Full Stack Developer

About the Role

We are a dynamic merchant services provider delivering exceptional payment solutions to businesses. We’re looking for a Full Stack Developer to play a key role in building our enterprise software and managing our production infrastructure.

This position is ideal for someone who thrives in high-availability environments, enjoys solving complex system challenges, and is comfortable writing backend code to support mission-critical applications. You’ll be responsible for developing backend services, maintaining and optimizing Linux-based systems, managing Postgres databases, and securing cloud infrastructure.

Key Responsibilities

Software Development & Integration

Develop and maintain backend services to support internal and customer-facing applications.

Build and optimize APIs for seamless integration with third-party services and internal applications.

Write scalable, maintainable code in Golang (or be able to pick it up quickly if experienced in Java, C#, C, or Python).

Work with Node.js when necessary to maintain existing services.

Collaborate across teams to ensure system stability and deliver product improvements.

System Administration & DevOps

Maintain & optimize Linux (Debian) systems to ensure high availability and reliability.

Manage & optimize Postgres databases to maintain performance, integrity, and scalability.

Administer cloud infrastructure (Google Cloud) for scalability, performance, and security.

Monitor & automate deployments, logging, and incident responses.

Ensure system security & compliance through best practices and proactive monitoring.

Required Skills & Experience

5+ years of experience managing production Linux environments (preferably Debian-based).

Strong Postgres (or similar relational database) administration experience.

Solid background in security, networking, and system reliability.

Cloud infrastructure experience (Google Cloud preferred, AWS/Azure also valued).

API development and integration experience.

Proficiency in a backend programming language (Golang preferred, or Java, C#, C, Python).

Some experience with Node.js.

Excellent troubleshooting skills & ability to work independently.

Preferred Qualifications

Experience with Git (Bitbucket) for version control.

Familiarity with front-end technologies (Angular, CSS, HTML, JavaScript/TypeScript).

Experience working with payment gateways or merchant services.

Why Join Us?

Work-life balance: We encourage passion projects and personal growth.

Competitive salary & benefits: Full range of benefits and annual vacation stipend.

Flexible work environment: We are an in-office team and offer some work-from-home flexibility. We’re located in Midtown St. Louis at Cortex, in the CIC, a hub for innovation and collaboration.

Cutting-edge work: Shape the infrastructure of a growing fintech company.

“Work-life balance” isn’t just a buzzphrase: we actively encourage passion projects outside of work.

Our culture is casual and supportive, where everyone’s ideas and contributions are valued.

Expect an environment where your growth, both technical and personal, is a priority.

The Interview Process

Expect technical discussions about your expertise and past projects.

You’ll meet key team members to assess mutual fit.

We value curiosity, problem-solving skills, and teamwork.

We want to hire a strong engineer who enjoys both system administration and backend development. If that sounds like you, let’s talk!