Top Senior C# Jobs in Miami, FL

Develop and enhance globally scalable software using .NET, Azure, React, SQL, and RESTful APIs. Implement internationalization for currencies, numbers, time zones, calendars, pluralization, and RTL layouts. Build automated tests, improve infrastructure reliability, participate in agile ceremonies, lead code reviews, and mentor junior developers.

The Senior Site Reliability Engineer maintains resilient, observable SaaS platforms through monitoring, alerting, automation, CI/CD, infrastructure as code, and performance optimization. The role leads incident response, triage, root-cause analysis, and 24/7 on-call operations while applying AI/AIOps for predictive reliability and automated remediation. Responsibilities include supporting cloud infrastructure, Kubernetes environments, production security, database performance, SLOs, SLAs, and continuous improvements in collaboration with software engineering teams.

Leads architecture and development of scalable healthcare applications and distributed systems. Provides technical leadership and mentorship, collaborates with Product and Design, manages software delivery, improves testing and CI/CD, resolves complex technical issues, and oversees cloud infrastructure, databases, deployment pipelines, and production monitoring. Requires hands-on full-stack engineering expertise, cloud and containerization experience, and participation in periodic on-call escalation coverage.

Leads BECU’s API platform strategy, engineering and delivery teams, technology roadmaps, governance, budgeting, vendor partnerships, and agile execution. Oversees scalable, secure APIs using C#/.NET on Azure, GraphQL, and REST; advances API lifecycle standards, CI/CD, quality, security, observability, and cloud-native practices. Builds high-performing teams through coaching, supports modernization initiatives, aligns technology with business goals, and promotes responsible AI-enabled engineering tools.

Lead architecture and write production full-stack code for an AI-powered supply chain platform. Own ABP application architecture, technical design, .NET standards, reliability, performance, observability, security, and major framework upgrades. Deliver features using C#, ASP.NET Core, Angular, and TypeScript while mentoring engineers and coordinating technical priorities with engineering and product leadership. The role supports AWS GovCloud and regulated government environments and requires eligibility for US security clearance.

Develop and improve open-source software through feature implementation, debugging, refactoring, performance optimization, code validation, and technical documentation. Engineers will navigate complex codebases, apply algorithms and competitive programming techniques, review code, and collaborate remotely on AI training projects. The role requires expert proficiency in at least two programming languages and strong independent problem-solving skills. This is a fully remote, project-based independent contractor opportunity with output-based compensation.

Lead architecture and write production full-stack code for an AI-powered supply chain platform. Own ABP application architecture, technical design, .NET standards, security, reliability, performance, observability, upgrades, and technology selection. Develop with C#, ASP.NET Core, EF Core, PostgreSQL, Angular, and TypeScript while collaborating with engineering and product leadership. The role also involves mentoring, technical delivery across teams, and building secure systems for AWS GovCloud and government customers.

Develop and modernize secure investor portal backend services using C#/.NET and AWS. Design REST APIs, process data, integrate with browser applications, migrate legacy systems, and replace SQL Server dependencies. Maintain Docker-based CI/CD infrastructure with GitLab Runner, Jenkins, and Terraform. Implement observability, automated testing, peer reviews, and troubleshooting while collaborating with frontend engineering, QA, and application support teams.

Develop and maintain Windows-based client and server applications using C# and .NET. Translate high-level requirements into detailed software requirements, implement maintainable production code, and perform comprehensive automated testing. The role uses WPF, Entity Framework, SQL, WCF, REST services, Visual Studio, Git, and Jira, with opportunities to support modernization using Azure, modern .NET, Docker, and cloud security technologies.

Own and improve Dropbox’s Windows endpoint platform, including provisioning, application delivery, patching, compliance, security configuration, troubleshooting, fleet health, and automation. Build code-managed endpoint operations using Intune, FleetDM, osquery, infrastructure-as-code, and GitOps practices. Lead cross-functional improvements, establish reliable deployment workflows, mentor engineers, review code and designs, and document reusable operational practices.

Provides principal-level technical leadership for scalable learning and skilling platforms. Designs architectures, writes and reviews production software, leads full software lifecycles, and applies Azure, AI, Copilot, Power Platform, and custom solutions. Responsibilities include secure integrations, CI/CD, infrastructure as code, testing, observability, production support, Responsible AI, reusable components, cross-team technical alignment, and engineering mentorship.

Own the technical content workflow for game designers, connecting authoring tools, engines, and infrastructure. Define data architectures, schemas, templates, validation, standards, and scalable delivery pipelines. Translate designer needs into tooling requirements, measure and improve iteration speed and content quality, lead workflow investments, and mentor technical designers. Partner cross-functionally across engineering, tools, art, UX, QA, and live operations to support efficient content creation for large live-operated games.

