Top Senior Software Engineer Jobs

Build and extend Braze’s high-scale Core Objects systems, including ingestion pipelines and complex backend services. Improve system performance and cost efficiency while developing full-stack features across a Ruby monolith. Collaborate with the team, provide technical leadership, apply strong software design and algorithms knowledge, and use AI-assisted tools to deliver reliable solutions efficiently.

Build and scale Braze's core data object systems, including high-scale ingestion pipelines and backend infrastructure. Develop full-stack features, optimize system performance and costs, and lead complex engineering initiatives. Collaborate in an agile team, apply strong software design and algorithms knowledge, and use AI-assisted tools across product delivery. The role requires technical leadership, communication, organizational skills, and experience building software at scale.

Own product features end-to-end across web app, GraphQL API, and embeddable components. Design schemas and APIs, build backend and frontend, write tests, monitor real-user behavior, and ship weekly. Establish shared component library, design system, and testing patterns. Optimize performance and leverage AI tooling to accelerate engineering and product collaboration.

Lead development of scalable Java backend applications and high-availability cloud services. Design architectures, REST APIs, databases, caching systems, and distributed session infrastructure. Mentor engineers, drive technical initiatives, address performance and scalability challenges, and uphold quality and automation practices for endpoint management products.

Lead technical strategy and execution for Affirm’s account management team, building secure, scalable fullstack systems and customer account security experiences. Collaborate with product, design, analytics, and engineering teams; establish quality, monitoring, testing, and operational standards; support availability and on-call practices; communicate technical decisions; and mentor engineers.

Design, implement, test, and deploy scalable software solutions for high-availability environments. Collaborate with technical teams, apply modern frameworks and technologies, evaluate solutions against business goals, document software and system designs, and mentor colleagues through knowledge sharing and training. The role supports virtualization, microservices, software-defined networking, network functions virtualization, and big data initiatives while resolving technical issues independently.

Develop and operate scalable backend services for DraftKings Exchange, supporting high-volume, low-latency transaction processing and real-time market activity. Responsibilities include designing distributed systems, evolving platform architecture, optimizing performance, improving reliability and observability, resolving production issues, and establishing engineering best practices through code reviews and mentorship. The role collaborates with Product, Data, Trading Operations, and Engineering teams to build a seamless financial exchange experience.

Lead development of secure, scalable iOS and Android mobile applications using Swift, SwiftUI, Objective-C, Java, and Kotlin. Design complex front-end solutions, integrate native device capabilities, implement automated testing, optimize performance, and support SRE practices. Guide technical decisions, advise stakeholders, promote responsible AI-assisted engineering, coach peers, and collaborate with UX and cross-functional teams while maintaining strong application security and operational stability.

Design, build, and own scalable microservices and secure APIs that transfer value across blockchain and banking protocols. Extend in-house blockchain infrastructure, integrate with banks and cloud services, troubleshoot production issues, document system and testing procedures, and collaborate with product and engineering teams to deliver reliable payment experiences.

Lead complex card payments acquiring projects from design through production, building and operating highly reliable systems. Apply deep ISO 8583 and card-network expertise to routing, authorization, capture, clearing, settlement, reconciliation, and processing costs. Write production code, develop certification tooling, debug payment messages, establish reusable standards, mentor engineers, use AI coding agents responsibly, and participate in on-call support for critical financial systems.

Build and maintain production frontend applications for mission-critical communications software. Develop reusable UI components, integrate frontend systems with APIs and backend services, implement testing and CI/CD pipelines, resolve performance and usability issues, and contribute to technical requirements and architecture. Provide technical leadership through code reviews, agile planning, mentorship, documentation, and collaboration with engineering, UI/UX, and customer stakeholders.

Leads software engineering initiatives for customer account servicing, designing, developing, testing, and deploying scalable microservices and responsive applications. Builds solutions using Java, Spring Boot, React, and TypeScript; develops RESTful and GraphQL APIs; participates throughout the SDLC; evaluates complex architectures; establishes engineering standards; mentors junior engineers; and applies technologies including cloud platforms, event streaming, caching, observability, DevOps, and generative AI.

Leads the design, development, testing, documentation, and maintenance of complex secure software systems and cloud infrastructure. Provides technical guidance across teams, evaluates secure coding practices, defines engineering metrics, and supports architecture and integration decisions. The role also incorporates AI to build scalable solutions, improve development workflows, manage model lifecycles, evaluate AI tools, forecast project risks, and drive intelligent automation.

