.NET Software Architect

The company and our mission:

Zartis is a global AI transformation and technology consulting partner where talented engineers and technologists work on cutting edge innovation. We partner with ambitious organizations to design, build, and scale technology solutions that deliver real impact.

Our teams bring deep expertise in AI driven platforms, secure API architectures, and cloud native engineering. You will work on meaningful projects that accelerate the adoption of advanced technologies, from strategy and discovery through to full product delivery, helping turn complex challenges into measurable outcomes.

With engineering hubs across EMEA and LATAM, and long term partnerships in financial services, healthcare and life sciences, and energy and climate, we offer opportunities to work on projects that truly matter. Here, you will not just build technology, you will drive business impact and grow your career alongside industry leaders.

We are looking for a .NET Software Architect to work on a project in the Fintech Industry

The project:

Our teammates are talented people that come from a variety of backgrounds. We’re committed to building an inclusive culture based on trust and innovation.

You will be part of a distributed team developing new technologies to solve real business problems for a global private equity firm managing 60+ portfolio companies, on a major platform rebuild - modernizing a core banking/reconciliation platform from a tightly-coupled .NET monolith into an MVC architecture (ASP.NET Core, Razor Pages, Telerik), migrating several hundred business rules onto a test-driven validation layer, and integrating with 15–20 remote databases on Azure.

We are looking for a Principal-calibre engineer with strong, current C#/.NET expertise, real experience taking a legacy monolith through a modern re-architecture, and the stakeholder-management maturity to communicate confidently and proactively with a demanding client. Hands-on fluency with AI-augmented, agentic development workflows (e.g. Claude Code) is expected, not just tool familiarity.

What you will do:

Own end-to-end technical delivery - the ASP.NET Core/Razor Pages front end with Telerik components, and the underlying C#/MS SQL Server back end - within the core delivery team.
Lead the discovery, characterisation, testing and migration of business rules, currently split across stored procedures and application code, onto a reliable, test-driven validation layer as part of the platform rebuild.
Help define and drive the transition from a tightly-coupled monolith to a modern MVC architecture, including hardening the existing API layer toward a full REST implementation.
Design and build resilient integrations across 15–20 remote databases, working within the Azure App Configuration and Key Vault infrastructure.
Use Claude Code, GitHub Copilot and Zartis' Zcora instruction framework to structure and accelerate AI-assisted delivery with appropriate human review and validation.
Act as the primary technical point of contact for client stakeholders, bringing Principal-level communication, expectation-setting and delivery ownership.
Drive quality through to the shift-left QA effort (Playwright automation, SonarQube quality gates, Three Amigos sessions) to reduce regression cycles.

What you will bring:

Strong, current C#/.NET expertise: Azure, ASP.NET Core/MVC, Razor Pages, Telerik UI components and MS SQL Server.
Proven experience with legacy-to-modern migrations and monolith-to-MVC architecture, ideally on tightly-coupled, full-stack codebases.
A track record of strong stakeholder management and clear, proactive communication in senior or principal engineering roles.

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