Jobs in the United States

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Platform Professional Services Senior Consultant- Guardian (Remote)
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…advanced AI-native platform. We work on large scale distributed systems, processing almost 3 trillion events per day and this traffic is growing daily. Our customers span all industries,…
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Senior Software Integration Engineer
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Lead Software Integration Engineer
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Berkeley, MO
The Boeing Company is currently seeking a Lead Software Integration Engineer to support the A-MH program located in Berkeley, MO. This position provides program-wide coordination of…
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Senior Software Development Engineer (Angular/NodeJS)
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Penumbra
Alameda, CA
- $95,000 to $145,000 USD / year
Develop and support ETL processes that integrate data from ERP, MES, Quality, and other manufacturing systems.
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Full-Time AM Youth Counselor
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- Full-time
Wednesday-Friday AM 6AM to 630PM (12 hour shifts, full-time)
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- $80 to $90 USD / hour
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Senior Associate, Software Engineer (FPGA Firmware Eng.)
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…disruptive, next-generation technologies for advanced Unmanned Air Systems (UAS / UAV), advanced radar systems, next-generation weapon systems, and other RF sensor technologies using small…
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YOU MUST HAVE
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Senior Space GNC Engineer
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…through vehicle integration, mission planning and flight through support of on-orbit and reentry mission…
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LEAD MEDICAL ASSISTANT
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Oversee and support daily clinical workflows, including patient intake, assessments, vital signs, EHR documentation, chart preparation, and tracking of patient visits.
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Sales Representative, RoboShare
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El Segundo, CA
…robotics ecosystem company. Through EAI Devices, the EAI Brain and Developer Platform, EAI Data, and Industry Productivity Solutions, FFR is building its "Four-Core Full-Stack AI"…
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Executive Vice President, Engineering - Space, Defense & National Security
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Advanced weapon systems that protect warfighters and allies
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Improve the overall health of the communities we serve by providing technical support to ensure quality patient care and user satisfaction as follows:
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Quality Assurance Analyst
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Support and enhance existing C#-based automation and regression testing suites.
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Software Engineering PMTS
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- $197,300 to $344,700 USD / year
Slack is looking for a Staff Software Engineer to join our Desktop team within the Architecture & Systems organization. While most frontend roles focus on building user-facing features,…
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Cost Analyst - New Unit Projects
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Remote, United States
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Power Systems AI/ML Software Engineer
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United States
…products for grid monitoring, analysis and operator decision…
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Partner with commercial contract managers to support accurate billing, defensible rates, and a clear understanding of contract financial terms.

Sei Labs

Business Operations & Workplace Manager

New York, NY, United States

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Job details

Posting language: English
Posted: Nov 10, 2026

Original job description

About the role

Sei Development Foundation is seeking an experienced, proactive generalist to be a go-to operator across the business and run our physical office in NoHo. This role is ideal for someone who thrives in dynamic environments, loves solving problems independently, and wants to contribute to a fast-moving blockchain company building at the frontier of web3.

We believe the best ideas, strongest relationships, and real sense of belonging come from time spent together. So when our team comes into our office in Noho, we want it to feel like the center of our community. It’s a beautiful space in one of New York’s best neighborhoods, where we do our best work together, host offsites and team gatherings, and celebrate wins.

We’re looking for someone to make it feel alive, and to help the business run smoothly behind the scenes. You’ll create the experiences that make people want to walk through the door, and you’ll also step into whatever the team needs: executive support, events, people operations, finance operations, and general business operations. You’ll balance operational excellence with real hospitality, and culture and community will always be your north star.

You’ll be part of the Operations team, but this role is yours to run. You’re our sole owner of workplace experience, with no facilities team behind you, so you’ll bring a builder’s mindset and the drive to get things done yourself. As a 5 days/week on-site role, you’ll be the steady presence in the office, welcoming people on the days they come in and making each one count.

What you’ll do

Business operations

Provide EA-style support as needed: calendar management, travel and logistics, meeting prep, and follow-through
Support recruiting logistics: candidate communication, scheduling on-site visits, and a great candidate experience
Run new-hire onboarding, including equipment, accounts, and access, and delivering a welcoming first day
Support finance ops: expense management, invoices and vendor management, and budget tracking
Take on cross-functional special projects and process improvements, such as setting up new systems, running audits, and building workflows

Office operations & vendors

Run daily office operations: front-of-house, mail and packages, snacks and supplies, and general upkeep
Own vendor and landlord relationships, including sourcing, contracts, renewals, and service quality
Be the first point of contact for employee requests and office issues, and resolve them yourself or find who can
Manage facilities needs such as space planning, repairs, equipment, and safety compliance
Own the office budget: track spend, negotiate pricing, and flag cost-saving opportunities

Events & culture

Plan and run team events, including offsites, happy hours, and gatherings
Coordinate company-wide moments such as all-hands and milestone celebrations
Build in-person rituals and traditions that make the office the center of our community
Gather employee feedback and keep improving the workplace experience

What we’re looking for

5-10 years in operations, executive support, chief of staff, office management, or a similar role
A true generalist: comfortable going from planning an offsite to reconciling expenses to onboarding a new hire in the same day
Track record of working independently as the sole owner of an area
Strong vendor management and budgeting skills
Experience planning events from start to finish
Highly organized and proactive: you spot problems before they’re reported
Excellent judgment and discretion with sensitive information
Clear, warm communicator who treats colleagues as customers
Comfortable in a small company where you’ll wear many hats
Able to work on-site at our Manhattan office 5 days a week
Experience with workplace and business tools (e.g., Google Workspace, Slack, Notion, expense/procurement, HR platforms), and fluency in using AI to work faster

Nice to have

Passion for web3 and interest in blockchain ecosystems
Experience at a startup or high-growth company

#CG-01

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Jobs in the United States