Junior AI-Accelerated Developer

Spare builds the Operating System for Cities. We power microtransit, paratransit, fixed-route, and municipal operations in 250+ cities worldwide. We are an aggressively AI-first company, rethinking how modern software is designed, built, and shipped.

We are looking for a Junior AI-Accelerated Developer to help us dramatically increase engineering velocity by partnering closely with our COO and engineering team. This role is ideal for an ambitious junior developer who is excited about AI-assisted coding, eager to learn, and able to move quickly. You will report directly to Josh, our Co-Founder and COO.

You will work within Cursor, Claude Code, GitHub, and our engineering workflows to help iterate on code, address review feedback, maintain branch health, and push features from concept to merge. You won’t own architecture or complex systems yet. Instead, you’ll focus on accelerating delivery, improving code quality, and ensuring a smooth path through our development pipeline.

This is a new type of engineering role, combining software fundamentals with strong operational instincts and deep proficiency with AI coding tools.

AI-Assisted Engineering

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  Work inside Cursor and Claude Code to iterate on code based on reviewer feedback

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  Translate high-level instructions into precise prompts to guide AI-generated code

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  Improve AI-generated code until it meets internal quality standards

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  Help refactor, clean up, and polish code before final review

Branch, Build and CI Management

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  Maintain functioning local and remote environments

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  Pull branches, resolve simple merge conflicts, rebase, and ensure builds run cleanly

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  Keep PRs unblocked by ensuring CI, linting, type checks, and tests pass

PR Execution and Throughput

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  Push commits and update branches rapidly based on reviews

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  Work through automated feedback (Meticulous, linters, TypeScript errors)

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  Re-request reviews and ensure PRs move swiftly through merge queues

Quality and Reliability

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  Apply checklists and QA steps before senior engineer review

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  Catch common issues the AI may miss, such as naming, structure, and missing edge cases

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  Ensure final code is clean, idiomatic, and consistent with our best practices

• Features vibe-coded by Product move quickly from prototype to polished to merged

• Senior engineers spend minimal time on minor fixes or environment switching

• You become highly skilled at working with AI tools and accelerating engineering throughput

• Strong technical curiosity and the ability to learn quickly

• Excellent attention to detail, especially in code quality

• Ambitious, excited about AI-assisted coding, and able to move quickly

• 1 to 2 years of hands-on experience with software development (internships welcome)

• Basic familiarity with TypeScript, React, or Node.js

• Comfortable with Git, PR workflows, and debugging build issues

• Strong written and verbal communication skills including the ability to follow precise instructions

Studies have shown that women and people of colour are less likely to apply to jobs unless they meet every single qualification in the job posting.

At Spare, we are committed to creating a diverse and inclusive environment, so we strongly encourage you to apply even if you don’t believe you meet every single qualification outlined. We also do our best to respond to all applications we receive.

• Experience with AI coding tools (Cursor, Claude Code, GitHub Copilot)

• Experience in frontend engineering or fullstack frameworks

• Familiarity with monorepos (Nx), microfrontends, or modern React architecture