Senior Software Engineer

Join Infiterra and help power the future of subscription e-commerce.

Infiterra's B2B SaaS platform helps IT Distributors and Managed Service Providers (MSPs) automate and grow their subscription business. With 100+ customers in 75 countries, we're recognized for innovation and global impact—and we're just getting started. We foster a collaborative and growth-oriented culture, allowing you to be part of a dynamic, forward-thinking team.

As a Senior .NET Software Engineer, you'll be an integral part of our dynamic agile team, leveraging the Scrum framework to drive the development of innovative features while ensuring the continuous enhancement and scalability, while working at the heart of our subscription e-commerce platform—the multi-tenant B2B engine that powers global distributors. Our collaborative environment embraces modern software engineering practices, including asynchronous and parallel programming techniques, to deliver robust solutions.

From building scalable services to integrating major Software Vendors with our platform, you'll play a key role in shaping how our product evolves.

Your goal?

To design and build reliable, high-performance software that simplifies subscription services delivery, while keeping scalability and clean architecture top of mind.

You'll be hands-on with modern .NET (5 & 8), C#, SQL, and microservices—writing code, integrating APIs, and working with containers and CI/CD pipelines. You'll collaborate across teams (POs, BAs, QA, DevOps) in an Agile environment, ensuring smooth delivery of features and improvements.

You won't just code features—you'll own them end-to-end, from design to deployment, ensuring performance, scalability, and quality.

This role is a great fit for someone who enjoys complex technical challenges, has experience with high-traffic applications, and thrives in a collaborative engineering culture.

You're a curious and analytical engineer who sees the big picture but sweats the details. You enjoy diving into system architecture, making thoughtful trade-offs, and writing clean, testable code.

You thrive in a fast-paced environment where innovation meets stability. You're not just a builder—you're a problem solver who looks for ways to make systems more efficient, scalable, and maintainable.

You value teamwork and knowledge-sharing, but you're also confident in owning features independently. You're someone who wants to grow while helping the team grow.

• Work on a platform that directly impacts customers across 75+ countries
• Hands-on exposure to APIs, billing systems, and large-scale B2B commerce
• A collaborative engineering culture with peer-led code reviews and knowledge-sharing
• Opportunities to shape system architecture and technical direction
• Friendly, dynamic team with room to grow and learn

• Full Lifecycle Involvement: Active involvement throughout our S-SDLC, from analysis and architectural design to implementation, testing, and deployment.
• .NET Application Development: Develop new and existing .NET web applications (.NET 5+ and .NET 8).
• Database Interaction: Design, build, and optimize database interactions (MSSQL, PostgreSQL, T-SQL)
• Clean, Scalable Code: Write and maintain clean, reliable code that prioritizes scalability and performance.
• Test-Driven Development: Implement a test-driven coding approach (we like integration and unit testing).
• Quality Assurance:  Ensure high code quality standards by fostering a culture of peer-led code reviews.
• Design Principles:  Apply design principles (we follow SOLID) patterns (like factory method, strategy, etc.) as necessary.
• CI/CD Pipelines: Build and maintain continuous integration and deployment pipelines.
• Optimization: Enhance system quality by identifying issues and common patterns, and pinpointing opportunities for improvement.
• Innovative Solutions: Be constantly on the lookout for designing innovative technical solutions.
• Documentation: Contribute to the development of comprehensive technical documentation.
• Cross-functional Collaboration: Work closely with a diverse group of team members, such as POs, BAs, Automation Testers, and DevOps, to shape product requirements.
• Mentoring: Be a team player by providing support and sharing your expertise with the team.

What you'll bring

• Experienced with .NET framework (.NET 5+, .NET 8) and C#.
• Strong SQL Server skills (queries, stored procedures, performance tuning, SSRS)
• Strong understanding of HTTP, JSON, and RESTful API principles for consumer-facing and enterprise applications.
• Knowledge of billing and subscription management systems, including subscription lifecycles, billing processes, cancellations, and asynchronous call handling.
• Proven experience with high-traffic applications emphasizing performance and scalability.
• Apply SOLID principles and design patterns where appropriate
• Implement test-driven development (unit + integration testing)
• Self-starter with a keen ability to identify and resolve challenging issues.
• Contribute to CI/CD pipelines and deployment automation
• Committed to knowledge-sharing and collaborative teamwork.
• Hold a University degree in Computer Science or any related field.
• Fluent in the Greek and English languages, both oral and written.

Bonus points 

• Working with CI/CD pipelines.
• Knowledge of how message brokers such as RabbitMQ and Apache Kafka work.

Sounds like you?
It is a Win-Win

• A tech-passionate team with a friendly culture and an international breed.
• Remote-first & hybrid work.
• Flexible working hours.
• Work-from-anywhere scheme.
• Health and life insurance plan.
• Home office allowance.
• Learning & development budget.
• State-of-the-art workspaces for on-site collaboration.

If you feel you're a great fit, please apply
We'd love to hear from you

All applications will be treated with confidentiality.
Please note that due to the high volume of CVs received, only candidates who are a good fit will be contacted for an interview.

As part of our commitment to diversity in the workforce, Infiterra is dedicated to Equal Employment Opportunity, ensuring that all individuals are treated with respect and consideration without regard to race, color, national origin, ethnicity, gender, disability, sexual orientation, gender identity, or religion.