About this role.
Zartis is seeking a Principal-calibre .NET Software Architect to lead a remote modernization project for a fintech/private-equity client. The role owns technical delivery across an ASP.NET Core/Razor Pages and Telerik front end, plus C# and SQL Server services supporting a core banking and reconciliation platform. Key work includes decomposing a tightly coupled monolith, migrating business rules into a test-driven validation layer, and building secure Azure-based integrations with 15–20 remote databases. The architect will serve as the main technical contact for demanding client stakeholders while advancing quality practices such as Playwright automation, SonarQube gates, and collaborative Three Amigos sessions. Success requires current .NET and Azure expertise, prior legacy modernization leadership, financial-services awareness, and practical use of AI-assisted engineering workflows.
Role DNA
A quick view of the complexity, pace, ownership and collaboration implied by the job description.
Job Complexity
5/5Pace & Pressure
5/5Autonomy Level
5/5Communication Load
5/5Salary analysis
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Core skills
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Sample interview questions
I would begin with discovery and characterization tests to establish current behavior, particularly around business-critical reconciliation workflows. I would identify seams for incremental extraction, prioritize high-risk dependencies, and use a strangler-style migration where practical. Each transition would include observability, rollback planning, automated regression coverage, and stakeholder validation before broader rollout.
I would inventory and classify rules by domain, risk, ownership, and data dependencies, then capture existing behavior through characterization tests and representative production-like datasets. I would implement rules as explicit, version-controlled domain validation components with unit and integration tests, while retaining traceability to the original stored procedures or code paths. Parallel-run comparisons and exception reporting would help validate results before retiring legacy logic.
I would define clear integration contracts, ownership boundaries, retry and timeout policies, idempotency requirements, and monitoring standards for every connection. Credentials and configuration should be centrally managed through Azure Key Vault and App Configuration, with least-privilege access, rotation procedures, and environment separation. I would also account for network reliability, schema drift, data consistency, rate limits, and auditable error handling appropriate for financial systems.
I use AI tools to accelerate analysis, scaffolding, test generation, documentation, and refactoring, but I treat every output as untrusted draft material requiring engineering review. I avoid exposing sensitive data or credentials, follow approved data-handling policies, validate generated code through tests and security checks, and ensure architectural decisions remain human-owned. The workflow should be transparent, reproducible, and compatible with code review and audit requirements.
I would establish a predictable communication cadence with concise updates on progress, risks, decisions, dependencies, and next steps. I would translate technical trade-offs into business impact, bring options with clear recommendations, and surface uncertainty early rather than allowing surprises. Internally, I would maintain documented decisions and align the delivery team around agreed priorities, acceptance criteria, and quality standards.
.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.
Hands-on fluency with AI-augmented, agentic engineering workflows (Claude Code, GitHub Copilot or similar) – able to speak concretely about your own approach, not just tool familiarity.
Comfort operating in a regulated financial-services or private-equity environment.
Azure cloud infrastructure experience, particularly App Configuration and Key Vault.
Nice to have:
Exposure to shift-left QA practices – i.e. Playwright, SonarQube.
Experience with GitHub, including migrations away from Azure DevOps.
Prior experience in private equity, fund administration, or wider financial-services technology.
What we offer:
100% Remote Work
WFH allowance: Monthly payment as financial support for remote working.
Career Growth: We have established a career development program accessible for all employees with a 360º feedback that will help us to guide you in your career progression.
Training: For Tech training at Zartis, you have time allocated during the week at your disposal. You can request from a variety of options, such as online courses (from Pluralsight and Educative.io, for example), English classes, books, conferences, and events.
Mentoring Program: You can become a mentor in Zartis or you can receive mentorship, or both.
Zartis Wellbeing Hub (Kara Connect): A platform that provides sessions with a range of specialists, including mental health professionals, nutritionists, physiotherapists, fitness coaches, and webinars with such professionals as well.
Multicultural working environment: We organize tech events, webinars, parties, and activities to do online team-building games and contests.
Annual salary information is not provided for this position. Explore salary ranges for similar roles in our Salary Directory ›
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