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Applied Ai Engineer, Startups

openai

Híbrido Tokyo, Japan
AI

Job Score

90 pts
Hybrid model (+80) AI (+10)

About the Team

The Applied AI Engineering team is responsible for ensuring the safe and effective deployment of Generative AI applications for developers and startups. We act as a trusted advisor and thought partner for our customers, working to build an effective backlog of GenAI use cases for their industry and drive them to production through strong technical guidance. OpenAI's customers represent a range of diverse backgrounds and maturity, from early-stage startups to late-stage startups.

About the Role

We are seeking a technically proficient, business-minded Applied AI Engineer to help push the frontier of advanced AI with our strategic startup customers. You'll work with some of the most exciting AI startups in the world, guiding them through ideation, development, delivery, and scaling to accelerate and maximize the value of what they build on our platform. You will have the opportunity to work on the most novel and creative use cases being built on our API, serving as a critical partner in collecting and delivering high-fidelity product and model feedback internally. You will collaborate closely with Sales, Solutions Engineering, Applied Research, and Product teams, and you will report to the Startups Applied AI Lead.

This role is based in our Tokyo, Japan office. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees.

In this role, you will:

  • Partner closely with strategic startup customers as their technical thought partner to build novel applications on our API, helping them rapidly move from ideation to scale.

  • Provide proactive guidance to maximize business impact and accelerate application development.

  • Experiment and prototype alongside customers, demonstrating practical use cases.

  • Contribute to open-source resources and scale the function by sharing knowledge, codifying best practices, and publishing useful resources.

  • Synthesize and deliver valuable feedback to the Product and Research teams.

  • Build relationships within the startup ecosystem, serving as a technical partner to both individual customers and the broader community.

You’ll thrive in this role if you:

  • Have 5+ years of experience as a software engineer, ML engineer or equivalent, ideally in a startup environment; experience as a founder or founding engineer is highly valued.

  • Have passion for startups and a belief in their potential to become future large enterprises.

  • Are proficient in Python, JavaScript, and a strong grasp of AI/LLM best practices.

  • Built and/or delivered prototypes on top of our API platform.

  • Can proactively identify opportunities for maximizing our customers’ business value through leveraging the OpenAI API.

  • Own problems end-to-end and are willing to pick up whatever knowledge you're missing to get the job done.

  • Have a humble attitude, an eagerness to help your colleagues, and a desire to do whatever it takes to make the team succeed.

  • Are an effective, high throughput operator who can drive multiple concurrent projects and prioritize ruthlessly.

  • Are able to speak Japanese and English fluently.

About OpenAI

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. 

We are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic.

For additional information, please see OpenAI’s Affirmative Action and Equal Employment Opportunity Policy Statement.

Background checks for applicants will be administered in accordance with applicable law, and qualified applicants with arrest or conviction records will be considered for employment consistent with those laws, including the San Francisco Fair Chance Ordinance, the Los Angeles County Fair Chance Ordinance for Employers, and the California Fair Chance Act, for US-based candidates. For unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. In addition, job duties require access to secure and protected information technology systems and related data security obligations.

To notify OpenAI that you believe this job posting is non-compliant, please submit a report through this form. No response will be provided to inquiries unrelated to job posting compliance.

We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made via this link.

OpenAI Global Applicant Privacy Policy

At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology.

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About Artificial Intelligence

Artificial Intelligence is currently the fastest-growing field in the technology market. The revolution in generative models (GPT, Claude, Gemini) has created massive demand for AI-specialized professionals.

Key areas of practice include Machine Learning Engineering, MLOps, Prompt Engineering, AI Research, and Applied AI. Python, TensorFlow, PyTorch, and LLM knowledge are essential skills.

AI salaries are the highest in the technology sector, with many remote work opportunities at international companies.

Discover Other Areas

Understand the scope of work, key skills, and tools used in different career areas.

About Information Security

The Information Security area is one of the most strategic and in-demand fields in the technology market. With the rise of cyberattacks, data breaches, and regulations like LGPD and GDPR, companies of all sizes invest heavily in professionals who can protect their digital assets.

Key specializations include Network Security, Cloud Security (AWS, Azure, GCP), Offensive Security (Penetration Testing, Red Team), Defensive Security (SOC, Blue Team), AppSec, and Security Governance. Tools like SIEM (Splunk, QRadar), firewalls, EDR, and Vulnerability Management platforms are essential.

Certifications like CISSP, CEH, OSCP, CompTIA Security+, and AWS Security Specialty are important differentiators. Information security professionals are among the highest-paid in the sector, with growing demand especially in fintechs, healthtechs, and large enterprises.

