Software Engineer L4/5, Javascript Foundations

Netflix Services Poland sp. z o.o.; Warszawa; On-site; PLN 260,000 - 420,000; Full time

Job summary

Netflix is seeking a JS Foundations engineer in Warsaw to advance the developer experience for JavaScript across Netflix’s browser and server platforms.

You will collaborate with internal teams and the wider JS community to promote best practices, provide tooling, and simplify complex architectures, while driving adoption of new technologies in our Node.js ecosystem.

Qualifications

• Understanding developer experiences with JavaScript across platforms.
• Ability to define and promote best practices in JS tooling.
• Experience collaborating with multiple internal teams and external communities.

Responsibilities

• Deeply understand how developers use JavaScript at Netflix to create optimal solutions and abstractions.
• Collaborate with teams to shepherd and evolve the JavaScript vision at Netflix.
• Provide and integrate libraries, tools, or workflows that enable developers to build JavaScript software efficiently.
• Reconcile internal needs with external ecosystem trends.
• Define and improve dependency management, packaging, and publishing for Node.js.

Skills

JavaScript

Node.js

TypeScript

Web performance

Tools

npm

Webpack

Babel

Job description

Netflix is one of the world's leading entertainment services, with over 300 million paid memberships in over 190 countries enjoying TV series, films and games across a wide variety of genres and languages. Members can play, pause and resume watching as much as they want, anytime, anywhere, and can change their plans at any time.

Who We Are

We are the JavaScript Foundations (JSF) team in Warsaw. We are key partners in building the "UI Paved Road" at Netflix, operating within a global, virtual organisation that shepherds JavaScript across the entire company — from the browser to Node.js services powering our studio and streaming systems.

Our Mission

Our product isn't a single app — it’s the developer experience itself. While our sibling teams focus on specific layers of the stack — Node.js Platform on server runtime, UI DevEx on browser runtime, and Design Systems on visual components — we tackle the foundational language-level challenges that unify them all. We own the strategy for dependency management, supply chain security, and TypeScript, ensuring the ecosystem remains healthy, secure, and modern across both browser and server.

Why It Matters

At our scale — serving hundreds of millions members — "foundational" means high-impact. Whether it’s automating annual Node.js LTS migrations for thousands of services or defining the patterns for how we share code across the fleet, we measure our success by the collective velocity of every UI engineer at Netflix. We tackle language-level problems so they can focus on entertaining the world.

About This Role

• Deeply understand how developers use JavaScript at Netflix to create the optimal solutions and abstractions for their use cases, and to help drive and evolve recommended practices
• Collaborate with teams internally and in the JavaScript community to shepherd and evolve the JavaScript vision at Netflix
• Provide and integrate libraries, tools, or workflows that enable developers to build JavaScript software efficiently
• Reconcile the needs of our internal ecosystem against the trends of the external ecosystem
• Define and improve the dependency management, packaging, and publishing story for Node.js
• Address complex architectural problems with simple, intuitive designs
• Drive adoption of new technology into existing complex systems

Excelling In This Role

You collaborate effectively with a variety of stakeholder groups: customers, partners, and the external JavaScript community.

You build and maintain strong relationships across stakeholder groups through continuous feedback loops to ensure high alignment in our investments.

You create clarity and drive alignment across stakeholder groups on technical and non-technical initiatives.

You are a curious and proactive learner that seeks to minimize assumptions and seeks to deeply understand before writing code or taking action.

You thrive in an ambiguous environment and can self-manage and self-prioritize your time, energy, and resources.

You are a storyteller and can weave a narrative joining the Netflix ecosystem with the external ecosystem.

Inclusion and Diversity

Inclusion is a Netflix value and we strive to host a meaningful interview experience for all candidates. If you want an accommodation/adjustment for a disability or any other reason during the hiring process, please send a request to your recruiting partner.

We are an equal-opportunity employer and celebrate diversity, recognizing that diversity builds stronger teams. We approach diversity and inclusion seriously and thoughtfully. We do not discriminate on the basis of race, religion, color, ancestry, national origin, caste, sex, sexual orientation, gender, gender identity or expression, age, disability, medical condition, pregnancy, genetic makeup, marital status, or military service.

About Netflix

At Netflix, we want to entertain the world. Whatever your taste, and no matter where you live, we give you access to best-in-class TV series, documentaries, feature films and games. Our members control what they want to watch, when they want it, in one simple subscription. We’re streaming in more than 30 languages and 190 countries, because great stories can come from anywhere and be loved everywhere. We are the world’s biggest fans of entertainment, and we’re always looking to help you find your next favorite story.