Software Engineer 4, Javascript Foundations

Netflix; Warszawa; On-site; PLN 240,000 - 320,000; Full time

Job summary

Netflix in Warsaw seeks a senior JavaScript Engineer to help shape the JavaScript foundations that power our UI across the fleet.

You will collaborate with internal teams and the external JS community, build libraries and tooling, and drive adoption of new technologies for Node.js and browser environments. This role emphasizes developer experience, strategic thinking, and cross-team influence.

Qualifications

• Strong knowledge of JavaScript and TypeScript.
• Experience collaborating with internal teams and external communities.
• Ability to build and maintain libraries and tooling for efficient development.

Responsibilities

• Understand how developers use JavaScript at Netflix to create optimal solutions and abstractions.
• Collaborate with internal teams and the JavaScript community to evolve the JavaScript vision at Netflix.
• Provide and integrate libraries, tools, or workflows that enable developers to build JavaScript software efficiently.
• Drive adoption of new technology into existing systems.
• Define and improve dependency management, packaging, and publishing for Node.js.

Skills

JavaScript

Node.js

TypeScript

Collaboration

Leadership

Tools

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

The team anchors on the human-facing elements of technology. These elements are emphasized in our Culture Memo and are applied in our day-to-day work. Code is a very small slice of this team's impact.

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.