About Cloud Solutions

The Cloud Solutions area is responsible for designing, implementing, and managing cloud infrastructure and services (AWS, Azure, GCP) for companies. Cloud professionals architect scalable, secure, and cost-optimized solutions, from data center migrations to serverless and multi-cloud architectures.

Key skills include IaC (Terraform, CloudFormation), containers (Docker, Kubernetes), serverless (Lambda, Cloud Functions), managed databases (RDS, DynamoDB, BigQuery), cloud networking (VPC, CDN, load balancer), and security (IAM, WAF, KMS). Knowledge of FinOps, cloud governance, and AWS/Azure/GCP certifications is a differentiator.

Cloud Solutions professionals in technology companies are highly valued, especially those who master multi-cloud architectures, FinOps, and can optimize costs while maintaining performance and security. The field offers opportunities from cloud engineer to cloud solutions architect, head of cloud, and chief cloud architect.

About Graphic Designer

The Graphic Designer is the professional responsible for creating visual pieces for print and digital communication, from visual identity and logos to marketing materials and packaging. They combine creativity with technique to convey messages visually and impactfully.

Key skills include Adobe Photoshop, Illustrator, and InDesign, CorelDRAW, visual identity design, typography, color theory, packaging design, and motion graphics. Knowledge of vector illustration, offset/digital printing, and print production is a differentiator.

Graphic Designers in technology companies are highly valued, especially those who master social media design, infographics, and can create materials that strengthen brand visual identity. The field offers opportunities from junior graphic designer to art director and design director.

About Copywriting

The Copywriting area is responsible for creating persuasive, creative, and strategic texts for various communication channels. Copywriting professionals transform ideas into words that engage, convert, and build brand voice.

Key skills include advertising copywriting, script writing for videos and podcasts, persuasive writing, tone of voice, and editorial guidelines. Knowledge of SEO writing, Grammarly, and text productivity tools is a differentiator.

Copywriting professionals in technology companies are highly valued, especially those who master copy for landing pages, email sequences, and funnel content. The field offers opportunities from junior copywriter to head of copy, with a focus on creativity, persuasion, and performance.

About Advertising

The Advertising area is aimed at the planning, creation, and delivery of communication campaigns to promote brands, products, ideas, or services. Professionals in the sector work in advertising agencies or in-house marketing departments in creative fields (art direction, copywriting), strategic planning, account management, and media buying.

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Tech & Remote Glossary

Stop getting lost in interviews and job descriptions

The job market, especially within tech and global companies, has developed its own dialect. Not understanding these acronyms can make you lose valuable opportunities or poorly negotiate your contract. To end this problem, we created the Definitive Glossary for the Remote Professional.

🏢 Work Models & Routine

Async (Asynchronous Work)
A communication model where responses don't need to be immediate. Instead of back-to-back meetings, the team relies on well-structured documents, threads, and messages. It's the gold standard for global companies spanning multiple time zones.
Sync (Synchronous Work)
The opposite of Async. It requires the team to be online and available at the same time for meetings, live chats, and real-time collaboration.
Daily / Stand-up
A quick daily meeting (usually 15 minutes) common in Agile (Scrum) methodologies. The team answers three questions: What did I do yesterday? What will I do today? Are there any blockers?
All-Hands / Town Hall
A company-wide meeting involving all employees. Usually led by the founders (C-Levels) to present results, new goals, and answer team questions.
1:1 (One-on-One)
A recurring individual meeting between a professional and their direct manager. It is used for career alignment, feedback, and problem-solving, not just for project status updates.

💰 Contracts, Benefits & Compensation

PTO (Paid Time Off)
Instead of strict, categorized leave policies, modern US companies usually offer a flexible pool of days (e.g., 20 days of PTO, or even "Unlimited PTO") that you can use for vacations, sick days, or personal matters, while receiving your regular compensation.
Equity / Stock Options
Company ownership. The startup offers you the right to buy shares at a heavily discounted strike price in the future. If the company grows, goes public, or is acquired, these shares can be highly lucrative.
Vesting (Vesting Schedule)
The rule that controls your Equity. It usually lasts 4 years. You don't get all the shares on day one; you "earn" them gradually as you stay with the company. A "1-year Cliff" means you must stay for at least one year to receive your first batch of shares.
RSUs (Restricted Stock Units)
Unlike Stock Options (where you have the right to buy the stock), RSUs are actual shares the company grants you as a bonus or part of your compensation package, following a strict Vesting schedule.
Independent Contractor (1099 / B2B)
The most common international hiring model for global talent working for US companies. You act as a service provider (business-to-business), receiving the gross salary (often six-figure compensation) without standard local payroll tax deductions at the source.

