Hoyack
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
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
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
Health, dental, and vision insurance
Unlimited PTO
Collaborative and mission‑driven work environment
Walkable office in the heart of
Downtown San Antonio
#J-18808-Ljbffr
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
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
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
Health, dental, and vision insurance
Unlimited PTO
Collaborative and mission‑driven work environment
Walkable office in the heart of
Downtown San Antonio
#J-18808-Ljbffr