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Software Engineer, Data Platform
General Matter, a US uranium enrichment startup, is hiring a Data Platform Software Engineer to build the acquisition, storage, and streaming backbone for high-throughput sensor telemetry from test stands and production systems. Day-to-day work centers on Python and SQL data pipelines, time-series/historian storage, and reliable 24/7 on-premise infrastructure.

Summer 2027 Internship - Embedded Software Engineering
Summer 2027 embedded software engineering internship at General Matter, a uranium enrichment startup in Los Angeles. The intern will build safety-critical firmware in C/C++, Rust, and/or PLCs to control actuators, process high-speed sensor data, and support testing of systems for nuclear fuel enrichment.

Environmental and Radioactive Waste Management Program Manager
Builds and owns General Matter's environmental protection and radioactive waste management program for its uranium enrichment operations — securing NRC/DOE permits, running environmental and effluent monitoring, and managing radioactive waste from characterization through disposition, with authority to halt unsafe operations.

Program Manager, Manufacturing
Program Manager for General Matter's manufacturing & production org in Los Angeles: build the team's operating rhythm (schedules, trackers, dashboards, executive briefings, engineering processes), keep cross-functional initiatives aligned, and drive risks to resolution. Requires 5+ years in consulting/PE-VC/operations and U.S. citizenship; $130k-$180k.

Technical Recruiter, Hardware Engineering
Full-cycle technical recruiter in Los Angeles building General Matter's hardware engineering, manufacturing, and nuclear teams for its US uranium enrichment facility — owning everything from sourcing and screening to closing candidates. Best suited to recruiters with aerospace/defense/hard-tech experience; onsite full-time, $100k–$180k base.

Embedded Software Engineer, Motor Control & Real-Time Systems
Develops deterministic, safety-critical real-time control software and motor-drive firmware for uranium enrichment test stands and production systems — closing high-rate control loops, driving power electronics, and building fieldbus masters, device drivers, and SIL/HIL test infrastructure using C/C++/Rust on real-time Linux and motor-control MCUs.

Technical Program Manager, Software
A hands-on Technical Program Manager who drives planning and execution across the software department at General Matter, a US uranium-enrichment (nuclear fuel) startup. Day to day they own the integrated software roadmap, manage cross-team dependencies and critical path, run quarterly planning and reviews, and keep YouTrack aligned with actual engineering work. 100% on-site in Los Angeles.

Program Manager, Contingent Workforce
Owns General Matter's contingent workforce program end to end — sourcing, contracting, onboarding, and offboarding 1099 contractors, staffing agencies, and subcontracting vendors. A cross-functional operations role partnering with Procurement, Legal, Finance, and IT, using automation and AI tools to scale processes.

Summer 2027 Internship - Information Security Engineer
Summer 2027 Information Security Engineer intern at General Matter (uranium enrichment startup) in Los Angeles, doing offensive security: penetration testing, source-code audits, cloud/IAM attacks, and reverse engineering of embedded devices and industrial controllers. Pays $32–46/hour plus a housing stipend; full-time on-site for the internship.

Design Reliability Engineer
Runs design and change reviews, maintains configuration/document control (drawings, P&IDs), and tracks engineering risks to closure for General Matter's uranium enrichment technology, while automating review workflows with AI where useful. Needs a STEM degree, security-clearance eligibility, and strong cross-team coordination.
Founding Engineer (Python / FastAPI / Next.js), Supply Chain SaaS
Founding Engineer at a pre-launch B2B SaaS startup modernizing supply chain operations for consumer goods manufacturers. The first technical hire will own the full stack (Python/FastAPI/Next.js), architecture decisions, and engineering culture, working closely with the hands-on founder to build and ship the MVP from Brazil.
Senior Software Engineer
Senior engineer at an early-stage startup building autonomous AI agents that automate accounting and finance workflows end-to-end. Day to day you own a finance domain, doing context engineering, data ingestion from multiple sources, and building highly scalable backend/infra systems in a modern language like Python, Go, or Rust.
Robotics Software Engineer
OpenShelf is building an open-source AS/RS system to automate physical inventory (storage, retrieval, real-time tracking). This on-site role in midtown Manhattan maintains and improves the Python/FastAPI backend and hardware control layer—motors, scales, scanners over serial, Modbus, GPIO—plus internal tools, dashboards, testing, and deployment to real devices.
Staff Software Engineer
On-site engineer at a startup building the world's first modular accelerator, taking technical lead on industrial software: React/Node.js dashboards, APIs, and real-time apps integrated with industrial automation systems, with cybersecurity best practices. Base pay $150–200k in Hebron, KY.
Embedded Software Engineer
Leads embedded software architecture and development for FPGA/CPU SoC systems in battery-powered night vision goggles, wideband RF processing, and synthetic aperture radar. Daily work spans Xilinx FPGA/SoC development, embedded Linux and CUDA on NVIDIA Jetson, real-time Arm software, and low-level hardware interfacing.
Founding Software Engineer
First technical hire (founding engineer) at DMC Technologies, building Momentum, a platform that compresses aerospace hardware design cycles by turning serial workflows parallel. Backend-first Python role with whole-product ownership (frontend, deployment) plus building LLM/agentic coding systems; fully remote within the US.
Senior Software Engineer
Senior backend engineer at Nibbana, an early-stage climate-tech startup connecting farm and food supply-chain data. You'll build scalable backend services, APIs, and data pipelines using TypeScript/Node.js and Python, with strong SQL, cloud infrastructure, and IaC (Terraform/Pulumi), owning projects end-to-end from architecture to production.
Senior Software Engineer
Senior Software Engineer writing production TypeScript across the stack at Avante, an AI-native benefits intelligence platform. Day to day: building scalable services and APIs, integrating HRIS/ticketing systems, data modeling, and mentoring — based in Seattle, 4 days a week in office.
Software Engineer
Software engineer at Clusia, an AI-native startup that runs mandated audits (ACH, BSA/AML) for fintechs and banks. You'd join a lean NYC-based founding team building full-stack product, cloud infrastructure, and LLM/agent-powered features alongside the CTO.
Lead Backend Engineer - Fully Remote
Lead a 4-5 person senior backend team at a profitable mobile apps startup, owning a high-traffic Ruby on Rails platform behind social and dating products. Mix of hands-on coding and leadership: architecture, performance, caching, real-time features on AWS, in a fully remote B2B contract with base pay up to $120k/year plus bonuses.