Leads mission-critical software architecture, design, implementation, integration, verification, and lifecycle maintenance. Ensures compliance with software processes, policies, reference architectures, and industry standards. Coordinates across Mission Systems teams, supports containerized architecture, executes research and development projects, collaborates on testing, and mentors engineers. The role is fully onsite in Berkeley, Missouri and requires an active Secret clearance, SAP access eligibility, U.S. Person status, and successful completion of a technical assessment.

Develop scalable full-stack web applications and platform capabilities using modern web and cloud technologies. Translate requirements into maintainable software, contribute to architecture, perform code reviews and automated testing, debug issues, and collaborate in Agile teams. The role also involves adopting AI-powered engineering tools, mentoring teammates, and delivering reliable, high-quality features.

Designs, develops, and supports scalable cloud-native backend services and REST APIs using Java and Spring Boot. Architects AWS solutions, event-driven systems, and distributed applications; works with relational and NoSQL databases; and drives performance, reliability, observability, and CI/CD improvements. Provides technical leadership, makes architecture decisions, mentors engineers, conducts code reviews, collaborates cross-functionally, and troubleshoots complex production issues.

Leads and develops complex C++ software for electronic warfare, secure communications, radar warning, and electronic attack systems. Responsibilities include software design, implementation, testing, validation, technical leadership, mentoring, customer presentations, process improvement, and collaboration with systems, hardware, and test engineering teams. The role is fully onsite and supports defense programs requiring an active DoD Secret clearance.

Provides technical leadership for complex software development in defense and electronic warfare programs. Responsibilities include designing, implementing, and modifying primarily C++ software in Linux environments; evaluating designs; supporting requirements, integration, testing, and verification; presenting technical designs to customers; improving engineering processes; and mentoring technical teams. The role is fully onsite and requires an active DoD Secret clearance.

Leads complex software engineering for electronic warfare, secure communications, radar warning, and electronic attack systems. Responsibilities include designing, implementing, testing, and evaluating C++ software in Linux environments; presenting technical designs; mentoring engineers; improving development processes; coordinating with systems, hardware, and test teams; and providing technical leadership across engineering programs.

Leads agile software engineering teams by designing, developing, testing, debugging, and deploying secure, scalable applications. Reviews production code, improves operational stability, automates recurring remediation, promotes responsible AI-assisted development, and evaluates vendor and architectural solutions. Requires strong software development lifecycle expertise, cloud-native experience, application resiliency, security, agile methodologies, and financial services IT knowledge.

Build and scale mission-critical tips, earnings, and payroll platforms for restaurant employees. Own systems end to end, lead complex projects from design through deployment, improve reliability and correctness, collaborate with product and design, review code, mentor engineers, and deliver scalable backend services that affect employee pay and product revenue.

Design, develop, deploy, and maintain scalable distributed systems, microservices, APIs, data pipelines, event-driven applications, and cloud services for a marketing technology platform. Responsibilities include database optimization, observability, incident response, AI integration, production controls, technical documentation, code reviews, testing, and client implementation reviews.

Leads software engineering for secure, scalable banking technology products. Designs and develops Java and Spring Boot services, builds specification-driven development tooling, establishes BDD and SDD practices, and promotes AI-assisted engineering with responsible validation. Oversees code quality, testing, deployment, resiliency, troubleshooting, and automation. Evaluates vendor and architectural solutions and leads engineering communities of practice.

Leads software engineering initiatives, develops secure Java and Spring Boot applications, and drives AI-assisted engineering practices. Builds specification-driven development tooling using OpenAPI, JSON Schema, and AsyncAPI; leads BDD and SDD adoption; reviews and debugs production code; improves automation, resiliency, and security; and evaluates emerging technologies and vendors. Requires expertise in Java, J2EE, Spring Boot, EKS, Kafka, agile delivery, CI/CD, and responsible use of AI coding tools.

Leads software engineering for Cash Prime Technology, designing, developing, testing, and troubleshooting scalable Java applications. Responsibilities include building microservices and micro-frontends, managing unit, system integration, and user acceptance testing, ensuring production stability and resiliency, and contributing to architecture and coding standards. The role partners with technical and business stakeholders, supports clearing and settlement functions, and drives responsible adoption of AI-assisted engineering tools, automation, CI/CD, cloud technologies, and secure development practices.