Senior . Net Backend Software Engineer

Job Title:Senior . Net Backend Software Engineer

Client:Innovee/NYC MTA
Location:2 Broadway, New York, NY (Hybrid - 3 days on site or as needed)

Duration:Long Term

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 E-Citations 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.

Responsibilities:

• Design, develop, test, deploy, and support backend services and integrations for E-Citations.
• Build secure REST/SOAP APIs and integrations across iOS, .NET, enterprise, and legacy systems.
• Develop workflow automation, business rules, state-machine logic, and event-driven processing.
• 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.
• Troubleshoot complex defects and production issues, perform root-cause analysis, and implement durable fixes.
• Participate directly in sprint delivery, code reviews, testing, releases, and technical documentation.
• Support production releases and critical operational 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.
• Strong experience designing and developing cloud-native backend services and APIs.
• Experience with at least one major cloud platform: Azure, AWS, or GCP.
• 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.
• Strong experience with automated testing, logging, monitoring, distributed tracing, and production diagnostics.

Preferred Experience:

• Microsoft technology stack: .NET/ASP.NET Core, C#, Azure Functions, Azure SQL, Azure API Management.
• Mobile-to-backend integration, particularly iOS applications.
• Public-sector, public-safety, transportation, case-management, workflow-driven, or other mission-critical enterprise applications.
• CJIS or comparable security/compliance environments.
• Power BI or similar operational reporting and analytics platforms.
• Legacy system integration and modernization.
• High-volume transaction processing and near-real-time enterprise integration.

Qualifications, Additional Skills and Information:

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related discipline, or equivalent professional experience.
• Relevant Azure, AWS, security, or DevOps certifications are a plus.
• Backend Software Engineering (.NET / C#)
• Cloud Architecture & Development (Azure/AWS/GCP)
• REST API & Enterprise Systems Integration
• Workflow Automation & State-Machine Design
• Event-Driven Architecture & Messaging
• Data Modeling, SQL/NoSQL & Transaction Integrity
• Security, IAM, Authentication & Encryption
• ETL/ELT & Data Integration
• DevOps, CI/CD & Infrastructure-as-Code
• Production Troubleshooting & Performance Optimization
• Serverless & Containerized Application Development
• Secure File / Legacy Integration (SFTP, SOAP, PGP)
• Observability, Logging & Monitoring
• Mobile-to-Backend Integration, ideally iOS
• Automated Testing & Code Quality Practices
• Technical Documentation
• Agile Software Delivery & Code Reviews
• Public Safety / CJIS / Mission-Critical Systems

Other additional skills:

• Database Design – 6+ years of experience
• ETL (Extract, Transform, Load) – 6+ years of experience
• Azure – 6+ years of experience
• SQL Server – 6+ years of experience
• .NET Code Development – 6+ years of experience
• Cyber Security – 6+ years of experience
• Data Analysis – 6+ years of experience
• IT Architecture – 6+ years of experience
• Wireless/Mobile – 6+ years of experience