Top Senior C# Jobs in Miami, FL

Maintain and enhance the ChangePoint system, implement end-to-end solutions, and resolve system defects. Produce technical design and testing deliverables, support data changes in the backend, and provide off-hours support as needed. Ensure architecture and development follow best practices and collaborate with team members and end users.

As a Senior Software Engineer, you'll design scalable backend architectures, implement and optimize backend services, develop front-end UI, and collaborate with global teams to deliver software solutions.

Lead development and enhancement of mathematical optimization algorithms and APIs (LP, MIP, QP, etc.). Implement, benchmark, and document new solver features, support product releases, present at conferences, and collaborate with global teams to improve performance and numerical robustness.

The Principal Software Engineer will provide architectural guidance, mentor developers, manage risks, and ensure high-quality software production across various teams and product areas.

Develop software for CNC machining automation, create algorithms for 3D engineering design, and implement CAD feature detection algorithms, requiring extensive experience in CAD/CAM and 3D modeling.

Develop software for CNC machining, build high-performance algorithms, and collaborate on innovative digital products in advanced manufacturing.

Lead and manage a team building and operating Topstep's Trading Platform. Accountable for team hiring, development, reliability, on-call/incident response, delivery cadence, and cross-functional partnership. Provide technical guidance for backend/distributed, real-time systems and ensure observability, performance, and operational excellence while balancing feature delivery and technical investment.

Technical leader responsible for designing complex software modules and architecture, driving scalability, availability, and performance. Provide guidance to engineering teams, collaborate with product leaders and stakeholders, lead impact assessments and technology decisions, and implement solutions. Advocate reuse, coach agile practices, and ensure high-quality implementations across product versions.

Design, build, and maintain scalable full-stack web applications. Implement backend APIs and responsive frontends, deploy to cloud, ensure security/performance, write tests, debug issues, participate in reviews, and mentor junior developers.

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

Oversee engineering teams driving modernization in healthcare technology through agile practices, AI-assisted engineering, and strong architectural guidance, ensuring quality and compliance.

Seeking a Senior DevOps Engineer for OpenSesame, focusing on CI/CD pipelines, cloud infrastructure, and automation. Responsibilities include improving developer experience and mentoring teams.

The Senior .Net Developer will enhance SDG's C#/.NET Core codebase, design high-load services, and optimize MS SQL queries, benefiting from a remote work environment and attractive benefits.

Full‑stack production engineer responsible for end-to-end development, testing, deployment, and production support of enterprise healthcare applications. Collaborates with cross-functional teams, tunes report queries for performance/security, translates business requirements into technical designs, and contributes to scalable solution architecture while working in Agile (SCRUM) environments.

Design, program, test, and commission PLC and SCADA systems (Siemens and/or Rockwell) for cooling and mechanical plant equipment. Build supervisory logic, SCADA/HMI, safety interlocks, integrate OEM equipment via industrial protocols, create digital twins, lead field commissioning, and develop surrounding software, data pipelines, and tooling.

As a Senior Software Engineer at PerfectServe, you'll design, build, and maintain high-quality code for healthcare communication systems, mentoring junior engineers and collaborating across teams to improve patient care and clinical workflows.

The Senior Data Engineer will design and build scalable data platforms, implement data pipelines, and improve data operations using Azure and various modern tools.

The Senior Full-Stack Software Engineer will develop and support the eCommerce platform, focusing on backend systems and API development using microservices architecture. Responsibilities include collaboration, mentoring, and automation of quality assurance processes.

The Director of Engineering will lead modernization initiatives by managing engineering teams, overseeing code quality, and ensuring zero disruption to customers during transitions.

The Senior Full-Stack Software Engineer will design backend services in .NET, develop UIs in React/Angular, integrate systems, and manage CI/CD pipelines.

The Senior QA Engineer will define the test strategy for modernization, build automation suites, ensure quality in CI, and conduct various testing types.

The Staff Engineer will design scalable architectures, develop backend services, and mentor junior engineers, focusing on high-quality, distributed applications.

The Senior Engineer (Platform) will drive large-scale projects, mentor junior engineers, design service architectures, and ensure engineering excellence while collaborating cross-functionally to optimize user experience and platform efficiency.

The Staff Engineer will design and develop scalable services, mentor junior engineers, optimize platform solutions, and integrate AI/ML features, ensuring security and performance.

The Senior Software Engineer will develop reliable systems for IoT fleet management, create user interfaces, and support data engineering tasks.