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About EdfinityEdfinity is the category leader in courseware and assessment technology for higher-ed STEM. We're NSF-supported, bootstrapped, and built by a close-knit remote team of senior engineers. We're growing fast and leading the field in AI-powered courseware that moves the needle on educator productivity and student outcomes. Your work will reach hundreds of institutions, and you will help decide how it gets built.How we workWe're fully remote, with team members distributed across the US, and with that comes personal flexibility and accountability.AI agents produce most of our code. We move fast, but we temper velocity with quality and stability above all else.Engineers frame the problems, direct the work, and are accountable for everything that ships. If you already work this way and have opinions about it, you'll feel at home.Everyone has opportunities to work across different areas of the platform, and team members are expected to develop deep technical expertise over time. This is particularly important as we step away from hands-on coding.We're a small team of collaborative senior engineers. Your opinion matters.The pace of change is real. More than ever, we're continually evolving our tooling and workflows as LLMs become more capable.What you’ll be doingOur stack is Ruby on Rails, MongoDB, Elasticearch, ClickHouse, Redis/Sidekiq, and React.Full-stack product development in areas like assessment authoring, delivery, and grading; educator and student-facing features; LMS integrationsLLM-powered features, from prompt architecture to auto-grading to eval infrastructurePerformance optimization and reliability refactoring to handle both day-to-day load and high-stakes spikesStewardship of a mature codebase: upgrades, migrations, and paying down technical debt methodicallyPart-time technical support rotation. Customer happiness is extremely important to us.What you'll need8-15 years building and running scalable production web applications and servicesDeep experience with RailsExperience with web front-ends such as ReactRecent experience in an SDLC revolving around the use of AI agentsStrong CS fundamentals in systems, data modeling, and complexityExcellent communication hygiene, collaborative skills, and strong sense of self-direction.Interest in a long-term seat on a close-knit team.Authorization to work in the United States. We are not able to sponsor or transfer work visas at this time.Compensation$135,000-$195,000, plus eligibility for an annual discretionary bonus, retirement plan, and PTO
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