Senior Backend Software Engineer

This role is hybrid and no chance of 100% remote. 3 days on site or as needed. Must live in NY Metro Area

Position Overview: The Senior Backend Software Engineer / Consultant is a hands-on engineer responsible for developing, integrating, testing, deploying, and supporting backend services for the application. This role requires deep expertise in .NET, cloud-native development, secure APIs, workflow automation, enterprise integration, data engineering, and production support. The consultant will work directly within the Product and Engineering team to deliver secure, scalable, production-ready backend capabilities and resolve complex technical issues.

Key Responsibilities:

·       Build secure REST/SOAP APIs and integrations across iOS, .NET, enterprise, and legacy systems.

·       Build resilient real-time, near-real-time, messaging, SFTP, and batch integrations using retry, idempotency, and deduplication patterns.

·       Develop and optimize relational and NoSQL data models, ETL/ELT pipelines, audit logging, and reporting integrations.

·       Implement authentication, authorization, RBAC, encryption, secrets management, and secure coding practices.

·       Develop and support CI/CD pipelines, Infrastructure-as-Code, automated testing, logging, monitoring, and observability.

·       issues, including occasional evening or weekend support when required.

·       Collaborate closely with Product, iOS, QA, infrastructure, cybersecurity, data, and enterprise integration teams to deliver working solutions.

Required Skills

·       5+ years of hands-on backend software engineering and enterprise application development experience.

·       Strong expertise in C#, .NET, and ASP.NET Core.

·       Experience with at least one major cloud platform: Azure, AWS, or Google Cloud Platform.

·       Hands-on experience with serverless and container technologies, such as Azure Functions, AWS Lambda, Kubernetes/AKS, ECS/Fargate, GKE, or Cloud Run.

·       Strong experience with event-driven and workflow technologies, such as Durable Functions, Step Functions, Temporal, Kafka, Event Hub, Pub/Sub, SNS, or SQS.

·       Strong enterprise integration experience with REST, SOAP, API gateways, SFTP/PGP, message queues, polling, retry, idempotency, and deduplication.

·       Strong knowledge of OAuth 2.0, OIDC, JWT, RBAC/IAM, TLS, encryption, secrets management, and Secure SDLC practices.

·       Strong data engineering experience with SQL Server/PostgreSQL, NoSQL platforms, data modeling, ETL/ELT, data warehousing, audit trails, and performance tuning.

·       Experience with Azure DevOps, Azure Government, GitHub Actions, GitLab CI/CD, Terraform, ARM/Bicep, CloudFormation, or equivalent DevOps tooling.

Preferred Experience

·       Public-sector, public-safety, transportation, case-management, workflow-driven, or other mission-critical enterprise applications.

·       Power BI or similar operational reporting and analytics platforms.

High-volume transaction processing and near-real-time enterprise integration.