Top Senior C# Jobs in Miami, FL

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

Lead SRE efforts for DFIN SaaS: ensure availability, performance, scalability, and automation. Implement monitoring, CI/CD, IaC, container orchestration, AI-enhanced observability, incident response, RCA, and runbook automation while collaborating across engineering teams.

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

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.

Design and implement significant features, analyze product and database architecture for improvements, build RESTful APIs, enhance infrastructure and CI/CD, lead code reviews, mentor junior developers, and collaborate in agile ceremonies to improve reliability and efficiency.

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.

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.

Lead architecture and hands-on development of the end-to-end video pipeline (live ingest, transcoding, storage, playback, and developer SDKs). Mentor engineers, collaborate across mobile/web/ML/platform teams, own monitoring and on-call support, and help scale video streaming and VoD capabilities for millions of streams and clips.

Manage and grow the Video Enablement engineering team, own core video pipeline (ingest, transcode, storage, playback), enable third-party device integrations, collaborate on video roadmap, ensure scalable resilient AWS infrastructure, mentor engineers, contribute technically when needed, and support production incidents and cross-team enablement.

Design, build, and operate cloud-native, enterprise-grade SaaS services on Azure. Lead architecture and design, develop APIs and UIs, apply AI-enabled engineering tools, ensure observability, support production incidents, and drive reliability, performance, and CI/CD improvements across teams.

Lead and grow the AI Platform team to deliver shared AI/ML services, infrastructure, and tooling. Define platform vision with the architect, enforce standards for reliability, security, and observability, and collaborate with cross-functional teams to enable secure, self‑service developer capabilities.

Design, build, and maintain core LIMS software across the SDLC; own architecture, data management, business rules, and embedded control components; plan installations/upgrades, provide operational support, ensure compliance and documentation, and mentor junior engineers.

Lead design, customization, and administration of CRM and real-estate development systems; build integrations, APIs, dashboards, and reporting; ensure data integrity and security; support pre-construction sales, budgeting, scheduling, and construction tracking; oversee upgrades, migrations, documentation, and training; mentor junior staff and manage third-party consultants.

Build and optimize low-latency, high-throughput analytics for HFT environments. Implement financial research (execution cost models, order flow analytics), architect modular plugin systems, and perform HPC tuning (parallelization, memory layout, zero-GC) to power real-time microsecond-resolution trading diagnostics.

Build and optimize a low-latency, high-throughput analytics engine for HFT. Implement market-microstructure research, execution cost models, and order-flow analytics with HPC techniques and modular plugin-based architecture.

Lead and contribute hands-on to engineering across co-development game projects, providing technical direction, architecture reviews, debugging/profiling, cross-discipline collaboration, planning, and mentoring while ensuring code quality and performance.

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

Lead design and development of native Windows desktop applications. Define best practices and drive accessibility efforts while collaborating with cross-functional teams on feature planning and implementation.

The role involves leading a development team, managing project timelines, performing hands-on coding, and aligning technical efforts with business goals.

Designs, builds, and maintains integrations across Microsoft 365, the Power Platform, AI/Copilot, and line-of-business apps. Implements connectors, APIs, authentication patterns, and Copilot Studio agents; ensures security and compliance; drives adoption through documentation, training, monitoring, and iterative improvements; partners with Cloud Services, InfoSec, and business stakeholders.

Lead and develop engineering teams to deliver scalable, high-quality SaaS software. Balance people leadership and technical oversight, participate in architecture, enforce engineering best practices, manage delivery, observability, CI/CD, and cross-functional collaboration with Product, QA, and Ops.

Design, build, and maintain highly distributed Azure cloud infrastructure services. Deliver new features, ensure high reliability and performance, monitor and alert on system health, act as DRI, and participate in on-call diagnostics and remediation.

Design, build, and operate large-scale distributed host networking systems for Azure. Develop host agent services for network configuration, connectivity, and traffic orchestration; improve reliability, observability, and deployment safety; lead incident RCA and mentor engineers while driving architectural direction.

Lead and grow a software engineering team to design, build, and operate large-scale distributed cloud services that automate infrastructure maintenance, improve reliability, and support GPU-based AI platforms. Drive technical vision, partner across engineering and operations, modernize platforms, and use data-driven decisions to improve availability, performance, and operational efficiency at global scale.

Hands-on senior full stack engineer to design, code, review, and ship web front ends and backend APIs. Lead technical execution for a small team, define architecture and API contracts, integrate AI/LLM features (tool calling, prompt/control flow), support secure enterprise integrations, and mentor engineers through code review and pairing.