Software Engineer III – Open Banking

Frost; San Antonio (TX); Hybrid; USD 110,000 - 160,000; Full time

Benefits offered by this job

Relocation assistance

Job summary

Frost is seeking a Software Engineer III – Open Banking to design, build, and document scalable banking solutions. You will collaborate with Product Owners, Business Analysts, and engineering teams to translate requirements into robust software; participate in design reviews, code reviews, and performance tuning.

This role emphasizes security, reliability, and continuous improvement within a multi-team environment.

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related field.
• Minimum 4 years of experience identifying issues across programs and systems.
• Strong foundation in software engineering principles, design patterns, and modern development.
• Proven expertise in Java, SQL, Spring Boot, and Microservices.
• Experience designing and building REST APIs, OAuth2/JWT, and service-to-service communication.
• Experience with event-driven architectures using Kafka or RabbitMQ.
• Knowledge of Domain-Driven Design (DDD) and distributed systems.
• Hands-on experience with relational and NoSQL databases.
• Experience with API Gateway and security, including authentication/authorization.
• Proficient in unit and integration testing (JUnit, Mockito).

Responsibilities

• Design, write, test, implement, and document solutions for modules.
• Collaborate with Product Owners, Business Analysts, and lines of business to estimate effort and feasibility.
• Review coding for a group of engineers to ensure alignment with standards.
• Lead technical design discussions, mentor engineers, and promote engineering best practices.

Skills

Java

Spring Boot

Microservices

REST APIs

Spring Security

OAuth2/JWT

DDD

Distributed systems

Unit testing

Troubleshooting

Code reviews

Leadership

Communication

Education

Bachelor's degree in Computer Science/Engineering

Tools

Docker

Kubernetes

OpenShift

Jenkins

GitHub Actions

Kafka

RabbitMQ

API Gateway

Job description

Unfortunately, we currently are not able to sponsor or transfer a sponsorship to Frost. This includes, H-1B, TN, OPT, O-1, H4EAD, F-1, L-1, all Student Visas

The candidate for this exciting opportunity will need to be living in the San Antonio, Texas or the Austin, Texas or the Dallas, Texas areas. This role will require 2 to 3 days per month at the One Frost Corporate Campus office in San Antonio. Frost will help with relocation costs to move to Texas area if one is not currently living in those areas.

Job Description

It’s about creating solutions that help people.

Do others often ask you for technology advice and assistance? Are you always looking for innovative ways to help people? Do you like having the autonomy to build new solutions from the ground up? If so, being a Software Engineer III at Frost could be the job for you.

At Frost, it’s about more than a job. It’s about having a flourishing career where you can thrive, both in and out of work. At Frost, we’re committed to fostering an environment that reflects our values and encourages team members to be the best they can be. In joining our adaptable, integrity-driven team, you’ll become part of Frost’s over 150-year legacy of providing unparalleled banking services.

Who You Are

As a Software Engineer III – Open Banking at Frost, you are our code guru, not only writing code but understanding the "why" behind it. Our software engineers believe in collaboration, ingenuity, and truly want to drive design and change in the IT realm. In this role, you will be responsible for designing, writing, testing, implementing, supporting, and documenting solutions for assigned programs and applications across the organization. You welcome a challenge and want to provide next level experiences to every individual that uses our systems.

What You’ll Do

• Design, write, test, implement, and document solutions for assigned program modules
• Collaborate with and provide technical advice to Product Owners, Business Analysts, and lines of business to estimate level-of-effort, timing, and feasibility, to design new systems based on business requirements, and to optimize system and program functionality
• Review coding for a group of software engineers to ensure alignment with business needs, change control procedures, and Frost development standards
• Always take action using Integrity, Caring, and Excellence to achieve all-win outcomes

What You’ll Need

• Bachelor’s degree in Computer Science, Engineering, in a related field, or equivalent experience
• Demonstrated ability to independently identify issues across interrelated programs and systems and develop the appropriate solutions, typically requiring a minimum of 4 years of experience
• Strong foundation in software engineering principles, design patterns, and modern development methodologies.
• Proven expertise in Java, SQL, Spring Boot, and Microservices architecture.
• Experience designing and building scalable, secure, and resilient enterprise applications.
• Proficient in developing REST APIs, API design, Spring Security, OAuth2/JWT, and service-to-service communication.
• Experience with event-driven architectures using Kafka or RabbitMQ.
• Strong knowledge of Domain-Driven Design (DDD) and distributed systems.
• Hands-on experience with relational and NoSQL databases.
• Experience with containerization and orchestration using Docker, Kubernetes, or OpenShift.
• Experience with API Gateway and API Management, including authentication, authorization, routing, rate limiting, and traffic management.
• Proficient in unit and integration testing using JUnit, Mockito, and related testing frameworks.
• Strong troubleshooting, debugging, and performance tuning skills across application, platform, and infrastructure layers.
• Knowledge of resiliency patterns including Circuit Breaker, Retry, Timeout, and Bulkhead.
• Ability to lead technical design discussions, perform code reviews, mentor engineers, and promote engineering best practices.
• Excellent communication and collaboration skills with engineering, architecture, security, product, and business stakeholders

Additional Preferred Skills

• Experience working with CI/CD pipelines using tools such as Jenkins, GitHub Actions.
• Having knowledge on Banking and Financial is preferred
• Knowledge of Open Banking, Banking-as-a-Service (BaaS), financial services platforms, payment processing, and industry security and compliance requirements.
• Experience working within cloud environments such as Azure, AWS, or Google Cloud Platform, including cloud‑native architecture patterns.
• Exposure to AI-assisted software development tools and engineering productivity platforms.
• Familiarity with front-end and mobile technologies such as Angular, React, Kotlin, Swift, Xcode, or similar frameworks.
• Experience contributing to architectural roadmaps, technology modernization initiatives, and platform engineering efforts.
• Demonstrated experience mentoring engineers and influencing technical direction across multiple teams.

At Frost, we care about your health, your family, and your future and strive to have our benefits reflect that. This includes:

• Medical, dental, vision, long‑term disability, and life insurance
• 401(k) matching
• Generous holiday and paid time off schedule
• Extensive health and wellness programs, including our Employee Assistance Program

Since 1868, Frost has dedicated their expertise to provide exceptional banking, investment, and insurance services to businesses and individuals throughout Texas. Frost is one of the 50 largest U.S. banks by asset size and is a leader in banking customer satisfaction. At Frost, it’s about being part of something bigger.