Staff Full Stack Engineer (Product focus)

Posted 3 Days Ago
Be an Early Applicant
Argentina
170K-250K Annually
Mid level
Artificial Intelligence • Marketing Tech
We build growth engines that blend AI workflows with experts. From content to distribution to conversion.
The Role
The Staff Full Stack Engineer will develop full-stack solutions using React and Ruby on Rails, ensure high-quality user interfaces, and collaborate with teams to enhance internal tools and workflows.
Summary Generated by Built In

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About GrowthX AI

At GrowthX, we design growth systems that integrate AI automation and expert guidance to help marketing teams with content creation, distribution, and conversion. Since our founding in 2024, we’ve hit seven-figure annual revenue, grown by double digits month-over-month, and teamed up with incredible partners from startups to publicly traded leaders like: Ramp, Webflow, Abnormal Security, Superhuman, Vapi AI, Homebase, Strapi, Galileo AI, Rapyd to name a few.

Our approach combines:

  • Advanced AI Workflows: Automating and optimizing growth processes—from content creation to distribution—so clients can scale efficiently.

  • Expert Insights: Pairing AI-driven solutions with human expertise to ensure nuanced, high-quality outputs.

  • End-to-End Solutions: Covering the entire growth funnel, from lead generation to conversion optimization.

We go beyond software; we become our clients’ growth partners by leveraging technology, strategy, and hands-on execution.

About the role

We are seeking a Staff full-stack developer with a strong product mindset and high standards for user interface design. Our stack includes React (TypeScript with Tailwind/Shadcn) and Ruby on Rails (Rails experience is a plus but not required).

Most of your time will likely be spent working full-stack in internal platform, which supports everything from SEO tools to AI-powered text editing – but at an early stage team, the needs might vary.

Being an AI-native company, we expect every team member to embrace AI to boost productivity. Familiarity with tools like Cursor is essential, but we are happy to provide guidance here.

This is a fully remote role, but we do ask for at least 4 hours of overlap with US Pacific Time—during reasonable work hours.

What You'll Do
  • Collaborate with our Client Ops team to design and deliver full stack solutions supporting internal teams.

  • Build and maintain features using React (TypeScript) and Ruby on Rails, enhancing internal workflows and tools.

  • Turn ideas from whiteboard sketches into fully functional, production-ready features with high-quality UX.

  • Use tools like Cursor to accelerate development, streamline maintenance, and optimize workflows.

  • Focus on creating intuitive and visually appealing interfaces that deliver an exceptional user experience.

  • Design features with strong attention to usability, creating clear and enjoyable user interfaces.

  • Write concise, effective UI copy.

  • Support marketing initiatives with small coding projects as needed.

  • Help create and maintain our AI Workflows (no experience needed here, but willing to learn is a must).

About You

We’re looking for someone with:

  • Proven Experience: Strong full stack skills, including building web applications using React and Ruby on Rails (or Python), working with PostgreSQL, and familiarity with frontend frameworks like Tailwind or Shadcn.

  • Passion for AI: Excitement for GenAI, LLMs, and tools like Cursor.

  • Good Design Taste: An ability to create user-friendly interfaces independently, focusing on clarity and usability.

  • Ownership: A self-starter mentality, capable of managing projects and priorities with minimal supervision.

  • Collaborative Mindset: A team player who thrives on proactive communication and constructive feedback.

  • Communication Skills: Clear and proactive communication skills, essential in a remote environment, with the ability to keep the team informed and aligned.

  • Pragmatic Approach: A focus on practical, impactful solutions, avoiding over-engineering or unnecessary debates.

  • Project Management: Excellent organizational skills, keeping your to-dos and tickets up to date, and ensuring team awareness of progress and blockers.


This role is more suited for someone that have created entire projects on their own, even if just as a side-projects, than someone that prefers a lot of structure or guidance.

Perks:

🌍 Fully Remote Work

  • Work from anywhere—your productivity, your space!

  • We help set up your work environment to enable your best work.

  • Minimal meetings and async communication for deep focus

🏖 Ample Time Off

  • Enablement for you to recognize your countries holidays

  • We encourage you to take the time you need to recharge!

📚 Professional Growth

  • We’re an AI forward culture and work environment - Learn all things AI!

  • Access to training, workshops & mentorship programs

  • Support for external conferences & industry events

🤝 Collaborative Culture

  • Open communication & feedback-driven environment.

  • Clear, concise communication is key to our success.

Work Visa: Applicants must have legal authorization to work in the country of residence. We are not able to provide employment visa sponsorship at this time.

#LI-Remote

Top Skills

Postgres
Python
React
Ruby On Rails
Tailwind
Typescript
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The Company
San Francisco, CA
80 Employees
Year Founded: 2024

What We Do

We build end-to-end growth engines with expert-guided AI workflows. From content to distribution to conversion.

We're not another software company. We're not trying to be an agency. We're building something entirely different:
- AI-powered workflows that adapt to YOU
- Expert guidance every step of the way
- Zero burden on your team
- Results that compound over time

Why?
Because traditional options aren't cutting it:
- Agencies are expensive and often disconnected from your brand's reality.
- Freelancers can be hit or miss, hard to manage, and challenging to retain.
- In-house teams are costly to build and often bogged down by internal processes.
- AI alone lacks the nuance and contextual understanding that human expertise brings.
- Software tools require your team to do all the heavy lifting.

We believe in combining the best of both worlds—AI and experts—to drive real growth.

P.S. We're hiring (and yes, taking on new clients too)

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