Lead Software Engineer w​/Swift​/MERN Stack

Job Title: Lead SWIFT/MERN Stack Software Engineer
Job : 85663
Location: San Diego, California – Onsite/Some Hybrid

We are partnering with our client to locate a Lead SWIFT/MERN Stack Software Engineer. In this full‑time, direct hire, onsite (with some hybrid) permanent position for our extremely well‑funded startup, this role will lead all software engineering.

This role is hands‑on and high impact. You will define architecture, write production code, and take clear ownership of software decisions across the company. Initially this role will be a senior individual‑contributor role with technical leadership responsibilities, performing hands‑on coding for native iOS in Swift with RESTful web services interfaces. The backend is GCP/Mongo

DB. Medical device experience is required. This is not a traditional “people management” role, but you will matrix lead and mentor a firmware engineer and act as the technical authority for software. You will manage the group as it grows. You will work with ambiguity. You will make decisions without a checklist. You will be expected to figure things out and bring structure and relevant experience with you.

But most of all, you will have fun and be part of a team making a difference for human health.

• Own the architecture and technical direction for Siro’s web and mobile software
• Design, build, and maintain web interfaces (GCP) and supporting services
• Design, build, and maintain native iOS applications in Swift
• Act as the primary owner for cross‑functional software decisions
• Lead integration between software, firmware, and hardware systems
• Mentor the firmware engineering function as it relates to integration (this is NOT a firmware development or hardware engineering position), but experience interfacing with firmware engineering is a huge plus.
• Establish and evolve software development standards and best practices and CI/CD pipelines
• Review code and ensure quality, security, and maintainability

• Solid experience developing web interfaces to a medical device
• Medical device, ISO 13485/62304 standards experience
• Significant hands‑on native iOS development experience using Swift
• MERN stack (Mongo, Express/Nest, React, Node development experience)
• Experience owning software architecture end to end
• Experience working across web, mobile, and embedded or firmware‑adjacent systems
• Huge pluses; GCP (AWS ok), Kubernetes, CI/CD pipeline

$ – $
Flexible and significant, plus a 15% annual bonus

Work Environment

• The onsite office is very relaxed, shorts/flip flops, with culture fit being a huge factor in hiring. People assimilate and work well together. There will be some hybrid opportunity once acclimated.

Thank you for your interest in this opportunity. If you are selected to move forward in the process, we will contact you directly. If you do not hear from us, we encourage you to continue visiting our website for other roles that may be a good fit.

For more information about TEEMA and to consider other career opportunities, please visit our website at