Senior Backend Software Engineer (.NET, Fintech)

TL;DR

Senior Backend Software Engineer (.NET, Fintech): Designing and developing server-side logic for mission-critical financial applications with an accent on high-performance service architecture and database optimization. Focus on building secure, scalable microservices and ensuring compliance with banking industry standards.

Location: Hybrid, Athens, Greece

Company

Quento Technologies S.A. is the ICT arm of the hirify.global, delivering innovative solutions across AI, Digital Engineering, Cloud, and Cybersecurity for global businesses.

What you will do

• Design and maintain scalable, secure back-end services and APIs using .NET Framework and .NET Core.
• Architect robust data models and database solutions using MS SQL Server.
• Collaborate with front-end developers to implement RESTful APIs and ensure seamless integration.
• Enforce strict security and data protection measures in compliance with banking sector standards.
• Mentor junior engineers and contribute to architectural decision-making.
• Participate in the full agile software development lifecycle from planning to deployment.

Requirements

• University degree in Computer Science, Engineering, or a related field.
• Minimum 4 years of professional experience in back-end software development.
• Expert-level proficiency in C#, .NET Framework, and .NET Core.
• Proven experience in the Financial Services or Banking industry is mandatory.
• In-depth knowledge of MS SQL Server, complex schema design, and query optimization.
• Excellent verbal and written communication skills in English.

Nice to have

• Experience with CI/CD pipelines.
• Experience with cloud platforms, specifically Azure.
• Solid understanding of Domain-Driven Design and SOA.

Culture & Benefits

• Competitive compensation with annual bonus programs and ticket restaurant card.
• Flexible working model with hybrid benefits and home equipment support.
• Private health insurance, onsite occupational doctor, and workplace counselor.
• Access to onsite gym, wellness facilities, and modern office amenities.
• Personalized annual learning and development plan with mentoring and coaching.