Top Software Engineer Jobs in Washington DC,

Lead a team of developers to design, architect, and deliver scalable, secure microservices-based enterprise applications. Hands-on coding, code reviews, performance tuning, CI/CD, cloud deployments, stakeholder collaboration, and mentoring. Drive architecture, HLD/LLD, root-cause analysis, and timely delivery in Agile environments.

Design, implement, test, deploy, and operate core protocol features and Rust-based consensus clients. Own full lifecycle delivery, build conformance and adversarial tests, execute safe protocol upgrades, resolve availability/performance issues, and collaborate cross-functionally while maintaining high standards for correctness and security.

The Senior Front-End Engineer will develop and maintain the UI application using React and TypeScript, ensure code quality, debug issues, and collaborate with design teams.

Perform German-language accessibility validation of localized web, app, and document content using native-language screen readers and assistive technology. Verify language codes and metadata, review captions/transcripts, log defects with WCAG/PDF-UA references, provide screenshots/recordings, and collaborate on review calls. Work is project-based with provided scope and test checklists.

Founding iOS Engineer to build the app's core intelligence layer. Must implement production CallKit and on-device continuous Speech Framework recognition, integrate with SwiftUI/CoreData, and optionally add Dynamic Island Live Activity via WidgetKit. Equity-only founding role; product details under NDA.

Design, architect, test, and demonstrate Windchill and ThingWorx solutions for DoD customers. Translate business requirements into technical/process solutions, support integrations, perform testing and debugging, develop documentation, provide end-user training, and collaborate with cross-functional teams and PTC support to deliver PLM/ThingWorx implementations.

Analyze, design, program, test, implement and support application software and system interfaces (notably Epic and lab integrations). Lead projects, train and supervise staff, develop specifications and documentation, evaluate vendor products, coordinate installations, and maintain system improvements and quality assurance.

Implement and maintain technical frameworks and workflows for gameplay systems. Collaborate across disciplines to create reusable tools, ensure system architecture, optimize performance, and document best practices. Serve as a technical expert and advocate for the technical design team to support high-quality game content production.

Build and maintain Python tools for web scraping, automation, integrations (Airbnb, marketplaces), ad automation, chatbots (Chatwoot), workflow automation (Spiffworkflow), automated tests, and data analysis.

Work with senior engineers to develop, test, and maintain full-stack web applications. Build front-end interfaces, implement back-end APIs, write clean code, assist with testing and code reviews, participate in Agile ceremonies, and continuously learn new tools and best practices.