Top Senior Software Engineer Jobs

Lead architecture and scaling of high-throughput, fault-tolerant data pipelines and feature stores for risk decisioning. Build real-time and batch systems, ensure data quality and observability, partner with ML and risk teams, and mentor engineers to enable fraud detection and model-driven automation.

As a Senior Software Engineer, you will design and maintain systems, mentor team members, and improve both code quality and team practices.

The Senior Software Engineer will design and maintain React-based user experiences for eCommerce, ensuring high performance, reliability, and effective collaboration with teams while optimizing customer experience.

Develops, enhances, integrates, tests, and debugs complex software systems and algorithms. Derives software requirements, designs system components, improves development processes, creates documentation, and supports software integration and testing. Leads development teams, performs quality control, and collaborates with systems and hardware engineers. Requires experience with user stories, acceptance criteria, configuration management, CI/CD tools, SQL, scripting, and software testing.

Lead development and reliability of real-time and batch payment-processing systems across authorization, clearing, settlement, disputes, and card-network integrations. Build scalable, secure, low-latency services using Java, Python, Kotlin, and AWS; improve network peering infrastructure, failover, and capacity. Own initiatives from planning through launch, participate in on-call rotations, reduce technical debt, and drive cross-functional engineering improvements and strategic planning.

The Software Engineer develops and enhances software systems, manages CI/CD pipelines, and provides automation and scripting support. Responsibilities include analyzing requirements, debugging, testing, and collaborating within teams to deliver software solutions.

Own the roadmap and technical direction for Ray Core, leading complex distributed-systems projects across multiple teams. Design and implement primitives involving scheduling, resource management, fault tolerance, concurrency, networking, storage, and performance. Remain hands-on in systems-oriented development and debugging while mentoring engineers, raising technical standards, and guiding Ray Core’s long-term architecture and production evolution.

Own and develop Curri’s React Native driver applications across iOS and Android. Lead mobile features from problem definition through deployment and measurement, build offline-first capabilities, background geolocation, and push notifications, and debug native modules and production issues. Collaborate directly with drivers, operations, Product, and Design while contributing to full-stack work and AI-assisted development.

Design, develop, maintain, and test complex software systems and full-stack features. Provide full-stack support for the AUTUMNATTIC tool (Java/Angular/Elasticsearch), debug and resolve defects, perform code reviews, implement algorithms, integrate software, develop queries, and assist users and documentation.

Own the end-to-end real-time neuronavigation and autonomy software stack for a medical device. Develop computer vision, sensor fusion, robotics, machine learning, and C++ real-time systems for patient tracking, coil localization, autonomous treatment delivery, and safety controls. Lead robotic integration, testing, FDA design verification, software lifecycle documentation, and cross-functional technical direction. Mentor engineers and work onsite with sensors, robots, and test fixtures.

Build and optimize distributed data-ingestion infrastructure for high-volume, petabyte-scale structured and unstructured data. Develop streaming, incremental processing, replication, CDC, observability, and Delta Lake capabilities while improving throughput, latency, reliability, and cost. Collaborate on RAG and AI-agent use cases, apply machine learning to streaming workloads, and build agentic SDKs with effective evaluations. The role requires production software development and architecture experience with large-scale asynchronous and distributed systems.

Design and build AI-native developer tooling, including context aggregation, MCPs, CLIs, skills, sub-agents, and cloud agent solutions. Integrate AI into code review, testing, code generation, documentation, refactoring, and incident workflows. Optimize AI model selection and costs, improve developer velocity, and establish engineering standards. Own tools end-to-end while partnering with platform, infrastructure, and application teams in an evolving organization.

Build and maintain Go-based Akash node and provider software for a decentralized cloud marketplace. Responsibilities include designing and testing network upgrades, troubleshooting Kubernetes workloads and networking, maintaining gRPC and protobuf APIs, releasing software, documenting technical features, and contributing to AkashML and Homenode. The role requires expertise in distributed systems, security, backend services, testing, open-source workflows, and remote collaboration.