Design, develop, test, and deliver enterprise applications, APIs, services, integrations, and web applications. Own projects from technical design through production release, troubleshoot complex issues across systems and cloud environments, participate in architecture and code reviews, support CI/CD and releases, document solutions, and collaborate with Product, QA, Architecture, and engineering teams.

Lead the design and evolution of cloud-native platforms, distributed systems, and infrastructure services at large scale. Define architecture across compute, networking, storage, datacenter, and AI infrastructure environments. Improve automation, lifecycle management, observability, reliability, security, and developer productivity. Guide technical strategy across engineering organizations while contributing to GPU, HPC, bare-metal, networking, and distributed computing platforms. Mentor engineers and foster technical excellence through architecture reviews and cross-organizational collaboration.

Design and build distributed services for Azure Storage deployment orchestration and the Armada platform. Develop automated deployment workflows with validation, rollout controls, failure recovery, and monitoring. Own technical designs, write secure and tested code, conduct reviews, diagnose production issues using telemetry, and improve reliability, scalability, and performance. Collaborate across teams, provide operational support, and apply AI tools responsibly throughout the software development lifecycle.

Develop and maintain secure C#/.NET applications, database integrations, APIs, and data migration solutions supporting VA healthcare modernization. Responsibilities include troubleshooting, testing, performance optimization, deployment, Agile collaboration, security validation, and exploring AI-assisted development and LLM integrations. The role requires collaboration with architects and multidisciplinary teams on interoperability and enterprise modernization initiatives.

Build and own end-to-end features for a new consumer marketplace connecting homeowners with vetted contractors. Responsibilities include developing mobile and web experiences, backend services, REST APIs, microservice architectures, geolocation matching, integrations with contractor tools, testing, and rapid product iteration. The role requires independent ownership, collaboration with product and design, and use of AI tools to accelerate development.

Design, develop, test, and support cloud-native software applications for employee benefits solutions. Collaborate with product stakeholders and customers, build REST APIs and web interfaces, apply test-driven and behavior-driven development, monitor live systems, respond to incidents, improve architecture and processes, and mentor peers. The role requires modern engineering practices involving microservices, event-driven systems, secure coding, CI/CD, and cloud technologies.

Design, develop, and maintain scalable backend services and APIs using Java or C#. Lead system design, testing, reliability improvements, CI/CD automation, incident resolution, documentation, and cross-team technical initiatives. Mentor engineers, conduct code reviews, troubleshoot complex production issues, and support secure, highly available PCI-compliant transaction systems. Preferred experience includes event-driven architecture, cloud-native technologies, card payments, mobile development, and production AI solutions.

Build and maintain C# and SQL data migration tooling, staging schemas, scripts, and cloud automation. Lead complex legal accounting migrations, troubleshoot databases and cloud servers, write custom SQL, and support migration analysts with technical guidance. Create client-facing documentation, map and validate data, enforce SOC 2 and data residency controls across AWS and Azure, and use AI coding tools to automate recurring work.

Develop and maintain full-stack enterprise applications, APIs, backend services, databases, integrations, and responsive interfaces. Lead Azure hosting, CI/CD pipelines, test automation, monitoring, security, and deployment practices. Integrate ERP, CRM, CPQ, MES, and related systems while automating business processes and improving reliability. Collaborate with analysts and QA to translate requirements into technical solutions, support releases, troubleshoot production issues, and perform root-cause analysis.

Designs, develops, tests, and supports web, mobile, and cloud applications across the full software development lifecycle. Leads moderately complex technical initiatives, develops APIs and integrations, troubleshoots production issues, participates in architecture decisions, and collaborates with Product, QA, DevOps, and business teams. Reviews code, mentors junior developers, supports deployments, and maintains technical documentation. The position is fully remote with up to 10% travel for occasional company gatherings.

Modernize a legacy pharmacy fulfillment platform using domain-driven design, bounded contexts, anti-corruption layers, facade patterns, and incremental strangler-fig migrations. Build full-stack .NET applications, develop modern front ends, write integration tests, and contribute to CI/CD, containerization, observability, and hybrid deployments. Collaborate with pharmacists and cross-functional teams, reason about on-premise compatibility and system boundaries, adopt AI-assisted development tools, and mentor engineers.

Leads the design and implementation of scalable, secure, cost-effective systems and integrations. Partners with stakeholders and development teams to define architecture, modernize legacy platforms, establish cloud and DevOps standards, and ensure compliance, performance, and security. The role evaluates vendors and SaaS solutions, documents architecture roadmaps, supports data migration, and protects customer PII across customer-facing and internal systems.

Serves as a full-stack Forward Deployed Engineer embedded with application teams to modernize enterprise applications on AWS. Leads re-platforming, microservices adoption, CI/CD, Terraform infrastructure, DevSecOps, and AI-assisted software development adoption. Provides consultative technical leadership, change management, mentoring, architectural guidance, and hands-on coding while feeding team challenges back to the central modernization organization.