The Opportunity:
We are seeking a highly-skilled Senior Software Engineer to join a team of passionate engineers that are tasked with the unique opportunity to build next-generation platforms that will pave the path for many other teams at Ookla to follow. This team manages Ookla’s flagship enterprise products, the most prominent of which provides a whole new way to combine data from different sources to visualize, analyze, and inspire real-world action to improve connectivity, and is a centerpiece in Ookla’s strategy to bring connectivity insights to a wide array of industries and geographies. The modern era has made telecommunications essential to daily life. While our target markets are government entities that are striving to invest and improve broadband access and performance in their jurisdictions along with network operators that are seeking to maximize their revenue opportunities through thoughtful investments in their network, there are many potential customers that could benefit from our products and services.
To be successful in this mission, we use mapping technologies and high performance database systems to produce highly interactive and performant means of understanding large quantities of data at a glance. To do this we work in informal cross-functional “squads” that include more backend focused engineers or data engineers depending on the project. We use each of these skill sets to problem-solve across the software stack, and you’re welcome to contribute to multiple codebases.
Key Responsibilities:
Develop and maintain robust and scalable web applications using React, Redux (RTK Toolkit), and Vite
Collaborate with cross-functional teams to design, develop and implement new features and functionalities for our data visualization platforms and portals
Write clean, maintainable, and efficient code and adhere to best practices in software development
Conduct code reviews, debugging, and troubleshooting to ensure the quality of the codebase
Help develop, maintain and test RESTful APIs for data processing and handling
Participate in agile development methodologies and contribute to continuous improvement initiatives
Leadership and mentoring opportunities for junior engineers, providing guidance on best practices and coding standards
Problem-solve with teammates to turn desired functionality into implementation plans and then ultimately into working software; take situations with ambiguity and derive clarity
Troubleshoot and resolve complex software issues, identifying and implementing solutions in a timely manner
Eye for detail and knack for noticing and perfecting subtle interactions and fine points that impact user experience
Harness AI tooling for speeding up development while still emphasizing human oversight
Stay up-to-date with emerging trends and technologies in full-stack web development and apply them to our stack
Job Requirements:
Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field
5+ years of professional experience in full-stack web development
Proficient in React, Redux (preferably Redux Toolkit), and Vite with hands-on experience building complex web applications
Strong understanding of modern JavaScript, HTML, CSS, and other front-end technologies
Some experience in designing and developing RESTful APIs using Node.js or other backend technologies
Familiarity with agile development methodologies and continuous integration and deployment (CI/CD) pipelines
Proficient in writing automated tests and understanding/recommending various testing strategies; Vitest, React Testing Library (RTL) experience preferred
Strong communication and collaboration skills
Ability to work independently as well as in a team environment
Excellent problem-solving, algorithmic, and analytical skills
Ability to thrive in a fast-paced, dynamic environment
Experience with TypeScript
Nice to have:
Experience with various mapping libraries like MapboxGL (preferred), Leaflet.js, or OpenLayers
Experience with Material UI (MUI)
Basic understanding of monorepos and the infrastructure required to support them
Understanding of Accessible user experiences in web applications (WCAG 2.2)
Experience using AWS or similar cloud computing environments to build and scale a web application
Familiarity with storing data in relational databases and writing SQL
Experience writing APIs or other code in Go, Python, or Ruby
Comfort with collaborating with a design team, providing suggestions and feedback while iterating on UX designs
About Ookla
Ookla, an Accenture company, is a global leader in connectivity intelligence that brings together the trusted expertise of Speedtest®, Downdetector®, Ekahau®, and RootMetrics® to deliver unmatched network and connectivity insights. By combining multi-source data with industry-leading expertise, we transform network performance metrics into strategic, actionable insights.
Our solutions empower service providers, enterprises, and governments with the critical data and insights needed to optimize networks, enhance digital experiences, and help close the digital divide. At the same time, we amplify the real-world experiences of individuals and businesses that rely on connectivity to work, learn, and communicate. From measuring and analyzing connectivity to driving industry innovation, Ookla helps the world stay connected.
Skills Required
- Bachelor's or Master's degree in Computer Science, Software Engineering, or related field
- 5+ years of professional experience in full-stack web development
- Proficient in React
- Proficient in Redux (preferably Redux Toolkit)
- Proficient with Vite
- Strong understanding of modern JavaScript, HTML, and CSS
- Some experience designing and developing RESTful APIs using Node.js or other backend technologies
- Familiarity with agile development methodologies and CI/CD pipelines
- Proficient in writing automated tests and understanding/recommending testing strategies
- Experience with Vitest and React Testing Library (RTL)
- Strong communication and collaboration skills
- Ability to work independently and in a team environment
- Excellent problem-solving, algorithmic, and analytical skills
- Experience with TypeScript
- Experience with mapping libraries (MapboxGL, Leaflet.js, OpenLayers)
- Experience with Material UI (MUI)
- Basic understanding of monorepos and supporting infrastructure
- Understanding of accessible user experiences (WCAG 2.2)
- Experience using AWS or similar cloud environments
- Familiarity with relational databases and SQL
- Experience writing APIs or other code in Go, Python, or Ruby
- Comfort collaborating with a design team on UX/iteration
Ziff Davis Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Ziff Davis and has not been reviewed or approved by Ziff Davis.
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Healthcare Strength — Employer covers a substantial portion of medical costs and offers multiple plan choices with supportive features such as HSA options, low-deductible access points, and telemedicine. Wellbeing resources and mental health support further reinforce the overall healthcare offering.
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Parental & Family Support — Generous paid parental leave for birth and non-birth parents is complemented by family‑planning support and practical assistance like medical travel and related logistics. Additional caregiving leave and adoption assistance are also described.
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Leave & Time Off Breadth — Flexible Time Off in several regions and dedicated Volunteer Time Off indicate a broad approach to rest and community engagement. Company holidays and paid sick time add to overall time‑off flexibility.
Ziff Davis Insights
What We Do
Ziff Davis (Nasdaq: ZD) is a vertically focused digital media and internet company whose portfolio includes leading brands in technology, entertainment, shopping, health, cybersecurity, and martech.








