About Hoyack, LLC

Hoyack, LLC is a Texas-based technology company specializing in building modern, scalable software solutions for the fintech and healthcare industries. We partner with startups and growth-stage companies to accelerate product development, streamline financial infrastructure, and deliver exceptional user experiences. Our team thrives on solving complex problems with clean code, thoughtful design, and a deep understanding of regulated environments. At Hoyack, we value curiosity, accountability, and craftsmanship — and we're building products that make a meaningful impact.

Job Title: Mid-Senior Full Stack Fintech Developer (MERN/PERN + TypeScript)

Location: Hybrid – Downtown San Antonio, TX (75% in-office)
Job Type: Full-time
Experience Level: Mid to Senior

About the Role

We're looking for a skilled Full Stack Developer with strong fintech experience to join our team. This role is ideal for someone who enjoys working across the stack, thrives in collaborative environments, and has hands-on experience with card processing and banking rails. You'll help us build secure, scalable systems that power real-time financial transactions and account services.

Note: This is not a remote position. Candidates must be local or willing to relocate, and be able to work on-site in Downtown San Antonio at least 75% of the time.

Key Responsibilities

Design, develop, and maintain full-stack applications using MERN (MongoDB, Express, React, Node.js) and PERN (PostgreSQL, Express, React, Node.js) stacks
Build responsive and accessible frontends using React, Next.js, and Tailwind CSS
Write clean, well-structured, and well-typed code in JavaScript and TypeScript, with a focus on maintainability and scalability
Integrate with payment processors, card networks, and banking APIs (e.g., ACH, RTP, FedNow)
Build and maintain backend services and APIs to support onboarding, KYC/AML, account management, and transaction flows
Collaborate with designers and product managers to build intuitive financial interfaces
Ensure compliance with security, privacy, and regulatory standards in financial systems
Participate in code reviews, technical design sessions, and architecture discussions

Requirements

4+ years of experience as a full stack developer
Strong proficiency in JavaScript and TypeScript, including React, Node.js, and Express
Experience building apps with Next.js and styling with Tailwind CSS
Deep understanding of MongoDB and PostgreSQL
Hands-on experience integrating with financial APIs and banking/payment infrastructure
Familiarity with platforms like Plaid, Galileo, Marqeta, Lithic, Synapse, Unit, Modern Treasury, or similar
Experience with KYC/AML, PCI DSS, and secure coding practices
Experience with KYC platforms such as Alloy, Persona, Middesk, or Jumio
Able to work on-site in Downtown San Antonio at least 75% of the time

Nice to Have

Experience with TypeORM, Mongoose, or similar database abstraction layers
Familiarity with Docker, Kubernetes, and modern CI/CD practices
Knowledge of event-driven architectures, webhooks, and message queues
Prior experience in embedded finance, banking-as-a-service (BaaS), or neobanking platforms
Understanding of SOC 2, GDPR, or other compliance standards

Interview Requirement

Candidates must be available to interview in person in San Antonio, TX
Remote interviews will not be considered for this position

Benefits

Competitive salary
Health, dental, and vision insurance
Unlimited PTO
Collaborative and mission-driven work environment
Walkable office in the heart of Downtown San Antonio

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Hoyack

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