Top Senior Software Engineer Jobs

As a Software Engineer in Frontier AI Infrastructure, you'll design secure systems for the public sector, improve engineering standards, and collaborate with cross-functional teams to meet government requirements. You'll also participate in customer engagements and contribute to the product strategy while ensuring compliance with federal regulations.

Develop and maintain high-volume, mission-critical enterprise web applications using C#/.NET, ASP.NET MVC, AngularJS, and SQL Server. Responsibilities include full lifecycle development, architecture and design participation, troubleshooting, performance and scalability improvements, AI-assisted workflow development, Agile collaboration, technical mentoring, and supporting multi-tier systems.

Leads software development teams through complex projects, including system architecture, integration, database and application design, task assignment, milestone planning, coding, testing, documentation, and production support. Serves as a liaison between business owners, technical teams, IT management, and vendors. Provides technical leadership, consultation, staff training, technology recommendations, and project reporting while developing performant software solutions using .NET, C#, ASP.NET, and relational databases.

Own end-to-end development of high-traffic claims, appointments, and payment-posting workflows. Build scalable full-stack features, APIs, data models, tests, dashboards, logging, and alerting for data-dense healthcare billing surfaces. Collaborate with product, design, and billing operations, review code and designs, improve technical standards, and mentor teammates. The role also involves bulk processing, healthcare billing integrations, and selectively deploying LLM-powered productivity features.

Develop and scale Zuora’s high-throughput, highly available subscription experience platform. Design secure APIs, backend and frontend solutions, and multi-tenant applications serving public and B2B users. Collaborate with product, operations, and vendors on architecture and requirements; deploy, monitor, troubleshoot, and optimize production microservices. Lead code reviews, establish technical standards, improve operational processes, and mentor junior engineers.

Build and own backend services, ERP and supplier integrations, AI agentic workflows, spend analytics, and customer-facing procurement features. Develop evaluation and monitoring systems for production AI, establish architecture, improve security and privacy, and mentor junior engineers. Collaborate directly with customers and founders to shape product direction in an early-stage environment.

Lead end-to-end design, development, deployment, testing, and production support of enterprise web applications. Build scalable client/server architectures, ensure security and data governance, mentor team members, collaborate with product and business stakeholders, and own timely delivery and quality of solutions. Analyze data patterns and support reporting and selection workflows.

Leads a software engineering squad through Agile development, from requirements analysis and architecture through deployment and production support. Designs scalable Java and AWS lending-platform solutions, contributes hands-on code, conducts design and code reviews, and drives modernization of automated testing and CI/CD practices. Collaborates with Product Management, architects, engineers, and the VP of Technology while improving squad performance and software quality.

Own and deliver full-stack servicing features end-to-end: design, implement, deploy, and operate front-end (Next.js/React) and back-end (.NET/C# with NestJS GraphQL) systems on AWS/EKS. Use AI tools and agentic workflows to accelerate development, collaborate with product and distributed teams, contribute to architecture, and mentor engineers. Participate in on-call rotation for production reliability.

Lead development of identity, bank, income verification, and fraud detection systems. Own end-to-end features across frontend and backend, work with third-party providers, ensure secure handling of sensitive data, improve conversion and reliability, mentor engineers, and participate in on-call rotations.

Design, build, test, and deploy robust backend systems and web APIs. Lead incident response, code reviews, documentation, prototypes, and mentor team members while using TDD and AI-assisted tooling.

Own end-to-end full-stack features for client- and team-facing servicing applications. Design and implement front-end (Next.js/React) and back-end (.NET/C# with NestJS GraphQL), deploy and operate on AWS/EKS, use AI-assisted development workflows, collaborate with cross-functional and distributed teams, and mentor engineers while participating in on-call rotation for production reliability.

Build and own full-stack features for an AI-first product that improves sales conversion. Design, implement, deploy, and operate scalable frontend and backend systems (C#, Angular, cloud, Kubernetes), use AI tools in development workflows, partner with product and data teams, influence architecture, and mentor engineers. Participate in on-call rotation as needed.

Lead end-to-end development of the borrower acquisition funnel, improve conversion through experimentation, own frontend and backend features, run A/B tests, instrument analytics and observability, mentor engineers, and support production (including on-call).

