Back End Engineer

Job Description ■Responsibilities ・Server and infrastructure-side development for financial infrastructure (securities business platform, insurance business platform, credit business platform) or SaaS products combining generative AI with data utilization (in the investment, real estate, and business support sectors) ・Specification design, development, operation, and maintenance of the server and infrastructure components for applications deployed on the above platforms 【Technologies Used】 Amazon Web Services Google Cloud Microsoft Azure Terraform Docker Alpine Linux, Amazon Linux Go / Python MySQL (Aurora) Airflow Snowflake OpenAI API 【Services Used】 Google Workspace Slack Kibela 1Password GitHub Bitrise Backlog Datadog Opsgenie Working Hours Flextime System Job Requirements 【Required】 ・Experience in backend development for web applications ・Experience developing in statically typed languages such as Go ・Experience setting up basic infrastructure on cloud platforms such as AWS ・Experience implementing unit tests and end-to-end (E2E) tests 【Preferred】 *Meet any of the following ・Experience building cloud infrastructure using Infrastructure as Code (IaC) tools such as Terraform ・Experience developing and operating container-based applications ・Experience developing and operating web applications with a large user base ・Experience integrating features powered by generative AI into web services ・Experience tuning system performance, including databases and networks ・Knowledge of secure coding practices ・Conversational-level English proficiency necessary for communicating with engineering teams in Vietnam and others ・Experience developing financial services 【Ideal Applicants】 ・Strong communication skills to actively participate in discussions and propose technical or product ideas during development. ・Ability to think deeply about how to achieve high-impact results and translate those ideas into concrete action. ・A strong sense of ownership with grounded convictions, paired with a calm and analytical approach to problem-solving. ・An insatiable curiosity for learning and an eager drive to embrace and experiment with cutting-edge technologies. Japanese Level Business Level(JLPT Level 2 or N2) Chinese Level None Salary JPY - Japanese Yen JPY 4000K - JPY 9500K Other Salary Description ・Marriage leave & congratulatory gift ・Maternity leave & congratulatory gift ・Support for life events ・Housing allowance ・Dependent allowance ・Discount vouchers for babysitting services ・Childcare assistance for sick children ・Off-site support program ・Support for purchasing learning and productivity tools ・English conversation lessons available to interested employees ・Tuition assistance ・Promoting operational efficiency and value creation through company-wide utilization of Generative AI. *Specifically, this includes the construction and use of customized internal LLM environments (supporting major models such as ChatGPT, Gemini, Claude, and Llama), automated meeting minute summarization, and document organization. *In addition to utilizing AI code editors like "Cursor" and "GitHub Copilot," the company is also currently validating the coding AI agent "Devin." ・Full social insurance coverage ・Full reimbursement of commuting expenses ・Company-provided computer ・Partial subsidy for optional health checkups ・Employee stock ownership plan with a 50% matching contribution ・Stock options granted at 1 yen ・Visa support ・Smoking prohibited indoors Holidays ・Two-day weekend system (Saturdays, Sundays, and national holidays) ・Paid leave (Granted upon joining, with the number of days determined by the month of hire) ・Consecutive leave (Up to 5 consecutive days of leave, separate from annual paid leave) ・Year-end and New Year holidays (December 30–January 3) ・Special leave for family events ・Special leave Job Contract Period FULLTIME