Our .NET Core backend engineers build high-performance, secure, and maintainable server-side systems for finance, healthcare, retail, logistics, and enterprise software. We specialize in API design, microservices, EF Core optimization, Azure-native deployments, containerization, and observability to deliver scalable solutions that reduce time-to-market and operating costs for mission-critical applications.
Hire Senior .NET Core Backend Developers Fast
Staffenza delivers .NET Core backend development services for New York businesses and CTOs, providing pre-vetted developers who build scalable APIs and microservices, optimize EF Core and SQL, fix memory leaks, implement DI, caching and CI/CD, secure apps, migrate legacy ASP.NET to .NET, write unit tests, document systems, and deploy to Azure.

Scalable, Secure Back-End Solutions For Enterprises
Rapidly Scale Backend Talent With Expert Match
Staffenza connects enterprises with pre-vetted .NET Core backend developers and managed teams that are screened for practical experience in C#, ASP.NET Core, EF Core, microservices, and cloud-native tooling. We match candidates to industry-specific needsβfintech security, healthcare privacy, retail scalabilityβusing AI-powered skill mapping, verified work histories, and technical assessments to ensure technical fit and cultural alignment.
Our onboarding and compliance services accelerate time-to-value: deploy engineers in 7β21 days, leverage flexible engagement models, and rely on ongoing talent support, payroll and international compliance. Staffenzaβs talent marketplace reduces hiring risk, improves retention through continuous upskilling, and helps deliver secure, scalable backend systems faster and with predictable costs.
About Staffenza - Staffenza Connects Pre-Vetted .NET Core Backend Experts
Staffenza connects companies with pre-vetted .NET Core back-end developers skilled in building high-performance APIs, microservices, and data-driven systems across fintech, healthcare, e-commerce, logistics, insurance, telecom, automotive, manufacturing, and enterprise software. Our engineers excel in C#, ASP.NET Core, EF Core, SQL, Azure, Docker, CI/CD and secure coding practices β tackling performance bottlenecks, migrations from legacy .NET, resource management, and robust unit testing to ensure scalable, maintainable back-end platforms, with expertise in observability, monitoring, and cost-optimized cloud deployments.
We shorten time-to-hire with AI-driven matching and compliance-first hiring, delivering vetted talent in 7β21 days to accelerate time-to-market. Engage staff augmentation, dedicated teams, or managed services to optimize costs, reduce turnover, and gain architecture and DevOps expertise for long-term reliability, security, and measurable business outcomes.
- 10+ years Years of Combined Industry Experience
- 500+ Companies Hiring Smarter
- 1,000+ Pre-vetted Engineers Matched
- 4.3/5 Average Client Satisfaction Rating

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Our Trust Score: 4.3 from 115 Reviews"
Hire .NET Core Developersor+971 504 344 675Staffenza connects organizations with experienced .NET Core back-end engineers who build secure, high-performance server-side systems for finance, healthcare, retail, logistics, insurance, telecom, automotive and manufacturing. Our developers design APIs, microservices, and data platforms using C#, ASP.NET Core, EF Core, SignalR and Azure while enforcing best practices for security, testing and scalability.
We solve migration, refactoring, CI/CD and containerization challenges, deliver documented solutions across the SDLC, and deploy vetted talent in 7 to 21 days with flexible engagement models to reduce hiring risk and accelerate time-to-market.
Performance Optimization & Scalability
Experts in profiling, memory management, and throughput tuning. We analyze hot paths, fix memory leaks, optimize async code and efficient EF Core queries, introduce caching and batching patterns, and design resilient architectures that handle burst traffic and reduce latency while lowering operational costs and improving user experience.
Cloud and Azure-Native Development
Design and implement cloud-native back-end systems on Azure including App Services, Functions, AKS, Service Bus and Cosmos DB. We migrate workloads, optimize cloud costs, implement autoscaling, secure identities with Managed Identities and Azure AD, and build observability with Application Insights and Log Analytics.
Security for Regulated Industries
Secure development practices tailored for finance and healthcare: threat modeling, OWASP hardening, secure authentication and authorization, encryption at rest and transit, audit logging, and regulatory compliance support for PCI, HIPAA and GDPR. We implement role-based access, secrets management, and automated security testing.
Microservices, APIs and Integration
Architect microservices with bounded contexts, resilient communication patterns, API gateways, and versioned REST/GraphQL endpoints. We handle integration with legacy systems via adapters, ensure contract testing, implement service discovery, and provide scalable event-driven solutions for real-time requirements.
Data Access and EF Core Tuning
Specialists in data modeling, EF Core performance tuning, query optimization, migrations and transactional integrity. We use raw SQL, Dapper where needed, implement efficient loading strategies, proper AsNoTracking usage, indexing guidance and data partitioning to deliver predictable, low-latency data access for high-volume applications.
DevOps, CI/CD and Containerization
Implement automated pipelines, containerize .NET apps with Docker, orchestrate with Kubernetes, and integrate CI/CD using Azure DevOps, GitHub Actions or Jenkins. We enable automated testing, blue-green or canary deployments, infrastructure as code, and monitoring to ensure reliable, repeatable releases and faster feedback loops.
Legacy Migration and Modernization
Plan and execute migrations from legacy .NET Framework and monoliths to modern .NET Core architectures. We perform code audits, create refactoring roadmaps, incrementally extract services, modernize data layers, introduce tests and CI/CD, and reduce technical debt while preserving business continuity and minimizing disruption.
Industry We Serve For .NET Core Developers
Staffenza connects companies with senior .NET Core Back-End developers who design, build, and optimize high-performance server-side systems across finance, healthcare, retail, logistics, insurance, telecom, automotive, manufacturing, and enterprise software. Our pre-vetted talent handles API and microservices design, Entity Framework Core optimization, asynchronous architecture, caching, secure authentication and authorization, cloud-native Azure deployments, containerization with Docker, CI/CD pipelines, and migration from legacy .NET Framework to modern .NET.
We offer flexible engagement models: staff augmentation, dedicated teams, RPO, and EOR so you scale fast with compliance and clear SLAs. By combining AI-driven matching with proven experience, Staffenza reduces time-to-hire to 7-21 days, minimizes performance and security risks, and accelerates time-to-market. Our developers deliver end-to-end value across the SDLC, including architecture, coding, testing, documentation, and ongoing support to produce resilient, maintainable back-end platforms.

