Senior Full-Stack Engineer - AI-Driven, Remote-First Impact

Foundant; United States; Remote; USD 140,000 - 190,000; Full time

Benefits offered by this job

Tuition reimbursement

Lifestyle reimbursements

Mindfulness and fitness initiatives

Flexible PTO

Internal mobility opportunities

Job summary

Foundant is a remote-first software company serving foundations, grantmakers, nonprofits and community organizations worldwide. We design mission-critical software to streamline workflows, strengthen relationships, and maximize impact.

In this engineering role, you’ll design and ship working prototypes, run fast experiments with real users, and contribute ideas across the full stack. You’ll work with AI-assisted development tools to move fast while staying user-focused.

Qualifications

• Senior-level engineering with broad technical range.
• Comfortable working from a hypothesis rather than a detailed spec.
• Bias toward speed - you know when good enough is good enough.
• Genuine curiosity about users and why they behave the way they do.
• The ability to stay unattached to your own work when the evidence points elsewhere.
• Fluent with AI-assisted development. You've built real workflows around tools like Copilot, Cursor, or Claude and use them to move meaningfully faster, not just as an autocomplete

Responsibilities

• Design and build working prototypes (not mockups) that real users can interact with
• Run fast experiments, put them in front of users quickly, and make clear decisions about what to do next
• Work across the full stack - frontend, backend, APIs - without being blocked by layer boundaries and specific technologies
• Contribute ideas, not just implementations. You'll shape what we build, not just how we build it
• Share work early, learn out loud, and move on when the evidence says to

Skills

Senior engineering

Hypothesis-driven

Fast delivery

User curiosity

Autonomy

AI-assisted development

Tools

Copilot

Cursor

Claude

Job description

Foundant is a remote-first software company serving foundations, grantmakers, nonprofits and community organizations worldwide. We design mission-critical software to streamline workflows, strengthen relationships, and maximize impact.

In this engineering role, you’ll design and ship working prototypes, run fast experiments with real users, and contribute ideas across the full stack. You’ll work with AI-assisted development tools to move fast while staying user-focused.