Senior Software Engineer

SPS Commerce is the world’s leading retail network, connecting trading partners around the globe to optimize supply chain operations for all retail partners. We support data-driven partnerships with innovative cloud technology, customer-obsessed service and accessible experts so our customers can focus on what they do best. To date, more than 120,000 companies in retail, grocery, distribution, supply, and logistics have chosen SPS as their retail network.

Our market-leading technology and customer focus have driven 95 consecutive quarters of revenue growth. As part of that growth, SPS Commerce is thrilled to be expanding our presence in Europe by adding a new location in Poland.  We're excited to add roles that deliver full-service excellence, drive innovation, and make a lasting impact. Join a dynamic, forward-thinking team transforming the global retail supply chain. If you're passionate about meaningful work in a collaborative environment, we’d love to hear from you!

Position Summary:   

We’re seeking a Senior Software Engineer to join a team that has a direct impact of the Product Development. You would join the Events Messaging team where you will be involved in the Architecture design and developing new features which increases the Performance, Scalability and stability of the Core Product. In this role, you will work on a core product that:  

• Handles thousands of requests per second  

• Processes millions of transactions  

• Operates with terabytes of data  

• Utilizes modern technologies (Kubernetes, Data Streams, the latest versions of Python and Go)  

You’ll have the opportunity to gain deep experience with AWS resources and work with highly loaded distributed systems. You’ll also play a key role in shaping design and implementation decisions that drive the product’s growth and success. Our team values knowledge sharing and collaboration, with regular deep-dive sessions and open discussions. We foster an environment where each team member can grow, contribute, and make meaningful decisions. 

Key Responsibilities: 

• Work with minimal supervision to implement complex methods and procedures within assigned problem domain  

• Own the development, test, and deployment for an entire product  

• Estimate new work with consideration and commitment  

• Identify and communicate risk, ambiguity, complexity, and dependencies  

• Share knowledge of technical skills, patterns, and practices with the rest of the team  

• Code review and mentorship of associates, intermediates, and other senior members on the team  

• Work with business partners outside of you team to explain and champion high-level technology approaches  

• Working predominantly on backend development with Asynchronous Python with some tasks related to frontend development 

Location:  

This is a hybrid role based in our Warsaw office

Required Qualifications: 

• Minimum of 5 years' experience in Python Development including a minimum experience of 2 years of Asynchronous Python Development.   

• Architecture experience 

• Experience with AWS (or other cloud provider infrastructure) services, particularly Lambda, Kinesis, S3, EC2, DynamoDB, and SQS. 

• Familiarity with distributed systems and event-driven architecture. 

• Experience in React and able to provide support for Angular-based applications.

Preferred Qualifications: 

• Experience with NoSQL databases, such as Elasticsearch. 

• Familiarity with relational databases like PostgreSQL or MySQL. 

• Experience working on high-load backend services. 

• Knowledge of Go programming.