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Open positions
Product Manager, Waterfall & Developer Platform
FullEnrich, a fast-growing San Francisco B2B contact-data startup, is hiring a Product Manager to own its Waterfall enrichment product and launch its developer platform/API. The role blends data-driven product ownership, pricing and go-to-market strategy, and hands-on AI building.
Senior AI Engineer
Senior AI Engineer at Rumi, a $100M+ funded neobank for Mexico and Latin America, will build agentic AI experiences — including a WhatsApp-based financial assistant for loans and payments. The role owns AI agents end to end (RAG pipelines, evaluations, safeguards) using TypeScript and full-stack web, on-site in San Francisco.
Forward Deployed Engineer
Founding Forward Deployed Engineer at Reducto, a document AI platform that turns unstructured documents into structured data for LLM pipelines. You'll run evals, build custom demos and agents, and own technical success for enterprise accounts using Python, Bash and LLM tooling, from the San Francisco office 5 days a week.
Software Engineer, Distributed Systems (Core)
Software Engineer focused on building and scaling a high-throughput data syncing engine and low-latency personalization APIs. The role involves optimizing distributed systems across multi-cloud environments using technologies like Kafka, Kubernetes, and SQL databases to handle massive data volumes for marketing personalization.
Systems Engineer
Systems engineer at Dedalus Labs, an 8-person YC S25 startup, building low-level compute primitives for AI agents — virtualization, sandboxing, persistent state, and distributed storage/networking at the kernel and hypervisor level. Heavy Rust/Go/C/C++ systems programming; on-site in San Francisco, $180k–$300k plus 0.5–1% equity.
Senior/Staff Software Engineer (Interactives)
Builds the interactive building blocks behind Brilliant's graphical AI tutor — composable, API-exposed primitives that learning designers, content agents and the tutor use to compose lessons. The work is rendering-heavy web engineering, mostly in Elm with significant TypeScript, closer to a game engine than a typical web app.
Software Engineer, Backend Systems
Fullstack, a ~10-person crypto-trading startup, is hiring a backend engineer to build real-time trading infrastructure on-site in New York — risk/liquidation engines, blockchain state machines, and millisecond-latency REST/WebSocket APIs — with in-depth production Rust experience as the core requirement.
Solutions Engineer, Implementation & Delivery
A Solutions Engineer at EliseAI owns end-to-end technical implementations for enterprise housing customers — from sales handoff through scoping, configuration, integrations, testing and go-live. Day-to-day work is API integrations, SQL, data migration and configuration-heavy SaaS platforms, from the office 4-5 days/week with ~25% travel.
Solutions Engineer (Product Expert), Housing
Post-sales Solutions Engineer serving as the go-to technical expert for EliseAI's housing product verticals (leasing, maintenance, CRM), diagnosing customer data and API integration issues, handling technical escalations with engineering, and supporting onboarding and data migrations. Stack centers on APIs, CRM/ticketing tools (Salesforce, Zendesk, Jira), SaaS platforms, and AI/automation workflow
Staff Software Engineer, Accounts & Ledgering
Staff backend engineer at Commure (healthcare AI) who owns money-critical financial systems from 0 to 1: designing and operating a double-entry payment ledger, insurance/patient account ledgers, posting pipelines, and bank reconciliation on large-scale PostgreSQL. Requires 8+ years backend, strong Python/SQL; hybrid in Mountain View, SF, LA, or NYC.
Staff Software Engineer - Biller Workflows
Staff engineer (8+ yrs) at healthcare company Commure, setting technical direction for the biller-workflow platform in its practice-management product and leading a multi-team rebuild of high-traffic claims surfaces. Core stack: React 19, TypeScript, Python/FastAPI, PostgreSQL, plus LLM/AI features and EDI X12.
Customer Solutions Engineer
Agave, a YC-backed startup building the financial operations platform for construction, is hiring a Customer Solutions Engineer to lead sales demos and own customer implementations end to end in downtown San Francisco. The role blends technical sales support, onboarding, project management, and customer success for a complex B2B SaaS product.
Forward Deployed Engineer
Forward Deployed Engineer at Closure, a YC-backed startup whose software helps law enforcement search digital evidence and solve crime. You own agency deployments end to end — scoping pilots, ingesting messy evidentiary data, configuring the product, and writing Python/TypeScript scripts and integrations — roughly 60% customer-facing alongside detectives and prosecutors.
Forward Deployed Engineer
A forward deployed engineer at Strala, an AI-native insurance claims company, owns client deployments end to end — deploying multi-modal, agentic AI systems into production, integrating with client APIs and systems, and shaping the product based on what works. Core stack: Python, APIs, cloud platforms, and LLM/prompt engineering, working on-site in San Francisco.
Frontend Engineer
Fullstack, a ~10-person crypto trading startup, is hiring a Frontend Engineer in New York to build the core UI of its retail trading platform — real-time charts, WebSocket data, and sub-second performance — using TypeScript, React, and CSS, on-site 5 days a week.
Member of Technical Staff - Full Stack
Full-stack engineer at Suppli, an AI-native accounts receivable/payments startup for B2B distributors. You'd build high-volume payment processing, ERP integrations (NetSuite, Sage, Acumatica), and LLM-powered A/R workflows end to end, using Ruby on Rails, PostgreSQL, React, AWS, and Terraform, with AI coding tools part of daily work.
Account Executive (Mid-Market / Enterprise)
Account Executive (Mid-Market / Enterprise) Company: Confidential — APIs that give AI agents real-time access to data from sources of truth Location: San Francisco, CA (office near South Park Commons) Compensation:…
AI Engineer
AI Engineer at X5 Labs, a Series A AI startup, to fork and customize a core AI/LLM platform for a top-five US bank — owning architecture, production deployments, integrations, and reliability in a regulated environment, with ~20% customer-facing work. Stack: Python, LLMs/GenAI/RAG, Kubernetes, CI/CD, AWS/GCP/Azure.
Senior/Staff Applied AI Engineer, Agent Harness
Build and own the core agent harness — execution loop, tool-use strategies, context construction, and release-gating evals — for Init's AI-coworker agent that automates IT work with security guarantees like per-task microVMs and model-blind credentials. In-person role in San Francisco using Python/TypeScript and modern LLM tooling.
Senior/Staff Security Engineer
A senior/staff security engineer at Init owns the end-to-end security posture of its AI IT-agent product — application, cloud, network, and the agent itself — leading threat modeling, building in-product security primitives (isolation, credential handling, approval gates), and writing the security architecture doc that gates enterprise deals. Requires strong app/infra security skills with producti