Top Software Engineer Jobs

Build and own backend services, infrastructure, and data systems for Robinhood Wallet. Design, implement, test, and deploy scalable, secure backend features for crypto and tokenized trading. Improve system performance and reliability, collaborate with cross-functional teams, and contribute to architecture and technical decisions.

Design, develop, test, document, and debug application and systems software. Collaborate with hardware designers, analyze system capabilities, determine user needs, prepare operating instructions, and ensure software standards. Work may include compilers, assemblers, utility programs, and OS development.

As a Software Engineer II, you'll develop integration APIs and services using Java and Spring, ensure code quality, and collaborate on architecture and design, focusing on performance and scalability.

Design, develop, and maintain AWS-native, high-availability REST APIs and real-time call treatment engines for telecom call protection. Implement data storage, import/export pipelines, observability, performance tuning, integrations with third-party telecom systems, and participate across the full SDLC.

Build and maintain cloud-native, scalable backend services (primarily in Golang). Own microservices architecture, ensure security, reliability, and performance. Work with data stores, CI/CD, Kubernetes, and stakeholders to deliver enterprise-grade privacy solutions.

Develop full‑stack classification tools and web UIs using Java, Spring Boot, Apache CXF, Tomcat, JavaScript, HTML/CSS, Lotus Notes, and XML/SOAP. Work onsite in Chantilly and Northern VA on a cleared, mission-focused program.

Develop and maintain organization-wide CAD software, flows, and automation for silicon/SoC design. Collaborate with hardware, compute, and stakeholders to collect requirements, design scalable tools, drive complex software projects, and integrate CI and Azure/DevOps practices to support RTL, verification, validation, DFT, emulation, and IP integration.

Join a software team to learn IBM i development (RPG, CL, Db2 for i), trace and fix low-risk defects, write maintainable code and unit tests, participate in Agile ceremonies and code reviews, follow secure-development and quality standards, and progressively support deployments and production after approval.

Develop and maintain Java-based classification tools and secure enterprise services using Spring Boot, Apache CXF, Tomcat, XML/SOAP and related web technologies. Integrate and extend existing systems using Java, Python, C/C++, .NET, JavaScript, HTML/CSS and Lotus Notes. Work full-time onsite in Chantilly, VA on mission-driven, security-sensitive projects requiring an active TS/SCI with Full Scope Polygraph.

Design, build, and maintain scalable cloud-based web and mobile backend systems. Develop and integrate REST APIs, troubleshoot production issues, improve performance and reliability, participate in architecture and code reviews, and collaborate with Product and cross-functional teams in an Agile environment.

Develop, design, and maintain scalable backend services and integrations using Go/Java/Python and microservices. Assist system architecture, testing, performance optimization, CI/CD, and observability. Collaborate cross-functionally and follow Agile practices under mentorship to deliver production-quality software.

Join an agile engineering squad to develop, test, and maintain backend services using Java and Spring. Build unit and integration tests, assist QA, triage and fix bugs, collaborate in Scrum, and learn cloud and CI/CD tooling while pairing with senior engineers.

Develop, deploy, and maintain backend web services and assist with legacy migrations. Collaborate cross-functionally to define requirements, conduct code reviews, troubleshoot issues, and participate in agile processes. Work with Golang, JavaScript, Python, PHP, and database technologies (MySQL, Redshift, Athena, S3). Contribute to CI/CD, help full-stack when needed, and adopt LLM/AI tools to accelerate development.

Lead ServiceNow engineering team for National Security programs: design, deploy, secure, automate, integrate, and sustain ServiceNow on RHEL/Windows. Manage integrations (Cisco NSO, enterprise tools), RMF authorization, performance tuning, automation (Ansible, Terraform, Python, PowerShell), technical documentation, and Agile/SDLC delivery while mentoring staff and driving continuous improvement.

Design, develop, and maintain full‑stack web applications and cloud platforms. Build responsive front ends (React/Angular), secure .NET back ends, work with PostgreSQL/SQL Server, Docker, and AWS. Participate in architecture, code reviews, Agile ceremonies, troubleshooting, and improving engineering standards while collaborating with product, QA, and DevOps.

Lead design, build, and maintain scalable full-stack payment applications (web storefronts, virtual terminal, invoicing). Collaborate with product, design, and architecture; ensure performance, reliability, and secure APIs; refactor existing systems; mentor engineers; participate in on-call and release rotations to support production availability.

Develop, test, debug, and implement .NET/C# web applications using microservices and Angular. Build and optimize SQL Server databases, create and consume RESTful APIs, write tests, collaborate with cross-functional teams, and translate business requirements into technical designs within an Agile environment.

Design, refactor, and build high-performance C++ core infrastructure for vehicle dynamics and Starlink simulations. Lead Monte Carlo and HPC simulation development, optimize performance and reliability, create testing/HITL frameworks and visualization tools, and collaborate cross-functionally to model multi-body physics, environmental effects, and hardware behavior while improving CI, profiling, and testability.

Design, build, and maintain mission-critical internal applications across SpaceX. Own full-stack features from prototype to production, collaborate on architecture and code reviews, optimize performance, and support CI/CD, testing, deployment, and monitoring for high-throughput manufacturing and operational systems.

Lead validation and optimization of 4G/5G RAN software: develop CI/CD test automation for eNB/gNB, analyze UE and network logs to debug RAN issues, build tools and pipelines to optimize RAN performance, and manage lab infrastructure and issue resolution with development teams.

Lead validation and optimization of 4G/5G RAN protocol stack. Build and maintain CI/CD test automation for eNB/gNB, analyze UE and network logs, debug RAN issues, develop tools and data pipelines to optimize RAN performance, and manage lab infrastructure and issue resolution.

Design, build, and maintain scalable, highly available APIs and platform systems for X Developer Platform. Collaborate with product, business, and engineering teams to improve developer experience, support customers, and shape platform architecture for high-throughput distributed systems.

Build and operate large-scale, low-latency search infrastructure including real-time indexing, query execution, and data pipelines. Drive production reliability, performance optimization, incident response, and technical direction for core search systems supporting high write and query loads.

Design, build, and operate large-scale search and retrieval systems. Train and deploy ML ranking models, integrate Grok into search, and scale search infrastructure for millions of users while owning end-to-end solutions.

Build and optimize backend microservices, APIs, and data models for a high-scale global payments platform. Collaborate with client engineers, drive architecture and scalability decisions, support payments, fraud, and compliance initiatives, and maintain testing, monitoring, deployment, and secure data handling for low-latency, high-concurrency systems.