Full Stack Engineer, E-Commerce

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

Benefits offered by this job

Medical, dental, and vision coverage

401(k) with company match

PTO & holidays

Remote Fridays

Job summary

Cymbiotika LLC in San Diego, CA is seeking a hands-on mid-level Full Stack Engineer to operate, maintain, and evolve our e-commerce platform. You will collaborate with in-house engineers, an external development agency, and AI coding agents to build and improve the experiences our customers interact with daily.

Your work will own features end to end, contribute to architectural improvements, strengthen engineering standards, and work closely with teams responsible for deciding what gets built,

Qualifications

• 3–6 years of experience building, deploying, and maintaining production e-commerce platforms or web apps.
• Experience with Shopify and headless commerce frameworks such as Hydrogen, Remix, or Next.js Commerce.
• Strong proficiency in TypeScript and React, including SSR and modern web app architecture.
• Experience with Recharge or similar subscription platforms and loyalty programs.
• Experience using AI coding agents as part of daily development.
• Knowledge of Git-based workflows, PRs, automated testing, and CI/CD.
• Understanding of how technical decisions affect conversion and site performance.
• Ability to communicate clearly with engineers, marketers, and stakeholders.

Responsibilities

• Build, maintain, and enhance our headless Shopify storefront using Hydrogen on Oxygen, React Router 7, TypeScript, Sanity CMS, and Shopify APIs.
• Develop commerce and checkout experiences, including product pages, cart, and checkout, with promotions, subscriptions, and member pricing.
• Implement and maintain integrations across Recharge, Klaviyo, reviews, search, and analytics tools.
• Translate marketing requests into scoped development work and communicate trade-offs.
• Collaborate with internal and external engineers; participate in code reviews and maintain high standards.
• Use AI coding agents in daily workflows with proper isolation and security.
• Follow CI/CD processes, PRs, previews, and release sign-offs.
• Experiment with conversion, tracking, and performance; ensure data integrity.
• Prepare storefront for promotions and maintain uptime and reliability.
• Ensure security and privacy practices across features and integrations.

Skills

Shopify development

TypeScript & React

AI development tools

Git-based workflows

CI/CD

Cross-functional collaboration

Conversion optimization mindset

Tools

Hydrogen

Remix

Next.js

Shopify GraphQL APIs

Klaviyo

Recharge

Sanity CMS

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.

RoleOverview

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 Responsibilites

Storefront Development & Architecture

• PlatformDevelopment: Build, maintain, and enhance our headless Shopify storefrontusing Hydrogen on Oxygen, React Router 7, TypeScript, Sanity CMS, and Shopify'sStorefront and Admin APIs. Work within the existing architecture whileidentifying opportunities for improvement and reducing technical debt.
• Commerce& Checkout Experiences: Develop and maintain critical customerexperiences, including product pages, buy boxes, cart, and checkout. Ensure theprices customers see match what they're charged, working with our promotionsengine, Shopify Functions, Recharge subscriptions, and member pricing for ourARISE loyalty program.
• Third-PartyIntegrations: Implement and maintain integrations across our applicationecosystem, including Recharge, Klaviyo, reviews, search, personalization, andanalytics tools. Evaluate integrations for performance impact, reliability, andbusiness value.

Engineering Collaboration & Development Practices

• FeaturePlanning & Execution: Translate requests from marketing, merchandising,and Customer Experience (CX) into well-scoped development work. Identifytechnical requirements, communicate trade-offs, and ask the right questionsbefore implementation.
• Cross-TeamCollaboration: Work with internal engineers and external developmentpartners, participate in code reviews, and help maintain high standards forcode quality, testing, and design implementation.
• AI-AssistedDevelopment: Use AI coding agents, including Claude Code, Codex, andsimilar tools, as part of daily development workflows. Follow repositorystandards, isolate agent-generated changes in branches and previewenvironments, validate output against evidence, and protect credentials andcustomer information.
• CI/CD& Release Management: Follow established development and releaseprocesses, including pull requests, required CI checks, preview environments,production sign-offs, release freezes, and rollback procedures. Ensure changesare tested and approved before reaching customers.

Performance, Optimization & Growth

• Experimentation& Conversion Optimization: Build, deploy, and measure experimentsinvolving buy box variants, promotional offers, and page layouts. Ensureaccurate tracking and evaluate results based on measurable business outcomes.
• SitePerformance & Reliability: Monitor and improve Core Web Vitals, uptime,and application error rates. Prioritize mobile performance and maintainstability during high-traffic periods.
• TechnicalSEO: Support technical search optimization through structured data, GoogleMerchant Center feeds, crawl budget management, and bot traffic monitoring incollaboration with the content team.
• Analytics& Data Integrity: Support GA4, tag management, server-side events, anddata pipeline integrations. Investigate tracking discrepancies and help ensureaccurate, reliable reporting.

Production Operations, Security & Reliability

• Launch& Promotional Readiness: Prepare the storefront for Black Friday, majorcampaigns, and promotional events through pricing validation, monitoring,testing, and rollback planning.
• IncidentResponse & Troubleshooting: Investigate production issues usingapplication error tracking, edge logs, and other diagnostic tools. Identifyroot causes, implement fixes, and document findings to help prevent recurrence.
• Security& Compliance: Follow secure development practices, including secretsmanagement, least-privilege access, and privacy and consent requirements acrossimplemented 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

• ProfessionalExperience: 3–6 years of experience building, deploying, and maintainingproduction e-commerce platforms or web applications supporting real traffic andrevenue.
• ShopifyDevelopment: Experience with Shopify and headless commerce frameworks suchas Hydrogen, Remix, or Next.js Commerce, including Shopify's Storefront andAdmin GraphQL APIs. Familiarity with checkout extensibility or ShopifyFunctions is highly valued.
• TypeScript& React: Strong proficiency in TypeScript and React, includingserver-side rendering, streaming, caching strategies, and modern webapplication architecture.
• SubscriptionCommerce: Experience with Recharge or similar subscription platforms, withan understanding of how subscription pricing, promotions, and loyalty programsinteract with checkout.
• AIDevelopment Tools: Practical experience using AI coding agents as part ofdaily development, including task definition, code review, validation, andsecure usage practices.
• SoftwareDelivery: Experience with Git-based workflows, pull requests, automatedtesting, preview environments, and CI/CD release processes.
• Business& Performance Awareness: Understanding of how technical decisionsaffect conversion, average order value, customer experience, and siteperformance.
• Communication& Collaboration: Ability to communicate clearly and work effectivelywith engineers, marketers, external agencies, and cross-functionalstakeholders.

Preferred Qualifications

• Experiencewith Rust or WebAssembly for Shopify Functions.
• Experiencewith headless content management systems, particularly Sanity.
• Familiaritywith Vercel, PostgreSQL, or related infrastructure and data technologies.
• Experienceimplementing loyalty programs, server-side tagging, and consent managementsolutions.
• Previousexperience 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!