Senior.NET Developer

At  NOVACARD   , we’re redefining how people use credit. We are the  first interest-free and no-annual-fee credit card in Mexico , designed to simplify personal finances and give users complete control - all from a mobile app. With NOVACARD, users can access up to  $200,000 MXN in credit , only pay when they use it, and manage everything digitally in under 5 minutes. Our mission is to empower people to make smarter financial decisions by offering flexibility, transparency, and the freedom they need to reach their goals. Simple finances, big goals.

About the Role

We're looking for a Senior .NET Developer to join our team working on enterprise CRM systems. You will be responsible for developing APIs, integrating with external and internal systems, designing databases, and optimizing system performance. This is a hands-on role with a strong focus on backend architecture, system scalability, and clean code.

Key Responsibilities

Develop and maintain APIs for integration with external and internal systems

Support and enhance existing CRM solutions

Design and optimize relational database structures

Analyze software performance and optimize both backend code and database queries

Contribute to software architecture and system design

What you will get

Opportunity to design scalable services and solutions

Remote flexibility and a collaborative, innovation-driven environment

Work with high-performing, cross-functional global teams

fluent Russian, English – B2 level or higher

Strong commercial experience with distributed systems in C# using ASP.NET Core

Deep understanding of distributed systems patterns

Experience with generic programming and writing reusable components

Solid SQL skills — ability to write complex queries

Hands-on experience integrating with external APIs (JSON-based)

Commercial experience with Docker

Solid grasp of SOLID principles , event delivery guarantees , and EDA (Event-Driven Architecture)

Understanding of basic information security principles (network security, web app security)

Experience in collaborative development using Git

Nice-to-Have Skills

Experience with Kubernetes (K8s) in production

Experience with CI / CD pipeline configuration using Ansible , Terraform , etc.

Exposure to DevOps practices and infrastructure as code

Top 3 Core Technical Strengths We Expect

Expertise in distributed system design patterns

Hands-on experience with generic programming in C#

Foundational understanding of information security principles