Senior Back-End Engineer

We are looking for a full-time, remote Senior Back-End Engineer with 5+ years of experience. The role focuses on designing and building the secure, scalable API and service integrations that connect SaaS products, data warehouse, and embedded analytics ecosystem. This role acts as the bridge between the application stack and the data platform, ensuring that analytics, reporting, and automation capabilities are seamlessly exposed to both internal systems and customer-facing applications. The ideal candidate is a backend engineer experienced with modern frameworks (PHP, Node.js, or Python), API design, multi-tenant authentication (Auth0/SSO), and data service abstractions. They combine strong engineering fundamentals with a deep appreciation for performance, security, and maintainability. Our client provides integrated software and marketing solutions for the hospitality industry, specializing in short-term rental management. Their platform provides vacation rental companies with an enterprise-class Property Management System integrating booking, guest communications, and financial reporting systems - all built with partner organization integrations in mind. Responsibilities Design and implement RESTful and GraphQL APIs that expose warehouse and reporting data to SaaS applications and third-party systems Develop scalable, tenant-aware service layers that abstract complex Redshift or Snowflake queries behind stable, versioned interfaces Build secure integrations between the SaaS application and analytics systems (QuickSight embedding, SSO/role propagation, etc.) Ensure multi-tenant context propagation and data isolation across all API endpoints Work with the Data Platform and Analytics teams to define reusable data-access abstractions Collaborate with the Data Platform Architect to design backend patterns supporting large-scale, automated reporting workloads Implement caching, pagination, and batching strategies for high-volume, concurrent analytics requests Monitor API latency and database query efficiency, applying indexing and optimization where necessary Contribute to system design documentation, endpoint versioning, and architecture diagrams Integrate SSO and identity management (Auth0, Cognito, or OIDC) into all service endpoints Enforce least-privilege data access and row-level security (RLS) through token or role propagation Ensure compliance with PII and data governance policies, encryption standards, and audit logging Collaborate with InfoSec and Compliance teams to perform code reviews and security assessments Work with DevOps to deploy and scale backend services via Docker, ECS, or EKS pipelines Implement CI/CD automation for service deployment, schema migrations, and integration tests Contribute to infrastructure-as-code definitions (Terraform or CloudFormation) Support observability and monitoring via CloudWatch, Datadog, or OpenTelemetry Partner with Analytics Engineers and Data Platform teams to ensure APIs align with data contracts and warehouse schemas Collaborate with Product Managers to define API requirements and roadmap priorities Participate in technical design reviews, security audits, and postmortems Continuously improve service performance, reliability, and developer experience Required Experience Excellent English communication skills 5+ years of backend or integration engineering experience in a modern web stack Proficiency in PHP (Laminas, Symfony, Laravel), Node.js, or Python for backend service development Experience designing and maintaining RESTful and GraphQL APIs at scale Hands-on experience integrating data warehouse APIs (Redshift, Snowflake) or analytics services (QuickSight, Tableau, Power BI) Solid understanding of multi-tenant authentication and authorization (SSO, OAuth2, OpenID Connect) Familiarity with AWS services including Lambda, API Gateway, ECS/EKS, and CloudFormation Strong knowledge of SQL and data-access patterns, including query optimization and caching Proven experience implementing CI/CD pipelines, monitoring, and API observability Desired Experience Bachelor's degree in Computer Science or some type of technical engineering Experience with embedded analytics frameworks (AWS QuickSight Embedding SDK, Looker Embed, etc.) Familiarity with multi-tenant SaaS architectures (tenant isolation, provisioning, and lifecycle automation) Knowledge of GraphQL federation, caching layers (Redis), and event-driven designs Experience in data-driven SaaS products (hospitality, property management, or fintech a plus) Exposure to data governance, lineage, and API auditing practices Additional Information Knowing your ideas are heard and matter think big You get to own your job and be recognized for your contributions Work with smart and creative people Making mistakes is human. Lets learn from them. Be transparent We recognize you as an individual no presumptions or judgment. Be the extraordinary you15 days Paid Time Off (PTO), 1 floating day, 3 sick days, and designated national holidays Start: ASAP About Velozient We are a privately held, nearshore software development company providing outsourced development resources to North American companies. Our mission is to offer development talent that enjoy taking on challenging work, want to grow their skills and experiences building software, and excel in a fast-paced, dynamic team environment. We are focused on providing world-class remote resources to work as valued client team members. If this type of opportunity excites you, then consider joining our team