• Implement high-impact experiments and increase the throughput of the experimentation program to directly drive revenue • Support Kraken’s experimentation platform by enabling reliable exposure logging, metric collection, and experiment guardrails on the frontend • Partner with Data Engineering and Analytics to ensure experimental data aligns with canonical definitions and supports statistically sound analysis • Implement validation, monitoring, and alerting to proactively detect issues in experiment and product event data • Document and evangelize best practices for experimentation and analytics implementation, creating clear guidance for product and engineering teams • Collaborate with product teams to support experiment design needs, including metric feasibility, instrumentation tradeoffs, and implementation patterns • Improve and simplify event data flows to reduce redundancy, improve transparency, and lower long‑term maintenance costs • Contribute to the evolution of Kraken’s experimentation frameworks, enabling faster iteration while preserving analytical rigor

• Serve as an expert technical resource overseeing architectural design and implementation of software and technologies • Act as a hands-on leader of a small team of engineers • Contribute to high quality, testable software solutions used across the DCI Software product line • Serve as a technology leader, and be the final escalation point for production issues • Work with software development, QA, and DevOps teams to produce high quality technology solutions • Mentor less senior engineers as needed • Build modern, architecturally sound components, tools and applications to meet mission-driven strategic business goals • Infuse quality of service characteristics, such as scalability, manageability and maintainability, into distributed frameworks • Employ industry best practices to evaluate, correct and prevent vulnerabilities during the software development process • Encourage a culture of innovation and accountability while adhering to Agile best practices • Research and prototype new or alternative software solutions to improve quality • Assist in process development and enhancement in accordance with ITIL best practices • Support the positive compliant cybersecurity company posture

• Designing, building, and evolving public APIs used by external developers and partners • Improving the security, consistency, and usability of Smile’s API surface • Building and maintaining Ruby on Rails services that power integrations and developer tooling • Developing and evolving Smile’s JavaScript SDKs and frontend libraries • Crafting thoughtful developer experiences — from API ergonomics to documentation • Iterating on existing and building new in-house integrations • Partnering with internal teams to help solve for novel merchant use cases • Championing technical discussions, decisions, and trade-offs • Identifying opportunities to raise the bar in areas like architecture, performance, and security • Sharing context, feedback, and knowledge within and across teams

• Design, develop and maintain backend components using Java and Python • Work on Spring / Spring Boot based services and knowledge of Webservices (REST / SOAP) • Debug complex production issues and perform root cause analysis • Troubleshoot performance and support high priority production issues • Work with QA team for testing, verification and defect closure • Work with Support team to analyze live customer/production issues and drive resolution • Participate in Agile/Scrum ceremonies and deliver tasks in sprint cycles