Top Senior C# Jobs in Miami, FL

Build and maintain high-scale backend systems and APIs for a 24/7 sports betting platform. Deliver production-ready code, own services end-to-end, resolve production incidents, optimize performance, and mentor peers while collaborating with product and architecture teams.

As a Lead Software Engineer, you'll design and develop GenAI platforms, integrate LLMs, mentor engineers, and solve technical challenges for scalable solutions.

Own reliability, automation, and DevOps for Coinbase's corporate IAM platform: on-call/incident response, CI/CD and IaC pipelines, identity lifecycle tooling, observability and disaster recovery, documentation, and cross-team IAM advisement to ensure secure, scalable access for a global workforce.

The Staff Software Engineer will enhance video capabilities, support live streaming and storage infrastructure, and collaborate on platform development. Responsibilities include coding, mentoring, and ensuring platform reliability for millions of users.

The Sr. Software Engineer designs, implements, and maintains scalable cloud services, contributes to team processes, and acts as a subject matter expert while leading projects and mentoring others.

Design, build, and maintain scalable test automation frameworks and tooling (Playwright, C#, JS/TS). Integrate automated tests into CI/CD, develop end-to-end, integration, and performance tests, apply AI techniques for test generation and defect detection, troubleshoot system issues, mentor QA teams, and drive automation and quality engineering best practices.

The Senior Software Engineer will lead projects for the Forms platform, designing and building features across web, mobile, and backend systems while mentoring other engineers and improving platform scalability and reliability.

As a Senior Software Engineer, you'll develop and build tools for creative projects while leading feature development and collaborating with teammates.

Lead backend and full-stack work on the Payments team, building multi-gateway integrations (Stripe, PayPal), payment APIs, and customer payment UIs. Ensure secure, compliant (PCI-DSS) payment flows, reliability, observability, and scalability across AWS/Kubernetes microservices. Partner cross-functionally to design architecture, implement settlement/reconciliation, and maintain high availability.

Senior Software Engineer responsible for developing and maintaining web applications and microservices (React, Golang). Mentor team members, lead code reviews, influence technical decisions, improve CI/CD and testing strategies (unit, E2E, performance), collaborate across teams on integrations, and promote engineering best practices and documentation.

Design, implement, and improve significant features in HCSS products. Analyze product architecture and databases for ROI-driven improvements. Lead code reviews, mentor junior developers, collaborate to enhance infrastructure, reliability, and CI/CD practices.

Lead automation and systems development initiatives using Jira, BPM tools, and OutSystems. Oversee design, development, and deployment of .NET applications and AWS infrastructure. Collaborate with cross-functional teams to identify automation opportunities, ensure system performance and security, mentor developers, and manage project timelines and stakeholder communications.

The Market Data Engineer will design and implement high-performance market data systems, focusing on trading infrastructure, performance optimization, and system resiliency.

The Sr. GIS Lead Developer will develop and maintain GIS applications and tools, requiring extensive experience with multiple GIS technologies and programming languages.

The Salesforce Lead Developer will manage technology projects, guide developers, and ensure successful work completion using Salesforce and programming skills.

This role involves full stack development, mentoring junior developers, participating in agile practices, and leading cross-functional teams on software projects.

The Build Engineer / DevOps role involves implementing a delivery pipeline for applications, enhancing communication among teams, managing integrations, and overseeing CI/CD processes in a .NET environment.

Design, build, and maintain scalable backend services and gRPC APIs in Rust. Architect modular systems using Clean Architecture, CQRS, and event sourcing; implement actor-based concurrency, data access for relational/time-series/graph DBs, observability with Tracing/OpenTelemetry, and end-to-end testing. Collaborate in Agile teams, perform code reviews, communicate with clients, and operate services on Kubernetes when needed.

As an Enterprise Architect, you will lead architectural efforts across systems, promote data literacy, and collaborate with teams to modernize and implement scalable enterprise systems.

The Senior Technical Implementation Engineer leads integration projects using banking APIs, resolves complex technical issues, and mentors junior engineers while ensuring customer satisfaction through effective solutions.

Lead end-to-end full-stack development across React frontends and compiled backends, influence architecture and data modeling, integrate third-party dealership APIs, use AI-assisted coding tools daily, set engineering standards, ship production features to live dealership users, and mentor junior engineers.

Lead design and implementation of automated testing solutions using Playwright and TypeScript. Define automation standards, build scalable frameworks, create UI and API automation, integrate tests into CI/CD, and ensure software quality across enterprise applications.

Design, develop, customize and maintain enterprise Sitecore solutions (versions 9/10, SXA, JSS, XM Cloud). Produce technical specs, implement components, test and debug in test and production, support teammates, perform demos to customers, and escalate/resolve issues.

Create and optimize high-quality, mobile-optimized character shaders and material workflows in Unity URP. Develop master materials, tools, and editor extensions (C#). Profile and debug performance on iOS/Android, collaborate with artists on look development, and ensure efficient rendering across mobile devices.

Develop and maintain web-based applications using .NET/C#, JavaScript, HTML/CSS, SQL and Oracle/SQL Server. Perform root cause analysis, collaborate with teams for requirements, follow Agile SDLC, present change demonstrations, and use Azure DevOps/Jira for lifecycle management. Implement and maintain Blazor components.