Senior Back-End Developer - .Net/ C#

Aequilibrium Software

10d • $120,000 - $150,000 • Remote

About The Position

We're looking for a Senior Back-End Developer with deep expertise in the Microsoft .NET ecosystem. When you join Aequilibrium, you'll be part of a fun and agile technology professional services company driving innovation in financial services. We're seeking a consultative, client-facing developer who can design, build, integrate, and extend enterprise applications using modern C#, .NET, Azure, and microservices technologies. You'll work closely with clients, product teams, architects, and fellow engineers to deliver scalable, secure, and high-performance enterprise solutions.

Requirements

• 10+ years of professional software development experience.
• Strong experience with: C# .NET Core / .NET 6+
• ASP.NET Core
• Entity Framework
• Strong experience designing and building RESTful APIs and microservices.
• Experience with SOAP and REST integrations, JSON, XML, and modern API design practices.
• Strong understanding of distributed systems and event-driven architectures.
• Experience with messaging technologies (Kafka, RabbitMQ, Azure Service Bus, or similar).
• Experience writing automated unit and integration tests using xUnit, NUnit, or MSTest.
• Strong knowledge of Git and modern source control workflows.
• Experience developing large-scale, enterprise-grade applications.
• Strong hands-on experience with Microsoft Azure, including cloud-native services.
• Experience with Docker and Kubernetes.
• Strong understanding of application security, authentication, authorization, OAuth2, OpenID Connect, and secure API design.
• Experience with CI/CD pipelines and DevOps practices.
• Experience working in financial services, fintech, banking, or other enterprise environments.
• Bachelor's degree in Computer Science, Software Engineering, or equivalent practical experience.
• Experience working in Agile teams using Scrum and/or Kanban.
• Knowledge of Test-Driven Development (TDD) and Continuous Integration practices.

Nice To Haves

• Experience with Azure Functions, Azure Service Bus, Azure API Management, Azure Key Vault, Cosmos DB, or Event Hubs.
• Experience with event streaming technologies such as Kafka.
• Experience with OpenShift.
• Experience leading technical initiatives or mentoring developers.
• Experience with high-volume transactional systems or payment platforms.

Responsibilities

• Design, build, integrate, and extend enterprise applications using modern C#, .NET, Azure, and microservices technologies.
• Work closely with clients, product teams, architects, and fellow engineers to deliver scalable, secure, and high-performance enterprise solutions.
• Design and develop enterprise-grade applications using C# and .NET.
• Build scalable backend services using ASP.NET Core, Entity Framework, and RESTful APIs.
• Design microservices and distributed systems.
• Manage multiple projects and priorities while maintaining high-quality deliverables.
• Translate business requirements into scalable technical solutions and architecture.
• Collaborate effectively with Product Managers, Designers, Architects, and Engineers.
• Lead technical discussions with stakeholders.
• Write clean, maintainable, testable code and mentor other developers.
• Participate in peer code reviews and promote engineering best practices.
• Embrace Agile principles and contribute positively to team success.

Benefits

• Competitive compensation
• Remote-first workplace
• Medical, dental, and extended health benefits (premiums fully covered by the company)
• Employee bonus programs
• Team-bonding events

What This Job Offers

• Job Type: Full-time
• Career Level: Senior