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AI/ML Engineer — LLM Pipelines and Research AI
Own the LLM pipelines behind MarketCatalyst's AI stock-market research terminal: generate market recaps and per-ticker reads, build price-move attribution and catalyst scoring, RAG-grounded research chat, LLM evaluations, and cost/latency management. Core stack: Python, TypeScript/Next.js, RAG, classical ML. Remote but Texas residents only; $80k–$120k plus possible equity.
Machine Learning Engineer & Software Developer — Part-Time/Full Time
At Hi Twin, an early-stage Digital Twin startup, you'll design the platform architecture and build Python backend services, APIs, and data flows connecting AI/ML models, while also helping improve those models. Fully remote, part-time or full-time, working directly with the founding team.
Software Engineer Intern
Software Engineer Intern at SonicAI, an early-stage startup building an AI-native revenue automation platform for B2B finance teams (contract-to-cash, billing, reconciliation). You'll ship backend features, APIs, and AI-agent workflows using Python, FastAPI/Flask, and databases, working directly with the founder. Compensation is a ₹20,000–₹25,000 stipend.
Software Developer Intern (Remote)
This Week in AI, a small media and community platform covering AI developments, seeks a remote founding software developer intern to ship features across web apps and internal tools, automate operations, and experiment with LLMs and AI agents. Fullstack work with APIs, databases, and Git; React, Next.js, Python, or Node.js are pluses.
Founding AI Engineer
Founding AI Engineer at Daxani Technologies in Ahmedabad builds AI-powered applications, backend services, APIs, and data-driven systems — integrating AI models and LLMs, handling databases and automation workflows, and testing/improving AI system reliability. Core stack: Python, AI/ML, LLMs, APIs.
ML Systems Engineer — Model Serving & Runtime
Owns the end-to-end local inference stack for COTID's Windows and macOS desktop apps: selecting and integrating engines like MLX, llama.cpp, ONNX Runtime and TensorRT-LLM, handling quantization and model packaging, and dispatching across Metal, CUDA/DirectML/Vulkan and CPU — built largely in Rust (Tauri), C++ and Swift.
ML Systems Engineer (Intern) — Model Serving & Runtime
Builds and maintains the local model-inference runtime for COTID's Windows and macOS desktop apps — integrating engines like MLX, llama.cpp, ONNX Runtime and TensorRT-LLM on GPU backends (Metal, CUDA, Vulkan), plus quantization, model packaging, and multi-arch CI/CD — primarily in Rust, C++, and Swift.
Senior Software Engineer (Rust + Python) — Clinical Data Platform
Senior engineer to own the Rust core data engine of a pre-launch clinical data platform: building parsing, validation, and mapping stages for hospital records used by researchers and cancer registries, plus the Python/SQL pipeline around it. Stack: Rust, Python, PostgreSQL, Terraform, AWS, GitHub Actions.
Backend software engineer · Remote worldwide · $120k–$160k per year + equity
Backend engineer at a small remote-first company: design and run reliable backend services and APIs, own the data layer (schema design, migrations, query performance), add observability, and help shape infrastructure choices. Core stack is Node.js, PostgreSQL, REST/GraphQL APIs on cloud infrastructure.
Senior Software Engineer
Senior Software Engineer at Cypris, an early-stage AI startup building a vertical AI platform for corporate R&D teams. Day to day: hands-on design and building of core data infrastructure, APIs, and UI that power AI agents, using Python, GCP, PostgreSQL, and Elasticsearch on a small, flat, fully remote team.
Senior Software Engineer
Senior full-stack engineer at Zest, a gifting platform that lets ecommerce brands send 1 to 1,000 gifts without friction. You'll own features end-to-end (data model to API to UI), build integrations with ecommerce platforms and payment providers, and design reliable AWS systems handling real money and orders.
Backend Engineer (5-8 years)
Backend engineer at a VC-backed startup building the 'financial brain' for 3PL logistics companies, predicting pricing and catching margin leaks on hundreds of millions of package records. Day to day: own the Rails API, extend a Go/ClickHouse analytics layer over gRPC, design schemas at the OLTP/OLAP boundary, and mentor engineers.
Senior Software Engineer, AI, DevEx
Senior engineer building Splash's internal 'software factory': cloud coding environments and autonomous AI agents that turn tickets, support chats and Datadog alerts into tested, reviewed PRs, with guardrails for a real-money contest business. Core stack is TypeScript/Node on AWS with Terraform/CDK and AI coding agents.
Software Engineer
Remote (US) mid-to-senior software engineer building a new plant-floor product line end to end — data model, API, UI, and deployment — for VALIS, an early-stage B2B SaaS company modernizing metal recycling. Stack: React/TypeScript, C#/ASP.NET Core, PostgreSQL, AWS, Docker, Pulumi, with heavy use of Claude Code.
Senior Software Engineer (Full Stack)
Senior full-stack engineer at Rec, a Series A startup building a booking and management platform for recreation (court reservations, classes/lessons, payments, permitting). Day to day you own end-to-end features across Next.js/React/TypeScript, Node.js/Koa/PostgreSQL on AWS/Temporal, using AI tools like Claude Code daily. In-office in San Francisco.
Senior Full Stack Engineer (Remote, Europe, Contract)
Senior full-stack engineer at Atelix, an AI platform ('AI operating system') for interior design and architecture studios. You own features end-to-end on a TypeScript/Node.js/React/PostgreSQL stack on Google Cloud, build integrations (Xero, Stripe, Outlook/Gmail) and AI assistant features. Remote contractor role from Europe, €35k–50k plus 0.5–1.5% equity.
Senior Full-Stack Engineer, Server-Side Tracking (Founding Engineer)
Founding engineer building RixelAI, a server-side tracking platform that lets health/wellness brands advertise on Meta without losing conversion data: automated Stape/GTM pipelines, health-data scrubbing, identity resolution, and a Next.js/Supabase dashboard. Core stack is TypeScript and Node.js.
Founding Engineer — Full Stack TypeScript (Remote)
Founding full-stack engineer at Sittsy, a marketplace connecting pet owners with identity-verified local pet sitters in 90+ countries. You'll own product areas like smart pricing, sitter ranking, and booking growth, working directly with the founder on a TypeScript/Next.js/Node.js/PostgreSQL stack.
Full-Stack Engineer (Node.js)
Full-stack engineer owning product features end to end — Node.js/TypeScript APIs and PostgreSQL data services plus the Next.js/React front end — for an AI-powered stock market research terminal with 16 workspaces; also handles auth/billing, performance, and SEO. Remote from anywhere in Texas.