Lead Full-Stack Engineer (Next.JS + Node.JS)

At Blazity, we are a team of React.js and Next.js experts focused on creating API-first products. We build long-term partnerships with our clients, serving as their trusted development partners. Our work involves optimizing apps, stores, and websites, implementing new features, and automating workflows to deliver outstanding results.Project Description

The project focuses on building and expanding a translation management tool for websites operating across multiple language regions. The system will enable efficient handling of localized content and automate translation workflows using AI.At the core of the solution is the integration of the tool with multiple CMS platforms to synchronize content, translations, and metadata across environments.

Our requirements

Core stack & build skills

• Expert in TypeScript, React, Node.js; comfortable designing small backend services.

• Experience with headless CMS, preferably creating connectors/plugins:

• Sanity plugin development (React tooling, schemas, GROQ).

• Builder.io extensions (app tabs/editor extensions), plus experience hosting external JS bundles and mediating Admin API via backend.

• APIs & data: REST/GraphQL, schema discovery, content modeling, webhooks/eventing, write-back flows across CMSs.

• Nice-to-haves

  • Working knowledge of AEM constraints and deployment paths; comfort navigating vendor tooling.

  • Some PHP exposure (useful for pairing with the Drupal freelancer).

Orchestration & leadership

• Acts as a counterpart to the client’s engineering manager: turns requirements into technical plans, maintains the integration roadmap, and reports progress/risks clearly.

• Frames each connector: defines scope, acceptance criteria, tech stack, and the exact developer profile needed

• Sets up parallel workstreams: briefs additional implementers, reviews code, standardizes patterns and enforces quality gates.

• Owns security & secrets strategy, CI/CD, and release/rollback plans.

Scope of responsibilities

• Design and implement integrations between the tool and various CMS platforms

• Develop custom plugins and extensions using React, Node.js, and TypeScript.

• Build small backend services for authentication, API mediation, queue processing, and webhook handling.

• Define scope, acceptance criteria, and technical requirements for each connector/integration.

• Manage and coordinate external contractors

• Maintain the technical roadmap, report progress and risks.

• Design and manage security and secrets strategy

• Set up and maintain CI/CD pipelines, release, and rollback strategies.

• Collaborate with the Project Manager on technical solution design and integration architecture decisions.

What we offer

We may not have fruit Thursdays or online meditation sessions, but you might appreciate:

• 29 paid days off

• Health insurance fully covered by us

• Sports card fully covered by us

What Makes Us Special?

📈 Our team has a genuine impact on the company’s decisions and direction.

✨ No bureaucracy – we keep things simple and efficient.

🗺️ Remote work from Poland

⏳ Flexible working hours – fit your schedule to your life.

🍕 Fun social events to connect with your teammates.

🤝 We value feedback and foster an open, supportive environment.