Credit Card Lead Developer

Role Summary 

This role is a hands-on technical lead position requiring deep expertise in .NET and Microsoft Azure. The engineer is expected to design, implement, review, and deliver core backend services that must be robust, secure, and scalable. 
 
The role carries technical ownership and decision-making responsibility for system architecture, reliability, and performance.  
 
The primary requirement is the ability to build and scale complex backend systems, apply strong cloud and security fundamentals, and take end-to-end responsibility for production-quality engineering outcomes. 

Key Outcomes (What this role delivers) 

• Scalable, fault-tolerant backend services built in .NET 

• Cloud-native production systems on Azure with strong observability 

• Payment and transactional workflows that are idempotent, auditable, and correct 

• Improved platform reliability, performance, and long-term scalability 

• Higher engineering standards through strong reviews, mentorship, and architecture leadership 

Core Responsibilities 

• Design and own backend architecture (scalability, reliability, security, cost trade-offs) 

• Build, review, and deliver production-grade .NET services end-to-end 

• Operate services in Azure with high operational maturity (logging, metrics, alerts, incident response) 

• Identify and resolve bottlenecks and failure modes proactively 

• Ensure correctness of transactional and financial data; apply secure coding practices 

• Lead code/design reviews and mentor engineers; raise overall backend capability 

Required Qualifications 

• 5+ years backend engineering experience (production systems) 

• Background in fintech, banking, or financial services platforms. 

• Strong expertise in .NET / C# 

• Strong hands-on expertise in Azure SQL 

• Deep experience running systems in Microsoft Azure (production environment) 

• Proven ability to work in a product-driven environment and deliver outcomes (not just code) 

• Demonstrated AI-first mindset (automation, AI-assisted workflows, LLM integration exposure is a plus) 

• Strong fundamentals in: 

o   Distributed systems 

o   Microservices architecture 

o   API design 

o   Transactional data systems 

o   System design and data modeling 

Preferred 

• Front-end development experience with Angular expertise 

• Experience with payments (Domestic, Cross border payments), credit card issuance, or virtual card Payment. 

• Familiarity with PCI DSS concepts, tokenization, and payment security practices. 

• Experience supporting high-volume, financial transaction systems. 

• Experience with event-driven systems, queues/pub-sub