Senior Software Engineer – AI SaaS

This is a fully remote position, open to applicants in United States.

📋 Description

• Architect and enhance backend systems utilizing Scala, Play, Postgres, and AWS.

• Design and implement scalable APIs and AI-enabled services.

• Take ownership of feature development from initial concept to production.

• Develop frontend features using React, Chakra, Storybook, and contemporary state management tools.

• Create and uphold agent-driven development workflows.

• Leverage Claude Code, Codex, and similar tools to expedite implementation, debugging, and refactoring across concurrent sessions.

• Construct internal tools, prompts, and engineering systems to boost velocity and enhance code quality.

• Improve performance across frontend, backend, and AI-assisted pipelines.

• Contribute to defining best practices for AI-native software development.

• Eventually lead a small team of 2–3 engineers, influencing their collaboration with AI.

• Assist in architecting and evolving Process Street into an AI-native product and engineering organization.

• Operate within 6-week Shape Up cycles and 2-week cooldown periods.

• Collaborate asynchronously and independently within a globally distributed team.

⛳️ Requirements

• Over 7 years of experience in software engineering.

• Extensive experience with backend systems (Scala, or Java / Ruby / C#).

• Proficient in JavaScript and React.

• Experience in building and scaling SaaS products.

• Deep understanding of AI coding tools (Claude Code, Codex, Cursor, etc.).

• Comfortable navigating multi-session, agent-driven workflows.

• Strong intuition for determining when to utilize AI versus manual implementation.

• Experience in system design, not just feature implementation.

• Exceptional written communication skills.

• Reside in a timezone between UTC -6 and UTC+2.

• Advanced proficiency with Claude Code or Codex, including extensive configuration knowledge, context structuring, and managing long-running coding sessions.

• Experience in experimenting with or developing custom LLM workflows, internal engineering tools/prompts/skills, or agent-like systems across files, repositories, or tasks.

• Proficient in coding, system design, prompting/guiding AI agents, and debugging AI-generated outputs.

• Ability to thrive in ambiguous and autonomous environments, preferring ownership of tasks over detailed instructions, with a focus on delivering tangible outcomes.

• Bonus: experience in functional programming; internal developer tools or platforms; prompt systems or reusable AI workflows; insights on the evolution of coding and the ability to act on those insights.

🏝️ Benefits

• “No Meeting” Fridays!

• Unlimited PTO policy – Most employees take 3-4 weeks off, in addition to major holidays, plus a company-wide week off in December.

• Company offsite events and sponsored small group meetups worldwide.

• Social opportunities including coffee chats, gaming, storytelling, and house tours.

• Comprehensive health insurance for US employees and their families, including dental and vision plans.

• Equity provided for all full-time positions.

• Flexible and collaborative remote work culture.

• Asynchronous communication and independent work environment.

• 6-week cycles and 2-week cooldowns dedicated to enhancing systems, tooling, or exploring new ideas.