Full Stack Engineer, E-Commerce

Cymbiotika; San Diego (CA); On-site; USD 100,000 - 120,000; Full time

Benefits offered by this job

Medical, dental, vision

401(k) with match

Paid holidays & PTO

Flexible Fridays (WFH)

Product discounts

Catered team lunches

Team-building events

Job summary

Cymbiotika seeks a hands-on, mid-level Full Stack Engineer to operate, maintain, and evolve our e-commerce platform. You’ll collaborate with in-house engineers, an agency, and AI coding agents to build fast, reliable storefront experiences that drive conversion and(subscription) growth.

You’ll own features end-to-end from requests to production, working on product pages, cart, checkout, and integration with Recharge, Klaviyo, and analytics while improving performance and reliability.

Qualifications

• 3–6 years building production e-commerce platforms with real traffic.
• Experience with Shopify headless frameworks (Hydrogen/Remix/Next.js Commerce).
• Proficient in TypeScript and React, incl. SSR and modern web app patterns.
• Experience with Recharge or similar subscription platforms and pricing.
• Familiarity with AI coding agents and secure usage practices.
• Knowledge of Git workflows, PRs, CI/CD and testing.

Responsibilities

• Build, maintain and evolve a headless Shopify storefront (Hydrogen on Oxygen).
• Develop product pages, cart, checkout and promotions with pricing parity.
• Integrate Recharge, Klaviyo, reviews, search, analytics and personalization.
• Collaborate with marketers, CX and external agencies; code reviews and standards.
• Use AI coding agents in daily workflows; manage branches and previews.
• Follow CI/CD processes, pre-prod environments and release sign-offs.

Skills

Shopify development

TypeScript & React

Headless commerce

AI coding tools

CI/CD & release

Performance optimization

Tools

Sanity CMS

Shopify APIs

Recharge

Klaviyo

Hydrogen

Vercel/PostgreSQL

Job description

About Cymbiotika

At Cymbiotika, we believe that wellness starts with trust. That’s why we’re committed to creating supplements that are not only effective but also transparent. From the moment you pick up one of our products, you’ll know exactly what’s inside—no hidden ingredients, no confusing labels. We take pride in using only the highest-quality ingredients, carefully sourced and backed by science, to ensure you’re getting the best of nature and innovation in every supplement.

We understand that health is personal, which is why our supplements are designed to work with your body, not against it. By focusing on bioavailability and using advanced liposomal delivery systems, we ensure that your body can absorb and use the nutrients to their fullest potential. Our goal is simple: to help you feel your best, with products you can trust, made with ingredients you feel good about.

With Cymbiotika, you’re not just taking a supplement—you’re joining a community of people who value wellness, science, and the power of transparency. We’re here to empower you on your journey to better health, every step of the way.

Role Overview

Cymbiotika sells through retail partners and several other channels. Cymbiotika.com is our direct-to-consumer store: a Shopify storefront we own end to end, where most customers shop on their phones.

We're looking for a hands-on, mid-level Full Stack Engineer to help operate, maintain, and evolve our e-commerce platform. You'll work alongside in-house engineers, an outside development agency, and AI coding agents to build and improve the experiences our customers interact with every day.

Your work directly impacts business performance, including conversion, average order value, subscription uptake, site speed, uptime, and the accuracy of pricing and analytics. You'll take features from request to production, release them safely, and help keep the storefront fast, reliable, and stable through our biggest promotions.

This role offers the opportunity to own features end to end, contribute to architectural improvements, strengthen engineering standards, and work closely with the teams responsible for determining what gets built.

Key Responsibilities

Storefront Development & Architecture

• Platform Development: Build, maintain, and enhance our headless Shopify storefront using Hydrogen on Oxygen, React Router 7, TypeScript, Sanity CMS, and Shopify's Storefront and Admin APIs. Work within the existing architecture while identifying opportunities for improvement and reducing technical debt.
• Commerce & Checkout Experiences: Develop and maintain critical customer experiences, including product pages, buy boxes, cart, and checkout. Ensure the prices customers see match what they're charged, working with our promotions engine, Shopify Functions, Recharge subscriptions, and member pricing for our ARISE loyalty program.
• Third-Party Integrations: Implement and maintain integrations across our application ecosystem, including Recharge, Klaviyo, reviews, search, personalization, and analytics tools. Evaluate integrations for performance impact, reliability, and business value.

