About this role.
Builder.io is hiring a Senior Software Engineer for its Publish team to build a full-stack platform used by marketing and content teams to launch production-grade pages and campaigns. The role combines React and TypeScript/Node.js development with scalable API, SDK, plugin, and cloud-infrastructure work. The engineer will help develop AI-driven and agentic content publishing workflows while ensuring reliable integrations across varied customer codebases and design systems. This is a high-ownership position involving technical design, code reviews, customer conversations, technical-debt reduction, and end-to-end delivery. Candidates need 6+ years of full-stack experience, strong API design ability, cloud fluency, and sound product judgment.
Role DNA
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Job Complexity
5/5Pace & Pressure
5/5Autonomy Level
5/5Communication Load
4/5Salary analysis
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Core skills
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Sample interview questions
I would begin by identifying stable, customer-centered use cases and defining a versioned API contract with clear resource models, errors, pagination, authentication, and idempotency where needed. I would keep the SDK thin and predictable, provide strong TypeScript types, document integration patterns, and maintain backward compatibility through deprecation policies. Telemetry, sandbox environments, and representative integration tests would help identify real-world failure modes early.
I would first instrument the rendering path to understand bottlenecks, including network waterfalls, unnecessary client-side work, expensive component trees, and editor-specific state updates. I would apply techniques such as memoization where appropriate, code splitting, caching, incremental loading, efficient state boundaries, and resilient fallbacks for malformed or unavailable content. I would validate improvements with production-like content models and performance budgets rather than relying only on local benchmarks.
I would design agents around constrained, observable actions rather than unrestricted access. Each action should have explicit permissions, validation, audit logs, deterministic fallback paths, and approval gates for high-impact publishing operations. I would also use structured inputs and outputs, evaluate agent behavior against realistic scenarios, and make it easy for users to review, correct, and roll back changes.
I would explain the customer problem and desired outcome, identify the highest-risk assumptions, and turn ambiguity into a small set of decisions with trade-offs. I would align stakeholders through a lightweight design document, deliver a narrow first version, and use feedback and telemetry to iterate. This approach keeps progress moving while avoiding costly commitment to unvalidated details.
I scope work around the customer outcome and explicitly separate must-have reliability requirements from enhancements that can follow. Before launch, I identify edge cases, operational risks, observability needs, and rollback options, then communicate those trade-offs early. After release, I monitor results, address issues quickly, and convert recurring problems into durable engineering improvements.
About the team:
Builder.io’s Publish engineering team builds the platform that empowers marketing and content teams to launch pages and campaigns using production-grade components, without engineering bottlenecks. This is a full-stack platform engineering team. You will work across the APIs, SDKs, and plugins that power Publish, as well as the visual layer that sits on top of it. The platform must integrate reliably into diverse customer codebases and tech stacks, making backend fluency and API design just as important as frontend craft.
We are moving fast toward agentic Publish workflows, where AI can autonomously create, manage, and ship content experiences, and this team will be at the center of building that future. If you are excited about building scalable platform infrastructure that sits at the intersection of developer tooling, content management, and AI-driven automation, this is the team for you.
As a Senior Software Engineer at Builder.io, you will…
- Design and build the APIs, and SDKs that power Publish, ensuring they are scalable, well-documented, and reliable for the engineering teams that integrate them into their own codebases.
- Contribute to the agentic future of Publish, building the backend infrastructure and APIs that will power AI-driven content creation, management, and publishing workflows.
- Act as a technical bridge between the platform and the customer, translating complex enterprise requirements into scalable solutions and shortening the feedback loop between user pain and feature release.
- Navigate the complexity of a visual CMS at scale. You are not just shipping features; you are building a platform that must render reliably and integrate seamlessly across wildly diverse customer tech stacks, hosting environments, and design systems.
- Shape the technical direction of the Publish platform, leading through code reviews, pair programming, and taking proactive ownership of technical debt and quality issues. You will help raise the technical bar through design docs, architectural decisions, and giving substantive feedback on others’ designs.
- Drive drama-free launches, anticipating edge cases, surfacing risks early, scoping projects to the right balance of effort and value, and delivering work that stands up to scrutiny.
You will thrive in this role if you have…
- 6+ years of experience in full-stack web development with a proven track record of shipping complex, production-grade features independently.
- Deep expertise in React and TypeScript/Node.js, with strong instincts for performance, architectural patterns, and the rendering challenges specific to visual editors and component-driven systems.
- Strong API and backend fluency, including experience designing and building scalable REST or GraphQL APIs, and a genuine interest in the platform and infrastructure layer, not just the UI.
- Curiosity about AI and agentic systems. You are excited about building products where AI plays an active role in content workflows, and you want to help shape what that looks like in practice.
- Strong product intuition. You care as much about why you are building something as how, and you are comfortable making product micro-decisions and navigating ambiguity without waiting for perfect requirements.
- A customer-first mindset. You are comfortable speaking directly with enterprise customers, asking the right questions to uncover root problems, and owning the resolution end-to-end.
- Cloud fluency. Experience architecting scalable systems on AWS or Google Cloud.
- High agency. You do not wait for a ticket to be perfectly defined; you seek out the problem, define the solution, and deliver value iteratively.
The items above are a starting point for a conversation, not a hard list of requirements. If this role excites you, we hope you will apply!
The base salary range for this role is €110,000 – €135,000. This role is also eligible for meaningful company equity and benefits.
This position is fully remote and open to candidates in multiple locations. Compensation may vary by country and local market and will be discussed early in the interview process. Final offer amounts are determined based on experience, role-related knowledge, skills, and abilities.
What Builder.io offers you:
- Unlimited time off. 3 weeks is the minimum that we will ask you to take each year
- Mental health days. We encourage you to take at least one per quarter to recharge
- Paid parental leave. 12 weeks of full pay for the birth and care of a newborn child, or for the placement of a child for adoption or foster care
- $500 home office improvement budget. Help get what you need to be comfortable working in a digital-first environment
- $500 annual learning & development budget. Feel supported and empowered to continue developing your skills
- Co-working space reimbursement. Work from any WeWork at anytime with an All Access pass, or reimburse up to $300/month at another local co-working space
- Health Insurance. 100% employer-paid premiums for medical, dental, and vision insurance for employees, and 50% covered for eligible dependents
- Additional Insurance. Depending on location, Builder covers your life insurance, short- and long-term disability, and you’ll have access to supplemental benefits like accident and critical illness insurance
- 401k (for US based team members). Contribute to your financial future
- Real equity. We have a four year vesting schedule with a one year cliff. We also have a ten (10!!) year exercise window 🤯 (yeah, we’re pretty stoked about it!)
About Builder.io:
Builder.io is the collaborative AI development platform where teams and AI agents build, review, and ship together on existing apps and sites. We do it through two products — Fusion and Publish — built to replace the sequential handoffs that have always slowed teams down.
Fusion enables every role across product development to produce production-ready features from your real codebase and design system. Publish empowers marketing to launch pages and campaigns using those same components without engineering bottlenecks.
Trusted by teams at J.Crew, Schneider Electric, and Anheuser-Busch.
Builder.io is committed to growing an inclusive and diverse team. We are an equal opportunity employer. We do not discriminate based on race, ethnicity, color, ancestry, national origin, religion, sex, sexual orientation, gender identity, age, disability, veteran, genetic information, marital status or any other legally protected status.
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