Frontend Web Developer Jobs in Seattle, WA (NOW HIRING)

Apple Business (business.apple.com) is the primary destination connecting Apple directly with enterprises and businesses of all sizes - serving millions of customers around the world. We are building the shared web platform that powers this experience and enables multiple product teams across Apple to ship confidently on a single, high-performance, mission-critical foundation.
Description
As a Senior Web Platform Engineer, you will build the APIs, primitives, and shared capabilities that product teams across Apple rely on to move quickly and ship with confidence. You are someone who thinks of the platform itself as a product - with a deep sense of ownership over the developer experience, the quality of the contracts you expose, and the autonomy you enable for the teams building on top of you. You are genuinely excited about agentic engineering and you bring that curiosity to rethinking how your team and the teams around you design and ship software. You will be a force multiplier: the work you do will directly raise the quality and velocity of every team on the platform.
This is a high-impact, deeply technical role that sits at the intersection of platform engineering and developer experience. You will collaborate closely with engineering leadership, security, and product teams to define what "great" looks like for an enterprise-grade shared web platform at Apple scale.
","responsibilities":"Design and publish clean, well-documented, versioned client APIs consumed by multiple internal product teams - prioritizing ergonomics, backward compatibility, and strong contracts on a mission-critical, externally-facing system.
Partner closely with platform consumers (tenant teams) to deeply understand their workflows, identify friction, and drive platform improvements that increase team autonomy and reduce time-to-ship.
Build self-serve capabilities, shared primitives, and golden-path tooling that allow product teams to ship features independently without requiring deep platform expertise.
Design, build, and maintain the shared web platform for business.apple.com, ensuring it is performant, reliable, and extensible for all teams building on top of it.
Define and enforce platform-wide performance standards; lead initiatives around Core Web Vitals, bundle size, rendering strategies, and caching to maintain a best-in-class end-user experience.
Architect and implement a robust observability stack (logging, metrics, distributed tracing, real-user monitoring) that gives every tenant meaningful signal into their application's health.
Establish reliability standards - define SLOs, runbooks, and incident response playbooks - and champion a culture of operational excellence across the platform.
Mentor engineers across the broader organization and contribute to technical strategy, architectural reviews, and cross-functional planning.
Maintain platform build tooling and CI/CD pipelines that support fast, safe, and consistent delivery for all tenant teams.
Preferred Qualifications
Genuine enthusiasm for agentic engineering - experience building or harnessing AI agents, designing multi-agent orchestration workflows, and applying these capabilities to meaningfully accelerate and reimagine the software development lifecycle.
Experience with micro-frontend architectures, module federation, or multi-tenant web application patterns.
Familiarity with edge computing, CDN configuration, and server-side rendering / streaming SSR strategies.
Experience with accessibility (WCAG 2.1+) at the platform level - building shared components and tooling that make compliance the path of least resistance for tenants.
Background in e-commerce, enterprise SaaS, or similarly high-availability, externally-facing digital commerce platforms.
Experience contributing to or maintaining open-source developer tooling.
Familiarity with platform engineering concepts: internal developer portals, service catalogs, golden paths, and paved-road infrastructure.
Minimum Qualifications
8+ years of professional software engineering experience with a strong focus on front-end or full-stack web platform engineering at scale.
Strong track record designing developer-facing client APIs - versioned, ergonomic, backward-compatible, and well-documented - on production systems with high reliability requirements.
Proven experience building shared web platforms consumed by multiple internal product teams, with a genuine product mindset toward the developer experience.
Expert-level knowledge of modern JavaScript/TypeScript, browser rendering pipelines, and web performance optimization techniques.
Strong systems thinking - you understand how architectural choices ripple through a large, multi-team codebase and can make principled trade-offs.
Excellent written and verbal communication skills; ability to produce clear architectural proposals, API documentation, and runbooks that raise the bar across the engineering organization.
Solid experience with observability tooling and practices: distributed tracing (OpenTelemetry or equivalent), structured logging, metrics pipelines, dashboarding, and alerting.
Deep understanding of web authentication protocols (OAuth 2.0, OIDC, SAML) and experience implementing secure, production-grade auth infrastructure in large-scale applications.
Hands-on experience with CI/CD systems and build tooling (Webpack, Vite, esbuild, or equivalent), with the ability to evolve and maintain platform delivery infrastructure.
Pay & Benefits
At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $171,600 and $302,200, and your base pay will depend on your skills, qualifications, experience, and location.
Apple employees also have the opportunity to become an Apple shareholder through participation in Apple's discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple's Employee Stock Purchase Plan. You'll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses - including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. Learn more about Apple Benefits
Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.