Financial Technology (FinTech)

Office Manager

San Jose, CAOnsiteFull TimeManager / Head$70,000–$105,000 /yrPosted 3 days ago

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Required skills

Office Manager
San Jose
employee and visitor experience
host customer visits
process expenses and purchasing
interview scheduling
events
full-time
onsite
HR

Nice to have

Startup environment experience
Semiconductor company experience
Tech company experience
Hosting customer visits
semiconductor company
optical networking company

Role summary

Celero Communications is seeking an organized and proactive Office Manager for its San Jose office. This full-time, onsite role is crucial for maintaining daily operations and enhancing the employee and visitor experience. Responsibilities include managing office logistics, vendor relationships, executive travel, expense processing, onboarding support, and HR process assistance. The role also involves coordinating customer visits, preparing presentations, and supporting company events and culture. The ideal candidate has a Bachelor's degree or equivalent experience, 4+ years in office management, and advanced Microsoft Office proficiency. Experience in a startup, semiconductor, or tech company environment, along with multi-site collaboration and customer visit coordination, is preferred. This position offers a salary range of $70,000 - $105,000 annually and the opportunity to make a visible impact in a growing semiconductor startup.

About Celero

Celero Communications is building the next generation of intelligent optical connectivity for AI infrastructure.

Founded in 2024 by industry pioneers from Broadcom, Inphi, Marvell, and ClariPhy, Celero brings together decades of coherent DSP innovation with a focused mission to deliver the optical performance, power efficiency, and scalability required for tomorrow's AI-driven data centers.

We believe the future of AI infrastructure will be defined not only by speed, but by intelligence, energy efficiency, and the ability to seamlessly move massive amounts of data across increasingly complex networks.

Our mission is to build the technology foundation that makes this possible.

Headquartered in Irvine, California, with engineering teams in Canada and Argentina, Celero develops advanced coherent Digital Signal Processing (DSP) solutions that enable high-bandwidth, low-power optical connectivity for hyperscale AI infrastructure.

About the job

Celero is seeking an organized, proactive Office Manager to run day-to-day operations at our San Jose office and shape the employee and visitor experience as we grow our coherent optical DSP ASIC business. You will be the go-to person for keeping the office running smoothly, a trusted partner to leadership, and a key contributor to a welcoming, well-organized workplace where our engineering and business teams can focus on designing, validating, shipping and selling coherent DSP silicon for AI data center and hyperscale optical connectivity. Day to day, you will host customer visits from hyperscalers and optical module makers, manage vendors and supplies, coordinate executive travel and meetings, build branded presentations and templates, process expenses and purchasing, and support onboarding, interview scheduling and events. This is a full-time, onsite role at our San Jose site, working across operations, HR, executive support and corporate events, and partnering with colleagues in Irvine, Canada and Córdoba, Argentina as the company scales.

Key Responsibilities

Office Environment: Maintain a professional, welcoming office that reflects Celero's brand and culture. Keep shared spaces, labs-adjacent areas and meeting rooms organized and ready for teams and guests.

Customer Visits and Meetings: Coordinate customer visits, executive meetings and company events, including logistics for hyperscaler and optical module partner visits. Prepare the space, schedules and hospitality so every visit runs smoothly.

Office Logistics: Manage day-to-day logistics including supplies, equipment, facilities, furniture, refreshments and storage. Anticipate needs and solve problems before they affect the team.

Vendor Management: Own relationships with facilities, furniture, catering and storage vendors. Track service, cost and responsiveness to keep operations reliable.

Travel Coordination: Coordinate domestic and international travel arrangements for executives and employees, including trips to customer, partner and multi-site team locations

Executive Presentations and Templates: Prepare executive presentations and create branded PowerPoint and Word templates. Keep company materials consistent, polished and easy for teams to reuse.

Expenses and Purchasing: Process expense reports and manage office purchasing. Keep records accurate and timely and follow company approval practices.

Onboarding and Workspace Setup: Assist with employee onboarding, workspace setup and the new hire experience. Make sure new engineers and staff have what they need from day one.

HR Process Support: Support HR processes including interview scheduling and training coordination. Keep candidates, interviewers and trainers informed and organized.

Events and Culture: Help plan and run trade shows, corporate events and team-building activities. Contribute to a positive, collaborative culture and support cross-functional administrative needs as the company scales.

Basic Qualifications

Education: Bachelor's degree, or equivalent years of experience

Experience: 4+ years of experience in office management or administrative roles

Microsoft Office Proficiency: Advanced proficiency in Microsoft Office Suite, including PowerPoint, Excel and Word

Multi-Site Collaboration: Experience working with international and multi-site teams

Organization and Detail: Strong organizational skills and attention to detail across logistics, travel, expenses and scheduling

Prioritization: Ability to manage multiple priorities in a fast-paced, changing environment

Preferred Qualifications

Experience with one or more of the following:

Startup environment experience

Semiconductor or tech company experience

Hosting customer visits at a semiconductor, optical networking or data center technology company

Working with multi-site teams in the U.S., Canada and Argentina

HR experience, such as onboarding, interview scheduling or training coordination

Planning trade shows and corporate events

What Makes You Successful:

You are a self-starter who takes ownership without waiting to be asked

You solve problems before they come up and bring structure where it is needed

You stay calm and effective when priorities shift quickly

You bring high emotional intelligence and a team-first mindset

You are comfortable building processes in a startup with limited infrastructure

You work well across functions and time zones with a global team

You pay close attention to detail and follow through reliably

Why Join Celero?

You will join a growing semiconductor start-up at an important stage and make a visible impact on how our San Jose office runs. You will gain exposure to operations, HR, executive support and corporate events while working alongside a collaborative, global team in the heart of Silicon Valley. As we scale our coherent optical DSP business, you will have room to grow your career.

If you're energized by innovation, enjoy solving complex challenges, and want to help define the future of AI connectivity, we'd love to hear from you.

Annual Base Salary Range for US: $70,000 - $105,000 (The final offer will be determined based on job-related skills, experience, qualifications, and location.)

Ready to apply?

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