Hoyack
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Full Stack MERN/PERN Fintech Engineer
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Hoyack 1 day ago Be among the first 25 applicants Join to apply for the
Full Stack MERN/PERN Fintech Engineer
role at
Hoyack Get AI-powered advice on this job and more exclusive features. 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. 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
Seniority level
Seniority level Mid-Senior level Employment type
Employment type Full-time Job function
Job function Other Industries Computer and Network Security Referrals increase your chances of interviewing at Hoyack by 2x Sign in to set job alerts for “Full Stack MERN/PERN Fintech Engineer” roles.
Software Engineer, Entry to Junior Level
San Antonio, TX $100.00-$500.00 1 month ago Multiple Positions at San Antonio Tech firm
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Full Stack Developer (C# / .Net / JS / SQL / AWS)
Full Stack Developer (ReactJS, Vue, Angular)
Front End GUI Developer / Software Engineer
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Full Stack MERN/PERN Fintech Engineer
role at
Hoyack 1 day ago Be among the first 25 applicants Join to apply for the
Full Stack MERN/PERN Fintech Engineer
role at
Hoyack Get AI-powered advice on this job and more exclusive features. 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. 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
Seniority level
Seniority level Mid-Senior level Employment type
Employment type Full-time Job function
Job function Other Industries Computer and Network Security Referrals increase your chances of interviewing at Hoyack by 2x Sign in to set job alerts for “Full Stack MERN/PERN Fintech Engineer” roles.
Software Engineer, Entry to Junior Level
San Antonio, TX $100.00-$500.00 1 month ago Multiple Positions at San Antonio Tech firm
San Antonio, TX $55,666.00-$777,777.00 1 month ago San Antonio, TX $95,000.00-$125,000.00 2 weeks ago San Antonio, TX $78,853.00-$236,579.00 3 weeks ago Software Engineer (Automated Program Analysis)
Full Stack Developer (C# / .Net / JS / SQL / AWS)
Full Stack Developer (ReactJS, Vue, Angular)
Front End GUI Developer / Software Engineer
We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.
#J-18808-Ljbffr