Student Part-Time Engineer (Corporate/Web Engineer)
Siiibo証券 (Siiibo Securities) is a Japanese registered securities company (Type I Financial Instruments Business Operator) that enables individual and corporate investors to invest in privately placed corporate bonds issued by mid-to-late stage startups and newly listed companies. It offers yen-denominated fixed-rate interest income opportunities, secondary market trading, and a diversified, low-fee investment platform.
Funding
Investors
Projects
About Siiibo証券
Siiibo証券 operates a securities platform focused on startup investment through corporate bonds (社債), particularly small-lot private placement bonds (少人数私募社債) limited to a maximum of 49 investors per issue. The company primarily serves mid-to-late stage startups and newly listed companies seeking financing beyond their early growth phase, offering bond terms with yields ranging roughly 2-8% and maturities of 1-4 years, with typical investment amounts of 50-3,000,000 yen. Investors can browse company IR information, submit investment preferences, purchase bonds with no purchase fees, monitor issuers during the holding period, and receive interest and principal repayments at maturity. Unlike social lending, these bonds are classified as first-class securities, allowing trading on a secondary market for liquidity before maturity. As a registered Type I Financial Instruments Business Operator, the company maintains segregated asset management, is covered by the Investor Protection Fund (up to 10 million yen), and has implemented security measures including passkey authentication for login.
Skills
About the Role
As a student part-time engineer, you'll get to choose the areas you're most interested in, or work across several, depending on your preferences. On the corporate engineering side, you'll build internal apps and bots to improve business operations using tools like GAS, Slack, Trello, and various AI tools, handle helpdesk requests such as system inquiries and PC troubleshooting, and research and select SaaS tools for adoption. On the web engineering side, you'll code and refactor company websites, design UI/UX for web apps using Figma, make minor updates to existing web app and server features, refactor implementations, and write documentation covering configuration, environment setup, and internal manuals. You'll work with a modern stack including JavaScript, TypeScript, Elm, Elixir, Phoenix, GraphQL, and AWS, and collaborate asynchronously with the team through Slack and GitHub Pull Requests, learning through hands-on code review from experienced engineers.
Requirements
- Enjoy IT technology and programming
- Enjoy simplifying and automating repetitive tasks
- Have programming experience through research, coursework, or self-study
- Attach a resume or describe your background when applying (not required if contacting via LabBase)
Responsibilities
- Build internal improvement apps and bots using GAS, Slack, Trello, and AI tools
- Handle helpdesk requests including system inquiries and PC troubleshooting
- Research and select SaaS tools for adoption
- Code and refactor company websites
- Design UI/UX for web applications using Figma
- Make minor updates to existing web app and server features
- Refactor web app and server implementations
- Write documentation for configuration, environment setup, and internal manuals
Benefits
- Commuting expenses reimbursed (up to 35,000 yen per month)
- PC lent for in-office work
- Reference books available for loan