Top Senior Software Engineer Jobs

Design, modify, and program software for local, networked, cloud, or internet applications. Write code, test and debug, document installation and maintenance procedures, gather user requirements, implement enhancements, and perform related duties.

Design, develop, test, and debug mainframe applications using Assembler (HLASM) and related mainframe technologies. Collaborate in Agile teams, mentor junior engineers, automate tasks with scripting, drive engineering excellence, and modernize enterprise mainframe software.

Build and own end-to-end features for a high-scale restaurant platform. Architect and scale systems, orchestrate AI agents, collaborate cross-functionally, travel to client sites, and support global teams while driving product-focused engineering outcomes.

Design, develop, and maintain cloud-native full‑stack web applications. Build responsive React front ends, .NET Core back ends and REST APIs, deploy to Azure using containers and IaC, manage relational databases, implement CI/CD pipelines, and participate in Agile ceremonies and code reviews.

Lead design, development, testing, debugging, and documentation of digital applications integrating IoT devices. Collaborate with cross-functional teams, coordinate design reviews, ensure software verification, and maintain software configuration and lifecycle processes.

Design and implement resilient, scalable order orchestration systems and secure APIs for high-volume e-commerce. Lead architecture using AWS serverless and containerized microservices, optimize databases and event-driven patterns, improve reliability and deployment velocity, and apply AI/LLM tooling to automate troubleshooting and development workflows.

Design, build, and optimize scalable serverless backend services using AWS Lambda. Implement RESTful APIs and event-driven microservices, maintain CI/CD with GitHub Actions, troubleshoot production issues, conduct code reviews, and mentor junior engineers while collaborating with QA, Product, UX, and Support.

Lead maintenance and expansion of a flagship Windows client-server accounting product. Design, implement, test, and document features; maintain large legacy C++ codebase while developing in C#/.NET. Collaborate with cross-functional teams, gather user requirements, optimize databases, ensure code quality, and apply finance domain knowledge to deliver reliable accounting software.

Work directly with customers to design and implement integrations that connect customer data to Rilla's conversational intelligence. Own end-to-end projects from data modeling and large-scale data processing to hacking integrations and full-stack features, iterate quickly with stakeholders, and travel to client sites as needed.

Design and build scalable, accessible frontend components and micro-frontends for a global vehicle commerce platform. Implement complex rule-driven UIs, real-time pricing displays, deep state management, and guided multi-step workflows. Drive automation, AI-enabled development practices, performance optimization, and contribute to an enterprise design system in a cross-functional Agile team.

Lead the technical evolution of the Incentive Offers platform by architecting scalable services and mentoring engineers while solving complex technical challenges.

Lead the design and implementation of the backend services for the incentive and rewards platform, build real-time event streaming architectures, and mentor team members while managing the software development lifecycle.

The Senior Software Engineer develops and maintains Sports Trading applications using .NET and SQL Server, enhancing existing functions and providing technical guidance.

Lead architecture and development of scalable, high-performance backend APIs and distributed systems. Drive automation, modernization, and integrations (REST/GraphQL/Kafka), mentor engineers, champion CI/CD, observability, and cloud-native practices to align technical work with business goals.

The Senior Software Engineer will lead the development of payment systems, oversee key subsystems, mentor engineers, and ensure high-quality code and architectural standards while collaborating with cross-functional teams.

This role involves leading web platform initiatives, mentoring senior engineers, architecting web applications, and implementing technical strategies for improved performance.

Design, build, and maintain scalable backend services for patient care workflows, ensuring high performance and collaborating with multiple teams.

The Senior Software Engineer will lead and support a team in developing reliable and scalable backend systems, collaborating on product development, and improving infrastructure for secure communication between services.

As a Senior Software Engineer, you'll design, implement, and improve scalable healthcare solutions, work collaboratively in technical discussions, and ensure engineering excellence.

The role involves leading financial analysis for technology spend, designing data models, developing visualizations, and ensuring data quality, while collaborating with internal stakeholders across the company.

The Staff Software Engineer will develop high-quality UI libraries using React.js while driving engineering excellence and maintaining performance standards. Responsibilities include documentation, code reviews, and resolving technical challenges with a focus on automation.

As a Senior Software Engineer on the molab team, you will design backend architecture, ensure high availability and low latency, and develop product features for a cloud-hosted marimo notebook service.

The Senior Software Engineer will design and build secure sandboxed runtime environments for Kubernetes, focusing on GPU workloads and ensuring performance and security in multi-tenant configurations.

The Senior Lead Software Engineer will lead diverse technology projects, collaborate with product managers, and deliver cloud-based solutions while mentoring other engineers and utilizing various programming languages and technologies.

As a Lead Software Engineer at Capital One, you will lead technology projects, mentor team members, and develop cloud-based solutions to enhance customer service quality.