This position requires fluent English - do not apply with a non-English profile/resume as it will be automatically filtered.Position Overview  We are seeking a Senior C#/.NET Developer with deep database ownership experience to join our growing engineering team. This role is intentionally hybrid: you will design and build software while also owning the reliability, performance, scalability, and cost management of our SQL databases .This position is ideal for a senior engineer who is database-centric but not database-only —someone who enjoys writing production code, building features that interact heavily with data, and taking responsibility for how the database performs in real-world, high-availability environments.You will work across application code, database architecture, and Azure infrastructure, partnering closely with product and engineering leadership to deliver scalable, reliable systems.Key Responsibilities  Database Architecture, Performance & Ownership  Design, evolve, and optimize  database schemas, indexes, queries, and stored procedures to support high-performance application workloads Own  database performance tuning , query optimization, and capacity planning across environments Manage  availability, backup/restore, disaster recovery, and survivability strategies in Azure SQL Monitor and proactively address  performance bottlenecks, deadlocks, blocking, and resource contention  Own  database cost management in Azure, including sizing, scaling strategies, and cost optimization Ensure  data integrity, security, and operational excellence throughout the application lifecycle Software Development & Feature Delivery  Design, develop, and maintain enterprise-grade applications and services using C# and .NETBuild application features that interact deeply with the database , balancing correctness, performance, and maintainabilityDevelop and maintain RESTful APIs and backend services that integrate with internal and third-party systemsParticipate in architectural discussions and influence technical direction across the stackPerform code reviews and mentor team members on best practices in both application and database developmentTroubleshoot and resolve complex issues across application, database, and infrastructure layersAzure Cloud & DevOps  Design and operate solutions using Microsoft Azure , with a focus on reliability and observabilitySupport CI/CD pipelines and deployment practices using Azure DevOpsWork with monitoring, logging, and alerting to ensure system health and rapid issue resolutionCollaborate on infrastructure decisions that impact scalability, performance, and costRequired Qualifications  Experience & Education  Bachelor's degree in Computer Science, Software Engineering, or equivalent experience7+ years of professional experience in C#/.NET software developmentStrong written and spoken English (C1 or C2 proficiency)Technical Skills (Priority Order)  Strong SQL Server / Azure SQL expertise , including:Advanced T-SQLStored procedures and query optimizationIndexing strategies and execution plan analysisPerformance tuning and troubleshootingProven experience owning database operations , including:Backup, restore, high availability, and disaster recoveryPerformance monitoring and scalingCost and capacity management in Azure Expert-level proficiency in  C#, .NET Core, and .NET Framework  Experience building and maintaining  RESTful APIs  Experience with  Microsoft Azure services , including App Services, Functions, and StorageFront-end experience with  Angular (7–17)  Familiarity with  Agile/Scrum development methodologies Proficiency with  Git and Azure DevOps  Soft Skills  Excellent communication skills, with the ability to explain complex technical topicsStrong analytical and problem-solving abilitiesAbility to work independently and take ownership of critical systemsHigh attention to detail and commitment to quality and reliabilityCollaborative mindset with experience working in cross-functional, distributed teamsBonus Points  Microsoft Azure certifications (Developer Associate, Solutions Architect, or similar) Experience with  Plivo or Twilio  Experience with  message-based systems (Azure Service Bus, RabbitMQ, etc.) Strong understanding of  DevOps practices and production operations Experience working in  HIPAA-regulated environments  Prior team lead experienceWhat We Offer  Competitive salary commensurate with experienceOpportunity to own critical systems and influence architectural decisionsA collaborative engineering culture that values quality, accountability, and continuous improvement