🚀 Role: .NET C# Software Engineer (Medior/Senior)
📍 Location: Lisbon (Hybrid)
📅 Start Date: January 2026
💰 Salary: Competitive with benefits
Why Are We Hiring?
As we continue to scale our expense management platform, we are looking for a talented Software Engineer to join our fast-paced and international engineering team. You will play a key role in modernizing one of our main products, through AI. This role is ideal for someone with a strong technical foundation who thrives in a collaborative and agile environment and loves to explore AI technology.
💥 What Will You Do:
Designing, developing, and maintaining software applications using .NET 8, as part of an agile development team.
Design scalable systems and write robust, maintainable code following best practices for software development.
Contribute to architectural decisions and codebase improvements.
Help in modernizing the product through AI.
Ensure quality via unit testing, code reviews, and continuous integration.
Work closely with product managers and designers to bring product vision to life.
Participate in regular sprints and collaborate cross-functionally with QA, DevOps, Support and Product teams.
🧩 About You:
Bachelor’s degree in Computer Science, Engineering, or equivalent experience.
4-5 years of experience in software development.
A team player with strong problem-solving skills and attention to detail.
🛠️ Tools Proficiency:
Solid experience with implementation of REST APIs, .NET 8 C# and SQL Server.
Experience working in cloud environments, ideally Azure.
Proven knowledge of Microservices and Onion architecture with DDD principles is a plus.
Experience in various AI technologies usage and integrations is a plus.
Experience in the fintech industry (or similar) is a plus.
Familiar with Git, CI/CD pipelines, and container technologies is a plus
🤖 Analytical skills and AI proficiency: all team members are expected to demonstrate strong analytical capabilities and make smart use of AI tools, whatever helps them work smarter and drive results in their role.
🌍 Language Skills: fluent English, any other language is a plus
Why Join Mobilexpense?
We’re not a giant enterprise. We’re a growing B2B SaaS scale-up with 3,000+ customers and big ambitions. Here, you’ll be empowered to build, test, and own your growth engine—without red tape or layers of approvals.
Work with a diverse, international team (27 nationalities, 47% female representation)
Direct access to leadership, flat structure, high transparency
Offices in Belgium, Netherlands, Germany, Sweden, Portugal, and Romania
A clear mission: make life easier for finance teams, HR, and employees across Europe
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