Top Software Engineer Jobs

Develop end-to-end cloud-native software and resilient distributed systems for government missions. Design scalable architectures, REST APIs, microservices, data pipelines, dashboards, containerized applications, CI/CD pipelines, and automated testing. Collaborate with architects, DevOps teams, product managers, and clients while improving system reliability, performance, security, and operational processes. The role requires Java or Python proficiency, cloud platform experience, Kubernetes, infrastructure as code, and TS/SCI clearance with polygraph.

Develop, integrate, test, debug, and optimize RF signal-processing software from concept through production. Design DSP algorithms and apply Fourier transforms, filtering, modulation, communications theory, and error-control coding. Collaborate with systems engineers, analyze requirements, improve software and system performance, and ensure architectural alignment. The role supports mission-critical government capabilities in Linux environments and requires advanced technical expertise in software development and signal processing.

Develop, maintain, test, and enhance complex software systems in an agile environment. Lead software teams in delivering production-ready solutions using Java, Python, APIs, open-source frameworks, containerization, Kubernetes, and CI/CD tools. Analyze system architectures, contribute to software and hardware tradeoff decisions, perform requirements analysis, and implement system improvements. The role requires TS/SCI clearance with polygraph and supports classified government missions.

Develop and maintain complex full-stack software systems for government missions, from requirements and architecture through production. Review and test software components, contribute to system design and technology trade-offs, identify improvements, and work in agile teams. The role requires Java, cloud, containerization, orchestration, and software development methodology experience, with preferred Python, DevOps, CI/CD, and machine learning knowledge.

Develops end-to-end software solutions in an agile environment using C++, APIs, analytics, infrastructure, open-source frameworks, and cloud technologies. Analyzes operating environments, implements system improvements, and creates production-ready systems. Requires expertise in multithreaded programming, Linux, scripting, containerization, AWS, and classified government environments.

Develop end-to-end software systems and scalable web applications for critical government missions. Build RESTful APIs, microservices, data pipelines, visualizations, containerized applications, and CI/CD deployments. Design architectures, write comprehensive tests, maintain production systems, identify improvements, and collaborate with technical teams in an agile environment. The role requires TS/SCI clearance with a polygraph.

Develops end-to-end software and systems from design through production. Responsibilities include building Java and Spring Boot microservices, handling real-time data with WebSockets and Kafka, managing SQL and NoSQL databases, using containers and orchestration platforms, evaluating architecture, improving systems, and collaborating in an agile team supporting critical government missions.

Develops, tests, deploys, and maintains enterprise software for life and annuity exchange platforms. Responsibilities include building C#/.NET applications and REST APIs, integrating AI capabilities, managing AWS infrastructure, developing SQL Server solutions, troubleshooting existing platforms, and collaborating with global stakeholders and clients. The role also contributes to architecture, technical documentation, deployment support, and mentoring junior engineers.

Develop and maintain high-fidelity simulation models, digital twins, and distributed systems for Cisco routing and AI fabric products. Build virtual board environments, model hardware components, integrate packet-processing models, optimize simulation tools, automate testing, and debug models, drivers, and network operating systems. The role also provides technical support to engineering teams and contributes to open-source projects.

Build and ship end-to-end product improvements across frontend and backend systems. Develop AI agent workflows, customer-facing experiences, APIs, integrations, data flows, and background jobs using TypeScript, React, Node.js, and PostgreSQL. Translate customer requirements into reliable software, test and debug production behavior, participate in code reviews, and take increasing ownership of product areas. The role is fully onsite in New York City.

Design, implement, and test C, C++, and P4 programs and backend compiler features for high-performance network devices. Build and optimize SDKs, simulators, and compilers, collaborate with ASIC engineers, solve resource-management challenges, and develop Python-based test frameworks and test cases to validate data-plane and SDK functionality.

Software engineering interns contribute to production features, APIs, services, machine learning applications, data ingestion pipelines, and platform infrastructure. They participate in code reviews, deployment, observability, infrastructure as code, and engineering best practices while collaborating with experienced teams. Interns also receive opportunities for technical learning and cross-team exploration. The role requires algorithmic knowledge, software development experience through projects or open source, adaptability, and strong coding, documentation, and communication skills.

Build and maintain DODIN-N data bus and echo systems across Azure and AWS. Support data analysis, data science, cloud engineering, AI/ML, DevOps, DevSecOps automation, and testing within a SAFe scrum team. Serve as a technical customer contact, deliver presentations, participate in customer and vendor meetings, and provide engineering support. The role requires 15% CONUS travel and eligibility for a Secret security clearance.