Engineering Collaboration & Development Practices

• Feature Planning & Execution: Translate requests from marketing, merchandising, and Customer Experience (CX) into well-scoped development work. Identify technical requirements, communicate trade-offs, and ask the right questions before implementation.
• Cross-Team Collaboration: Work with internal engineers and external development partners, participate in code reviews, and help maintain high standards for code quality, testing, and design implementation.
• AI-Assisted Development: Use AI coding agents, including Claude Code, Codex, and similar tools, as part of daily development workflows. Follow repository standards, isolate agent-generated changes in branches and preview environments, validate output against evidence, and protect credentials and customer information.
• CI/CD & Release Management: Follow established development and release processes, including pull requests, required CI checks, preview environments, production sign-offs, release freezes, and rollback procedures. Ensure changes are tested and approved before reaching customers.

Performance, Optimization & Growth

• Experimentation & Conversion Optimization: Build, deploy, and measure experiments involving buy box variants, promotional offers, and page layouts. Ensure accurate tracking and evaluate results based on measurable business outcomes.
• Site Performance & Reliability: Monitor and improve Core Web Vitals, uptime, and application error rates. Prioritize mobile performance and maintain stability during high-traffic periods.
• Technical SEO: Support technical search optimization through structured data, Google Merchant Center feeds, crawl budget management, and bot traffic monitoring in collaboration with the content team.
• Analytics & Data Integrity: Support GA4, tag management, server-side events, and data pipeline integrations. Investigate tracking discrepancies and help ensure accurate, reliable reporting.

Production Operations, Security & Reliability

• Launch & Promotional Readiness: Prepare the storefront for Black Friday, major campaigns, and promotional events through pricing validation, monitoring, testing, and rollback planning.
• Incident Response & Troubleshooting: Investigate production issues using application error tracking, edge logs, and other diagnostic tools. Identify root causes, implement fixes, and document findings to help prevent recurrence.
• Security & Compliance: Follow secure development practices, including secrets management, least-privilege access, and privacy and consent requirements across implemented features and integrations.

Additional Duties:

Perform other related duties, responsibilities, and special projects as assigned based on business needs and organizational priorities.

Onsite Collaboration:

This role requires regular onsite presence to support in-person collaboration, effective communication, cross-functional teamwork, and coordination with internal teams and external partners to achieve business objectives.

Qualifications

• Professional Experience: 3-6 years of experience building, deploying, and maintaining production e-commerce platforms or web applications supporting real traffic and revenue.
• Shopify Development: Experience with Shopify and headless commerce frameworks such as Hydrogen, Remix, or Next.js Commerce, including Shopify's Storefront and Admin GraphQL APIs. Familiarity with checkout extensibility or Shopify Functions is highly valued.
• TypeScript & React: Strong proficiency in TypeScript and React, including server-side rendering, streaming, caching strategies, and modern web application architecture.
• Subscription Commerce: Experience with Recharge or similar subscription platforms, with an understanding of how subscription pricing, promotions, and loyalty programs interact with checkout.
• AI Development Tools: Practical experience using AI coding agents as part of daily development, including task definition, code review, validation, and secure usage practices.
• Software Delivery: Experience with Git-based workflows, pull requests, automated testing, preview environments, and CI/CD release processes.
• Business & Performance Awareness: Understanding of how technical decisions affect conversion, average order value, customer experience, and site performance.
• Communication & Collaboration: Ability to communicate clearly and work effectively with engineers, marketers, external agencies, and cross-functional stakeholders.

Preferred Qualifications

• Experience with Rust or WebAssembly for Shopify Functions.
• Experience with headless content management systems, particularly Sanity.
• Familiarity with Vercel, PostgreSQL, or related infrastructure and data technologies.
• Experience implementing loyalty programs, server-side tagging, and consent management solutions.
• Previous experience working with health, wellness, or direct-to-consumer brands.

Work Location & Schedule

This position follows an enforced onsite schedule, requiring team members to be present in our San Diego, California office at least four days per week (Monday-Thursday). Fridays are available for remote work. This role also requires attendance at all in-person monthly team meetings and quarterly company events.

Physical Requirements

This role primarily involves office-based work and requires the ability to occasionally lift, carry, or move items up to 20-30 pounds, such as files or office supplies. Employees should be able to sit or stand for extended periods and perform frequent computer-based tasks, including prolonged exposure to a computer screen.

Compensation & Total Rewards

The salary range for this position is $100,000-120,000 annually. Final compensation will be determined based on experience, skills, and qualifications relevant to the role.

Cymbiotika offers a comprehensive total rewards package designed to support employee wellness, growth, and work-life balance. Benefits include medical, dental, and vision coverage with employer-paid plan options, 401(k) with company match, paid holidays and PTO, flexible work-from-home Fridays, wellness and fitness perks, employee product discounts, catered team lunches, team-building events, and additional lifestyle benefits!