Senior Software Engineer

The salary range for this role is $4,600 - $7,500 USD per month (Gross in USD) 

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

About the Role: 

We are seeking a talented and motivated Senior Software Engineer who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement.

As a Senior Software Engineer with Sezzle, you will work with a highly-motivated team to tackle interesting and challenging problems across multiple areas of the organization. Your experience and guidance will help other members of the team level-up their own skills as well.

In this backend focused role, you will work closely with stakeholders from Product, Support and the business. You’ll also partner with other engineering teams to provide high-quality, scalable, and innovative solutions to internal and customer problems. Your day-to-day responsibilities will include designing, developing, and delivering new features, as well as unblocking and mentoring your teammates.

This role has both an internal and external focus, your contributions will make a meaningful difference in the day-to-day lives of your peers at Sezzle, enhancing their ability to support our business and customers, and you will have opportunities to take any feedback and iterate.

Key Role Responsibilities: 

• Design and implement software applications and features using Golang and React.
• Help build and evolve a distributed architecture—designing solutions that integrate cleanly into the broader ecosystem, remain consistent across services, and scale reliably as demand grows.
• Work closely with internal company stakeholders to design and deliver market-winning products.
• Develop, instrument, and monitor metrics that drive continuous improvement of existing products and systems.
• Deliver high-quality, testable software that adheres to engineering best practices, observability standards, and reporting requirements.
• When needed, lead small development teams to drive projects from inception to launch.
• Mentor engineering teammates to elevate their technical skill sets and support their career growth.

Minimum Requirements

• At least 5 years of full-stack software engineering experience.
• Experience ideating, proposing, and gaining consensus on technical direction.
• Experience building and serving REST APIs using Go and at least one other language (Java, Python, or similar).
• Experience working within distributed, cloud-based architectures—including patterns like transactional outboxes or queuing tools (RabbitMQ, SQS, Kafka).
• Strong infrastructure and backend engineering background, examples including:
• Deploying and operating services in production using containers, Kubernetes, ECS, or similar.
• Using a cache such as Redis in real systems (sessions, queues, rate-limiting, ephemeral state).
• BS in Computer Science or related field.
  
  

Preferred Knowledge & Skills

• Experience with SQL-based RDBMS through an ORM toolkit.
• Comfortable using observability platforms (Prometheus, New Relic, Datadog, etc.) to instrument systems for production monitoring and alerting.
• DevOps experience with modern CI/CD pipelines.
• Familiarity with containerized microservice architectures deployed on Kubernetes in AWS.
• Demonstrated history of delivering commercial APIs, web applications, and production services.
• A track record of shipping products to market and iterating based on user and stakeholder feedback.
• Experience with telephony and real-time communications systems, including:
• Building or supporting IVR (Interactive Voice Response) and ACD (Automatic Call Distribution) capabilities for call centers.
• Integrating with telecommunications/SIP providers or CPaaS platforms such as Twilio, Plivo, SignalWire, Synch, etc.
• Designing and operating media flows such as call routing, SIP signaling, or audio pipelines.
• Experience with WebRTC, audio/video media handling, recording pipelines, and transcription workflows.

About You: 

• You have relentlessly high standards - many people may think your standards are unreasonably high. You are continually raising the bar and driving those around you to deliver great results. You make sure that defects do not get sent down the line and that problems are fixed so they stay fixed.
• You’re not bound by convention - your success—and much of the fun—lies in developing new ways to do things
• You need action - speed matters in business. Many decisions and actions are reversible and do not need extensive study. We value calculated risk-taking.
• You earn trust - you listen attentively, speak candidly, and treat others respectfully.
• You have backbone; disagree, then commit - you can respectfully challenge decisions when you disagree, even when doing so is uncomfortable or exhausting. You have conviction and are tenacious. You do not compromise for the sake of social cohesion. Once a decision is determined, you commit wholly.
• You deliver results - you focus on the key inputs and deliver them with the right quality and in a timely fashion. Despite setbacks, you rise to the occasion and never settle.

Sezzle’s Technology Stack:

• Languages: Golang, Typescript, Python
• Frontend: Typescript - React and React Native
• Backend: Golang
• Database: MySQL, Postgres, Elasticsearch
• DevOps & Cloud: AWS, Kubernetes
• Version Control: Git
• CI/CD: Gitlab
• Testing: Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

What Makes Working at Sezzle Awesome? 

At Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators; we are skilled musicians, yogis, cyclists, chefs, golfers, dog-lovers, and rock-climbers. We believe in surrounding ourselves with not only the best and the brightest individuals, but those that are unique and purpose-driven in all that they do. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire. 

Equal Employment Opportunity: Sezzle Inc. is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, color, religion, sex, national origin, age, disability, genetic information, pregnancy, or any other legally protected status. Sezzle recognizes and values the importance of diversity and inclusion in enriching the employment experience of its employees and in supporting our mission.

Compensation:

For this senior development role, with 5+ years of experience, the compensation range is $4,600 - $7,500 USD per month. This range acknowledges the extensive expertise, leadership capabilities, and significant contributions expected at this level, offering a competitive salary to reflect the value of advanced skills and experience.

#Li-remote #Full-time