Hire .NET Core Developers in 3 Steps
Staffenza connects firms with pre-vetted .NET Core backend developers skilled in high-performance APIs, microservices, EF Core and Azure to serve finance, healthcare, retail, logistics and enterprise needs.
We match fast, ensure compliance, and provide ongoing support to scale teams and optimize application performance.
5 Reasons Why Choose .NET Core Developers With Staffenza
Staffenza connects you with vetted .NET Core backend developers skilled in C#, ASP.NET Core, EF Core, microservices, Azure and Docker. We deliver scalable, high-performance teams for finance, healthcare, e-commerce and enterprise systems quickly and compliantly.
1. Global Reach, Local Expertise
Access .NET Core talent across North America, Europe, APAC and emerging markets with local compliance and payroll support.
2. Rapid Deployment
Deploy senior backend developers in 7 to 21 days to accelerate delivery and reduce time to market.
3. AI-Powered Matchmaking
Our AI matches technical skills, cultural fit and growth potential, improving team retention and productivity.
4. Industry-Focused Talent
Specialists for finance, healthcare, e-commerce, logistics, insurance and enterprise systems with strong security and performance practices.
5. End-to-End Support
From onboarding, payroll and EOR to continuous performance management and technical support throughout the SDLC.
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Ready to Hire .NET Core Developers?
Vetted .NET Core back-end engineers building secure, high-performance APIs for finance, healthcare, retail, logistics and enterprise apps.
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FAQ: Hire .NET Core Developers
1. What responsibilities do .NET Core backend developers handle?
They build server side logic and RESTful APIs. They design data models and optimize database queries using EF Core and SQL. They implement authentication, authorization, input validation, and secure data storage. They write unit and integration tests, set up CI/CD pipelines, monitor performance, and produce API documentation. They work with product, frontend, and operations teams to deploy and maintain services.
2. Which industries hire .NET Core backend developers most often?
Finance, healthcare, retail and e-commerce, logistics, insurance, telecommunications, automotive, manufacturing, and enterprise software hire backend .NET Core developers. Typical projects include core banking and payment systems, EHR and patient management, e-commerce APIs and POS integrations, shipment tracking, claims automation, network services, telematics, and factory automation.
3. How do you assess technical skills when hiring .NET Core backend developers?
Use hands on coding tests and take home assignments focused on C#, ASP.NET Core, Entity Framework, and API design. Include a system design exercise covering scaling, caching, and fault tolerance. Require unit tests and a debugging or profiling task. Validate cloud skills with an Azure lab and review past project code and architecture diagrams during interviews.
4. How do .NET Core backend developers improve application performance and scalability?
Optimize data access and query patterns. Use EF Core features like AsNoTracking for read scenarios and add proper indexes at the database level. Cache hot data with Redis and apply connection pooling and async request handling to reduce latency. Offload long running work to background workers. Containerize services and scale horizontally. Measure performance with dotTrace, PerfView, and application metrics, then tune based on real monitoring data.
5. What security practices should backend .NET Core developers follow?
Validate and sanitize all input. Use parameterized queries or EF Core to prevent SQL injection. Implement authentication and authorization with OpenID Connect or OAuth and enforce role based access control. Protect secrets with Azure Key Vault. Enforce HTTPS and TLS and encrypt sensitive data at rest. Apply rate limiting and anomaly logging, run static analysis, keep dependencies up to date, and follow OWASP recommendations for web applications.
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