Programmer
RAE Security
Austin, Travis County99k–99k
Posted 7 hours ago
Staff / Principal Backend Software Engineer
Twenty
Arlington, Virginiacontractor192k–455kPosted 18 days ago
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About this role
About The Company America is under sustained cyber attack. Our adversaries infiltrate our networks, steal our IP, and degrade the digital infrastructure that modern life runs on. They’ve learned—correctly—that those attacks rarely produce consequences. Twenty was founded to change that, by making our adversaries think twice before they attack us. Our vision is American and allied primacy in cyberspace—a future where they cannot contest us, deterrence is assured, and the free world remains secure. Founded in 2024, Twenty Technologies (www.twenty.io) industrializes offensive cyber operations for the U.S. and its allies. Headquartered in Arlington, Virginia, Twenty has raised $168M from Khosla Ventures, Accel, Caffeinated Capital, Friends & Family Capital, Point72 Ventures, General Catalyst, and In-Q-Tel. Mission | On Site | Full Time | U.S. Citizenship Required / No Active Clearance Required Role Summary You’ll design and build backend systems that turn real-time operational data into mission-critical capabilities. This role owns core services that need to be fast, reliable, and secure—operating across cloud and on-prem environments. You’ll make high-leverage architecture decisions, drive technical execution, and raise the bar through mentorship and engineering standards. You’ll partner closely with product, operations, and frontend teams to ship systems that work under real-world constraints. What You’ll Do • Architect and build high-throughput backend services that process real-time operational data. • Lead technical design reviews and choose pragmatic approaches for new features and system improvements. • Design event-driven and distributed systems that are resilient, observable, and performance-tuned. • Define stable APIs for internal and external consumers, partnering with frontend for seamless integration. • Improve engineering excellence through code reviews, standards, testing strategy, and incident practices. • Build and maintain CI/CD workflows that enable r
Read the full description and requirements on the original posting.
Tailor your resume for this Staff / Principal Backend Software Engineer role
Twenty and most employers screen applications with ATS software before a recruiter reads them, and they rank resumes that echo the language of the posting. To stand out for this role, mirror the exact skills, tools, and job title it uses, and make your location (Arlington, Virginia) clear. For software & it roles like this one, recruiters commonly scan for:
- JavaScript
- Python
- React
- AWS
- SQL
- CI/CD
- Docker
- REST APIs
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Build a matching resume — freeFrequently asked questions
Is the Staff / Principal Backend Software Engineer role at Twenty remote?
This role is based in Arlington, Virginia. Check the original posting for any hybrid or remote flexibility.
What does the Staff / Principal Backend Software Engineer role at Twenty pay?
The listed pay is 192k–455k. Salaries vary with experience and location — treat this as a guide and confirm on the original posting.
How do I apply for this Staff / Principal Backend Software Engineer job?
Applications happen on the employer's own site — use the "Apply on company site" link on this page. Before you apply, tailor your resume to the listing so it clears the ATS.
How do I tailor my resume for this Staff / Principal Backend Software Engineer role?
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