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ION · 2 months ago

Lead C#/.NET Developer, Boston

Boston, MA

Full-time

Onsite

Lead/Staff

$160K/yr - $200K/yr

8+ years exp

ION Group is a leading provider of technology solutions for the financial services industry, and they are seeking a Lead C#/.NET Developer to design and build modern, service-oriented applications. In this hands-on role, the developer will collaborate with cross-functional teams to deliver innovative and scalable solutions that enhance global financial markets.

AccountingAsset ManagementFinanceFinancial ServicesSoftware

H1B Sponsor Likely

Responsibilities

Design and build high-performance, testable C#/.NET microservices leveraging the latest in cloud, containerization, and messaging technologies

Collaborate on software architecture and technical design decisions that shape scalable, enterprise-grade financial solutions

Contribute as part of an Agile/Scrum team, translating user stories into clean, maintainable code and delivering working software each sprint

Own your applications end-to-end — from development through deployment — and provide production support when needed to ensure reliability and performance

Qualification

C#/.NET developmentSQL skillsMicroservices architectureModern front-end technologiesSoftware design principlesAgile/Scrum experienceCapital markets knowledge

Required

8+ years of experience developing commercial-grade software applications

Proven hands-on expertise in C#/.NET development, with a deep understanding of modern C# features and best practices

Strong SQL skills with at least 3+ years of experience working with complex, multi-tier architectures

Solid foundation in software design principles, development methodologies, and building scalable, maintainable systems

Bachelor's degree in Computer Science or equivalent professional experience

Preferred

Experience with modern front-end web technologies (e.g., React, Angular, or Blazor) is a plus

Knowledge of — or interest in — capital markets and financial systems is highly desirable

Benefits

Discretionary bonus

Company

ION

Glassdoor3.3

ION Group provides solutions for electronic trading, position management, pricing, risk management, and downstream processing for clients.

Founded in 1998

New York, New York, USA

10001+ employees

https://iongroup.com

H1B Sponsorship

ION has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

Represents job field similar to this job

Trends of Total Sponsorships

2025 (2)

2024 (1)

2022 (2)

2021 (4)