Designs, develops, tests, deploys, and integrates software solutions for complex engineering projects. The role establishes requirements, implementation plans, timelines, and technical documentation; collaborates with hardware, communications, quality, configuration, operations, and project teams; reviews software compatibility; mentors engineers; troubleshoots applications and systems; and supports system administration across multiple operating systems. U.S. citizenship and a Secret clearance with Top Secret eligibility are required.

Develop Salesforce solutions for secure government environments, including Lightning Web Components, Apex, APIs, automation, data models, and enterprise integrations. Build full-stack features, support MuleSoft and REST/SOAP integrations, participate in Agile ceremonies, document technical work, and collaborate with technical and non-technical stakeholders. The role requires compliance with cybersecurity and data governance standards, plus occasional customer or on-site support.

Develop and modernize enterprise software for the NCRC program within a government facility. Responsibilities include architecture enhancement, DevSecOps and CI/CD improvement, application coding, debugging, testing, troubleshooting, systems integration, unit and integration testing, and production support. The engineer will work on an agile scrum team using modern web technologies, databases, scripting languages, and containerization tools while supporting classified government systems.

Develops and supports software for the SSEE Family of Systems, including integrating software branches, refactoring Java and JavaScript code, designing reusable components, troubleshooting systems, and implementing new integrations. The role conducts independent research, coordinates technical integration across teams, and supports full software and systems engineering activities. It requires STEM education or equivalent experience, substantial software engineering experience, Security+ certification, virtualization and scripting knowledge, and eligibility for a Top Secret/SCI clearance.

Develop and maintain full-stack cloud applications for Empower data systems, including frontend interfaces, server-side logic, automated testing, troubleshooting, documentation, and technical support. Translate requirements into software tasks, estimate work, review code, mentor junior engineers and contractors, and contribute across frontend, backend, and system levels using Angular, C#/.NET, AWS, Docker, and microservices.

Design, develop, test, and maintain scalable software solutions for last-mile delivery platforms. Collaborate with product and UX teams, troubleshoot production issues, perform root cause analysis, lead projects, mentor junior engineers, implement automation for CI/CD, and improve application reliability, performance, and scalability. The role also supports coding standards, security practices, documentation, and continuous development improvements.

Develop scalable native mobile applications and distributed services for Walmart’s Last Mile Delivery platform. Design APIs and event-driven architectures, process high-volume data, troubleshoot production issues, conduct testing, and lead technical solutions for scale and monetization. Collaborate with product, business, UX, and project teams, provide technical guidance, manage complex projects, and ensure sustainable, on-time implementations.

Leads architecture, development, testing, deployment, and reliability of scalable Marketplace Support platforms. Designs AI- and LLM-powered agentic workflows, distributed systems, and intelligent automation handling millions of seller interactions. Partners with Product, Data Science, and Operations to translate business needs into technical capabilities, influences engineering roadmaps, drives architecture standards, mentors engineers, and champions platform security, performance, observability, and operational excellence.

Leads architecture, design, development, testing, deployment, and operation of scalable Marketplace Support platforms. Builds AI- and LLM-powered agentic workflows, resilient distributed systems, and intelligent automation handling millions of interactions. Drives reliability, security, performance, observability, architectural standards, technical strategy, and engineering excellence. Partners with Product, Data Science, and Operations, mentors engineers, translates business needs into technical requirements, and influences cross-functional roadmaps.

Design, build, and maintain high-performance, scalable Java backend services and microservices for Walmart's catalog platform. Troubleshoot production issues, perform root-cause analysis, mentor junior engineers, work in agile teams, and contribute to cross-functional projects while leveraging cloud, CI/CD, NoSQL, and generative AI/ML technologies.

Leads architecture, development, deployment, stabilization, and support of scalable full-stack enterprise applications using C#, .NET, Angular, SQL Server, and Azure. Designs microservices, APIs, API gateways, self-service applications, and multi-tenant onboarding systems. Provides technical leadership, code reviews, production incident management, disaster recovery guidance, and mentoring. Collaborates with product, infrastructure, and business stakeholders while applying cloud-native, CI/CD, automated testing, and Agile practices. ITAD and reverse logistics knowledge is highly desirable.

Develop, test, debug, optimize, and maintain software applications using C, C++, or C#. Implement features, participate in code reviews, create automated tests, document technical work, troubleshoot production issues, and collaborate with engineers, product managers, designers, and stakeholders. The role also involves system-level programming, application development, continuous integration support, and ongoing learning of technologies and development practices.