Senior Software Engineer - Full Stack - Portal Platform

<h2>About the Role</h2> <p>Abnormal AI is looking for a Software Engineer to join the Portal Platform team. </p> <p>Our team’s mission is to uplevel the architecture across our different portals here at Abnormal: </p> <ul> <li>Customer Portal -  a gateway our customers use to interact with Abnormal</li> <li>End User portal - functionality for the users inside the companies that have purchased our product </li> <li>Demo portal - a tool to help showcase different combinations of our product by GTM teams</li> </ul> <p>Main themes include helping reach and maintain enterprise grade stability, security & usability for our customers while enabling application teams to easily develop & deploy their frontend components utilising AI-driven workflows.</p> <p>This role offers an exciting opportunity to join an AI-native company. You will own truly impactful, platform-level work, driving cross-functional influence that spans across product development and enabling our go-to-market teams.</p> <p>You'll join a team of experienced engineers, collaborating with them to design components &  drive execution. The ideal candidate is comfortable working with a distributed team & has worked in a full-stack capacity before in enterprise environments.</p> <h2>What you will do </h2> <ul> <li>Design and execute platform-level software projects from conception through launch, collaborating with senior engineers across the organization.</li> <li>Build and maintain backend services and APIs that power our portal experiences</li> <li>Build reusable frontend libraries, design systems, and developer tooling that accelerate feature delivery across product teams</li> <li>Own infrastructure concerns, including CI/CD pipelines, deployment automation, and observability for portal applications.</li> <li>Drive frontend performance, accessibility, and quality standards across our portal applications.</li> <li>Raise the bar of excellence in engineering, actively contributing to knowledge sharing within the team, and participating in professional development activities.</li> <li>Provide guidance and mentorship for junior members of the team</li> <li>Help accelerate the teams with their changes across different realms of front-end development </li> </ul> <h2>Must Haves </h2> <ul> <li>6+ years of experience as a software engineer, with a track record of owning and delivering complex, cross-team projects end-to-end</li> <li>Deep expertise in React and modern frontend architecture (state management, performance tuning, build tooling, design systems)</li> <li>Strong backend proficiency in Python (Django) or TypeScript, with experience designing APIs and data models for scale</li> <li>Experience with cloud infrastructure (AWS, Kubernetes, CI/CD) and comfort operating production systems</li> <li>Demonstrated ability to influence technical direction — you've driven RFCs, architecture decisions, or platform migrations</li> <li>Experience mentoring engineers and raising the technical bar through code reviews, documentation, and knowledge sharing</li> &lt