Senior MLOps

Your Typical Day With Us As a Senior MLOps Engineer, you will be at the forefront of deploying, optimizing, and monitoring LLMs in production environments. Your role will involve building and maintaining scalable pipelines, ensuring low-latency inference, and implementing best practices in monitoring and observability. You will also work with state-of-the-art tools like Hugging Face and MLFlow to fine-tune models and integrate them into robust AI solutions.

Key Responsibilities Model Deployment & Management

Develop and maintain scalable pipelines for deploying LLMs, focusing on efficient, low-latency inference.

Utilize tools like Hugging Face and MLFlow for seamless model integration and version control.

Automate deployment processes, including model validation and continuous integration. Monitoring & Observability:

Implement comprehensive monitoring frameworks to track performance and reliability of models in production.

Use advanced observability tools to proactively detect and address performance issues. Deploy alerting systems to ensure rapid response to anomalies in model behavior.

Infrastructure Optimization: Architect and optimize cloud and on-premise infrastructure to support large-scale LLM

operations. Collaborate with cloud providers like AWS, Azure, and GCP to optimize costs and

performance. Work with backend engineers to ensure smooth integration of AI models into

conversational platforms. Collaboration & Documentation:

Partner with AI engineers and data scientists to align on project objectives and deployment strategies.

Document MLOps processes, best practices, and tools to maintain operational excellence.

Provide training and support to team members on MLOps methodologies and tools.

What You’ll Need Experience

5+ years of experience in MLOps, DevOps, or related fields, with a focus on deploying and managing LLMs or other large-scale machine learning models.

Proven experience with tools like Hugging Face, MLFlow, and containerization

technologies (Docker, Kubernetes). Strong experience with cloud platforms (AWS, Azure, GCP) and infrastructure as code

(Terraform). Hands-on experience in reducing inference latency and optimizing AI infrastructure.

Technical Skills:

Proficiency in Python, with experience in ML libraries such as TensorFlow, PyTorch, and related frameworks.

Expertise in CI/CD pipelines, version control (Git), and orchestration tools. Familiarity with Generative AI, prompt engineering, and deploying models at scale.

Soft Skills:

Excellent problem-solving skills with the ability to tackle complex challenges independently.

Strong communication skills, with the ability to translate technical concepts for non-technical stakeholders.

A proactive mindset with a focus on continuous learning and staying updated with industry trends.

Don’t just take our word for it Zeals has received the LinkedIn Top Startups award twice in a row. We believe this is a testament to our growth and our ability to attract great talents–who could potentially be your colleague!

Our Tech Stack Backend Languages: Go, Python, Elixir Frontend Languages: HTML, CSS, JavaScript (TypeScript, React.js, Recoil, Zod, Tanstack, etc) Mobile Languages: None Infrastructure: Google Cloud Platform, GCP Pub/Sub, Kubernetes, MongoDB, MySQL, Postgres,

BigQuery, Elasticsearch, Qdrant Configuration management tool: Terraform CI/CD: Github Actions, ArgoCD, CircleCI Monitoring: Grafana, GCP Cloud Monitoring, GCP Logging, GCP Cloud Trace, Opsgenie Data: BigQuery, Parquet, Spark, Scala, Python, dbt Knowledge Tools: Confluence Other: GitHub / Slack / Jira Process: Scrum

Ready to roll up our sleeves We're obsessed with bringing hospitality to everyone – whether it's our customers or you! You’re an individual with unique needs, and while we may not have ping-pong tables or all-you-can-drink espresso bars to offer, we promise you a once-in-a-lifetime experience and co-workers you’ll be proud to brag about to your friends, family, or anyone you meet the next time you go out! As an employer, we're ready to roll up our sleeves and change the status quo if it means making your experience better.

Salary Range : competitive Performance review: twice a year Holidays: 10 days paid holidays during the first year, weekends off, national holidays, summer and winter break. Visa support: We sponsor visas for the right candidates. Flexible working: Highly flexible, remote-first organization (in Japan), Interim work from overseas Housing allowance (within 1.5KM away from office) Club activity allowance Team building allowance and Lunch allowance Zeals Bar (bi-monthly free flow beer party)

Rakuten

Senior Backend Engineer - RMJP Group, Global Ad Technology Supervisory Department

(GATD)

Job Description:

Department Overview

The Global Ad Technology Department (GATD) manages the whole of the advertising

systems that power Rakuten. We are a cross-functional and data-driven organization working

together in a diverse team spread across five countries: Japan, Singapore, India, China and

UK.

