Top Senior Software Engineer Jobs

The Back-End Engineer will design and build core platform services, operate production services, and work on AI-powered features while collaborating with cross-functional teams and mentoring junior engineers.

As a Front-End Software Engineer, you will build AI-powered interfaces, tackle complex design problems, and collaborate across teams to enhance user experiences. Responsibilities include mentoring, implementing responsive UI, and engaging with AI technologies.

Design and implement Android features from design through launch, optimize mobile UX and performance, perform code reviews, evaluate technical tradeoffs, and use AI tools to streamline development while maintaining security and production-quality code.

Design and develop high-performance real-time data pipelines for processing financial market data, ensuring low latency and high throughput.

Hands-on senior full-stack engineer building cloud-native, responsive React UIs and Java/Spring Boot backends. Develop RESTful APIs and microservices, ensure code quality, CI/CD, security, and collaborate with Product, UX, QA, and DevOps in Agile delivery.

Lead a team to design, build, and maintain scalable full-stack applications using Java, TypeScript/JavaScript, Spring, React, Node, and Azure. Coordinate with internal and external teams, integrate external systems (REST/SOAP), apply architecture, security, and performance best practices, and implement DevOps/CI-CD automation.

Design, develop, and maintain full-stack web applications hosted in the cloud. Implement front-end UIs, build backend APIs interacting with cloud services, containerize apps, collaborate with infrastructure engineers, follow Agile and DevSecOps practices, and contribute to extensible, object-oriented codebases.

Design, develop, and maintain scalable, reliable Python applications. Participate in design and code reviews, collaborate with engineers and data scientists, adopt microservices and containerization, follow Agile practices, and support deployment and integration for DoD-focused AI/ML and simulation projects.

As a Fullstack Software Engineer, you'll design, develop, and maintain scalable frontend and backend systems while collaborating across teams.

Build and improve backend services and APIs supporting secure, reliable video playback. Own projects involving content protection, streaming security, playback latency, publishing workflows, and availability testing. Collaborate across product and engineering teams, participate in on-call response, debug production issues, and improve testing, observability, documentation, and service reliability.

Develop and integrate autonomy and mission systems software for sensing platforms, implement real-time Modern C++ applications from higher-level algorithms, lead small teams, perform M&S and live testing using LVC infrastructure, and engage with customers to shape requirements and deployments.

As a Software Engineer at Citadel, you will build systems for investments, collaborate with researchers, and tackle complex problems.

Lead development of web, mobile, and backend applications using modern cloud technologies. Design and implement major components, build secure and high-quality solutions, develop RESTful APIs, perform database and SQL development, conduct unit testing, configure mobile entitlements and deployment profiles, and collaborate with stakeholders and cross-functional teams.

Build and own backend services for a private markets investing platform. Deliver end-to-end software across design, implementation, testing, deployment, and operations. Collaborate with product and engineering teams, iterate on ambiguous problems, apply distributed systems principles, and incorporate AI/LLMs for data extraction and document generation. Participate in recruiting and maintain high-quality delivery practices.

Build and own end-to-end software features for a private markets investing platform. Work across frontend (TypeScript/React/Next.js) and backend services (Python/FastAPI/AWS), contribute to design systems, testing, deployments, and product development while collaborating with product and stakeholders.

Senior software engineer responsible for architecting and delivering full-stack solutions for scientific workflows (studies, workflows, procedures) used in regulated GLP/GMP environments. Lead multi-quarter initiatives, influence engineering direction, mentor engineers, partner with product and design, and explore AI/LLM opportunities to accelerate lab operations. Own end-to-end delivery and help scale hiring, tooling, and processes.

As a Senior Backend Software Engineer, you'll design, build, and operate scalable infrastructure systems, contributing to complex data processing libraries and distributed systems, while collaborating with teams to create impactful software solutions.

As a Senior Front End Software Engineer, you will develop user interfaces and APIs for data-intensive applications, ensuring usability and performance while mentoring other engineers.

As a Senior Backend Software Engineer, you'll lead the architecture and development of scalable backend services, ensuring high performance and coding standards while collaborating with cross-functional teams to enhance user workflows and build robust APIs.

Design, develop, and maintain secure, production-grade full‑stack applications and microservices using React, Java/Node.js/Python and AWS. Integrate SaaS platforms (e.g., Monday.com), implement CI/CD, observability and AI‑assisted workflows, troubleshoot production issues, and ensure alignment with enterprise standards for security, resiliency, and scalability.

Design and develop software solutions, analyze complex problems, and provide support for trading activities in a dynamic environment.

As a Senior Flight Software Engineer, you'll design and implement flight software for deep-space missions, ensuring integration with spacecraft hardware and supporting verification processes for mission success.

The Staff Flight Software Engineer will design and develop flight-critical software for spacecraft, ensuring integration and operational success. Responsibilities include full lifecycle software development, collaboration with various teams, and support for testing and mission simulations.

Build and architect frontend user interfaces for the Service Monetization Platform, focusing on acquisition and secure checkout. Collaborate with design, product, QA, and data teams to solve complex problems, optimize performance, and deliver features through end-to-end delivery, testing, and deployment in an Agile environment.

Design, build, operate, and own scalable backend services and APIs for internal and customer-facing applications. Improve performance, observability, security, and reliability; lead architecture and API standards; troubleshoot production issues; support CI/CD and automation; mentor engineers and drive backend best practices across teams.