Senior Rust Developer

Salary

8,000,000 - 14,000,000 JPY JPY 

Salary depends on work experience, skills, and abilities

Language requirements

• Japanese: Not Required

• English: conversational

Benefits

• Commutation expenses covered

• Two full remote days a week (Wednesdays and Fridays)

• Horizontal communication;

• Health insurance, employment insurance, workers accident insurance, pension

• Flexible Working Hours (with core hours from 10:00 to 15:00)

• Work in an Japanese company that is also international and multicultural;

• Grown within the company, you will be the lead Rust developer within HeartCore, this will allow you to evolve when the team grows.

• Lead the implementation of a new global platform.

• Work directly on shaping the product vision, strategy, and prioritization.

• Support for attending training courses required for work (all expenses covered by the company at the discretion of the department head)

• Free coffee, tea, spring water, hot chocolate and Japanese soups at the company everyday.

Responsibilities

• Be directly involved in overseeing the main platform development and lead it's implementation.

• Work across the full product tech life cycle from discovery to delivery.

• Build internal and external tools to support HeartCore global expansion.

• Build a web platform and integrating with external APIs.

• Innovate with Rust breaking boundaries.

• You work very closely with the CTO and Designers, often interact with our internal sales teams and closely with our board members.

• Conduct code reviews in coordination with other team members and help maintain a high standard of quality across the codebase

• Lead, mentor, and learn from other engineers on our growing team

• Take features from concept to fully-fledged product

Requirements

• Prior experience with programming in Rust

• Deep familiarity with Rust abstractions, memory management, and concurrency
• Japanese NOT required (Please apply even if you don't speak any Japanese)

Nice to haves (not required)

• English Business level speaker

• Minimum 5 years of relevant work experience preferred (time is not important, knowledge is)

• Experience working with SQL databases

• Experience building complex modern web applications

• Familiarity with functional or component testing of services

• Experience building REST and Websocket API clients

• Basic understanding of how to sign an encrypted request

• Ideally, experience building clients that consume streaming data

• Deep understanding of the full web technology stack (e.g. HTTP, cookies, asset loading, caching, REST, etc)

• Knowledge of Ruby or Python on top of Rust is a strong plus.
• Japanese is not required (So apply even if you don't speak Japanese)

Personal Traits

• Team player with strong communication skills and capable of building good relationships with people

• Action-oriented with reasonable thoughts and common sense

• Open to other cultures

• Humble to acknowledge that there is always new knowledge to be acquired and eager to learn it

• Positive attitude and the ability to take feedback and use it constructively

• Self-motivated and able to work with minimal supervision

• Good problem-solving and decision-making skills

• Ability to manage time and prioritize tasks

• Capable of having a helicopter view to understand product and tech strategies

• Experience working with global products

What we value

We aim to bring digital products with the quality of Japan to the global market.

A culture of optimism, empathy, happiness, and results. 🙂 

Focusing on transparency, ownership, improving consistently, and communication.

Office Location

Shirakiji Bldg. 3F, 1-2-33, Higashi-gotanda, Shinagawa-ku, Tokyo, 141-0022 Japan 🇯🇵

Typical Workday

Working hours are 9:00-18:00, with a 1-hour lunch break. (This is just a reference since Flex Time exists)

Holidays

• Saturdays, Sundays, company holidays and national holidays

• Ten paid holidays per year, available after the first 6 months (can be rolled over to the following year for a maximum of 20 total days). Every year at the company gives an extra day of paid holiday per year until a maximum of 20.

• Five extra paid holidays per year available as soon as you joint the company.

• Extra Annual holidays: New Year’s period (ex. Dec 30-Jan 3), marriage leave, condolence leave, natural disaster leave, maternity leave, sabbatical (after 3 consecutive years with the company).

Over Time Work

Company Average of 2 to 3 hours per month. (maximum allowed is 45 hrs/month)

Department/Team you will be joining

Product Strategy Department

Career Trajectory

Successful candidates are self-motivated but communicative with teammates, organized, and eager to both apply their skills and develop new ones. This is an excellent opportunity for a creative-minded individual to develop their skills and engage audiences with content that will inspire positive change in society.

Screening Process

0 - Application screening 

1 - First interview (HR head, Department head)

2 - Second interview [Tech Skill] (HR head, Department head) 

3 - Offer (HR head / department head)