[Remote] Senior Backend Engineer

Note: The job is a remote job and is open to candidates in USA. Usalco is seeking a Senior Backend Engineer responsible for designing, developing, and maintaining scalable backend systems and APIs. This role serves as a technical contributor within the IT organization and collaborates with various teams to deliver secure and reliable backend solutions.ResponsibilitiesDesign, develop, and maintain scalable backend services, APIs, and application logic that support enterprise systems, SaaS platforms, customer-facing digital applications, and AI-enabled application functionalityBuild and maintain secure, scalable, and well-documented RESTful APIs and backend integration services that support frontend applications, enterprise systems, customer environments, and AI service consumptionDesign, optimize, and maintain relational database structures, client-specific database configurations, queries, stored procedures, indexing strategies, and secure data access patterns to ensure high-performance, reliable, scalable, and maintainable application operations. Support ongoing client database upkeep, configuration management, and compatibility with customer-specific deployment models and application requirementsDevelop backend application services that support scalable SaaS application functionality, including customer-aware application logic, tenant-aware APIs, secure authentication patterns, and compatibility with customer-specific database deployment modelsImplement scalable business logic, validation layers, workflow automation, and backend services that support operational processes, customer experiences, and enterprise application functionalityCollaborate with AI Platform Engineering teams to integrate AI capabilities into backend services and customer-facing applications, including AI APIs, recommendation services, conversational interfaces, predictive workflows, and AI-assisted application functionalityCollaborate closely with Frontend Development, DevOps, AI Platform Engineering, Data Integrations, UI/UX, and Enterprise Systems teams to define backend standards, API contracts, integration patterns, security practices, and scalable backend development best practicesSkillsBachelor's degree in Computer Science, Software Engineering, Information Technology, or related field5+ years of experience in backend software engineering or full stack engineering roles with strong backend specializationDemonstrated experience building scalable backend systems, APIs, and application services in production environmentsStrong proficiency in backend development languages and frameworks such as Node.js, Python, .NET, or similar technologiesStrong proficiency in SQL, relational database design, stored procedures, indexing strategies, query optimization, secure data access patterns, Row-Level Security (RLS) concepts, and backend data modelingExperience building and maintaining REST APIs, backend integration services, and scalable backend application architecturesExperience supporting SaaS application functionality, customer-aware backend architectures, and tenant-aware application patternsFamiliarity with cloud-native backend development concepts, containerized application environments, and deployment-ready application design within Azure or similar cloud platformsFamiliarity with Infrastructure as Code (IaC), cloud-native backend development concepts, containerized application environments, and deployment-ready backend application design within Azure or similar cloud platformsUnderstanding of authentication, authorization, API security, encryption, and secure backend development practicesExperience collaborating with Frontend Development, DevOps, AI Platform Engineering, Data Integrations, and Enterprise Systems teams in cross-functional environmentsStrong analytical, systems-thinking, and problem-solving capabilitiesAbility to clearly communicate technical concepts and backend architectural decisions to both technical and non-technical stakeholdersAbility to work independently and collaboratively within cross-functional teamsWillingness to travel occasionally (approximately 10%)Experience implementing Row-Level Security (RLS), secure backend data access patterns, and customer-aware application security modelsExperience integrating AI capabilities into backend systems, APIs, and customer-facing digital platformsExperience with Azure SQL, Azure Functions, Service Bus, Event Grid, or related Azure application and integration servicesExperience designing scalable SaaS backend application architectures and distributed application patternsExperience with observability, logging, monitoring, and backend application performance toolingExperience mentoring engineers or providing technical leadership across backend development initiativesCompany OverviewUSALCO is a provider of high quality aluminum-based chemicals used primarily in water and wastewater treatment processes. It was founded in 1980, and is headquartered in Baltimore, Maryland, USA, with a workforce of 501-1000 employees. Its website is https://www.usalco.com/.