Senior Software Engineer - Fountain One

Fountain
MexicoPosted Apr 30, 2026
Skip to main contentHey — Let's find your next opportunity 🚀Job title or companyLocationWorkplace typeWorkplace TypeSearchSet Job PreferencesBack to Job SearchSenior Software Engineer - Fountain OneFountain3 months agoRemoteFull TimeIntermediate or ExperiencedGuadalajara, Jalisco, MexicoAbout FountainWhen you join the Fountain team, you become part of the leading enterprise solution for frontline workforce management. Fountain’s automated, customizable platform provides a seamless applicant experience for workers, while ensuring organizations can scale and manage their frontline talent.We’ve helped hundreds of companies like UPS, CLEAR, Stitch Fix, GoPuff, Fetch, and sweetgreen to hire, onboard, and manage over 14 million workers in more than 75 countries.In 2022, we closed $185M in our Series C, led by SoftBank and B Capital.Join our growing team of highly collaborative, ambitious, and forward-thinking Fountaineers as we empower our hundreds of customers and millions of frontline workers around the world.Let’s elevate frontline work together.About the jobFountain builds workforce management software for the world's largest hourly employers. We are an agent-first engineering organization where coding and review agents are integrated into our daily workflow. Our platform team builds the critical systems that enable engineers and agents to ship dependable products at scale.What You’ll be Doing:As a member of our compact platform squad (currently four engineers), you will develop the foundational systems that power the entire Fountain ecosystem. Your responsibilities will typically involve:Ship platform capabilities across all customer and internal productsOwn performance, security, and stability for high-traffic production systemsEnhance agentic systems, including coding agents and observability toolsLead architectural decisions for human and agentic interfacesDesign reliable code, APIs, and contracts for humans and agentsCollaborate with product and engineering teams to deliver customer impactWork autonomously with product managers and designersIdentify problems, ship fixes, and own outcomes like an early-stage product teamWhat you bringA minimum of five years in a professional engineering role, primarily focused on backend development, with a proven history of launching production-ready systems.Expert-level systems design. You have a keen eye for the architectural foundations beneath every feature and aren't afraid to express your technical perspective. You possess a track record of identifying and re-engineering misaligned systems.Exceptional discernment for technical trade-offs, UX, APIs, and code. You possess a clear vision of excellence across various domains and consistently elevate the standards of your colleagues.Demonstrated experience with agentic or LLM-based systems beyond consumer use. You've shipped something where an LLM was in the critical path, built tooling that agents consume, or designed evals that catch regressions. Bonus if you can describe the failure modes you've seen and what you did about them.Initiative. Our strongest signal: you ship things nobody asked you to ship, and they turn out to matter.Thrives in autonomous and ambiguous environments, operating effectively without the need for a structured ticket queue.Excellent written communication. You'll work across time zones (EU, US, South Africa, India) and async clarity is the highest-leverage skill in this kind of org.Nice to haveDesigned APIs or tools meant to be consumed by agents: structured outputs, deterministic surfaces, good observability.Experience within early-stage product teams or startup environments.Proficiency with event-driven architectures, monorepos, and/or observability at the platform level.BenefitsHealth InsuranceDental InsurancePaid Time Off (PTO)Paid HolidaysSick LeaveRemote WorkProfessional DevelopmentParental LeavePreferred SkillsTypescriptNodeExpressMongodbEven if you do not meet all the requirements above, we still...

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