Sr. Front-End Engineer, Leo Network Observability, Visibility & Analytics team

Amazon Leo is Amazon’s Low Earth Orbit satellite network, with a mission to deliver fast, reliable internet connectivity to customers beyond the reach of existing networks. From individual households to schools, hospitals, businesses, and government agencies, Amazon Leo will connect people and organizations operating in locations without reliable connectivity.

The Leo Network Observability, Visibility & Analytics team builds the systems that provide deep, end-to-end insight into the health, performance, and reliability of this global telecom network.

Our systems span the full Leo service—from satellites and customer terminals to ground gateways, cloud services, and terrestrial network infrastructure—and enable engineers to understand network behavior, rapidly detect failures, and diagnose complex issues across space and ground infrastructure.

We are looking for a talented Software Development Engineer II to design, build, and operate network observability and analytics solutions for an advanced global telecommunications service spanning both space and terrestrial networks.

As a Senior Front-End Engineer on this team, you will build the experiences that turn massive volumes of telemetry, network events and operational signals into clear, actionable visibility. You will design fast, intuitive interfaces that help operators, engineers and leaders answer critical questions in seconds: Is the network healthy? Where is a failure occurring?

What is its customer impact? And how quickly can we identify and resolve it? You will collaborate closely with network engineers, scientists, backend engineers and product partners to make complex, real-time network data easy to explore, compare and act on, from a fleet-wide view down to a single satellite, beam, customer terminal or gateway.

As the front-end technical leader, you will set the architecture, standards and reusable building blocks that let the team ship new views quickly, and your work will shape how Amazon Leo sees and operates a highly distributed telecom network that spans space, cloud and terrestrial infrastructure.

Export Control Requirement

Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.

Key job responsibilities

• Own the front-end architecture of the team's visibility and analytics tools and set their technical direction, including component design, state management, and how data is loaded and rendered.
• Design and build data-heavy views, such as large tables, time-series trends, maps and drill-downs from the global network to a single site, beam or terminal, that stay fast and easy to read at scale.
• Work backwards from network operations, engineering and leadership users to turn ambiguous asks into clear requirements, designs and tradeoffs.
• Partner with backend engineers on API contracts so the UI gets the data it needs quickly and reliably.
• Set the bar for performance, accessibility, testing and code quality across the team's web experiences.
• Build shared component and visualization libraries so new views and metrics ship quickly and stay consistent across tools.
• Make sure interfaces handle partial, late or missing data honestly, with clear loading, empty and error states and no misleading numbers.
• Add front-end monitoring and usage metrics, and use them to decide what to improve next.
• Lead design and code reviews, write design docs, and influence front-end choices across partner teams.
• Mentor engineers, help hire, and grow front-end expertise on the team.
• Use AI-assisted development tools to deliver faster without lowering the quality bar.
• Take part in the team's on-call rotation and operational reviews.

About the team

The Leo Network Observability, Visibility & Analytics team is responsible for making a highly distributed global telecom network understandable and operable at scale.

We build the visibility layer that connects network signals across satellites, customer terminals, gateways, cloud services, and terrestrial infrastructure. Our systems help transform individual telemetry signals into an end-to-end view of network health, enabling faster detection, diagnosis, and resolution of issues.

The problems we solve are inherently distributed and require us to combine software engineering with networking and data science. We are building new capabilities rather than simply applying existing observability patterns to a conventional cloud service.

If you enjoy solving ambiguous problems, making complex data simple to understand, and building interfaces that give people visibility into complex networks, this team offers an opportunity to work on foundational systems for Amazon Leo.

• 4+ years of non-internship professional front end, web or mobile software development using JavaScript, HTML and CSS experience
• 5+ years of front-end developer creating prototypes or wire-frames for enterprise web applications or workflows experience
• Experience developing with MVC/MVM frameworks (e.g. React.JS, AngularJS, Vue)
• Knowledge of web services technologies such as SOAP, HTTP, WSDL, XSD, and REST
• Experience in a broad range of software design approaches and common UX patterns.

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information.

If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.

The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location.

Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits .

USA, WA, Redmond - 168,100.00 - 227,400.00 USD annually