Own the design, development, deployment, scaling, and operation of a distributed customer-file orchestration service. Build reliable multi-stage pipelines handling uploads, extraction, embeddings, indexing, queues, retries, backpressure, autoscaling, and API contracts. Lead incident response and on-call operations, improve observability and automation, make consistency and delivery-guarantee decisions, and mentor engineers while collaborating across storage, extraction, indexing, connector, and frontend teams.

Build and maintain production-ready distributed filesystem components and frameworks for Salesforce’s multi-tenant SaaS cloud platform. Design scalable microservice architectures, algorithms, and workload-distribution systems used by millions of users. Responsibilities include coding, code reviews, mentoring junior engineers, and providing technical guidance while applying software development best practices and AI throughout the SDLC.

Develop and support enterprise banking applications using .NET, ASP.NET Core, Angular, SQL Server, Azure, and related technologies. Build REST APIs, web applications, ETL solutions, databases, and automated tests. Review code, analyze requirements, contribute to architecture and technology roadmaps, and support CI/CD and DevOps practices. Work independently within SDLC, Agile, and risk-control standards while collaborating with technical and business stakeholders.

Develop and support Fiserv’s cloud-native Vision NEXT payment platform. Responsibilities include building software applications, event-driven data ingestion, enterprise data pipelines, Snowflake solutions, APIs, automated testing, and AWS-based applications. The role involves integrating large-scale data, optimizing platform performance, troubleshooting production issues, participating in code reviews, and supporting client implementations. Collaboration occurs across software engineering, data engineering, analytics, and LATAM partner teams.

Leads hands-on development of full-stack applications using .NET, React, Next.js, and Azure. Owns architecture, coding, code reviews, testing, security, reliability, observability, production support, and cloud deployment. Integrates AI and GenAI capabilities such as LLM features, RAG, semantic search, and agentic workflows. Mentors engineers, establishes technical standards, collaborates with stakeholders, supports hiring, and helps deliver scalable, secure software.

Design, build, optimize, and scale Ray Data’s distributed data processing infrastructure for large-scale AI training and inference. Responsibilities include distributed execution, scheduling, resource management, data partitioning, fault tolerance, performance optimization, and system architecture. The role also involves collaborating with customers and AI-native companies to solve complex workload-scaling challenges.

Develop and optimize a Windows desktop application featuring geospatial rendering, GIS visualization, and hydraulic model editing. Responsibilities include maintaining the rendering engine, implementing 2D/3D DirectX pipelines, developing computational geometry algorithms, integrating geospatial formats and coordinate systems, testing, documentation, code reviews, and mentoring junior engineers. The role collaborates with technical subject-matter experts to enhance the platform and support water resources engineering applications.

Develop and optimize high-performance C++ numerical simulations for hydrology and water resources applications. Maintain and enhance Windows desktop software and cloud-based SaaS products, addressing computational efficiency, numerical stability, and large-scale data challenges. Collaborate with water resource engineers to translate scientific concepts into software, while contributing to architecture, code reviews, documentation, unit testing, debugging, and continuous improvement.

Design, build, and operate reliable backend services, APIs, data models, and distributed workflows for billing and financial systems. Improve correctness, traceability, observability, performance, and resilience across revenue-critical processes. Collaborate with Product, Finance, Operations, Data, and engineering teams, support production systems, resolve incidents, mentor junior engineers, and integrate AI technologies into engineering and operational workflows.

Build and operate AI-powered product experiences, agent workflows, integrations, and distributed systems. Lead complex initiatives from discovery through production, improve agent performance and reliability, shape technical strategy, and mentor engineers. The role involves hands-on TypeScript development across React, Node.js, PostgreSQL, AWS, and Kubernetes, with responsibility for architecture, observability, testing, developer tooling, and operational excellence.

Leads software development for RF emitter products using modern C++. Designs, develops, tests, debugs, integrates, and deploys software within an Agile Scrum team. Coordinates project-level testing, supports customer integration and test events, conducts software reviews, and mentors junior engineers. The role requires expertise in Linux, concurrency, distributed systems, build systems, DevOps practices, and software team leadership, along with Secret clearance or eligibility.