a strong desire to work in that environment Track record of shipping high-quality software in fast-moving, ambiguous settings Senior-level ownership mindset, with Staff-level scope or ambition welcomed
Technical skills Strong proficiency in React, JavaScript, and TypeScript Deep understanding of modern web technologies and frontend architecture Strong UI/UX instincts and product design sensibility Experience building complex, data-rich interfaces Exposure to AI-powered features or large language models is a plus
Traits that matter Product-minded and deeply user-centric Comfortable taking ownership and making decisions Excited to build from the ground up at an early-stage startup Clear communicator who collaborates well across disciplines
If youre excited about building meaningful, user-facing products at a Series A company where your work has visible impact, this is worth a conversation.