Software Architect (.NET & Azure)

Billennium; Poland; On-site; PLN 240,000 - 320,000; Full time

Benefits offered by this job

Work from home flexibility

Private medical care via Worksmile

Life insurance via Worksmile

Sports card via Worksmile

Veterinary care via Worksmile

Job summary

Billennium is seeking an experienced Software Architect to join our internal team in Poland. You will design secure, scalable Azure-based solutions while actively contributing to development with modern .NET technologies.

Collaborate with engineering teams and stakeholders to translate complex requirements into clear technical solutions. You will lead architectural decisions, drive secure design, and mentor developers, fostering continuous improvement and PoC exploration in a collaborative

Qualifications

• 6+ years of software engineering experience, including 2+ years in architecture design.
• Proficiency in .NET ecosystem (C#, .NET Core / .NET 8+, EF).
• Experience with Azure cloud services (PaaS, serverless, integrations).
• Knowledge of microservices, modular monoliths, and integration patterns.
• Strong knowledge of secure software design and enterprise architecture principles.
• Experience working in distributed teams and collaborating across functions.
• English at least B2/C1 level.

Responsibilities

• Design and shape secure, scalable cloud architectures in Azure.
• Collaborate with developers and stakeholders to co-create high-quality solutions.
• Contribute hands-on by writing, reviewing, and refining .NET/C# code.
• Facilitate technical workshops and help stakeholders understand architecture concepts.
• Guide development teams to align with architectural standards with clarity and empathy.
• Support innovation by building PoCs and exploring new technologies.
• Encourage continuous improvement by reducing technical debt and promoting best practices.

Skills

NET/C# mastery

Cloud architecture

Microservices

Secure software design

English proficiency

Strong communication

Distributed teamwork

Tools

Azure

Entity Framework

GitHub Copilot

Job description

We’re not just another consulting and outsourcing company – we are passionate about pushing boundaries and creating innovative IT solutions that bring value to our clients and satisfaction to our teams.

At Billennium, we bring together talented, supportive professionals who thrive on collaboration, shared learning, and continuous growth. Your voice matters here, and your ideas help shape meaningful, future-ready digital solutions.

Our values – captured by the acronym TIGER (Trust, Innovation, Growth, Energy, Responsibility) – guide how we collaborate, support one another, and deliver excellence.

Role Summary

We are looking for an experienced and thoughtful Software Architect to join our internal team.

In this role, you will play a key part in designing secure and scalable Azure-based solutions while actively contributing to development using modern .NET technologies. You will collaborate closely with engineering teams and stakeholders, helping translate complex requirements into clear, effective technical solutions.

What You Will Do

• Design and shape secure, scalable, and resilient cloud architectures in Azure
• Collaborate closely with developers and stakeholders to co-create high-quality solutions
• Contribute hands‑on by writing, reviewing, and refining .NET/C# code
• Facilitate technical workshops and support stakeholders in understanding technical concepts
• Guide development teams with clarity and empathy to align with architectural standards
• Support innovation by building Proof of Concepts (PoCs) and exploring new technologies
• Encourage continuous improvement, including reducing technical debt and strengthening best practices

Requirements

Basic Qualifications:

• 6+ years of experience in software engineering, including at least 2 years in architecture design
• Strong expertise in .NET ecosystem (C#, .NET Core / .NET 8+, Entity Framework)
• Solid experience with Azure cloud (PaaS, serverless, integrations)
• Understanding of microservices, modular monoliths, and system integration patterns
• Practical knowledge of secure software design and enterprise architecture principles
• Experience working collaboratively in distributed teams
• Strong communication skills and confidence in presenting ideas clearly
• English at B2/C1 level

Nice to Have Qualifications:

• Experience with ADRs and architecture documentation practices
• Familiarity with AI-supported development tools (e.g., GitHub Copilot)
• Azure certifications (AZ-204, AZ-305)
• Experience with PoCs and innovation initiatives
• Professional development – continuous learning opportunities and internal mobility
• Comprehensive benefits – access to Udemy for Business
• Flexibility – remote work and adaptable working hours
• Benefits package via Worksmile (private medical care, life insurance, sports card, veterinary care, and more)
• Innovative and supportive environment – where your ideas are valued
• Team-building traditions – including company‑wide events and initiatives