One of the core contributors for the development of core payment processing systems and admin dashboard functionality for our oil and gas industry payment platform. This role requires deep expertise in both backend payment processing architecture and frontend dashboard development, with primary focus on backend systems that handle financial transactions at scale.
Core Responsibilities
Payment Processing Architecture: Design and implement secure, PCI-compliant payment processing systems supporting credit cards, ACH, and digital wallets
Transaction Management: Build comprehensive transaction lifecycle management including processing, refunds, voids, and settlement reconciliation
Payment Gateway Integration: Architect and implement integrations with multiple payment processors while maintaining flexibility to switch providers
Admin Dashboard Backend: Develop robust APIs for transaction monitoring, customer management, and merchant administration
Database Design: Design and optimize database schemas for high-volume transaction processing and real-time reporting
Security Implementation: Implement tokenization, encryption, and fraud detection systems meeting PCI DSS compliance requirements
API Development: Create RESTful APIs with consistent error handling, authentication, and webhook capabilities
Performance Optimization: Ensure sub-3-second transaction processing times and system scalability for high-volume periods
What They Will NOT Do
Pure Frontend Development: Will not focus primarily on UI/UX design or embeddable widget styling
DevOps Infrastructure: Will not manage Azure cloud setup, CI/CD pipelines, or infrastructure deployment
Project Management: Will not handle sprint planning, stakeholder coordination, or timeline management
Quality Assurance: Will not perform systematic testing or test automation (beyond unit testing)
Business Development: Will not engage in merchant onboarding processes or client-facing activities
Key Accountabilities & KPIs
Transaction Processing Performance: Maintain <3-second processing times for 99.9% of transactions
System Reliability: Achieve 99.9% uptime for payment processing services
API Quality: Deliver APIs with <100ms average response times and comprehensive error handling
Security Compliance: Pass all PCI DSS audits and security reviews without critical findings
Integration Success: Successfully integrate with primary payment processors within timeline
Code Quality: Maintain >80% test coverage for payment processing modules
Database Performance: Optimize queries to handle 10M+ transactions with <500ms response times
Required Technical Skills
Backend Technologies: 5+ years with C#/.NET Core, ASP.NET Web API, Entity Framework
Database Expertise: Advanced SQL Server/MSSQL, database design, performance optimization
Payment Processing: Experience with payment gateways (Stripe, Authorize.net), PCI compliance, tokenization
Frontend Development: Proficient in React, TypeScript/JavaScript, modern CSS frameworks
API Design: RESTful services, authentication (OAuth 2.0, JWT), webhook implementation
Security: Understanding of encryption, secure coding practices, vulnerability management
Cloud Platforms: Experience with Azure services, particularly App Services and SQL Database
Version Control: Git workflows, code review processes, branching strategies
Preferred Capabilities
Previous fintech or payment processing industry experience
Experience working for startup or high-growth organizations, with the ability to thrive in fast-paced, evolving environments
Experience with high-volume transaction systems (>$1M monthly processing)
Familiarity with fraud detection systems and risk management
Understanding of financial regulations and compliance requirements
Experience with microservices architecture and event-driven systems
Knowledge of performance monitoring tools (Application Insights, New Relic)
Why OutsideHire?
An inclusive and dynamic work environment that values creativity and collaboration
Opportunities to work on cutting-edge projects that make an impact
Perks: Competitive salary, remote work, professional development support, etc.
A team that truly values your skills and contributions