Log inSign up free
  • Home
  • Profile
  • Jobs
    • Applications
    • Career
    • Resume
    • Cover letters
  • Content
    • Posts
    • Media
  • Messages
  • Analytics
    • Overview
    • Pages
  • Portfolio
  • More tools
    • Hiring
  • Settings
All jobs
DTDeutsche Telekom IT Solutions logo

Deutsche Telekom IT Solutions

Péxs

Lead .NET Architect (System Modernization & AI Integration).

FULL TIMESENIOR LEVELDATA & ML

The Project: Internal Support Tools Evolution  

You are joining an initiative focused on the evolution, modernization of the Internal Application Landscape. This project involves the strategic transition of well-known cloud services and legacy .NET architectures into a next-generation, AI-augmented, and cloud-native software landscape. 

Our goal is not simply to "maintain" the existing system, but to proactively transform it—ensuring sovereignty, high-performance scalability, and seamless handover readiness through disciplined engineering. 

Our Engineering Philosophy 

We operate at the intersection of Legacy Stability and Modern Innovation. Our approach is defined by: 

  • AI-Augmented Engineering: We utilize advanced AI development environments (such as Cursor, Windsurf, and Claude Code) and cutting-edge model families to accelerate code comprehension, refactoring, and documentation. 

  • Disciplined SDLC Patterns: We move beyond traditional development by implementing repeatable, evidence-based SDLC patterns. Every change is backed by structured engineering evidence and rigorous automated testing. 

  • The "Strangler Fig" Modernization: We prioritize risk-mitigated evolution, using sophisticated patterns to wrap, refactor, and eventually replace legacy components. 

  • High-Seniority Autonomy: We operate as a lean, highly autonomous unit. We value "technical detectives" who can navigate ambiguity and perform deep reverse engineering. 

Mission

To spearhead the technical evolution of our core enterprise ecosystem through a sophisticated Modernization Strategy. You will design the architectural patterns required to transition from legacy monolithic patterns to modern, scalable, AI-integrated architectures, ensuring zero downtime and seamless business continuity. 

Role Focus

This is a high-impact role at the intersection of legacy stability and modern innovation. You will lead the "Strangler Fig" approach—identifying components to wrap, refactor, or replace—while designing the architectural patterns for AI/LLM orchestration (e.g., API-driven AI orchestration, vector database integration) within the ecosystem. 

Key Responsibilities 

  • Architectural Strategy & Roadmap: Design the long-term technical roadmap for the transition from legacy patterns to modern, scalable architectures (Microservices, Event-Driven, Cloud-Native). 

  • Modernization Oversight: Lead the technical "archeology" of the legacy codebase, extracting complex, undocumented business logic and transforming it into clean, testable code. 

  • AI Integration Architecture: Design the patterns required to integrate AI/LLM capabilities (e.g., agentic workflows, RAG pipelines) into the existing and future ecosystem. 

  • Technical Decision Governance: Act as the final authority on architectural patterns, technology stacks, and coding standards to ensure consistency across the engineering team. 

  • Technical Debt Management: Proactively identify, quantify, and prioritize technical debt, balancing rapid feature delivery with long-term system health. 

  • Mentorship & Leadership: Provide high-level guidance to Senior and Mid-level developers, conducting deep-dive code reviews and fostering a culture of technical excellence. 

  • Experience: 10+ years in software engineering, with at least 3+ years in a Lead Architect or Principal Engineer capacity. 

  • Deep Technical Mastery: Expert knowledge of the .NET ecosystem (C#, .NET Core/6/8+, ASP.NET) and deep understanding of legacy .NET Framework internals. 

  • Proven Migration Track Record: Demonstrated experience in successfully migrating or modernizing large-scale, complex legacy systems. 

  • AI-Augmented Engineering: Proficiency in using AI tools (GitHub Copilot, LLMs) for code analysis, refactoring, and architectural prototyping. 

  • Leadership: Ability to defend architectural decisions to stakeholders while earning the respect of high-seniority engineers. 

* Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation.

Pay
Not stated
Where
Péxs · Budapest · Debrecen
Work
Not stated
Type
Full time
Posted
26 Oct, 2026
Apply on the original postingSign in to apply

Unverified board

more at Deutsche Telekom IT Solutions.

26 Oct, 2026

Deutsche Telekom IT Solutions

DevOps Engineer - Atlassian Service Management Tools (REF5111S)

DTDeutsche Telekom IT Solutions logo
  • Full time
  • DevOps & Infra

Budapest +4

Full time

Details
26 Oct, 2026

Deutsche Telekom IT Solutions

DevOps Engineer (REF4970L)

DTDeutsche Telekom IT Solutions logo
  • Full time
  • DevOps & Infra

Budapest +4

Full time

Details
26 Oct, 2026

Deutsche Telekom IT Solutions

Solution Architect - német nyelvtudással, UCC / Voice megoldások - REF5135I

DTDeutsche Telekom IT Solutions logo
  • Full time
  • Senior level
  • Engineering

Budapest +4

Full time

Details

similar roles.

26 Oct, 2026

Unit4

Senior Performance & Optimisation Consultant

UNUnit4 logo
  • Full time
  • Senior level
  • Remote
  • Data & ML

London, gb

Remote

Details
26 Oct, 2026

gilead

Director, Data and AI Product Owner, Research

GIgilead logo
  • Leadership
  • Data & ML

United States - California - Foster City

Salary not listed

Details
26 Oct, 2026

gilead

Associated Director Data & AI Delivery Lead – Clinical Development

GIgilead logo
  • Leadership
  • Data & ML

United States - California - Foster City

Salary not listed

Details
26 Oct, 2026

Travoom

Principal AI translation architect 200 languages

TRTravoom logo
  • Full time
  • Staff level
  • Remote
  • Data & ML

Austin, us

Remote

Details
16 Jul, 2026

Healthcare

Modern AI Scientist

HEHealthcare logo
  • Remote
  • Data & ML

IN +2

Remote

Details
1 Oct, 2026

Freese

Program Director – San Antonio International Airport (SAT)

FRFreese logo
  • Leadership
  • Data & ML

San Antonio +2

Salary not listed

Details