Join to apply for the Senior Software Engineer role at JOBS by allUPJoin to apply for the Senior Software Engineer role at JOBS by allUPGet AI-powered advice on this job and more exclusive features.This range is provided by JOBS by allUP. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.Base pay range$175,000.00/yr - $200,000.00/yrAbout our clientheyLibby is a seed-stage startup on a mission to give every small-to-midsize fitness and wellness business a world-class AI team member. It was co-founded by Spencer Rascoff, the former CEO of Zillow and current CEO of Match Group. Its AI works seamlessly across phone, email, text, and chat to help businesses manage their communications efficiently. The team moves fast, prioritizes impact, and works closely with top industry experts. They ship fast, learn fast, and measure themselves by the tangible impact delivered to customers.About the roleThe company is looking for a highly skilled and experienced Senior Software Engineer with the ability to architect, design, and build and with expertise in Node.js, TypeScript, and AWS. This person will be a critical part of the small, high-impact team, architecting and building scalable systems while making quick and pragmatic decisions. They value engineers who can think creatively, ship fast, and build practical solutions that drive real business value. The team also uses AI throughout all daily tasks and is looking for engineers who can use the latest AI technologies to accelerate development.Why this role mattersThe company is looking for a senior engineer to join the small but mighty team and own core pieces of the product stack. This is a high-impact role where the person will shape how backend and frontend systems evolve to support a rapidly growing customer base.They will help scale Node.js services, and drive architectural decisions across the board. They will also use AI tools to accelerate development and optimize delivery—everything from code generation to testing and beyond.What You’ll DoBuild Core Features End-to-EndDesign and deliver user-facing and backend functionality, from conception to production release.Develop robust APIs and backend logic using Node.js on AWS, with a focus on performance and reliability.Select design patterns, lead technical decisions, and implement scalable, maintainable systems.Apply AI in Development WorkflowsUse the latest LLM tools and frameworks to enhance development velocity and code quality.Own the Frontend ExperienceTake charge of the frontend, using React + TypeScript or tools like lovable.ai to ship smooth, responsive interfaces that customers love.Collaborate Cross-FunctionallyWork closely with founders, engineers, and AI specialists to iterate quickly and align on product direction.What They’re Looking ForMust-Have Experience5+ years of full-stack development experienceDeep expertise in Node.js and TypeScript; React experience is a plusExperience with AWS services and cloud-native infrastructureAbility to leverage AI tools for coding, testing, and optimizationComfort with fast-paced environments and shipping iterativelyStrong communication and a team-first mindsetA ‘get-it-done’ attitude and a bias toward execution over perfectionBonus PointsExperience with AWS AmplifyPrior startup or small team experienceFamiliarity with automated testing and CI/CD pipelinesExposure to identity frameworks (OIDC, OAuth, etc.)Experience with IAM and access control strategiesHow They Work & What the Role OffersCompetitive Comp – $175,000 to $200,000 + meaningful equityHealth Coverage – Full medical, dental, and vision benefits are offeredDiscretionary Time Off – Trust is placed in the individual to balance work and restWorkspace Setup Support – Gear needed to be productive is coveredAutonomy & Ownership – The engineer is trusted to drive decisionsVelocity – Weekly releases, minimal ceremony, rapid experimentationImpact – Code will be on the critical path for every customer interactionFlexible, People-First Culture – The team works hard but protects family and personal timeReady to build AI that works like magic and ships cool new features frequently? Apply now and help redefine how small businesses connect with their customers.Seniority levelSeniority levelMid-Senior levelEmployment typeEmployment typeFull-timeJob functionIndustriesSoftware Development, Wellness and Fitness Services, and Technology, Information and MediaReferrals increase your chances of interviewing at JOBS by allUP by 2xSign in to set job alerts for “Software Engineer” roles.Palo Alto, CA $140,000.00-$185,000.00 2 weeks agoSoftware Engineer (L5) - Open Connect PlatformUnited States $100,000.00-$720,000.00 2 weeks agoSan Francisco, CA $132,700.00-$196,600.00 2 weeks agoSoftware Engineer, HTML - AI Training (Freelance, Remote)Software Engineer Internship (7 openings)San Francisco, CA $90,000.00-$110,000.00 4 months agoPalo Alto, CA $195,000.00-$215,000.00 2 weeks agoSan Francisco, CA $150,000.00-$180,000.00 3 weeks agoPalo Alto, CA $105,000.00-$145,000.00 2 weeks agoSan Francisco, CA $130,000.00-$165,000.00 3 weeks agoPalo Alto, CA $140,000.00-$185,000.00 2 weeks agoSan Francisco, CA $150,000.00-$175,000.00 2 months agoSoftware Engineer (Front End/Full Stack)Software Engineer - AI Training (Freelance, Remote)San Francisco, CA $150,000.00-$190,000.00 1 month agoSoftware Engineer, Python - AI Training (Freelance, Remote)San Francisco, CA $105,000.00-$180,000.00 1 month agoSoftware Engineer, Node.js - AI Training (Freelance, Remote)Santa Clara, CA $80,000.00-$155,000.00 2 months agoSoftware Engineer, SQL - AI Training (Freelance, Remote)San Francisco, CA $175,000.00-$250,000.00 1 month agoSan Francisco, CA $40,000.00-$100,000.00 1 month agoWe’re unlocking community knowledge in a new way. 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