Lead Full-Stack Software Engineer

Location: Poland (remote) Work Schedule: Full-time Contract Type: pure B2B (JDG)

We are looking for a Lead Full-Stack Software Engineer to drive the design and development of key components of the platform. You will play a critical role in shaping the engineering backbone, guiding development teams, and ensuring high-quality delivery aligned with modern cloud and AI-first practices.

Our project is a strategic modernisation initiative for our client aimed at replacing a legacy SAP MII-based manufacturing performance analysis platform ahead of its end of support. The project focuses on building a scalable, cloud-native platform that enables efficient machine data ingestion, processing, and reporting across global manufacturing operations.

The solution will integrate with SAP S/4HANA, ServiceNow, and enterprise data platforms, providing unified operational visibility and supporting approximately 1,300 machines across multiple factories.

The delivery model will be based on cloud-native architecture and modular design and AI-first, spec-driven development practices.

Requirements:

Must-have:

• Strong hands-on experience with modern backend development using .NET (C#)
• Solid experience with frontend development using React or ability to effectively collaborate with frontend teams working in this stack
• Strong experience designing enterprise APIs and integration contracts, including REST APIs, OpenAPI specifications, validation, versioning, and integration with external enterprise systems
• Experience with relational data modelling, SQL performance considerations, and reporting/read-model design for operational and analytical consumers
• Proven experience building and operating applications in Microsoft Azure, including:
  • Azure Container Apps (or equivalent container platforms)
  • Azure SQL Database
  • Azure networking (VNet, Private Endpoints)
• Practical experience with containerised environments (Docker) and cloud-native deployment models
• Strong understanding of cloud-native architecture principles, including:
  • Stateless services
  • Scalability and resiliency patterns
  • Secure service-to-service communication
• Experience working with CI/CD pipelines, preferably:
  • Azure DevOps Pipelines
  • Git-based workflows
• Experience implementing infrastructure as code, ideally using Bicep or similar tools
• Good understanding of application security practices, including:
  • Secure secret management (e.g., Azure Key Vault)
  • Identity and access management (Entra ID / OIDC)
• Experience with observability and monitoring, such as: Logging, metrics, and tracing using Azure Monitor / Application Insights
• Strong experience in technical leadership, including:
  • Guiding engineering teams
  • Driving code quality and best practices
  • Participating in architecture discussions

Nice-to-have:

• Experience with event-driven and asynchronous architectures, including:
  • Azure Service Bus (queues/topics)
  • Azure Event Hubs
• Experience with DevSecOps tooling and practices, including:
  • SonarCloud (code quality)
  • Trivy or similar container security scanning tools
  • IaC validation tools
• Exposure to AI-assisted development tools (e.g., GitHub Copilot) and spec-driven development approaches
• Experience working in large-scale enterprise environments with:
  • Distributed teams
  • Multi-system integration landscapes
  • High availability and security constraints

Soft Skills:

• Strong ownership mindset and ability to drive delivery in a complex, multi-stakeholder environment
• Excellent communication skills with ability to operate in a client-facing role
• Structured thinking and ability to work within defined SDLC and governance models
• Proactive, solution-oriented approach with focus on long-term platform sustainability

Responsibilities:

• Lead design and development of scalable, cloud-native platform
• Define and implement architecture-aligned solutions in collaboration with Solution Architects and client stakeholders
• Drive engineering best practices, including code quality, testing, CI/CD, and security
• Contribute to technical decision-making and architecture discussions (ADR definition and alignment)
• Mentor and guide engineers, supporting team growth and delivery excellence
• Ensure alignment with AI-first, spec-driven development approach and engineering workflows
• Collaborate closely with distributed teams, including DevOps, QA, Product Manager/Business Analyst, and client stakeholders
• Support integration development with enterprise systems (e.g., SAP, ServiceNow, Data Lake)
• Participate in end-to-end delivery, from discovery and design to implementation and release
• Ensure adherence to agreed SDLC processes and release workflows

Why this position:

• Opportunity to work on a large-scale global enterprise program
• Exposure to cutting-edge AI-first engineering practices
• Collaboration with international teams
• Influence on architecture and engineering standards for a strategic platform
• Long-term engagement with a high-visibility enterprise client