Senior Software Engineer - Capital Markets

SMBC; New York (NY); Hybrid; USD 158,000 - 205,000; Full time

Job summary

SMBC Group in New York seeks a Senior Software Engineer specializing in backend and distributed systems to join our team. This full-stack role emphasizes backend development with C# and .NET, and a focus on scalable, resilient architectures.

You will own projects end-to-end, design and implement trade lifecycle processing components, and collaborate with cross-functional teams in a fast-paced, hybrid work environment.

Qualifications

• 7+ years of professional software development experience.
• Proven experience designing and building distributed systems.
• Strong understanding of messaging patterns, sagas, and transactional consistency.
• Experience with full-stack development (React, Angular, or similar is a plus).

Responsibilities

• Contribute to the design and development of complex software systems that support various aspects of trade lifecycle processing.
• Implement distributed computing solutions using messaging technologies.
• Build on top of C# MassTransit framework to ensure system reliability and consistency.
• Collaborate with cross-functional teams to deliver high-quality software in a fast-paced environment.
• Own projects end-to-end, from requirements gathering to deployment and monitoring.
• Contribute to system design reviews, code reviews, and mentoring junior engineers

Skills

Distributed systems design

Ownership-driven work

Problem-solving

Communication

Independent work

Tools

C#

.NET

MassTransit

RabbitMQ

Kafka

React

Microservices

Event-Driven Architecture

MongoDB

Git

CI/CD

Nomad

Angular

Job description

SMBC Group is a top-tier global financial group. Headquartered in Tokyo and with a 400-year history, SMBC Group offers a diverse range of financial services, including banking, leasing, securities, credit cards, and consumer finance. The Group has more than 130 offices and 80,000 employees worldwide in nearly 40 countries. Sumitomo Mitsui Financial Group, Inc. (SMFG) is the holding company of SMBC Group, which is one of the three largest banking groups in Japan. SMFG's shares trade on the Tokyo, Nagoya, and New York (NYSE: SMFG) stock exchanges.

In the Americas, SMBC Group has a presence in the US, Canada, Mexico, Brazil, Chile, Colombia, and Peru. Backed by the capital strength of SMBC Group and the value of its relationships in Asia, the Group offers a range of commercial and investment banking services to its corporate, institutional, and municipal clients. It connects a diverse client base to local markets and the organization's extensive global network. The Group's operating companies in the Americas include Sumitomo Mitsui Banking Corp. (SMBC), SMBC Nikko Securities America, Inc., SMBC Capital Markets, Inc., SMBC MANUBANK, JRI America, Inc., SMBC Leasing and Finance, Inc., Banco Sumitomo Mitsui Brasileiro S.A., and Sumitomo Mitsui Finance and Leasing Co., Ltd.

The anticipated salary range for this role is between $158,000.00 and $205,000.00. The specific salary offered to an applicant will be based on their individual qualifications, experiences, and an analysis of the current compensation paid in their geography and the market for similar roles at the time of hire. The role may also be eligible for an annual discretionary incentive award. In addition to cash compensation, SMBC offers a competitive portfolio of benefits to its employees.

Role Description

We are seeking a Senior Software Engineer with deep expertise in system and software design to join our team. This is a full-stack role with a strong emphasis on backend development using C# and .NET, and a focus on distributed systems architecture. The ideal candidate is a self-starter who thrives in ownership-driven environments and is passionate about building scalable, resilient systems.

Role Objectives

• Contribute to the design and development of complex software systems that support various aspects of trade lifecycle processing
• Implement distributed computing solutions using messaging technologies
• Build on top of C# MassTransit framework to ensure system reliability and consistency
• Collaborate with cross-functional teams to deliver high-quality software in a fast-paced environment
• Own projects end-to-end, from requirements gathering to deployment and monitoring
• Contribute to system design reviews, code reviews, and mentoring junior engineers

Tech Stack

• Languages & Frameworks: C#, .NET (Core and Framework), ASP.NET, React
• Messaging & Orchestration: C# MassTransit, RabbitMQ, Kafka
• Architecture: Microservices, Event-Driven Architecture, Distributed Systems
• Tools: Git, CI/CD pipelines, Nomad, MongoDB

Qualifications and Skills

• 7+ years of professional software development experience
• Proven experience designing and building distributed systems
• Strong understanding of messaging patterns, sagas, and transactional consistency
• Experience with full-stack development (React, Angular, or similar is a plus)
• Familiarity with financial derivatives or trade processing systems is a strong plus
• Excellent problem-solving and communication skills
• Ability to work independently and take ownership of projects

Additional Requirements

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. Prospective candidates will learn more about their specific hybrid work schedule during their interview process. Hybrid work may not be permitted for certain roles, including, for example, certain FINRA-registered roles for which in-office attendance for the entire workweek is required.

SMBC provides reasonable accommodations during candidacy for applicants with disabilities consistent with applicable federal, state, and local law. If you need a reasonable accommodation during the application process, please let us know at [e-mail].

EOE, including Disability/veterans