Team Lead Software Engineer – Billing Squad

Alex Staff Agency

Lead Software Engineer coding in C# for an AI-powered travel management platform. Oversee technical decisions and mentor team members in a hybrid work environment in Rotterdam.

Posted 6/11/2026full-timeRotterdam • 🇳🇱 NetherlandsSenior💰 €7,000 - €8,000 per monthWebsite

Tech Stack

Tools & technologies

DockerERPMicroservices.NETPostgresRabbitMQ

About the role

Key responsibilities & impact

Write code in C# / .NET (the role requires substantial hands-on coding)
Technically lead the Billing Squad: code review, mentoring, participating in hiring
Communicate with VP and C-level stakeholders, transform business requirements into technical tasks
Design and evolve microservices architecture using Docker
Work with PostgreSQL, RabbitMQ (or equivalents)
Apply architectural patterns: SOLID, TDD, DDD, Event Sourcing, CQRS
Participate in developing the billing/payments/invoicing domain, ERP integrations

Requirements

What you’ll need

7+ years of development experience in C# / .NET — deep expertise
2+ years in a Team Lead or equivalent role (technical leadership)
PostgreSQL — experience with relational databases
RabbitMQ or similar message brokers
Microservices + Docker
Architectural patterns: SOLID, TDD, DDD, Event Sourcing, CQRS
Technical leadership: code review, mentoring, hiring
English — strong, able to work with C-level (written and spoken at negotiation level)
Proven experience managing VP and C-level stakeholders

Benefits

Comp & perks

Hybrid work from the Rotterdam office
Work-life balance policy
Growth at the intersection of travel, finance, and engineering
Municipality parking card (for office employees)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

C#.NETmicroservicesDockerPostgreSQLRabbitMQSOLIDTDDDDDCQRS

Soft Skills

technical leadershipmentoringcode reviewcommunicationstakeholder management