Senior Software Engineer - Backend API Engineering
PactFi
Software Engineering
New York, NY, USA
Posted on Dec 10, 2025
Key Responsibilities
Backend API Development & Optimization
- Design, build, and maintain RESTful APIs using PHP Laravel to support PactFi’s financial workflows, partner onboarding, and investment operations.
- Ensure APIs are secure, scalable, fault-tolerant, and optimized for low latency.
- Implement API versioning, documentation, and automated testing.
Third-Party Integrations & Middleware
- Develop integrations with financial data providers, custodians, broker-dealer systems, KYC/AML services, payment processors, and CRM platforms.
- Build workflows for data synchronization, event processing, and multi-system orchestration.
- Develop middleware solutions to normalize, validate, and transform financial data across external APIs and PactFi systems.
Database & Data Management
- Design and optimize relational databases (MSSQL or MySQL) for investment data, partner information, and operational workflows.
- Ensure strong data governance, auditability, and compliance with financial-sector data requirements.
- Build data-layer tools for secure and reliable data movement.
Security, Compliance & Access Control
- Implement secure authentication & authorization: OAuth2, JWT, API keys.
- Develop and maintain role-based access controls (RBAC) aligned with financial industry requirements.
- Conduct security audits, vulnerability assessments, and compliance reviews.
- Enforce encryption and secure handling of sensitive financial and customer data.
Qualifications
Required
- 5+ years of backend development experience with PHP Laravel.
- Strong expertise in RESTful API architecture and distributed backend systems.
- Experience integrating with external APIs (financial systems, CRMs, payment platforms, KYC/AML providers).
- Strong database skills with MSSQL, MySQL, and caching systems such as Redis.
- Proficiency with automated testing frameworks and API monitoring.
- Strong debugging, performance tuning, and problem-solving ability.