Senior Full Stack Engineer - Core UX

Recruiting from Scratch is a specialized talent firm dedicated to helping companies build exceptional teams. Title : Senior Full Stack Engineer – Core UX Venture-Backed Growth-Stage Company Office Type : Hybrid Salary : $185,000–$225,000 + Significant Equity

We're representing a venture-backed AI company building professional-grade software for the insurance industry. Its platform helps insurers improve underwriting and other critical workflows by combining AI with software that can read, reason, decide, and act inside real business processes. The company's products are already in production with leading insurers, and the team includes engineers and operators from organizations such as Facebook, Palantir, Google, Amazon, Uber, Mastercard, and McKinsey. This role sits on the Core UX team and focuses on making the product feel polished, consistent, responsive, and premium for end users.

Improve and refine existing product functionality to deliver a more polished, intuitive user experience. Own full-stack product improvements spanning frontend behavior, backend support, and production rollout. Focus closely on layout, interaction design, responsiveness, visual consistency, and overall product quality. Build and improve frontend experiences using a modern framework, preferably React. Work across JavaScript, TypeScript, Python, and related technologies as needed. Improve application performance in ways that directly affect end users. Partner with full-stack, data, ML, and DevOps engineers on product and platform improvements. Build scalable backend systems and APIs that support user-facing functionality. Work with serverless and cloud infrastructure, including environments using Lambda and EC2. Work with relational databases, ideally PostgreSQL. Own projects independently and drive them through completion with minimal oversight.

5+ years of professional software engineering experience.

Strong full-stack engineering background with meaningful frontend depth.

Experience improving and polishing existing product functionality rather than only building greenfield features.

Strong experience with a modern frontend framework, preferably React.

Proficiency with JavaScript, TypeScript, Python, or a comparable object-oriented language.

Strong software engineering fundamentals across system design, debugging, and problem-solving.

Experience building or supporting cloud-based applications.

Comfortable working with relational databases, ideally PostgreSQL.

Track record of creating premium, highly polished user experiences.

Strong understanding of UI consistency, responsiveness, interaction patterns, and frontend performance. Experience collaborating across frontend, backend, data, and infrastructure teams. Experience with LLMs or generative AI. Background building B2B or enterprise software where reliability and usability both matter. Significant equity options package.

Hybrid work environment.

100% covered medical insurance.

100% covered dental and vision insurance.

Mobile phone stipend.

Best suited for a full-stack engineer who enjoys iterative product improvement, frontend polish, and making an established product feel exceptionally well crafted.