Software Engineer III (Senior)

We are seeking a Senior Software Engineer to design and deliver complex, multi-component features and systems. This role is ideal for an experienced engineer who can make thoughtful trade-offs between speed, scalability, and cost while building systems that hold up under real-world conditions. You will design with testing, observability, and failure modes in mind, collaborating with Product and QA to shape solutions before build begins.
Company Overview
At VersiTech, we go beyond the traditional boundaries of a tech company to provide payment and point-of-sale technologies that help businesses increase their profitability, run efficiently, and grow with confidence. We are innovators at heart, problem-solvers in action, and growth partners in spirit. In every solution we create and every service we offer, our ethos is clear: technology should be advanced, accessible, and easy to use. We have a passion for delivering technology-focused products and services that are built on speed, affordability, and reliability so that every business we serve enjoys a consistent experience with a trusted ally. Our two product lines, BOLD Integrated Payments and Tonic POS Software can be deployed together for a unified end-to-end experience or used independently for maximum flexibility.
Listening first, building lasting relationships, and delivering measurable outcomes for our partners and merchants are central to how we operate as an organization.
Who We Are
We operate under a rapidly growing and widely accepted business philosophy called “EOS” (Entrepreneurial Operating System). In learning to utilize EOS, you will have the ability to drive growth and be an empowered decision maker, something that you can’t get in large, slow-moving organizations.
As we grow, we are intentional about protecting our small-company spirit: staying agile, taking ownership, and maintaining strong relationships. We strive to live our values every day and in every way. We believe culture is built through the habits we practice: Value + Habit = Culture, and we are looking for others who feel the same way:

• We are ALL IN: We are committing wholeheartedly to a clear vision. Mission first and team always by: following through, owning outcomes, and finishing what we start for the success of ALL involved: our employees, our partners, our vendors, our communities, and our customers.
• We DARE TO BE DIFFERENT: We embrace our entrepreneurial DNA and small-company spirit as we scale, taking responsibility as first movers, simplifying the complex, and maintaining a culture of fun and approachability while prioritizing our partners and team members first.
• We are HUMAN: We are grounded in accountability and genuineness, we build strong relationships by listening to understand, communicating clearly, speaking truth with care, and respecting different perspectives with grace as we grow.

How will you make an impact in this role? As a Senior Software Engineer, you will be a technical leader on your team, mentoring other engineers and raising the bar for code quality and system design. You understand how to build systems that perform reliably under real usage and can anticipate problems before they occur. Product, QA, and fellow engineers will look to you for technical guidance and to help clarify complex problems before expensive mistakes are made.

Engineering is your functional home: it owns craft standards, architecture, tooling, the review bar, hiring, and performance reviews. Your pod owns your day-to-day work: sprint priorities, scope, dates, and assignment. You will be assigned to one pod and work in it full time. Which pods exist, how assignment and transfers work, and which functions serve across pods are set out in the Operating Model Reference appended to this description.

You will report to SVP of Technology, Edie Woelfle.

What will you be doing on a day-to-day basis?
System Design & Architecture

• Design and deliver multi-component features or services that solve complex business problems.
• Make informed trade-offs between speed, scalability, cost, and maintainability based on business context.
• Build systems with testing, observability, monitoring, and failure modes designed in from the start.
• Anticipate edge cases, performance bottlenecks, and operational challenges before they become production issues.
• Contribute to architectural decisions and technical direction for the product.

Technical Leadership & Mentorship

• Mentor junior and mid-level engineers through code reviews, pairing sessions, and design discussions.
• Set the standard for code quality, testing practices, and engineering excellence.
• Share knowledge and build documentation that helps the team level up.
• Lead by example in writing maintainable, well-tested, production-grade code.
• Help others grow their technical skills and understanding of system design.

Cross-Functional Collaboration

• Collaborate with Product and QA early in the development process to shape solutions before build.
• Ask clarifying questions that prevent late-stage surprises and requirement changes.
• Provide technical input on feasibility, complexity, and risk during planning.
• Surface dependencies that reach beyond your own team early enough to be managed.
• Communicate complex technical concepts clearly to non-technical audiences.

Delivery Excellence

• Deliver high-quality systems that require minimal rework or post-launch fixes.
• Build features that are maintainable, testable, and well-documented.
• Ensure your systems perform reliably under real-world usage and scale.
• Reduce technical debt through thoughtful design and pragmatic refactoring.
• Drive continuous improvement in team processes, tools, and practices.

You know you are successful when:

• Product changes direction less often because you clarified upfront.
• QA finds fewer late-stage or surprise issues.
• Other engineers seek your input before building.
• Your systems perform reliably under real usage.

Top Candidates will demonstrate the following:
Minimum Qualifications

• 5+ years of professional software development experience.
• Proven ability to design and deliver complex, multi-component systems that perform reliably in production.
• Deep technical expertise in backend development with a modern server-side framework.
• Strong understanding of distributed systems, databases, caching, and performance optimization.
• Experience making architectural trade-offs between scalability, speed, cost, and maintainability.
• Demonstrated ability to mentor and develop other engineers.
• Track record of collaborating with Product and QA to shape solutions early in the process.
• Excellent communication skills with ability to explain complex technical concepts clearly.
• Experience building systems with proper testing, observability, and failure handling.
• Based in the Sandy Springs area or willing to relocate, and able to work on site on a regular schedule.

Preferred Qualifications

• Deep hands-on experience building and operating production backend services at scale.
• Experience with modern frontend frameworks.
• Familiarity with cloud architecture patterns and managed services.
• Experience with distributed caching and performance tuning.
• Understanding of CI/CD practices and DevOps principles.
• Experience working in environments with technical debt and legacy systems.
• Track record of reducing operational incidents through thoughtful system design.
• Contributions to open source or technical writing/speaking.

The stack varies by pod. You will be told which pod you are being hired into during the hiring process.

This is a full time hybrid role based in Sandy Springs.

We stand behind our colleagues and loved ones with benefits and programs that support one another’s holistic well-being. That means we prioritize physical, financial, and mental health through each stage of life. VersiTech benefits include:

 

• Competitive base salaries
• Unlimited, flexible vacation policy (with manager approval), plus 7 major holidays
• Fully covered Employee-only coverage for medical, dental, and vision insurance; partial contribution for Employee+others coverage
• 401(k) program with available company match
• Robust supplemental insurance offerings - life insurance, disability benefit, & even discounts on pet insurance!
• Flexible Spending Account (FSA) and Health Savings Account (HSA) availability
• Marketplace Care Teams to provide emotional and spiritual support for our employees
• Employee Assistance Program, Caregiver Support Program, & an Adoption Assistance Program
• Career development and training opportunities

If you are the kind of person who serves with a people-first mentality, leans into a vision that people can get behind, and enjoys being a part of a fast-growing organization, we want to talk with you!

VersiTech, LLC is an equal opportunity employer and makes employment decisions without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran status, disability status, age, or any other status protected by law.
 
Employment eligibility in the U.S. is required, as VersiTech, LLC will not pursue visa sponsorship for this position.