[Hiring] Senior .NET Backend Developer @nexttech

Role Description

We are looking for a Senior .NET Backend Developer to design, build and evolve secure, scalable and reusable backend services for business-critical enterprise applications. This role is ideal for an experienced, hands-on engineer with strong expertise in C# and .NET, enterprise API design, system integration and cloud-native delivery.

Main tech: #CSharp #NET #ASPNETCore #RESTAPIs #Oracle #Kafka #Docker #OpenShift #Kubernetes #Microservices

Key Responsibilities

• Backend Development & API Design
  • Design, develop and maintain backend applications and services using C#, .NET and ASP.NET Core.
  • Translate business and technical requirements into clear, maintainable and testable solutions.
  • Design and implement REST APIs with clear, versioned contracts using OpenAPI / Swagger.
  • Develop reusable integration capabilities and avoid application-specific point-to-point solutions.
  • Create and maintain technical documentation, API specifications and implementation notes.
• Enterprise Integration & Data
  • Design synchronous, asynchronous and event-driven interaction patterns based on solution needs.
  • Integrate applications using Apache Kafka or equivalent enterprise messaging platforms.
  • Develop and optimize database interactions with Oracle and other relational databases.
  • Ensure backward compatibility, idempotency, transactional consistency and resilient error handling.
  • Identify and resolve database, integration and application-performance issues.
• Architecture, Security & Quality
  • Apply appropriate architectural patterns, including Clean Architecture, Domain-Driven Design and event-driven architecture.
  • Implement authentication and authorization using OAuth 2.0, JWT and enterprise access-management solutions.
  • Build automated unit, component and integration tests using xUnit, NUnit, Moq or equivalent frameworks.
  • Participate in code reviews and contribute to clean-code, security, performance and engineering-quality standards.
  • Address scalability, availability, latency, resiliency, auditability and maintainability requirements.
• Cloud-Native Delivery & Observability
  • Containerize applications and support delivery through Docker and Kubernetes / OpenShift platforms.
  • Contribute to CI/CD pipelines and build automation using GitHub Actions or equivalent tooling.
  • Implement structured logging, metrics and distributed tracing aligned with organizational standards.
  • Troubleshoot deployment, configuration and runtime issues in non-production environments.
  • Collaborate closely with solution architects, technical leads, business analysts, QA engineers and other development teams.

Qualifications

• Minimum 7 years of professional software development experience in enterprise environments.
• Minimum 5 years of hands-on backend development experience with C# and .NET / .NET Core.
• Minimum 3 years of hands-on experience with ASP.NET Core.
• Strong experience designing and implementing REST APIs and system-to-system integrations.
• Hands-on experience with Oracle, SQL and relational database technologies.
• Practical experience with Apache Kafka or other messaging and event-driven platforms.
• Strong understanding of object-oriented programming, SOLID principles, design patterns and clean-code practices.
• Experience with Entity Framework Core or equivalent persistence technologies.
• Hands-on experience with Docker and Kubernetes and/or OpenShift.
• Strong automated-testing skills using xUnit, NUnit, Moq or equivalent tools.
• Working knowledge of OAuth 2.0, JWT and enterprise identity and access-management integration.
• Experience applying Clean Architecture, Domain-Driven Design and event-driven architecture.
• Good understanding of distributed-system failure scenarios, resiliency and performance considerations.
• Experience working in Agile, cross-team and multi-system delivery environments.
• Strong analytical thinking, autonomy, ownership and delivery discipline.
• Ability to communicate technical decisions clearly and challenge unclear or inefficient solutions.

Nice to Have

• Experience in banking, financial services or another highly regulated industry.
• Experience with payments, lending, customer-data, core systems or enterprise integration platforms.
• Familiarity with OpenTelemetry and observability tools such as Elastic, Prometheus or Grafana.
• Experience with caching strategies, cache invalidation and performance optimization.
• Familiarity with enterprise security, auditability, data-protection and controlled-delivery requirements.
• Practical experience with Microsoft Copilot or another enterprise-approved generative AI assistant.
• Understanding of confidentiality, data-classification and safe-use requirements when working with AI tools.

Our Culture: What Sets Us Apart

• “An organization that always listens to feedback from employees, continuously improving based on input and suggestions.”
• “A culture that encourages work-life balance and independence at work.”
• “A place where genuine communication and respect thrive between all levels of the company.”
• “An organization that’s close to people, where kindness and support are constants.”
• “A culture that makes new members feel welcomed, involved in day-to-day decisions, and valued for their unique skill set from day one.”
• “A team that promotes psychological safety and the confidence to speak your mind without fear.”

Join Us and Bring Your Full Self to Work

We promise an environment where respect, openness, and recognition are at the core of your experience. Here, you’ll find a collaborative and responsible team that values fun, autonomy, and flexibility. You’ll face challenges that allow you to grow, supported every step of the way by peers and leadership alike.

What We Look for in You

If you possess strong technical expertise, a product mindset, a collaborative spirit, and a proactive attitude, along with resilience, flexibility, and a desire to support your teammates, you’ll fit right in at Nexttech.

Come be part of a place where your effort is valued, your ideas are heard, and your growth is our priority. 🚀