Secure .NET Backend & API Engineer

EnIn Systems; Wilmington (DE); On-site; USD 120,000 - 160,000; Full time

Job summary

EnIn Systems is seeking an experienced .NET Developer to design, build, and maintain enterprise‑grade web applications within a regulated banking environment. You will provide robust backend services using .NET and support AngularJS front‑end architecture to enable seamless cross‑stack collaboration.

The role emphasizes secure authentication, API design, and maintaining high‑security standards for banking applications while delivering scalable, performance‑driven solutions.

Qualifications

• Strong hands‑on experience with .NET backend development and API design.
• Knowledge of OAuth, SAML, OpenID Connect, and JWT.
• Experience securing applications and APIs in enterprise environments.
• Familiarity with AngularJS front‑end integration with backend services.
• Understanding of banking industry security standards and best practices.

Responsibilities

• Design, develop, and maintain backend services, APIs, and integrations using .NET frameworks.
• Support AngularJS front‑end applications and ensure alignment with backend services.
• Implement secure authentication and authorization across web apps and APIs.
• Design and maintain secure API endpoints in line with industry standards.
• Collaborate with cross‑functional teams to gather requirements and deliver scalable solutions.
• Monitor performance against KPIs and service‑level objectives.

Skills

NET backend development

AngularJS front-end

Authentication technologies

Application security

Performance KPIs

Problem solving

Communication skills

Banking/regulatory experience

Job description

EnIn Systems is seeking an experienced .NET Developer to design, build, and maintain enterprise‑grade web applications within a regulated banking environment. You will provide robust backend services using .NET and support AngularJS front‑end architecture to enable seamless cross‑stack collaboration.

The role emphasizes secure authentication, API design, and maintaining high‑security standards for banking applications while delivering scalable, performance‑driven solutions.