DomainTools

You would design real-time, internet-scale data-processing and infrastructure-management foundations across cloud and on-premises systems while establishing engineering standards. | The role requires at least seven years in software, hardware, or systems engineering, deep architectural knowledge, and substantial experience with large-scale orchestration and internet protocols. | DomainTools is seeking a Principal Software Engineer to join our Infrastructure team. Our team’s mission is to accelerate cross-organizational collaboration as we confront the challenges of collecting, ingesting, processing, searching, alerting and contextualizing internet-scale data for use in threat defense and investigation. DomainTools transforms vast amounts of streaming information about internet infrastructure into real-time threat intelligence. As an engineer on the Architecture team, you’ll work across the company to design, develop, and improve upon the foundations of the company’s technical strategy, to ensure that we can continue to design, develop, and operate internet-scale data systems efficiently, reliably, and securely. Our work touches on every aspect of the system design life-cycle at DomainTools, from early technology evaluation to system design to infrastructure management and operations. This is a high-impact, high-visibility position that requires tenacity, creativity, and strong collaboration skills. If you’re passionate about making the impossible possible in order to make the internet a safer place, we want to hear from you! Job Responsibilities Design and develop a foundation for real-time internet-scale data processing and management. Design and develop a platform for software and infrastructure management spanning cloud and on-prem systems. Develop and maintain observability tooling including logging, metrics, and alerting spanning cloud and on-prem systems. Define technical standards and best practices as a leader in the engineering organization. Reconcile complex, conflicting distributed architecture spanning multiple companies over multiple decades. Provide technical leadership within DomainTools broadly. Strong organizational and interpersonal skills. Must not only to dive deep into difficult technical problems, but bring others along for the ride as well. 7+ years experience in some combination of software/hardware/systems engineering or leadership in technical operations. Experience designing, building, and operating large-scale orchestration systems. Experience working with major internet protocols and standards (DNS, Whois, RDAP, etc.) Experience with and passion for working in the internet security space. Experience stepping across organizational boundaries to solve problems. Strong understanding of architectural trade-offs at different orders of magnitude of scale. Strong technologist, broadly conversant in modern approaches to software engineering, systems engineering, operations, and infrastructure management. Able to articulate and defend designs from architectural first-principals Able to adapt those designs to the realities of a complex business. Strong desire to solve seemingly insurmountable technological and organizational problems. Compensation: $180K - $230K base salary, plus a 15% annual bonus DomainTools is the global leader for Internet intelligence and the first place security practitioners go when they need to know. The world’s most advanced security teams use our solutions to identify external risks, investigate threats, and proactively protect their organizations in a constantly evolving threat landscape. DomainTools constantly monitors the Internet and brings together the most comprehensive and trusted domain website and DNS data to provide immediate context and machine-learning driven risk analytics delivered in near real-time. DomainTools offers a comprehensive benefits package to our employees that includes fully paid medical, dental and vision insurance premiums, a 401k retirement plan with company matching, basic life insurance, flexible PTO and additional well-being benefits. DomainTools embraces diversity, equity and inclusion to its fullest as an equal opportunity employer. We build our teams so creativity and innovation can flourish. We believe inclusivity and equity fosters innovation and growth, and we harness this mindset to drive a culture that serves our employees and our customers. We encourage people of all backgrounds, ages, perspectives and skill sets to apply; and do not discriminate based on age, religion, color, national origin, gender, sexual orientation, gender identity, marital status, veteran status, disability or any other characteristic protected by law.

Develop and maintain web applications using Laravel and React, write testable code, integrate APIs, and participate in design and code reviews. | 3+ years modern web development experience with PHP frameworks and TypeScript, bachelor's degree required. | DomainTools is hiring a Software Engineer to join our Engineering Team. This role is ideal for someone passionate about building high-impact web applications and enterprise-grade cybersecurity products used in mission-critical environments. You will work within a highly collaborative engineering environment alongside experienced developers focused on delivering high-quality, scalable software. The team values productivity, autonomy, and pragmatic engineering practices, with minimal process overhead. Additional Context The Frontend Team at DomainTools is responsible for a React client and a PHP server. This role is primarily focused on working with the PHP server, but engineers will need to work in the full stack. Job Responsibilities Write efficient, maintainable, and testable code following software engineering best practices. Build and maintain applications using best practices for Laravel (PHP) and React (TypeScript). Integrate frontend applications with APIs, backend systems, and databases. Contribute to both new product development and enhancement of existing applications. Participate in code reviews, technical discussions, documentation, and design feedback sessions. Develop expertise in customer-facing products and platform capabilities. 3+ years of experience developing modern web applications. Knowledge of software architecture and experience implementing programming patterns. Strong experience with PHP frameworks such as Laravel or Symfony. Strong experience with JavaScript (ES7+) and TypeScript. Deep knowledge of: Object-oriented, functional, and procedural PHP 7+ API integration and consumption Experience with React 18+ and Redux. Experience with unit and integration testing frameworks such as PHPUnit and Jest. Proficiency with Git and collaborative version control workflows. Experience working with Docker or other container technologies. Pluses Familiarity with Vite configuration. Experience with Kubernetes or container orchestration platforms. Experience with end-to-end testing tools such as Playwright. Familiarity with SQL and relational databases. Familiarity with styled-components (or other CSS-in-JS libraries). Understanding of UX/UI design principles and frontend usability best practices. Experience working within Agile development environments. Bachelor’s degree in Computer Science or a related field.