Senior Software Engineer (Poland)

PolandRemote

Responsibilities

Design software applications and features in Golang and React
Coordinate with internal company stakeholders to design market winning products
Develop and collect metrics to drive continuous improvement of existing products
Deliver high quality features which can be tested and adheres to reporting standards
As needed, lead small development teams to bring a project to market
Mentor other engineering teammates to help elevate their experience and knowledge

experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!
We are seeking a talented and motivated Senior Software Engineer who is best in class with a high IQ plus a high EQ.
Wonderlic test (30-40 min)
Experience bringing new ideas and building consensus on the path forward •
Experience with building and serving REST APIs using Go (preferably) and Java Python or a similar language. •
Experience working in a distributed, cloud-based architecture, with either design patterns like transactional outboxes, or queuing tools like RabbitMQ, SQS, Kafka Demonstrated
experience working with Claude or equivalent large language model tools is required; candidates must be comfortable leveraging AI to enhance productivity, research, and communication.
Bachelor's degree in Computer Science, Engineering, or a related technical field.
Experience with SQL based RDMS through an ORM tool
DevOps experience with CI/CD pipelines
Familiarity with containerized micro-service architecture deployed with Kubernetes on AWS
Demonstrated history of delivering commercial APIs and web applications
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

You earn trust - you listen attentively, speak candidly, and treat others respectfully.
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.

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
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.
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.