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Sumitomo Group Logo

Senior Full-Stack Software Engineer

Sumitomo Group

$160,000 - $205,000
Dec 20, 2025
Jersey City, NJ, US
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SMBC Group is seeking a Senior Full-Stack Software Engineer to lead the design, development, and maintenance of enterprise-grade applications and automation systems, aiming to deliver scalable, user-friendly, and high-performance solutions across diverse industries.

Requirements

  • Proficiency in multiple programming languages: Python, Java, C-Sharp, JavaScript, HTML/CSS.
  • Strong experience with frameworks and tools: React, Spring Boot, Django, Flask, Docker, AWS.
  • Solid understanding of database systems: Oracle, MySQL, PostgreSQL, SQL Server, MongoDB.
  • Experience with CI/CD pipelines, Agile methodologies, and microservices architecture.
  • Experience with automation tools like Power Automate and BI tools like Power BI.
  • Familiarity with legacy systems and modernization strategies.
  • Knowledge of regulatory reporting and banking operations.

Responsibilities

  • Design and develop robust backend systems, RESTful APIs, and front-end interfaces using technologies such as Python, Java, C-Sharp, React, and SQL.
  • Lead end-to-end software development lifecycle: requirements gathering, architecture design, coding, testing, deployment, and documentation.
  • Build and optimize ETL pipelines and data warehouses for regulatory reporting and business intelligence.
  • Develop automation tools to streamline business operations and reduce manual workloads.
  • Collaborate with cross-functional teams such as Global Market vertical function, Risk management department, Product Control, and Tokyo head office to define and deliver solutions.
  • Conduct code reviews, mentor junior developers, and contribute to continuous improvement of development practices.
  • Support and troubleshoot production systems and provide technical support to users.

Other

  • 5+ years of professional experience in software engineering, with a focus on full-stack development.
  • Fluency in Japanese (reading, writing, and speaking) is required to communicate with relevant head office functions.
  • Excellent problem-solving skills and attention to detail.
  • Strong communication and project management abilities.
  • Experience working in financial services or regulated industries is a plus.
  • Prior experience in mentoring and leading development teams.
  • SMBC’s employees participate in a Hybrid workforce model that provides employees with an opportunity to work from home, as well as, from an SMBC office.
  • SMBC requires that employees live within a reasonable commuting distance of their office location.