Top Senior Software Engineer Jobs

Design, build, and maintain compliance program workflows, carrier integrations, frontend UIs and backend APIs for high-volume, highly available messaging systems. Develop scalable solutions, operate cloud services, collaborate cross-functionally, and drive architecture and quality improvements.

Lead the Cutlass software team to enhance AI targeting for defense systems, mentoring junior engineers, planning, and executing software strategies.

Lead development of a secure modeling & simulation platform: design high-performance C++ and cross-platform (RHEL/Linux, Windows) applications, implement GitLab CI/CD DevSecOps pipelines, manage artifacts with Artifactory, integrate simulation tools, support system integration/testing/deployment, mentor engineers, and maintain compliance and documentation.

Design, develop, and maintain Linux-based, high-availability signal-processing software. Build microservices and rich UIs (Java, Python, Vue3), write automated tests, deploy via DevSecOps pipelines, script/automate processes, support integration/testing, and lead small developer teams while collaborating in an Agile environment.

Design, architect, and build low‑latency, high‑throughput real‑time streaming systems that ingest, process, and distribute market data to trader GUIs. Collaborate with trading, infrastructure, and support teams to ensure accurate tick‑to‑trade delivery, operate and debug production systems, set technical direction, and mentor other engineers.

Design, develop, and maintain full-stack software using .NET, Angular, and relational databases. Drive the full SDLC, troubleshoot production issues, optimize performance, participate in code reviews, and produce technical documentation while collaborating with product, design, and engineering teams.

Lead design, development, and deployment of full-stack and high-performance desktop applications. Architect user-centric systems spanning graphical interfaces, native execution engines, and hardware control. Implement message-based networking APIs, optimize system performance, and collaborate with product, design, and cross-functional teams to deliver responsive, high-quality features.

Develop software for kiosks, owning feature development, working full stack, and improving existing code while collaborating with a multi-disciplinary team.

Early-stage full-stack engineer to build a 0-1 procurement platform: develop front-end and back-end, ship prototypes with great UI/UX, implement API and ERP integrations, design cloud infrastructure, lead technical strategy, and work directly with initial customers.

Lead architecting and building responsive, accessible React and TypeScript web applications. Create reusable component libraries, manage client-side state and data flows, implement testing and performance optimizations, collaborate with product/design/backend/QA, produce task LOEs, engage with clients, and follow company engineering processes.

Design, develop, and own high-performance C++ cloud-based ad-serving and distributed systems. Mentor junior engineers, collaborate with stakeholders, optimize algorithms, deploy and maintain Linux-based services, use Snowflake and Aerospike, review code, and improve system reliability and scalability.

Design, implement, and optimize high-concurrency, low-latency ad-delivery systems. Architect and maintain AWS-based, containerized (Kubernetes) infrastructure, mentor engineers, produce technical documentation, and support production reliability and scalability.

As a Sr. Software Engineer, you will design and develop backend services, APIs, and infrastructure for broker integrations, collaborating closely with cross-functional teams.

The role involves developing and optimizing NT Connect's web platform, creating APIs, collaborating on frontend design, and ensuring high-performance integration for trading partners.

Design, develop, and maintain Scala/Akka-based low-latency trading systems on Kubernetes/GCP. Architect scalable, resilient backend services, integrate market data feeds, implement monitoring/observability, troubleshoot distributed systems and networking, and deliver end-to-end production software collaborating with product and engineering teams.

As a Senior Software Engineer, lead technical strategy, build AI-optimized systems, mentor engineers, and ensure data privacy and security.

Design, develop, test, and maintain complex software components for Mastercard's Decision Management Program. Act as a technical leader: drive code quality, system design, integrations, automation, deployments, and operational improvements. Mentor teammates, contribute to agile processes, and promote reusable patterns and standards. Troubleshoot and refactor code, participate in prioritization, demos, and acceptance activities, and adopt new languages and architectures as needed.

As a Senior Software Engineer, you'll design, develop, and maintain full-stack applications, utilizing TypeScript and modern frameworks while collaborating cross-functionally to enhance user experience and performance.

Design and build a proto-driven code-generation pipeline to emit Go SDKs, CLI commands, and Terraform resources. Own API service framework components end-to-end, enforce API standards, collaborate with teams on API design, improve developer experience, and mentor engineers.

Design and deliver scalable, secure, and maintainable software systems. Contribute to architecture, build CI/CD pipelines, design distributed systems and APIs, mentor engineers, collaborate with product and design, and improve observability, performance, and operational reliability across teams.

Build and maintain core game engine systems (memory management, asset loading, threading), improve internal build tools and CI/CD, profile and optimize performance-critical code, collaborate with cross-functional teams, and contribute to long-term technical roadmaps and engineering best practices.

Lead design and implementation of GPU-accelerated libraries and integrations for Apache Spark. Develop Java/Scala and CUDA/C++ components for I/O and DataFrame operations, enable interoperability with table formats and metastores, contribute to open source projects, collaborate on distributed systems at scale, and optimize cross-platform CUDA/C++ libraries and CI/testing infrastructure.

As a Staff Software Engineer at NexHealth, you will design and build scalable software to improve patient experiences and partnerships in healthcare. You'll own projects end-to-end and collaborate with teams to address innovative challenges.

Build and operate Go-based backend services and APIs to manage hardware lifecycle (RMA, data center operations, node repairs). Design scalable, reliable microservices, integrate vendor APIs, manage databases for operational and reporting use cases, and deploy/operate services on container platforms.

Lead full-stack engineering for Studio: design, build, and own APIs, backend services, and React/TypeScript product features on AWS. Drive architecture and technical direction, lead projects end-to-end, mentor teammates, leverage AI-assisted development, troubleshoot production issues, and collaborate with product and cross-functional teams to deliver customer-focused outcomes.