Senior Engineer (Python or PHP, Remote) (Remote)

About F6S

F6S drives growth for 6 million founders, startups and companies of all sizes. F6S is an AI-first platform that helps our members grow with funding, grants, growth programs, software discounts and more. F6S delivers billions of dollars in growth fuel per year to our global member network.

We are a fast-growing and stable company with millions of customers and members that rate us highly. We’ve consistently grown to deliver opportunities to both network and team members. This is a remote role that you can do from anywhere.

We are looking for a senior engineer to lead development of AI-first products and services. You will work on F6S’ most important projects using AI-first development processes, the latest tools and modern AI architecture.

On a typical day as a Senior Engineer, you will:

• Build products that scale and win in an AI-first development environment.
• Write code in Python or PHP.
• Have ownership of systems, make key technical decisions and lead feature development.
• Leverage AI coding (Cursor, Claude, Codex, etc.) with MCP tooling.
• Define technical work in specification review to proactively assess feasibility, technical trade-offs, and project complexity.
• Collaborate with design and product team members.

Desired profile

• 7+ years of professional software engineering experience, with a proven track record of shipping products people use in a product-driven environment.
• Deep expertise in system architecture, design patterns, and high-level programming proficiency in either Python or PHP.
• A senior-level contributor who has end-to-end accountability for features and deliverables.
• Can win in an AI-first development workflow; has experience with AI tools (Cursor, Claude, Codex, etc.) and modern AI infrastructure or agentic concepts (MCP, etc.)
• Can balance rapid MVP shipping with clean, organized, and reusable code standards.
• A self-motivated, independent problem solver who is passionate about tackling challenges to deliver technical solutions that get used.
• It would be nice if you have:
  • Experience with AI observability and orchestration tools (e.g., LangSmith, LogFire, Arize, OpenLIT).
  • Experience with AI agent frameworks (e.g., PydanticAI, CrewAI, SmolAgents).
  • A track record of building, monitoring, or deploying AI agents in production environments.

Perks

• Fully remote work
• Flexible working hours
• Fun and rewarding environment with skill and career progression
• Paid annual leave
• Birthday gifts :)

Growing at F6S

F6S empowers each team member to reach their potential with ongoing training, increased responsibility, and opportunities for progression in new or existing F6S teams. We will work to provide you with career and personal progression at the level you desire.