Lead AI-Driven SaaS Architect for ERP Platform

N-iX; Polska; Hybrid; PLN 320,000 - 520,000; Full time

Benefits offered by this job

Flexible working format

Remote option

Career growth & mentorship

Education reimbursement

Team events & knowledge sharing

Job summary

N-iX is seeking a Principal Software Architect to lead the architecture of a new ERP SaaS product for US public-sector clients. You will drive AI-assisted development, set coding standards, and ensure secure, auditable data flows across multi-tenant deployments.

Ideal candidates have extensive software architecture experience, deep .NET/C# skills, and a track record with SaaS or enterprise products. Remote-friendly with a flexible work format.

Qualifications

• AI coding proficiency and daily use of AI coding agents in real software work.
• 10+ years in software development with 3+ years as an architect.
• Strong experience with .NET and C#.
• Experience designing and running production systems on AWS.
• Experience designing SaaS or enterprise products: distributed systems, multi-tenancy, APIs and event-driven design.
• Experience with systems requiring data correctness (finance, billing, payment, or calculation-heavy).
• Able to learn a new domain quickly with domain experts.

Responsibilities

• Own the architecture of a new multi-tenant SaaS product from design to production.
• Collaborate with product managers and domain experts to model business rules.
• Make key technical decisions and document them for stakeholders.
• Drive prototypes and review the team's code.
• Define how the team works with AI coding agents (standards, testing, reviews).
• Design for data accuracy, security, and auditability in financial software.
• Plan integrations with client systems and third-party services.
• Present architecture and progress to client leadership.

Skills

AI agents

Software architecture

C# / .NET

AWS experience

SaaS design

Distributed systems

Multi-tenancy

APIs & events

Data integrity

Tech comm

Tools

.NET

C#

AWS

Job description

N-iX is seeking a Principal Software Architect to lead the architecture of a new ERP SaaS product for US public-sector clients. You will drive AI-assisted development, set coding standards, and ensure secure, auditable data flows across multi-tenant deployments.

Ideal candidates have extensive software architecture experience, deep .NET/C# skills, and a track record with SaaS or enterprise products. Remote-friendly with a flexible work format.