[Remote] Senior Full Stack Software Engineer

Note: The job is a remote job and is open to candidates in USA. Instrumentl is a profitable, hypergrowth, YC-backed SaaS platform building the operating system for grant-funded organizations. As a Senior Full Stack Engineer, you will work across design, product, content, and support to deliver a best-in-class experience to every user, owning problems from ideation through shipped solutions.

Responsibilities

• Build, operate, and improve products for every Instrumentl customer, from small local nonprofits to large organizations
• Create responsive interfaces and APIs that drive customer adoption and retention
• Contribute high-quality, thoroughly tested code across resilient backends and trustworthy user interfaces
• Own problems end to end, managing complexity from ideation through shipped, reliable solutions
• Use AI tooling with judgment to move faster while owning the quality, correctness, and long-term maintainability of what you ship
• Partner with product, sales, support, and content to improve internal tools and processes
• Act as a strategic partner, weighing business impact, reliability, and the detail of every customer interaction
• Uphold Instrumentl's quality standards and mentor newer engineers to the same bar

Skills

• 7+ years as a software engineer building and shipping production software
• Generalist range: comfortable moving across frontend, backend, infrastructure, and data or billing pipelines as the work demands
• Deep, hands-on experience with Ruby on Rails in production: this is our primary stack and where you'll spend most of your time
• Working fluency across Python, JavaScript, PostgreSQL, Redis, and HTML/CSS, with an openness to adopting new tools
• A track record of owning problems end to end and delivering them from ideation to completion
• Startup or early-stage experience
• Experience mentoring or leveling up other engineers

Benefits

• 100% covered health, dental, and vision insurance for employees (50% for dependents)
• Generous PTO, including parental leave
• 401(k)
• Company laptop and home-office stipend
• Bi-annual company retreats

Company Overview

Instrumentl is an end-to-end platform for grant management that supports organizations throughout the entire grant lifecycle. It was founded in 2015, and is headquartered in San Francisco, California, USA, with a workforce of 51-200 employees. Its website is https://www.instrumentl.com/.

Company H1B Sponsorship

Instrumentl has a track record of offering H1B sponsorships, with 1 in 2026, 2 in 2025, 4 in 2024, 2 in 2023, 4 in 2022, 6 in 2021, 2 in 2020. Please note that this does not guarantee sponsorship for this specific role.