Your talent agent for your entire career. Connecting you to startups backed by a16z, Index, YC & more.
Founding Full-Stack iOS Engineer
Location
United States + 1 moreAll locations: United States | United Kingdom
Posted
10 days ago
Salary
$150K / year
Seniority
Mid Level
Job Description
Founding Full-Stack iOS Engineer
Clera
Role Description This is a founding engineering opportunity at a Y Combinator Spring 2026 consumer wearable startup operating at the intersection of emotional intelligence and computational neuroscience. The company is building a wearable device that measures and surfaces real-time emotional-state data — think energy, mood, and focus — derived from a proprietary inference model processing over 150 audio and biometric signals. Prototypes are already on users' wrists. As the Founding Full-Stack iOS Engineer, you will own the companion iOS app end-to-end — the primary surface through which users experience and act on their emotional data. This is a high-ownership, high-impact role with a direct line to the founding team and a clear path to leading the engineering org as the company scales. What You'll Do - Own the companion iOS app from architecture through to polished, consumer-grade delivery - Integrate and surface real-time emotional-state outputs (e.g. energy, mood, focus scores) from the backend inference model into the app experience - Build and iterate on UI/UX that makes complex neuroscience outputs intuitive and actionable for everyday users - Collaborate closely with research and hardware to shape the full product experience - Lay the technical foundations and engineering culture as an early founding hire Qualifications - Strong, proven experience shipping consumer iOS apps (Swift) — a few years minimum; not a role for recent graduates - Full-stack capability: comfortable owning both the mobile layer and relevant backend/API integration - Track record of building polished, high-quality consumer-grade mobile experiences - Ability to move fast and operate with high autonomy in an early-stage environment Requirements - Experience with health, fitness, or wearable app ecosystems (HealthKit, CoreMotion, Bluetooth LE, etc.) - Interest in biometrics, emotional intelligence, or computational neuroscience - Prior founding or very early-stage startup experience Benefits - Salary: ~$150,000 USD (San Francisco) / ~£75,000 GBP (London) - Equity: Up to 1–2% — meaningful founding-level ownership - Seed-stage company with angel and strategic investment; recently completed a funding round - Visa sponsorship: Not available for new sponsorships; visa transfers are welcome Location Primary location is San Francisco, CA, with flexibility for London, UK or remote candidates depending on experience and fit. The team is small (5 people) and moves quickly — proximity to the founding team is valued.
Related Guides
Related Job Pages
More Full-stack Engineer Jobs
• Responsible for designing, supporting, and continuously improving enterprise B2B/EDI and managed file transfer solutions • Own end-to-end reliability of document/file exchanges using IBM Sterling B2B Integrator and Connect:Direct (SFTP/FTP) • Partner with internal teams and external vendors to resolve issues • Deliver automation and enhancements through Java/Spring and UNIX scripting to improve stability, throughput, and operational efficiency in a 24x7 environment • Manage high-volume B2B/EDI operations in a 24x7 environment using IBM Sterling B2B Integrator (B2Bi), ensuring platform stability, performance, and uptime • Design, build, and maintain B2B messaging flows including communication protocols, routing, processing rules, and end-to-end document lifecycle handling • Ensure on-time, accurate EDI document transmission and processing by partnering with internal/external communications teams and proactively addressing throughput and failure points • Implement and support EDI/B2B mappings and drive new trading partner/vendor onboarding, including setup, testing, certification, and production cutover • Implement and administer Connect:Direct secure file transfer solutions, including configuration, scheduling, monitoring, and troubleshooting of processes across systems • Troubleshoot complex integration and transmission issues across host systems, servers, and external partner connections; perform root-cause analysis and implement durable fixes • Partner with third-party vendors to resolve platform/software defects, coordinate escalations, and ensure timely remediation with clear root-cause understanding • Monitor EDI and communication subsystems and respond to alerts, driving rapid triage, restoration, and stakeholder communication as needed • Collaborate with production support and engineering teams to deliver strong incident, problem, and change management outcomes (including post-incident follow-ups) • Drive operational excellence and automation, reducing recurring incidents through standardization, self-healing/automated recovery, and continuous improvement initiatives • Create and maintain technical and operational documentation (runbooks, onboarding guides, mappings/flows, support procedures) to ensure consistency and knowledge continuity
Senior Software Engineer – App Observability
Honeycomb.ioThe fastest way to visualize, understand and debug software. Find the critical issues that logs and metrics can’t see.
• Design, build, and deliver backend systems and APIs. • Build and maintain full-stack product features. • Provide technical leadership. • Collaborate across disciplines. • Support and own your software in production. • Communicate clearly and multiply your impact.
Senior Software Engineer – App Observability
Honeycomb.ioThe fastest way to visualize, understand and debug software. Find the critical issues that logs and metrics can’t see.
• Design, build, and deliver backend systems and APIs. • Build and maintain full-stack product features. • Provide technical leadership. • Collaborate across disciplines. • Support and own your software in production. • Communicate clearly and multiply your impact.
Software Engineer
SAPSOL Technologies Inc. : Systems and Process Solutions for your EnterpriseSystems and Process Solutions for your Enterprise
• Design, develop, and maintain high-quality, scalable, performant, and testable software solutions. • Build and enhance customer-facing applications that directly support strategic company initiatives. • Contribute to technical architecture and engineering decisions that shape the future of our platform. • Collaborate closely with product managers, designers, and engineers to deliver impactful features. • Review pull requests and provide thoughtful, constructive feedback to teammates. • Participate in pair programming and knowledge-sharing activities across the team. • Deploy production-ready code and support applications throughout the software development lifecycle. • Continuously learn and explore new technologies, design patterns, and engineering practices.
