Senior Software Engineer — .NET & React
Northern Trust· enterprise· Financial Services· Oct 15, 2026 · 13d ago
Chicago, IL
In office
Full-time
Senior
$115K–$195K
4+ years exp
Job description
About Northern Trust
As a global leader in innovative wealth management, asset servicing, asset management and banking services, Northern Trust (Nasdaq: NTRS) is proud to guide the world’s most successful individuals, families, corporations and institutions.
Since 1889, we have aligned our efforts with our three guiding Principles That Endure: Service, Expertise, and Integrity. Together, they reflect the three cornerstones of business conduct which we strive to instill in our employees, whom we call partners, and to provide to our clients and the communities we serve worldwide.
With more than 135 years of financial experience and over 24,000 partners, we serve the world’s most sophisticated clients using leading technology and exceptional service.
Role - Senior Software Engineer — .NET & React
We are looking for an accomplished Senior Software Engineer to design, develop, and modernize scalable enterprise applications. The role centers on API-first, cloud-native solutions built with .NET (C#) for backend services and React for frontend experiences, with a strong focus on security, performance, maintainability, and sound engineering practices.
You will partner with architects, product owners, and cross-functional teams to deliver reliable software that meets enterprise standards and regulatory obligations.
Primary Responsibilities
Backend (.NET) Design, build, and support RESTful APIs and backend services with .NET / ASP.NET Core (C#)
Use clean architecture practices, including SOLID , DDD , and CQRS where they add value
Implement effective data access with Entity Framework Core or comparable tools, minimizing unnecessary reliance on stored procedures
Build systems that are secure, resilient, auditable, and observable
Help shape architecture decisions and produce clear technical design documentation
Frontend (React) Develop modern, responsive interfaces with React and TypeScript
Create reusable component libraries that follow UI/UX and accessibility standards
Integrate APIs securely and efficiently, including authentication, authorization, and error handling
Improve frontend performance and the overall user experience
Develop unit and integration tests for frontend components
Engineering & Delivery Apply CI/CD best practices with tools such as GitHub Actions / Azure DevOps
Champion test-driven development and automated testing
Contribute to code reviews, mentoring, and knowledge sharing
Work with DevOps, QA, and platform teams to enable reliable deployments
Support production systems and assist with incident resolution when required
Required Qualifications:
Essential Technical Skills
At least 4 years of professional software engineering experience
Strong proficiency in C# and .NET / ASP.NET Core
Proven experience building micro-frontends (MFEs) with React and TypeScript
Strong knowledge of REST APIs , HTTP fundamentals, and API security
Experience with relational databases such as SQL Server
Experience with cloud platforms, preferably Azure , and containerization with Docker preferred.
Hands on experience with Agentic AI SDLC with spec-driven development a plus
Engineering Practices
Strong command of object-oriented design , clean code, and refactoring
Hands-on experience with unit testing , integration testing , and mocking frameworks
Familiarity with event-driven and microservices architectures; Kafka or other messaging technologies are a plus
Experience working in agile delivery environments such as Scrum or Kanban
Preferred Qualifications
Experience in financial services or another highly regulated industry
Knowledge of performance tuning , high-volume transaction processing, and distributed systems
Professional Capabilities
Strong analytical and problem-solving abilities
Clear, structured communication
Ability to collaborate effectively with senior stakeholders and cross-functional teams
A proactive approach with strong ownership and accountability
Technical Leadership:
The successful candidate will demonstrate strong technology leadership , shaping solution design and improving engineering practices across teams:
Advance modern engineering practices , including API-first design, cloud-native patterns, automation, and technical debt reduction
Guide and mentor engineers to strengthen capabilities and promote consistent practices across teams
Identify technology risks, scalability issues, and non-functional gaps early, then drive practical solutions
Balance immediate delivery needs with long-term platform health, maintainability, and operational resilience
Alignment with Northern Trust Principles:
Successful candidates are expected to reflect Northern Trust’s core principles and values in everyday engineering decisions and practices:
Service & Integrity First – Develop software responsibly, with security, accountability, client trust, and data protection at the forefront.
Strength in Collaboration – Partner across engineering, architecture, product, operations, and risk to deliver sustainable, well-designed solutions.
Expertise & Continuous Improvement – Apply deep technical expertise while continually improving systems through modernization, automation, and proven engineering practices.
Ownership & Accountability – Own solutions end to end, from design through production support, with consistent attention to reliability and quality.
Risk & Controls Mindset – Build solutions that satisfy regulatory, compliance, and audit requirements through appropriate controls, logging, and documentation.
Client-Focused Engineering – Make technology choices that support scalability, resilience, and lasting client outcomes rather than only short-term delivery.
Education and Experience:
Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience
Salary Range:
$114,500 - 194,700 USD
Salary range is a good faith estimate of base pay. Northern Trust provides a comprehensive benefits package including retirement benefits (401k and pension), health and welfare benefits (medical, dental, vision, spending accounts and disability), paid time off, parental and caregiver leave, life & accident insurance, and other voluntary and well-being benefits. Northern Trust also provides a discretionary bonus program that may include an equity component.
Work Authorization
Applicants must be authorized to work in the U.S. without the need for employment-based visa sponsorship now or in the future. Northern Trust will not sponsor applicants for U.S. work visa status for this opportunity (no sponsorship is available for H-1B, L-1, TN, O-1, E-3, H-1B1, F-1, J-1, OPT, CPT or any other employment-based visa).
Working with Us
As a Northern Trust partner, you will be part of a flexible and collaborative work culture, which has a strong history of financial strength and stability. Movement within the organization is encouraged, senior leaders are accessible, and you can take pride in working for a company committed to an inclusive workplace and assisting the communities we serve.
Philanthropy is deeply rooted in Northern Trust’s history and is an essential element of our culture. Employees around the world give their time and talent to work for the greater good of their communities.
Reasonable Accommodation
Northern Trust is committed to working with and providing adjustments to individuals with health conditions and disabilities. If you need a reasonable accommodation for any part of the employment process, please email our HR Service Center at MyHRHelp ntrs.com , or alternatively you can discuss your individual requirements with the recruiter you are working with.
Application prep
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Keywords to mirror
reactapitypescriptaccessibilityci/cdazurerestsqldockeraiagilescrum
- Platform
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- Effort
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Benefits
Benefits detected in the listing.
Dental
Vision
401k
Paid Time Off