full-stack development Jobs - April 2026

Founding Engineer role at GenTube. Turning consumers into creators; AI creation as entertainment. Early signals: ~10M creations/month, daily usage. Responsibilities: own core loop (create → remix → repeat), real-time generation (latency, cost, scale), feed an…

Planlab builds an AI system that generates software for complex construction and infrastructure megaprojects. Early-stage startup (seed round, $25M valuation) with a small team (4 people) hiring multiple roles. Platform Engineer: build algorithms, infrastruct…

HumanSignal (https://humansignal.com) is a remote team focused on open source and AI. They created Label Studio, an open source data labeling and AI evaluation platform with 350K+ users. They are hiring multiple full-time engineering roles to support Label St…

Mobian is a brand safety, contextual intelligence, and measurement company hiring Senior / Staff Engineers (Remote, Global) across two tracks: Core Systems Engineers to design, scale, and harden production-grade APIs, data pipelines, ML deployments, and cloud…

SightlineOS is an AI-native supply chain operating system for restaurant chains, building modern data and ML systems to automate planning, inventory management, and spend optimization. Venture-backed and NYC-based, hiring first senior engineers to scale. Role…

Crimson is the AI platform for high-stakes litigation. We’re a fast-growing YC-backed company working with leading law firms. We’re looking for an exceptional full-stack engineer to join us as one of our first employees. You'll ship production code from day o…