Senior Backend Engineer

Job Description:

Job Title: Senior Backend Engineer – Azure GPT / .NET

Reports to: SVP, Head of Data, Technology & Analytics
Location: Remote – Global (must be available through 2 p.m. U.S. Eastern Time)
Employment Type: Full-time • Long-term Contract (Annual Renewal)

Key Responsibilities

Backend Engineering & API Integration

• Design, implement, and optimize .NET-based microservices and Azure Functions that operationalize GPT capabilities and connect with external ad tech APIs (e.g., Google Ads, Microsoft Advertising).
• Develop authenticated REST and GraphQL APIs using OAuth 2.0, Azure AD, and API Management.
• Implement advanced backend patterns including rate limiting, caching, batching, and streamed responses to handle high-throughput, low-latency workloads.
• Ensure long-term code maintainability, testability, and reusability, following best practices in TDD, async/await, and dependency injection.

DevOps & Observability

• Automate CI/CD pipelines using Azure DevOps or GitHub Actions.
• Manage and deploy infrastructure using Infrastructure as Code (IaC) tools like Bicep or Terraform.
• Monitor and debug production services with Application Insights, Log Analytics, and structured logging.
• Lead incident response, root cause analysis, and implement service health improvements.

Technical Leadership & Collaboration

• Take ownership of complex features and resolve key architectural challenges related to performance, security, and scalability.
• Work independently and proactively within a distributed team environment.
• Collaborate closely with product managers, frontend engineers, data scientists, and platform teams to align on technical and business goals.
• Mentor junior engineers, participate in knowledge sharing, and contribute to internal documentation and training.

Innovation & Continuous Improvement

• Drive innovation by integrating Azure OpenAI services using prompt engineering, embedding strategies, and cost-performance tuning.
• Stay informed about emerging backend technologies, AI capabilities, and DevSecOps practices.
• Follow and enforce internal release management and security standards.

Qualifications & Certifications

Education

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, Information Systems, or a related field.

Experience

• Minimum 7+ years of experience building and supporting production-grade backend systems in .NET/C#.
• Strong experience with Azure OpenAI Service, including prompt design, token management, and optimization.
• Proven experience integrating third-party APIs at scale and handling API security, throttling, and transformation logic.
• Proficiency with core Azure services: Azure Functions, API Management, Key Vault, Cosmos DB/SQL, Service Bus/Event Grid.
• Hands-on experience managing microservice architecture, asynchronous programming, and test-driven development.

Certifications

• Azure Developer Associate (AZ-204) or equivalent is a plus.

Key Skills

Mandatory Technical Skills

• Advanced proficiency in .NET 8 / C#, especially with async/await, DI, and unit testing frameworks.
• Experience designing secure, scalable APIs using OAuth 2.0, Azure AD, and API Management.
• Strong grasp of Azure OpenAI, prompt engineering, and AI integration patterns.
• CI/CD automation using Azure DevOps or GitHub Actions.
• Infrastructure management using Bicep or Terraform (IaC).
• Logging, tracing, and monitoring with Application Insights and Log Analytics.

Nice-to-Have Skills

• Docker and container orchestration experience with AKS or Azure Container Apps.
• Knowledge of DevSecOps, including IaC security scanning and secure SDLC.
• Background in MarTech or AdTech platforms and campaign data integration.
• Familiarity with GraphQL federation, schema stitching, or resolver optimization.

Soft Skills

• Excellent written and verbal communication skills in English.
• Strong problem-solving and critical thinking abilities with attention to detail.
• Proven ability to work independently and take ownership of deliverables.
• Comfortable with rapid context switching and managing evolving priorities.
• Passion for learning and mentoring others in a collaborative environment.

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