Senior .Net Application Developer

Remote, USA
Posted Jun 12, 2026
Full-time

Overview

BRMi is seeking a Senior .NET Developer to design, develop, and enhance complex software applications supporting a mission critical, time sensitive initiative focused on enhancing applications that integrate distributed applications with our customer's Core Banking platform. Serve as a senior technical contributor responsible for translating business and platform requirements into secure, scalable, and reliable solutions across the full software development lifecycle. Operate with minimal supervision while exercising strong technical judgment. Collaborate with Core Banking, testing, middleware, and platform teams to manage dependencies, mitigate risk, and meet aggressive delivery timelines.

 

The role requires strong expertise in the Microsoft stack, including C#, ASP.NET Core/MVC, and .NET frameworks, with hands-on experience building scalable applications, RESTful APIs, and microservices. Candidates must also have advanced knowledge of data structures, algorithms, CI/CD pipelines, Git-based version control, SQL Server integration, and testing/debugging practices to support high-performance, distributed systems. Preferred skills include familiarity with mainframe technologies (e.g., COBOL, CICS, z/OS), automation tools like Ansible, and experience developing applications in the financial services domain.

 

Benefits:• Comprehensive Medical, Dental, and Vision Insurance• Employer-Paid Life Insurance• Employer-Paid Short-Term and Long-Term Disability Insurance• 401(k) • Paid Time Off (PTO) that includes Vacation Leave, Sick Leave, and 11 Paid Holidays• Educational Assistance

 

Salary: 107k-133k

 

**Can be 100% remote in TX, VA, MD, DC, or FL**

 

Click here to learn about BRMi's culture.

 

Click here to see BRMi’s Glassdoor reviews

Responsibilities

Design, develop, and optimize high-quality software applications using various advanced programming languages and frameworks that meet business requirements

Collaborate with stakeholders and team members to gather and analyze requirements, translate requirements into technical specifications, propose innovative solutions, and ensure timely task completion

Write clean, scalable, and maintainable code that adheres to industry best practices and organizational coding standards

Implement data structures and algorithms efficiently, optimizing code for performance, scalability, and user experience

Identify, troubleshoot, and resolve errors in application function

Conduct team code reviews, provide constructive feedback, and learn from colleagues' expertise to maintain a high-quality codebase

Lead small efforts, while building strong working relationships with stakeholders, team members, and subject matter experts

Contribute to generating and adhering to application and software development policies, standards, and procedures

Continuously learn from individual and team experiences, fostering growth and improvement through collaboration and continuous feedback

Perfomr other duties as assigned

Qualifications

Bachelor’s degree in Computer Science, Information Systems, a related field, or the equivalent combination of education, training, or experience

5-7 years of experience in application or software development

Advanced proficiency in software development principles, methodologies (including Agile), pipelines, and version control systems (Git and GitHub for source code control)

Expertise in programming languages / standards / build tools including Java, XML, Open API, Maven, and ANT, with strong knowledge of modern frameworks and libraries

Deep understanding of web technologies and technical applications, capable of designing and implementing scalable solutions

Strong problem-solving, analytical, and troubleshooting skills, with the ability to address complex technical issues efficiently

Advanced written and verbal communication skills for articulating technical concepts to both technical and non-technical stakeholders

Experience using incident tracking, project management, and change control software tooling

Expertise in data structures, algorithms, and applying them in the design and build of applications for optimal performance and scalability

Demonstrated Experience with:

Application Development: Building scalable, secure applications (web, desktop, or mobile) using C#, ASP.NET, and the Microsoft technology stack

Testing & Debugging: Write and maintain unit and integration tests; identify, troubleshoot, and resolve software defects.

System Integration: Integrate data storage solutions (like SQL Server) and third-party APIs into existing application architectures.

ASP.NET Core, MVC, and the broader .NET ecosystem (Framework 4.x or .NET 6/8+).

Developing web services, microservices, RESTful APIs, and familiarity with common design patterns

REST principles and implementation of both client and server-side implementations

Continuous Integration & Delivery practices and tools (CI/CD pipelines)

Desired Qualifications

Mainframe programming experience, concepts, or work involving COBOL, S/390 assembler, CICS, COMMAREA programming, 3270 “Green Screens”, screen scraping and similar on IBM System z (z/OS) or System i (AS/400)

Prior experience developing scripts or applications to automate system/application deployment, configuration, or management (such as Ansible)

Experience developing applications serving the financial services industry

** BRMi will not sponsor applicants for work visas for this position.**

**This is a W2 opportunity only**

 

EOE/Minorities/Females/Vet/Disabled 

We are an equal opportunity employer that values diversity and commitment at all levels. All individuals, regardless of personal characteristics, are encouraged to apply. Employment policies and decisions on employment and promotion are based on merit, qualifications, performance, and business needs. The decisions and criteria governing the employment relationship with all employees are made in a nondiscriminatory manner, without regard to race, religion, color, national origin, sex, age, marital status, physical or mental disability, medical condition, veteran status, or any other factor determined to be unlawful by federal, state, or local statutes.

More Remote Jobs