Job Title: Senior Software Developer – Backend API Engineering

Company Name: PactFi

Job Details: Hiring,Remotely,in,New,York,,NY,,USA,In-Office,or,Remote,150K-170K,Annually,Senior,level

Job Url: https://builtin.com/job/senior-software-developer-backend-api-engineering/8308978

Job Description: About PactFi
Private asset markets (PE, Private Credit, VC, Real Estate) have 10x to 9.8T in AUM over the past decade and are projected to grow to $17T in the next five years. However, digital infrastructure has not kept pace, with most of the market operating predominantly in error-prone, internal-only software solutions.
PactFi provides secure, end-to-end, operational infrastructure for managing complex private credit transactions. Our web-based application brings together all parties involved in such a transaction to more efficiently allocate capital, complete KYC, share documents, manage funds flow, and more. The platform is secured to a bank-grade standard, and we have received our SOC 2 Type 2 attestation.

PactFi was developed in close partnership with two of the industry's largest players, both of whom represent the top 3 players in the private credit space by both size (AUM) and deal activity.
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.

What We Offer
Competitive salary + equity.

Healthcare coverage.

401k