🤖 Recruitment & Hiring Process

ATS (Applicant Tracking System)
The "robot" that reads your resume. Software like Greenhouse, Ashby, and Workday are used to filter candidates by keywords before a human even looks at the document. (Pro tip: this is why your resume must be clean, semantic, and have the right keywords).
JD (Job Description)
The document that lists the responsibilities, technical requirements, and benefits of the open position.
Cultural Fit
The interview stage that evaluates if your core values, communication style, and worldview align with the company's culture. This is the ultimate test of your Soft Skills.
Onboarding
The integration process. It's the period of your first few weeks at the company, where you get your access credentials, learn about the culture, study the internal documentation, and understand how the product works.

🚀 How to use this to your advantage?

The secret isn't just knowing what these acronyms mean, but using them actively. If during an interview for a premium tech role you ask, "How does your PTO policy and Vesting schedule work?", the recruiter will immediately perceive you as a high-level professional, familiar with the global market standards.

The remote job market requires preparation. And having the right vocabulary is the first big step to securing six-figure proposals and standing out among thousands of applicants.

Expert Tip

How to Build an Unbeatable Resume in 2026

At Mondywork, our engine analyzes hundreds of the best remote jobs daily. If there's one thing we've learned from observing the backend of elite recruiting platforms like Greenhouse, Ashby, and Workday, it's this: a good resume isn't the prettiest one; it's the most efficient one.

Many highly qualified professionals miss out on golden opportunities (and six-figure remote roles) simply because their resumes fail to communicate their value within seconds or get trapped in automated corporate filters.

To change that game, we've gathered the best market practices, rooted in data and the brightest minds in global recruiting.

1. The 7.4-Second Rule (The Skimming Test)

The biggest mistake candidates make is assuming the recruiter will read their resume like a book. The reality is much colder.

A famous study conducted by the career and recruiting firm Ladders, using eye-tracking technology, revealed that recruiters spend an average of only 7.4 seconds scanning a resume before deciding whether the candidate moves forward to the next round.

How to optimize your resume for the 7.4 seconds:

  • Clear Visual Hierarchy: Recruiters instinctively look for your Job Title, Current Company, and Dates of Employment. Make this information effortless to find.
  • Bullet Points Only: Never use large blocks of text. The human brain scans lists much more easily.
  • Focus on the Top Third: The top third of your resume (your professional summary and your most recent experience) is your "premium real estate." Your biggest selling points must live there.

2. Google's XYZ Formula for Experience

Most people describe what they did at work (their responsibilities). Recruiters want to know what you achieved (your results).

Laszlo Bock, former Senior Vice President of People Operations at Google, popularized the ultimate methodology for writing experience bullet points: The XYZ Formula.

The structure is simple and powerful:

"Accomplished [X] as measured by [Y], by doing [Z]."

  • Bad (Task-focused): "Wrote code for the payment platform."
  • Good (Result-focused): "Improved the speed of the payment platform."
  • The Google Standard (XYZ Formula): "Increased payment processing speed by 15% (X), reducing page load time by 1.2 seconds (Y), by refactoring the legacy API to Node.js (Z)."

Pro Tip: Whether you're in Digital Marketing, Design, or Tech, use hard metrics. Talk about conversion percentages, cost reductions, active user growth, or hours saved.

3. Beat the Bots: ATS Optimization

Over 99% of Fortune 500 companies and a vast majority of tech startups use ATS (Applicant Tracking Systems). These are software programs that read and filter resumes before a human ever lays eyes on them.

Austin Belcak, founder of Cultivated Culture and employability expert, analyzed over 125,000 resumes and found that complex formatting is the number one enemy of getting hired.

How to pass the ATS filter:

  • Ditch the Canvas (mostly): Resumes with dual columns, skill progress bars (e.g., "70% in JavaScript"), and graphic icons frequently confuse bots, which extract text in a jumbled mess.
  • Use a Linear Format: A simple Word or Google Docs document, saved as a PDF, with single-column formatting (reading top to bottom) is the safest template in the world.
  • Keyword Mirroring: ATS software runs on keywords. Read the job description on Mondywork and ensure the required hard skills (e.g., React, SEO, Figma, Agile) are explicitly written on your resume.

4. The Professional Summary (Your Elevator Pitch)

The traditional "Objective" statement ("Looking for an opportunity to grow within the company") is dead. Today, what works is the Executive Summary.

Use 3 or 4 lines at the very top of your resume to define who you are, your core specialty, and your biggest career win.

Example: "Mid-level Front-end Developer with 4 years of experience in e-commerce. Specialist in React and performance optimization (Web Vitals), with a proven track record of increasing mobile checkout conversion rates by 20%."

🚀 Ready to test your new Resume?

Now that your resume is optimized for the competitive US market and entirely focused on results, it's time to put it in play.

At Mondywork, our engine curates the best remote Tech, Design, and Digital Marketing opportunities from top companies every single day.

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