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Senior backend-focused engineer responsible for designing and delivering features in Go and React, building scalable distributed architectures, mentoring teammates, coordinating with product and business stakeholders, instrumenting production systems, and leading small teams to ship high-quality APIs and services.

The Software Engineer II role involves designing, developing, and maintaining innovative product features, collaborating on architectural discussions, mentoring peers, and delivering scalable solutions.

Seeking a Software Engineer II to design, develop, and deliver product features, mentor team members, and collaborate across teams in a dynamic environment.

As a Senior Software Engineer, you'll design and develop software applications in a fast-paced environment, mentor teammates, and improve internal and external products.

Investigate and resolve card and ACH disputes, collaborate with fraud and disputes teams, analyze transaction data and trends, maintain SLAs, handle escalations, and recommend process improvements to reduce losses and scale chargeback operations.

Build and operate Sezzle's NIST-based privacy program: implement enterprise data mapping, PIAs/privacy risk assessments, privacy review intake, consumer rights automation, and de-identification standards. Embed privacy-by-design with Product and Engineering, run cross-functional governance and reporting, and collaborate with InfoSec on incidents and cross-border data transfer risks to enable compliant, data-driven product development in the US and Canada.

Investigate and respond to card and ACH disputes, analyze transaction data and trends, collaborate with fraud and disputes teams, maintain SLAs, handle escalations, and recommend process improvements to reduce losses and scale chargeback operations.

Lead design and operation of Sezzle's enterprise privacy program (NIST Privacy Framework). Build and maintain data inventory and data maps, run PIAs/privacy risk assessments and privacy review process, operationalize de-identification standards, manage consumer rights fulfillment, embed privacy-by-design with Product and Engineering, govern cross-functional privacy cadence, and support incident response and executive reporting across US and Canada.

Build and own a new government payments vertical by identifying, developing, and closing partnerships with payment processors, platforms, and private-sector providers. Define go-to-market strategy, manage full sales cycle, represent Sezzle externally, and translate market feedback into product, legal, and operational recommendations to scale integrations and partnerships.

Originates and closes strategic CPG partnerships to deliver brand-funded offers, discounts, cashback, and shopper marketing programs. Builds executive relationships, negotiates seven-figure deals, drives a multi-year pipeline, represents Sezzle at industry events, and collaborates cross-functionally on product, data, marketing, legal, and finance to measure ROI and scale repeatable playbooks.