Full Time Senior Full-Stack Developer

Plan Left; United States; Remote; USD 150,000 - 190,000; Full time

Job summary

Plan Left in the United States is seeking a Senior Full-stack Developer to build and ship new products across a portfolio of companies. You''ll work from the backlog with your team, writing production code in React, TypeScript, and Node.js, and you''ll help our digital marketing agency with technical needs from time to time.

You will prototype with AI tools, ensure bug-free releases across web and mobile, and guide architecture and code quality.

Qualifications

• 7+ years of hands-on full-stack development (React, TypeScript, Node).
• Self-directed, able to work without micromanagement.
• Experience using AI code generation or agentic tools.
• Strong UI/UX sensibility and product mindset.
• Excellent English communication with international teams.
• Experience shipping mobile apps via App Store/Google Play.
• Familiarity with AWS and marketing tech integrations.
• Knowledge of analytics and tag management.

Responsibilities

• Build and ship production code in React, TS, and Node.
• Write automated tests and validate across web and mobile devices.
• Prototype rapidly with AI tools and move to production.
• Review code and maintain clean, scalable architecture.
• Work from specs and clarify gaps with stakeholders.
• Manage mobile app submission and release schedules.
• Support the agency's AWS and hosting needs.

Skills

React

TypeScript

Node.js

AI-augmented workflows

Product mindset

Strong English communication

Cross-Platform Mobile

Tools

Supabase

PostgreSQL

AWS

App Store submissions

Job description

Overview

We are hiring a Senior Full-stack Developer. You will build and ship new products across a portfolio of companies. You work from the backlog alongside your team, and you manage your own day-to-day work. You also help our digital marketing agency with technical needs from time to time. The work happens in TypeScript and JavaScript stacks, with AWS and mobile app releases as part of the work.

About Us

New products here start on Lovable and similar platforms so we can test them fast. The ones that work get taken over with time, which means moving the code, the infrastructure, and the app store accounts into our own hands. As our first hire, you are how that handoff begins, and you set the technical foundation the rest of the team builds on.

What You Will Do

1. Build and Ship Production Code. You write and own full-stack code in React, TypeScript, and Node.js, and you take products from AI-generated prototypes into production.
2. Make Sure Stakeholders Never Find a Bug. You test your work before it reaches a stakeholder. That means writing automated tests, testing on web and on real iOS and Android devices, and releasing only when it holds up.
3. Rapid AI Prototyping and Development. You use our AI-assisted workflows (Lovable, Cursor, and emerging AI agents) to spin up and validate feature prototypes quickly. Then you carry them into full engineering production, including the call on when a product has outgrown its starter platform and needs to move to our own codebase and AWS setup.
4. Hands-on Architecture and Code Review. You review code, diagnose build bottlenecks, and directly program code overrides or refinements when AI generation tools hit their limits. You set the technical standards so the output stays clean, type-safe, and scalable.
5. Work From Specs and Sharpen Them. You build from the specs and acceptance criteria written by our product manager and stakeholders. When you spot a gap, you raise it early and propose a solution.
6. Ship Mobile Releases. You manage App Store and Google Play submissions, review responses, and release schedules for our mobile apps.
7. Support the Agency. You help with the agency's technical needs as they come up, including AWS accounts, hosting, access, software costs, and the technical side of client projects.

Tech Stack

• React, TypeScript, and Node.js, front end and back end
• Supabase and PostgreSQL for application back ends and databases
• AWS for hosting and infrastructure
• Data warehouse storage for reporting and analytics
• AI-assisted development with Lovable, Cursor, Windsurf, v0, and emerging AI agents, where most new products begin
• WordPress for marketing sites, hosted on Cloudways
• iOS and Android app releases through the App Store and Google Play

Requirements

• Deep Coding Expertise: 7+ years of hands-on full-stack development experience (React, TypeScript, Node.js, and Supabase/PostgreSQL). You have the technical authority to audit other developers' work and enforce structural code quality.
• Self-Directed Work: You manage your own time and priorities, take direction once, and carry it through without needing a manager to check on you.
• AI-Augmented Workflow Competency: Active, practical experience using AI code creation or agentic tools (Lovable, Cursor, Windsurf, v0, or similar platforms) to speed up application prototyping and delivery workflows.
• Product Mindset: Strong UI/UX awareness, product intuition, and the ability to think like a tech founder. You spot product gaps and propose solutions proactively, without needing detailed design direction.
• Communication: Exceptional English communication skills, written and verbal, with a proven ability to coordinate effective with international startup teams and founders.
• A Tester's Eye: You find bugs other people miss, and you write down how to reproduce them so a developer can fix them fast.
• Cross-Platform Mobile: React Native, Capacitor, or another way to ship one codebase to both app stores.
• AI Builder Handoffs: Experience moving a product from an AI app builder into a production codebase.
• Platform Familiarity: Experience with AWS and with getting a mobile app through App Store and Google Play review.
• Industry Experience: Experience working on SaaS or marketing technology products.
• Marketing Technology: Familiarity with analytics, tag management, and CRM integrations.

Nice to Have

• Engineering Leadership: 3+ years of experience managing remote software engineering teams, running agile sprint cycles, and driving hiring strategies or organization building.
• Mentoring: Experience training developers and leading code reviews for a team.
• Startup Technical Leadership: Experience as a fractional CTO, agency tech lead, or startup technical founder.
• Marketing and Sales: A deep background in marketing and sales.

Hours and Language

Fluent English, spoken and written, is required. You will work a combination of US and overseas hours so you overlap with our US stakeholders and with developers in other time zones.

How We Work

• You carry out direction without needing a manager to check on you, so your team does not have to micro-manage you.
• You learn from the first mistake and do not need to be told the same thing twice.
• If a deadline will slip, you tell the team before the deadline date.
• You give and receive constructive feedback with emotional intelligence.
• You talk to people directly instead of about them, and you act with honesty and integrity.
• You are accountable. You own your results and your commitments from start to finish.
• You are coachable. You ask for feedback, take it in, and change how you work because of it.

How the Role Grows

You start as the first developer, owning the build and quality of our newest products, plus occasional technical help for the agency. As products mature and move off their starter platforms, you take on more of the architecture. As we hire, you can grow into technical leadership by mentoring developers, leading code reviews, and helping shape the team.