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Founding Engineer, Agents
Founding engineer building autonomous AI agents that complete complex computer-based work over long periods with minimal human oversight — owning agent execution, memory systems, and evaluation frameworks benchmarked against human baselines. On-site in San Francisco; $200k–$350k base plus founding equity.
Founding Engineer, Environments + Data
Founding engineer at Clera building AI-agent evaluation environments, benchmarks, and graders — designing synthetic company setups (emails, records, simulated inboxes/CRMs) and detecting reward hacking. Research-oriented, on-site 5 days/week in San Francisco; base $200k–$300k plus up to $200k+ performance bonus and founding equity.
Senior iOS Software Developer (Remote)
Senior iOS engineer to architect and build a consumer finance app — a joint virtual banking and cryptocurrency wallet built on stablecoins — from the ground up, owning architecture, SwiftUI/Swift development, security, and engineering standards. Posting is titled remote but the description states San Francisco, in-office, with visa sponsorship and relocation.
Senior Instrumentation & Controls Engineer - Hardware
Valar Atomics is hiring a Senior I&C Hardware Engineer for its nuclear fuel manufacturing facilities and pilot plant in Orangeville, Utah. The role designs, installs, commissions, and maintains field instrumentation, control panels, I/O architecture, field wiring/OT networks, and safety instrumented systems supporting nuclear fuel production.
Senior Software Engineer
Senior Software Engineer building full-stack internal platforms and tools that power reactor design, fuel manufacturing, licensing, and plant operations for an advanced nuclear energy startup.
Senior Network Security Engineer
Senior Network Security Engineer designing and maintaining enterprise network security infrastructure—primarily Palo Alto Networks firewalls, GlobalProtect VPN, Azure/AWS site-to-site tunnels, and 802.1X certificate-based access control for IoT and camera devices.
Senior Cloud DevOps Engineer
Design, build, and maintain scalable AWS and Azure cloud infrastructure using Kubernetes, Terraform, and CI/CD pipelines in a fully on-site role at an advanced nuclear energy startup.
Senior Identity & Access Management (IAM) Engineer
Senior IAM engineer owning identity and access management across Valar Atomics' enterprise with Microsoft Entra ID as the backbone: SCIM provisioning, SAML/OIDC SSO to SaaS, mapping Palantir Foundry and Polarion roles to Entra groups, AWS IAM federation, conditional access/MFA, and access reviews. Onsite in Torrance, CA at a nuclear-energy startup.
Senior Security Software Engineer
Senior software security engineer at a nuclear energy startup who embeds security across the SDLC: threat modeling designs up front and performing secure code review of the C#, Python, React, and Postgres stack, plus supporting CMMC 2.0 alignment. Onsite in Torrance, CA; $175k-$200k plus equity.
Principal Instrumentation & Controls Engineer – Hardware
Senior-most technical authority for instrumentation & controls hardware at a nuclear energy startup, defining architecture, standards, and design philosophy for reactor and fuel-fabrication facilities in Orangeville, UT. Day-to-day spans SIS architecture (IEC 61511/61508), hazardous-area and I/O design, regulatory and vendor representation, and mentoring senior engineers.
Manager, Infrastructure Design
Infrastructure Design Manager at Valar Atomics (Torrance, CA, on-site) leads planning, design, and delivery of complex facility and infrastructure projects from concept through construction and commissioning, managing architects, engineers, and consultants across civil, structural, MEP, utilities, and specialty systems for the company's advanced nuclear energy operations. This is a capital project
Project Manager, Infrastructure
Manages infrastructure and facility capital projects end to end at Valar Atomics — from planning and design through construction, commissioning, and turnover — coordinating architects, engineers, contractors, and internal stakeholders to deliver projects safely, on schedule, and on budget for the company's advanced nuclear energy facilities.
Principal Nuclear Instrumentation & Controls Engineer – Hardware
Principal-level design authority for nuclear instrumentation on Valar Atomics' high-temperature gas-cooled reactor program: owns measurement architecture (neutron flux, radiation monitoring, protection-system sensors and signal chains), qualification strategy, licensing engagement, and mentoring of the IC&E team. On-site in Torrance, CA.
Senior Nuclear I&C Engineer – Hardware
Owns nuclear instrumentation hardware end-to-end for Valar Atomics' high-temperature gas-cooled reactor program: specifying neutron flux detectors, radiation monitors, and process sensors; designing signal chains, cabling, and installations; qualifying equipment to IEEE standards; and leading testing, calibration, and commissioning. Onsite in Torrance, CA.
Staff Instrumentation & Controls Engineer - Hardware
Staff I&C Hardware Engineer at a nuclear-energy startup: specify, design, install, commission, and maintain instrumentation and control hardware for nuclear fuel manufacturing facilities — field instruments, control panels/I-O architecture, hazardous-area classification, and safety instrumented systems (IEC 61511) — while leading contractors and mentoring junior engineers. Onsite in Orangeville, U
Director Instrumentation, Control, and Electrical – Power Conversion
Lead the instrumentation, control, and electrical systems for a high-temperature nuclear power conversion program, including turbomachinery, test facilities, and integrated plant operations.
TRISO Chemical Plant Process Engineer
Process Engineer at a nuclear energy startup in Utah, designing and optimizing chemical processing systems for TRISO fuel fabrication in a pilot plant.
Senior Process Engineer
Senior Process Engineer designs, develops, and commissions helium-based process systems for next-generation high-temperature nuclear reactors, focusing on thermal-fluid systems, gas handling, and equipment integration.
Supply Chain Systems & Governance, Director
Directs the strategy, architecture, and governance of supply chain systems (ERP, MRP, WMS, TMS) for a nuclear energy startup, ensuring scalability and compliance in a regulated manufacturing environment.
Structures Engineer, Turbomachinery Static Hardware
Designs and analyzes static components for nuclear-powered turbomachinery, focusing on structural integrity, material selection, and manufacturability in high-temperature environments using FEA tools like Ansys.