[Remote] Sr. Full Stack Engineer

Note: The job is a remote job and is open to candidates in USA. Zafhires is a fast-growing B2B data and AI platform that assists go-to-market teams in identifying and converting their ideal customers. The Senior Full-Stack Developer will be responsible for building and shipping product features, contributing to the AI copilot, and owning cross-cutting initiatives across the full stack.ResponsibilitiesFlow Pilot — our AI-powered copilot product built on LangChain/LangGraph. You will be adding new tools and agents, making it smarter, giving it more access and knowledge, and shaping its responses. This is the primary near-term focusClient-facing product features — anything that touches the customer experience: search filters, analytics pages, data export, enrichment pipelines, and moreAI-powered automation — building sequences, triggers, and pipelines that help customers close more deals with less manual effortArchitecture and technical design — contributing to architecture review, writing design docs, and owning technical decisions in your domainCode reviews — reviewing teammates' code and having yours reviewed. High quality bar is a core part of the cultureSkills7+ years of professional software engineering experienceTypeScript — expert level, used across the full stackAWS — production deployment experienceAI tools and LLMs — you are actively using AI in your development workflow today. If you are not all-in on AI, this is not the role for youAbility to work independently with ambiguous requirements — you can take a loosely defined problem, structure it, and deliver something realFull-stack capability — back end and front end, not a specialist in oneStrong communicator — you will proactively flag blockers, set up meetings when you need something, and not wait to be told what to doLangChain / LangGraph experience — directly relevant to Flow Pilot workNode.js — recently added to our stackExperience at a startup — you understand what it means to own things in a small teamData structures and algorithms proficiency — you will be tested on medium to hard level problemsPostgreSQL or similar SQL database in productionExperience with CRM API integrations (Salesforce, HubSpot, MS Dynamics) — helpful but not required for this roleCompany OverviewWe are a boutique staffing and recruitment agency specializing in US based and nearshore workforce solutions. It was founded in 2024, and is headquartered in Miami, FL, US, with a workforce of 2-10 employees. Its website is https://zafhires.com/.