GATD Website : https://corp.rakuten.co.jp/careers/feature/adtech/en/

About the team

We pride ourselves in having over 20 years of experience in the business being one of the

greatest affiliate marketing networks in the performance marketing community. By our data-

driven technologies we empower both advertisers and publishers in creating effective

partnerships to successfully reach consumers and accelerate performance.

Rakuten Marketing Japan is a digital advertisement solutions company. We provide affiliate

services, display ads, search ads, and so on, but not limited to those areas.

Our group is responsible for working with Business Units and Development / Tech Teams, in

the following areas: product management, support troubleshooting communication and

reporting as well as creation and/or delivery of new product. It is very important to have a

business perspective and work closely with the stakeholders to deliver clear requirements as

to release quality products with value to our customers.

Position:

Why We Hire

We are seeking a highly skilled Senior Backend Engineer with proven expertise in PHP and

Laravel framework development. The ideal candidate will have extensive experience in

building and maintaining scalable backend systems, proficiency in database management

(including NoSQL), and a strong background in backend architecture design. This role

requires a proactive problem solver who can contribute to the development and

enhancement of our platform, including the continuous adoption of microservices and

containerization.

We offer a dynamic work environment that encourages innovation, continuous learning and

growth. This position provides an opportunity to contribute to the growth of our platforms,

products and services.

If you meet the qualifications above and are looking to join a collaborative team, please apply

with your updated resume and cover letter. We look forward to hearing from you.

Position Details

- Design, develop, and maintain backend services and APIs using PHP and Laravel.

- Implement and optimize database solutions, including relational and NoSQL databases.

- Work closely with frontend developers to integrate user-facing elements with server-side

logic.

- Collaborate with DevOps teams to implement containerization and ensure scalability and

reliability of backend systems.

- Participate in code reviews, architectural discussions, production deployment, and

troubleshooting sessions.

- Lead efforts to refactor and modernize legacy applications into better architectural designs.

- Drive best practices in software development, including coding standards, code reviews,

and testing.

- Help in mentoring junior developers and contribute to the overall growth of the engineering

team.

Work Environment

We have members from various countries and different cultural backgrounds.

In addition, there is no barrier between job titles and services in charge. The entire

department has an open and flat atmosphere, and we are very active in exchange meetings

with other groups for information sharing meetings and problem solving.

In short, it is a very lively cross-cultural environment where we can work, learn, have fun

solving interesting problems, and grow together.

Mandatory Qualifications:

- Minimum 6 years of proven and recent professional experience in PHP.

- Expertise in Laravel framework.

- Proficiency in designing and developing RESTful APIs.

- Strong understanding and experience with NoSQL databases like MongoDB.

- Familiarity with containerization and orchestration technologies (Docker, Kubernetes).

- Experience with databases such as MySQL, PostgreSQL, or similar.

- Hands-on experience in building highly scalable and reliable systems (including deployment

of monitoring of such systems).

- Proficient understanding of version control systems (Git).

- Strong knowledge of software design principles and architectural patterns.

- Ability to port and modernize legacy applications.

- Familiarity with cloud platforms (AWS, Google Cloud, or Azure).

- Strong familiarity in working with Unix-based systems (terminal, shells, editors, scripts, etc.).

- Excellent problem-solving skills and ability to troubleshoot complex issues.

- Minimum of a Bachelor's degree in Computer Science, Engineering, or related field (or

equivalent experience).

- Ability to collaborate effectively with both local and international teams.

Desired Qualifications:

- Ability to communicate complex technical work, documentation and issues to non-technical

stakeholders.

- Experience working in teams using agile methodologies.

- Knowledge of frontend technologies.

- Understanding of microservices architecture.

- Experience with other PHP frameworks (Symfony, CodeIgniter, etc.).

- Previous exposure to message brokers (RabbitMQ, Kafka).

- Conversational Level Japanese

Other Information:

Additional information on Location

Futakotamagawa Rise Office

Additional information on English Qualification

Above TOEIC 800

#engineer #applicationsengineer #globaladdiv #PHP

Languages:

English (Overall - 3 - Advanced)

RAKUTEN

Senior QA Engineer - eCare Product & QA Group, BSS

Development Department (BSDD)

Job Description:

Department Overview

The mission of BSS Development Department (BSDD) is to accelerate our contribution

to the telecommunications business by providing an innovative, high-quality and stable

ecosystemized B2C BSS platform. MNO business just started in 2020. 10 million subs

are coming soon. We are still expanding rapidly every year. Let's walk together to

become the No.1 telecom operator.

