Top Senior Software Engineer Jobs in Milwaukee, WI

Design and deliver backend systems and APIs in Go, contribute full-stack features with React/TypeScript, lead complex technical projects, participate in on-call rotations, collaborate with product and design, and drive maintainable, scalable observability features.

Design, build, and scale backend systems and APIs for high-transaction consumer products. Collaborate with product, credit, compliance, support, and analytics teams. Contribute to code reviews, technical planning, security, and operational excellence. Mentor peers and promote engineering best practices.

The Staff Software Engineer will lead the design of the Integrations Platform's architecture, authoring framework, and integration strategies while coaching other engineers and ensuring high-quality integrations over multiple quarters.

The Senior Software Engineer will enhance Flow protocol's architecture, improve performance, and ensure reliability for decentralized applications and services.

Lead team in developing Enterprise B2B solutions, uphold quality standards, drive AI adoption, mentor engineers, guide architecture and legacy modernization efforts.

The Senior Software Engineer will design and implement backend solutions for a social casino platform, collaborate with team members on architecture, and review code, while ensuring the product meets user needs.

The Sr Software Engineer will lead IoT cloud software development, design data pipelines, manage cloud infrastructure, and ensure platform compliance while mentoring the development team.

As a Senior Software Engineer, you'll build and operate the ML platform, optimizing data operations, managing the feature store, and supporting ML initiatives while driving architectural roadmap decisions.

The Senior Software Engineer will design and build a collaborative web platform, managing backend and frontend systems, mentoring junior engineers, and driving architectural decisions. Responsibilities include API design, code quality assurance, and integrating AI into the development workflow.

Own quality engineering and test automation for BRINC's LiveOps web platform and backend services. Design and maintain automated API, integration, and end-to-end test frameworks, validate security/IAM controls and ML/vision outputs, build test infrastructure, run performance/load testing for real-time streaming and teleoperation, integrate tests into CI/CD, triage failures, and produce quality metrics and release-readiness reports.

Technical lead individual contributor who architects and delivers complex cross-team, customer-facing product initiatives. Partners with Product, Design, and Data to translate ambiguous problems into scalable solutions, raise engineering standards through code review and mentorship, address technical debt and performance, and influence roadmap and technical strategy.

As a Software Development Engineer III on the Maps API team at Mapbox, you will design and develop mapping tools, ensure service reliability, mentor peers, and promote operational excellence in a fast-paced evolving environment.

Design and build secure, scalable systems as a Full-Stack Software Engineer, leveraging expertise in Next.js, TypeScript, PostgreSQL, and AI tools to enhance cybersecurity within global infrastructure.

The Senior Full-Stack Software Engineer will design, build, and maintain secure, scalable web applications using modern technologies, with a focus on AI-assisted development and application security.

As a Systems Engineer, you will enhance Windows support for Swift and develop features for internal projects and the Swift community, focusing on system architecture and tooling improvements.

Develop and maintain ClickHouse's billing platform, integrate with external systems, design secure frameworks, and collaborate with cross-functional teams to enhance business processes.

Expand and maintain Hudl's front-end platform to accelerate product teams: design and implement scalable, performant, accessible front-ends and tooling (Vite, Next.js), consult and review front-end work, support adoption of design systems, and mentor teams to improve developer experience.

Lead design and development of complex, scalable features and services across applications. Provide architectural direction, mentor engineers, perform code reviews, improve CI/CD and testing, identify performance and scalability issues, and drive engineering best practices and documentation across teams.

Work on the Web Platform team to design, build, and scale a new content management system. Contribute to front- and backend services, participate in Agile sprints, make technical decisions, mentor teammates, and help migrate and improve content delivery and cloud infrastructure.

Lead design and delivery of the public-facing API platform and ingestion services. Build scalable, reliable real-time distributed systems, collaborate with product and data teams, review designs and code, address technical debt, take operational ownership using observability tools, and mentor engineers.

Lead design, build, and operate scalable Salesforce data solutions and integrations. Drive architecture, migrations, ETL, data transformations, quality controls, observability, and platform modernization. Serve as senior technical contributor, mentor engineers, collaborate with stakeholders and data teams, and produce technical documentation and operational support for enterprise Salesforce data initiatives.

Build AI security features into Delinea's access proxy and platform: enforce just-in-time access, control agent-to-agent communication (MCP), connect and migrate capabilities into the platform while maintaining customer continuity.

Design, build, and maintain scalable customer-facing platform services and React SPAs using C#/.NET Core. Drive architecture, implement event-driven systems with Kafka, optimize distributed systems, ensure automated testing and CI/CD, mentor engineers, and collaborate with product and engineering leaders to deliver secure, high-performance solutions in cloud environments (Azure preferred).

Senior Software Developer on a greenfield Voice & Messaging team building serverless, event-driven real-time communications on AWS. Design, implement, deploy, and maintain production-quality Node.js services and real-time call infrastructure (WebRTC/SIP/LiveKit). Collaborate across distributed teams, review code, mentor peers, and ensure reliability, scalability, and regulatory compliance for mission-critical legal communications.

Design, build, and maintain scalable, secure Azure-based RESTful APIs and backend services using C# and modern .NET. Provide technical ownership across design, deployment, monitoring, performance optimization, security (Azure AD/OAuth/OpenID Connect/JWT), CI/CD, and production troubleshooting. Lead design reviews, mentor engineers, and improve cloud architecture and engineering best practices.