Senior .NET Developer (English, Lending)

Top 3 reasons to join us
Dynamic and international working environment
Hybrid working model and good work-life balance
Attractive salary and benefits
Job description
About Us
At Topicus, we believe IT should serve society. From healthcare and education to finance, our solutions empower millions of people daily by turning complex challenges into user-friendly platforms. We don't just build software; we increase self-reliance and reduce vulnerability for citizens worldwide.
With a team of over 1,800+ "Topicans" across Southeast Asia (Vietnam & Thailand) and Europe (the Netherlands, Romania, Portugal, and Iceland), we are constantly expanding our horizons. Our ambition reaches far beyond Europe, driven by a shared mission to make a meaningful difference.
About the Role
We are seeking a Senior .NET Developer to join our international team and contribute to the quality and reliability of our Akkuro Lending platform. Successful candidates will work closely with developers, product owners, and fellow testers across Vietnam and the Netherlands to ensure the delivery of high-quality software. This role offers the opportunity to be part of a collaborative, international environment while playing a key role in maintaining and improving the quality of our lending platform.
Key Responsibilities
Build and enhance backend services that enable financial institutions to configure portal content across lending, savings, and investment products.
Design clear, scalable APIs for the Angular frontend, ensuring fast and efficient feature delivery.
Develop with ASP.NET Core and MongoDB, following clean architecture and maintainable coding practices.
Support and optimize content configuration for themes, translations, questionnaires, and content pages.
Expand Akkuro Studio to onboard new financial products, allowing institutions to launch portal experiences with minimal engineering involvement.
Deliver reliable solutions through CI/CD pipelines and containerized infrastructure.
Frameworks and Tools Used
Backend: ASP.NET Core, C#, REST API design
Data: MongoDB
Infrastructure: Docker, Kubernetes/OpenShift, CI/CD via GitHub and Jenkins
Quality: SonarQube, OWASP, automated testing as standard practice
Your skills and experience
Bachelor's degree in Computer Science, Information Technology, or a related field.
Strong English communication skills, both written and verbal.
Minimum of 5 years of experience in .NET development.
Strong expertise in ASP.NET Core, RESTful APIs, and backend architecture.
Experience building scalable solutions in multi-tenant environments.
Hands-on experience with MongoDB, data modeling, and performance optimization.
Ability to define API standards and drive backend best practices.
Experience with CI/CD pipelines, containerized deployments, and cloud-native applications.
Nice-to-have
Experience with Kafka, event-driven architectures, and Backend-for-Frontend (BFF) patterns.
Experience implementing feature flags in multi-tenant environments.
Familiarity with localization and internationalization (i18n) practices.
Knowledge of Angular or TypeScript for full-stack collaboration.
Experience in the financial services domain.
Why you'll love working here
Fixed 13th-month salary and performance bonus.
Full salary during probation and full social insurance coverage.
Hybrid working model with a good work-life balance.
Premium healthcare (including annual health check-up).
16 days of annual leave per year.
5 paid sick leave days.
Dynamic and international English-speaking working environment.
Regular gatherings (happy hours, bimonthly dinners, social events, etc.).
Annual company trip.
Fully stocked pantry with coffee and snacks.
Budget for team activities.
Supportive and diverse work environment that promotes continuous learning.
Opportunity for traveling and training in Europe.
Join Topicus Vietnam as a Senior .NET Developer and make an impact in the financial services domain!