Designs, develops, tests, troubleshoots, deploys, and maintains mission-critical software and backend services using C++ and Python. Supports Linux and Windows applications, web applications, SQL databases, automation, GitLab repositories, CI/CD pipelines, automated testing, configuration, documentation, and secure DoD software development. The role supports the Air Force Distributed Mission Operations Center and requires an active Secret clearance and U.S. citizenship.

Build and maintain frontend products and tools across the Brex stack. Collaborate with engineers and customer-facing teams, design experiments, own user experience and technical outcomes end to end, and improve scalability, operability, and performance. The role involves architecting, developing, and testing client-side applications while contributing to cross-functional projects and long-term technical vision.

Build and launch customer-facing financial software products, design scalable backend systems, improve banking experiences, and own solutions from user experience and data models through operability, scalability, and metrics. Collaborate cross-functionally with engineering, Sales, and Support teams while maintaining high quality standards and contributing to Brex’s technical direction.

Build and launch scalable, customer-facing backend products for Brex’s financial platform. Responsibilities include designing backend systems, collaborating cross-functionally, improving banking experiences, owning solutions from data models through scalability and operations, and measuring ongoing performance. The role requires strong backend development experience, database expertise, technical ownership, communication, and a commitment to engineering quality.

Build and maintain frontend products, features, and scaling tools across the Brex stack. Collaborate with engineering, sales, support, product, design, and operations teams; design experiments; own user experience, data models, scalability, operability, and metrics; and lead complex cross-functional initiatives while maintaining high engineering standards.

Develop and launch scalable, customer-facing backend products for Brex’s financial platform. Responsibilities include collaborating across engineering and user-facing teams, designing banking solutions, owning user experience and data models, improving scalability and operability, monitoring metrics, and maintaining high-quality standards. The role requires backend development experience, database expertise, strong communication, and end-to-end product ownership.

Build and maintain frontend products and tools across the Brex stack using modern client-side technologies. Collaborate with engineers and user-facing teams, design experiments, own features end to end, and optimize user experience, scalability, operability, and metrics. The role also involves leading cross-functional projects and contributing to long-term technical vision.

Build and operate Helios’s acquisition and document-processing infrastructure, including web crawlers, connectors, fault-tolerant pipelines, multilingual document and media processing, OCR, extraction, transcription, and enrichment. Establish data contracts, provenance, versioning, observability, security, and correction propagation across distributed systems. Scale batch and real-time CPU/GPU workloads while supporting international sources and restricted environments.

Provide technical leadership across engineering teams by defining architecture, building reusable cloud-native platforms, and designing distributed systems and production AI applications. Establish engineering standards for reliability, security, observability, governance, and operational excellence. Mentor senior engineers and technical leaders, influence architecture through collaboration, and drive modernization, AI-assisted development, and platform engineering initiatives.

Lead development of Java backend services, REST APIs, and React features for DigiCert’s enterprise identity and platform infrastructure. Architect IAM flows using OAuth 2.0, OIDC, and SAML; implement secure, multi-tenant systems; and improve CI/CD, Kubernetes infrastructure, observability, and reliability. Integrate AI and LLM capabilities, use AI coding agents, mentor engineers, and lead incident response and technical design decisions across engineering, product, and security teams.

Build and maintain backend computation engines for solar and electrical design. Develop simulation and optimization systems for PV and battery storage layouts, component selection, and electrical configuration. Translate physical models into reliable, scalable software, shape computation infrastructure, write tested code, mentor teammates, collaborate cross-functionally, and own services through production and on-call support.

Designs, implements, tests, and operates scalable payment software and services. The role owns technical vision, architecture, infrastructure, reliability, observability, automation, and production troubleshooting within a domain. Responsibilities include partnering with product management, understanding customer payment needs, delivering secure and highly available APIs, improving engineering practices, and mentoring junior engineers.