> Markdown version of [/jobs/ext/499887-sr-software-engineer-payment-squad](https://www.wearedevelopers.com/jobs/ext/499887-sr-software-engineer-payment-squad). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr. Software Engineer (Payment Squad) - **Company:** Qu POS, Inc. - **Location:** United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Amazon Web Services, Confluence, JIRA, Microsoft Azure, Databases, Payment Systems, Python (Programming Language), NoSQL, PCI Data Security Standards, Performance Tuning, Cloud Services, Software Engineering, SQL Databases, Google Cloud, Backend, Containerization, Kubernetes, Atlassian Tools, Restful APIs, Microservices - **Published:** June 6, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=c4646817ad844c7a ## About the Role Do you have experience in System design?, * 5+ years of software engineering experience with a focus on backend systems. * Strong proficiency in Java, Go, or Python. * Experience with cloud platforms like AWS or Google Cloud. * Solid understanding of microservices architecture and RESTful APIs. * Deep understanding of payment flows, including authorization, tokenization, settlement, and reconciliation, within secure, distributed backend architecture. * Strong knowledge of Payment Card Industry (PCI) considerations and experience in designing systems for secure handling of sensitive financial data, consistency, and auditability. Desired Qualifications: * Previous experience in fintech or payments industry. * Knowledge of Kubernetes and containerization. * Familiarity with SQL and NoSQL database technologies. * Background in restaurant, retail, or POS ecosystems and familiarity with store group hierarchies, check data, or tag-based filtering. * Familiarity with Azure DevOps tools, in conjunction with the Atlassian product suite (Jira, Confluence, Rovo, etc.) ## Description Qu is looking for a Senior Software Engineer to join our Payments team. This role is central to building and maintaining high-performance, secure payment processing systems that power restaurant chains globally. You will work on scalable cloud services, ensuring reliability and security for millions of transactions. At Qu you will: * Design and develop scalable, secure, and reliable payment processing services. * Collaborate with cross-functional teams to integrate payment gateways and financial services. * Optimize system performance and troubleshoot complex issues in production environments. * Ensure PCI compliance and implement industry-standard security practices. ## Related Videos - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [APIs and Architecture for scaling omnichannel payments](https://www.wearedevelopers.com/videos/90-apis-and-architecture-for-scaling-omnichannel-payments) - [GitOps for the people](https://www.wearedevelopers.com/videos/815-gitops-for-the-people) - [Integrate your Cognitive Assistant with 3rd-party DBs and software](https://www.wearedevelopers.com/videos/249-integrate-your-cognitive-assistant-with-3rd-party-dbs-and-software) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Highest Paying Tech Companies in Europe](https://www.wearedevelopers.com/magazine/162-highest-paying-tech-companies-in-europe) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023)