Senior Full-Stack Engineer -Headless Commerce

About Lumen Dynamics Inc.
Lumen Dynamics is building the real-world AI interface for professionals to amplify intelligence, elevate productivity and performance, loved by over 2,000,000 users worldwide since 2023. With a mission to amplify human intelligence, Lumen Dynamics captures, structures, and compounds the intelligence generated in conversations — so humans can think better, decide faster, and execute with clarity.

Lumen Dynamics Inc. is a Delaware-incorporated, San Francisco-based company pushing the boundary of human–AI intelligence through a hardware–software combination. With full ISO 27001, ISO 27701, SOC 2, GDPR, EN18031, and HIPAA compliances, Lumen Dynamics is committed to the highest standards of data security and privacy protection.

To learn more about Lumen Dynamics, please visit https://www.plaud.ai and follow along on Instagram https://www.instagram.com/plaud_official/, X https://twitter.com/PLAUDAI, Facebook https://www.facebook.com/plaudai, Linkedin https://www.linkedin.com/company/plaudai/?viewAsMember=true, and YouTube https://www.youtube.com/@PLAUDAI

Why You Should Join Us
Lumen Dynamics is building the next generation intelligence infrastructure and interfaces to capture, extract, and utilize intelligence from what people say, hear, see, and think.
– Lumen Dynamics is a bootstrapped, skyrocketing, profitable company with a $250M revenue run rate achieved in just three years.
– Define the next-gen paradigm for human-AI interaction.
– Gain exposure to cutting-edge AI for Pro tools and play a direct role in our global expansion.
– Work with passionate teammates who value innovation, collaboration, and customer success.
– Grow your career in a culture that champions continuous learning and fast career development.
– Market-competitive compensation, global exposure, and a vibrant, creativity-fueled work atmosphere.
We're looking for a Senior Full-Stack Engineer to lead the technical execution of Lumen Dynamics's transition from Shopify Liquid to a headless commerce stack. This is the foundational engineering role for Lumen Dynamics's e-commerce platform for the future. You will treat the website as a long-lived product platform — not a one-shot rebuild.

What you will do
1. Architecture & Code Quality

– Design and lead the Hydrogen + Shopify Storefront API + Contentful architecture

– Set patterns for multi-locale routing (plaud.ai/[lang-country] http://plaud.ai/[lang-country]), data fetching, caching, edge runtime

– Define and enforce performance budgets (LCP < 2.0s, INP < 200ms, CLS < 0.1)

– Lead CI/CD, preview deploys, observability, and code review standards

2. Migration Execution

– Own phase-by-phase migration: non-commerce pages → PDP → Collection → Checkout → Multi-region

– Drive technical decisions on App migrations (Klaviyo SDK, Refersion/Impact, Yotpo, Algolia)

– Ensure 95%+ Ads pixel parity in dual-tracking phase

– Coordinate redirect mapping and SEO-safe URL migration

3. Cross-Functional Leadership

– Partner with Marketing (Performance + Lifecycle), SEO, Finance, Logistics, and Partnership teams

– Translate business requirements into engineering work; defend engineering bandwidth from scope creep

– Own the technical narrative for cross-functional decision gates (M0–M11)

4. Team Leadership

– Recruit and mentor 2 junior engineers; embed AI-augmented development (Claude Code / Cursor / Copilot) as default

– Establish and enforce quality bars (testing, A11y, performance)

– Drive engineering culture: ownership, ship velocity, blameless postmortems

Skills, qualifications and experience we look for
– 5+ years full-stack web engineering with React-based stacks (Next.js, Remix, or Hydrogen)
– Production experience with headless commerce on Shopify Storefront API (or comparable: Commercetools, BigCommerce, Saleor)
– Strong Ruby (Rails or scripting) — comfortable with Shopify backend tooling and Shopify Functions
– HTML Canvas / WebGL or graphics-heavy frontend experience
– Proven track record on Core Web Vitals optimization at production scale
– Hands-on with at least one edge runtime: Cloudflare Workers/Pages, Shopify Oxygen, Vercel Edge, or AWS Lambda@Edge
– Has owned a Liquid → Headless or comparable major frontend migration end-to-end
– Demonstrated technical leadership (formal or informal) of ≥2 engineers
Preffered Qualifications
– TypeScript fluency at scale
– Tailwind CSS in a design-system context
– Experience with Algolia, Searchspring, or Coveo
– Integration experience with Klaviyo, Refersion / Impact.com http://Impact.com, Avalara / Shopify Tax
– Direct-to-consumer brand or premium SaaS background
– Multi-locale / multi-currency rollout experience

What we offer
– Founding Team: Opportunity to join the founding team of this new initiative, with meaningful ownership and impact on a fast-growing startup.
– Competitive Compensation: $150K-$260K base salary+performance bonus+Equity.
– Comprehensive Benefits: Top-tier healthcare for employees and dependents, including dental and vision, and a generous employer subsidy.
– Retirement Planning: 401(k) plan for full time employees with company matching.
– Paid Time Off: Unlimited PTO, plus 13 paid holidays.
– New Parent Leave: 12 weeks of paid time off to spend time with your new family, regardless of gender.
– Hybrid Office: Minimum of 3x in office per week.
– Gear: New hires are equipped with their choice of new top-of-the-line laptops and workstation setups.
– Perks: Best office equipment. Annual offsites. Free office drinks and snacks. Commuter Benefits.

Lumen Dynamics is and will continue to be an equal opportunity employer. We do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristics..