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OoklaOO

Senior Full Stack Developer - Downdetector Connect

Ookla is the leading provider of connectivity intelligence, known for its Speedtest platform and commitment to enhancing network performance.

Ookla

Employee count: 501-1000

Salary: 50k-80k USD

United Kingdom only

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Role Overview

As a Senior Developer, you'll have significant autonomy to shape how some of the world's largest telecom operators communicate with consumers and detect issues across their networks. You'll help evolve the platform into a proactive, intelligent system built around Observe - Think - Act workflows, designing autonomous, AI-driven operations that surface insights, trigger actions, and streamline complex network processes at scale.

What You Will Do

Full-Stack Development: Develop and maintain robust, scalable web applications using React, Redux, and modern backend frameworks. Automation & AI Features: Move the platform from reactive reporting to proactive operations by implementing 'Observe-Think-Act' loops for network outage detection and communication.

Why It Might Be a Fit

If you're excited by the challenge of building intelligent systems, solving complex data problems, and driving meaningful impact at global scale, this role offers the scope and technical depth to do your best work.

Requirements

  • 5 to 8 years of professional software engineering experience
  • Experience in mentoring or leadership
  • Strong proficiency in Python (FastAPI or Django) and experience designing scalable RESTful APIs
  • Proficient in React and Redux with hands-on experience building complex, data-heavy web applications
  • Hands-on experience using AWS to build and scale web applications, including containerization (Docker/Kubernetes)
  • Systems Thinker: Strong ability to break down complex manual problems into deliverable, automated technical sub-tasks
  • PLUS: AI Frameworks: Hands-on experience deploying AI agents into production or proven exposure to tools like LangChain, LangGraph, or LlamaIndex
  • PLUS: Experience with anonymization techniques, data privacy and GDPR
  • PLUS: Domain: Understanding of network monitoring, telecommunications data, or performance testing

Benefits

  • Competitive salaries
  • Robust, health and wellness-focused benefits
  • Paid time off
  • Employee Resource Groups
  • Company-sponsored events
  • Regular opportunities for professional growth through educational support, mentorship programs, and career development resources
  • Employee engagement programs and recognition awards

About the job

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Posted on

Job type

Full Time

Experience level

Salary

Salary: 50k-80k USD

Location requirements

Hiring timezones

United Kingdom +/- 0 hours

About Ookla

Learn more about Ookla and their company culture.

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Ookla® is a global leader in connectivity intelligence that provides consumers, businesses, and other organizations with data-driven insights to improve networks and connected experiences. We help our customers efficiently solve their biggest connectivity challenges and drive forward innovation. Ookla is a division of Ziff Davis (NASDAQ: ZD), a vertically focused digital media and internet company whose portfolio includes leading brands in technology, entertainment, shopping, health, cybersecurity, and martech.

With renowned platforms like Speedtest®, Downdetector®, Ekahau®, and RootMetrics®, Ookla combines a deep understanding of network performance analytics with user experiences. Our commitment to neutrality, accuracy, and independence ensures that we provide trusted insights to empower organizations across the globe. With billions of data points collected, we advocate for enhanced connectivity and accessibility in underserved markets, aligning with our mission to key stakeholders aiming to bridge gaps in digital equity.

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Ookla

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