• Own and drive business-critical product areas including scorekeeping, fan experiences, and team management throughout our backend services. • Design, build, and operate scalable, high-performance backend services in production. • Lead projects and work with Product, Design, QA and other engineers to understand requirements and translate them into technical solutions. • Evolve our APIs and service contracts to ensure performant, reliable communication between backend systems and client applications. • Contribute to architectural decisions that guarantee scalability, maintainability, and developer productivity as our backend systems evolve. • Identify and address performance bottlenecks, improve system reliability, and deliver high-impact new features in data-intensive domains. • Ensure security, data integrity, and privacy compliance. • Raise the technical bar through thoughtful code reviews, design feedback, and knowledge sharing. • Create and maintain clear technical documentation to support long-term maintainability and cross-team understanding.

This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more. Role Description As a Senior Engineer, you will own the technical health and architectural evolution of mission-critical Java backends. You will act as the primary anchor for complex 3-tier architectures and SQL databases, orchestrating high-performance API integrations and modernizing system workflows. This role requires an autonomous mindset to navigate diverse codebases, provide clarity through documentation, and drive technical excellence across the delivery lifecycle. Your success is measured by system reliability, the proactive management of technical debt, and your ability to mentor and elevate the engineering team. - Lead the development of robust Java architectures, ensuring high performance, security, and scalability. - Design and evolve seamless RESTful integrations to automate and streamline enterprise workflows. - Manage SQL environments, focusing on schema design, query optimization, and performance tuning. - Elevate team output through deep code reviews, technical mentorship of mid-level and junior engineers, and clear communication with stakeholders. - Proactively identify technical debt, reverse-engineer complex logic, and implement modern methodologies to improve efficiency. Qualifications - 5+ years of dedicated backend development experience. - Advanced proficiency in Java and the Spring ecosystem (Spring Boot, Spring Cloud, Hibernate). - Strong experience in SQL database management, complex stored procedures, and performance tuning. - Deep understanding of CI/CD, Git, and cloud-native environments (Azure or AWS). - Proven experience with microservices or distributed 3-tier architectures. - Advanced English proficiency (written and verbal) for collaboration with US-based clients. - Mandatory experience in nearshore/offshore client-facing startup cultures. Benefits - USA Contractor / 100% Remote - Competitive Pay (USD) - Holidays Off & Paid Time Off - Health insurance assistance program - Opportunity to work with high-growth US-based companies and cutting-edge tech stacks.

• Develop and maintain full REST APIs in C#/.NET 6+ using Entity Framework Core. • Implement and integrate payment flow solutions based on ISO 8583 messaging. • Ensure application and integration security using digital certificates and OAuth2. • Automate build, testing and deployment with Docker, Kubernetes and CI/CD pipelines. • Apply TDD and conduct integration and load testing to ensure performance and stability.

• Administer and optimize Kong Gateway (routes, services, plugins, certificates, rate limiting, logging). • Build and extend Kong plugins and manage Kong in Kubernetes (Helm/operator patterns, upgrades, config promotion). • Define API standards, review API designs, and manage OpenAPI (OAS) contracts, versioning, and governance. • Implement authentication and security patterns (JWT, claims mapping, key rotation, AD/LDAP integration). • Build and operate Kubernetes resources; manage AWS networking, compute, load balancing, DNS, and secrets. • Implement CI/CD and GitOps workflows, automated validation, and environment promotion. • Deliver observability: API metering, dashboards, logs/metrics/traces, SLO reporting. • Troubleshoot Linux/container issues and support on-call operations with runbooks and documentation.