Senior Backend Software Engineer / Consultant

We are seeking a Senior Backend Software Engineer / Consultant to join a government Product & Engineering team supporting a mission-critical E-Citations application. The role is hands-on and responsible for designing, developing, integrating, testing, deploying, and supporting secure, scalable backend services., Design, develop, test, deploy, and support .NET/C# backend services and integrations. Build secure REST/SOAP APIs integrating iOS, enterprise, and legacy systems. Develop workflow automation, business rules, state-machine logic, and event-driven processing. Implement resilient real-time/near-real-time, messaging, SFTP, and batch integrations, including retry, idempotency, and deduplication. Develop and optimize SQL/NoSQL data models, ETL/ELT pipelines, audit logging, reporting, and performance. Implement OAuth 2.0, OIDC, JWT, RBAC/IAM, TLS, encryption, secrets management, and Secure SDLC practices. Support CI/CD, Infrastructure-as-Code, automated testing, logging, monitoring, observability, and production diagnostics. Troubleshoot complex production issues, perform root-cause analysis, and implement durable fixes. Participate in Agile sprints, code reviews, testing, releases, technical documentation, and occasional after-hours production support. Collaborate with Product, iOS, QA, infrastructure, cybersecurity, data, and enterprise integration teams.

5+ years of hands-on backend software engineering and enterprise application development. Strong expertise in C#, .NET, and ASP.NET Core. Strong cloud-native development experience with Azure, AWS, or GCP. Hands-on experience with serverless and containers, such as Azure Functions, AWS Lambda, Kubernetes/AKS, ECS/Fargate, GKE, or Cloud Run. Experience with event-driven/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 coding. Strong SQL Server/PostgreSQL and NoSQL experience, including data modeling, ETL/ELT, data warehousing, audit trails, and performance tuning. Experience with Azure DevOps, GitHub Actions, GitLab CI/CD, Terraform, ARM/Bicep, CloudFormation, or equivalent tools. Strong experience with automated testing, logging, monitoring, distributed tracing, and production troubleshooting. Ability to independently deliver complex, production-ready backend solutions. Bachelor’s degree in Computer Science, Software Engineering, IT, or related discipline, or equivalent professional experience. Preferred Qualifications Microsoft stack: .NET/ASP.NET Core, C#, Azure Functions, Azure SQL, Azure API Management. iOS-to-backend integration experience. Public-sector, public-safety, transportation, case-management, workflow-driven, or other mission-critical enterprise applications. CJIS or comparable security/compliance experience. Power BI or similar operational reporting/analytics experience. Legacy system integration and modernization. High-volume transaction processing and near-real-time enterprise integrations. Relevant Azure, AWS, security, or DevOps certifications. Core Competencies Backend Engineering | Cloud Architecture | REST/SOAP Integration | Workflow & State Machines | Event-Driven Architecture | SQL/NoSQL | ETL/ELT | Security & IAM | DevOps & CI/CD | Infrastructure-as-Code | Serverless & Containers | SFTP/PGP | Observability | Automated Testing | Production Support | Agile Delivery | Public Safety/CJIS Ideal candidates will have strong hands-on .NET engineering expertise combined with cloud, security, enterprise integration, data, and production-support experience in complex or mission-critical environments.