We are striving to deliver a simple, intuitive, and reliable platform that empowers users

to effortlessly manage their Rakuten Mobile services, stay connected, and enjoy a

superior mobile experience anytime, anywhere.

Position:

Position Details

Mobile Application Testing:

- Perform end-to-end testing of mobile applications on iOS and Android platforms.

- Conduct functional, regression, performance, usability, and compatibility testing.

- Identify, document, and track bugs and issues using bug-tracking tools.

Automation Testing:

- Design, develop, and maintain automated test scripts for mobile applications.

- Implement and execute test automation frameworks (e.g., Appium, Selenium, etc.).

- Continuously improve automation coverage and optimize test scripts for efficiency.

Test Planning and Strategy:

- Develop comprehensive test plans, test cases, and test strategies for mobile

applications.

- Collaborate with cross-functional teams (developers, product managers, designers) to

understand requirements and ensure test coverage.

- Define and implement QA best practices and processes.

Performance and Security Testing:

- Conduct performance testing to ensure the app performs well under various

conditions.

- Collaborate with security teams to identify and address vulnerabilities in mobile

applications.

Collaboration and Communication:

- Work closely with development teams to ensure timely resolution of issues.

- Provide regular updates on testing progress, quality metrics, and risks to

stakeholders.

- Participate in Agile/Scrum ceremonies and contribute to sprint planning and

retrospectives.

Mandatory Qualifications:

Technical Skills:

- Proficiency in programming languages such as Java, Python, or JavaScript for test

automation.

- Strong understanding of mobile platforms (iOS and Android) and their development

ecosystems.

- Familiarity with API testing tools like Postman or RestAssured.

- Knowledge of performance testing tools (e.g., JMeter) is a plus.

Soft Skills:

- Excellent problem-solving and analytical skills.

- Strong communication and collaboration skills to work effectively in a team

environment.

- Ability to mentor junior QA engineers and contribute to team growth.

Desired Qualifications:

- ISTQB or equivalent QA certification.

- Experience working in Agile/Scrum environments.

- Familiarity with cloud-based testing platforms (e.g., BrowserStack, Sauce Labs).

- Experience with localization testing, especially for Japanese markets.

- Japanese Language (Communicate effectively with Japanese-speaking stakeholders or

clients, if required. Translate and understand Japanese documentation or

requirements, if applicable).

#engineer #technologyplatformdiv #RakutenMobile

Languages:

English (Overall - 4 - Fluent)

Rakuten

Senior Software Developer, Front-end (React and

React Native) - BSS Department (BSDD)

Job Description:

Job Description:

Department Overview

The responsibility of BSS Development Department (BSDD) is system development of B2C BSS

systems and making sure of requirements from executive and business team.

Position Overview:

We are seeking a skilled React Developer with expertise in React Native to join our dynamic

team. The ideal candidate should have a solid background in building scalable applications and

a passion for crafting high-quality software solutions. This role offers an opportunity to work on

challenging projects and collaborate with talented teams to deliver exceptional user

experiences.

Responsibilities:

• Develop new user-facing features using React.js and React Native.

• Build reusable components and front-end libraries for future use.

• Translate designs and wireframes into high-quality code.

• Optimize components for maximum performance across a vast array of web-capable

devices and browsers.

• Collaborate with cross-functional teams to define, design, and ship new features.

• Work closely with Product Managers and UI/UX Designers to implement versatile front-

end solutions.

• Advocate for best practices in front-end development and mentor junior developers.

Mandatory Qualifications:

• 8-10 years of professional experience in front-end development.

• Strong proficiency in JavaScript and TypeScript.

• Extensive experience with React.js and its core principles.

• Prior experience with React Native for mobile application development.

• Familiarity with RESTful APIs and modern authorization mechanisms.

• Experience with state management libraries such as Redux or MobX.

• Knowledge of modern authorization mechanisms, such as JSON Web Token.

• Familiarity with code versioning tools such as Git.

• Excellent problem-solving skills and ability to troubleshoot complex issues.

• Bachelor's degree in Computer Science or a related field (or equivalent work

experience).

Desired Qualifications:

• Experience with GraphQL.

• Japanese Language Proficiency :- Business level is Good to have

• Familiarity with server-side languages such as Node.js.

• Understanding of Agile methodologies.

• Contributions to open-source projects or active GitHub profile.

#engineer #developmentsupport #technologyplatformdiv

Languages:

English (Overall - 3 - Advanced)