Senior Full-Stack Software Engineer, Applied AI

Jobgether

3d • $130,000 - $140,000 • Remote

About The Position

We are seeking a versatile Senior Full-Stack Software Engineer to join a dynamic Applied AI team, developing cutting-edge AI-powered solutions. In this role, you will design, build, and deploy full-stack applications that leverage large language models (LLMs) to create transformative experiences. You will ship production-ready features, design experiments, and optimize AI infrastructure, all while collaborating with cross-functional teams. The ideal candidate is highly curious, enjoys rapid iteration, and thrives in a fast-paced environment where innovation meets execution. This role offers the opportunity to shape real-world AI applications, contribute to scalable systems, and make a tangible impact across products used by thousands of users.

Requirements

• 6+ years of experience as a full-stack engineer on high-traffic, production applications.
• Proficiency with Ruby on Rails, ReactJS, and relational databases (MySQL/PostgreSQL).
• Hands-on experience developing AI features in production (e.g., LLM-powered tools, RAG systems, AI agents).
• Strong experimentation mindset: designing, running, and iterating on tests to validate feature impact.
• Ability to work in a fast-paced environment with autonomy, personal accountability, and collaboration across teams.
• Comfortable learning new technologies quickly and navigating ambiguity.
• Strong alignment with organizational values.
• Proficient in English (CEFR Level C2 / ILR Level 5).

Responsibilities

• Develop full-stack AI applications, including front-end components (ReactJS) and back-end services (Ruby on Rails), shipping projects end-to-end.
• Design and execute experiments, such as A/B tests and AI evaluations, to validate features, measure impact, and guide iterative improvements.
• Build and maintain infrastructure for AI inference, ensuring performance, reliability, and scalability.
• Collaborate with product, design, and leadership teams to shape features and drive innovation.
• Continuously improve processes, tools, and systems to accelerate AI feature deployment.
• Stay current with emerging AI research, tools, and technologies, applying relevant advancements to production use cases.
• Maintain high standards of code quality, user experience, and operational reliability.

Benefits

• Competitive salary: $130,000 – $140,000 USD per year, with annual review and equity options.
• Fully remote: work from anywhere in the world.
• High autonomy and trust in executing your work.
• Generous paid time off: 35 days annually, plus paid sabbatical after 5 years.
• Comprehensive medical coverage or reimbursement options.
• Parental leave and family support benefits.
• Home office and professional development stipends.
• Annual bonus potential.
• Twice-yearly fully paid company retreats in international locations.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed
• Number of Employees: 11-50 employees