Fullstack Engineer SR | Product & AI-Driven (NW - FS - 20260520)

About Celara Labs: Celara Labs is an agile, tech-forward software engineering enterprise dedicated to building next-generation digital applications and high-impact digital experiences. Operating on a modern, distributed engineering framework, we value technical speed, product-led innovation, and a culture that actively champions advanced AI adoption. At Celara Labs, we empower developers to think like product owners, merging cutting-edge tools with clean architecture principles to deliver outsized user value across global industries.

Position Overview

We are seeking a high-agency, product-oriented Senior Fullstack Engineer with absolute authority-level mastery over modern front-end layers and solid back-end capabilities. This is a fully remote contractor position built specifically for a developer who does not simply write lines of static code, but actively obsesses over pixel-perfect user interface layout, smooth user experience flows, and overall business impact. In this strategic capacity, you will take absolute technical ownership of features lifecycle from concept to deployment, leveraging state-of-the-art AI-assisted workflows to radically compress release cycles and ship resilient software faster.

Key Responsibilities

• High-Fidelity Front-End Engineering: Design, build, and optimize highly responsive, accessible web interfaces using modular UI component ecosystems.
• Product Feature Architecture: Collaborate closely with product management and creative design squads to translate complex user behavior flows into structured, scalable technical specifications.
• AI-Accelerated Development Workflows: Integrate advanced generative AI tools and developer environments directly into your daily routine to supercharge code refactoring patterns, script optimization, and pipeline debugging sessions.
• State & Telemetry Management: Construct robust, performant data fetching and routing architectures using specialized client-side tabular and synchronization frameworks.
• Full-Stack Backend Integration: Extend and maintain robust backend API routers, data verification layers, and business logic adapters when configuring server capabilities.
• Technical Code Governance: Oversee clean structural system scaling, execute strict peer code reviews, and guarantee uncompromised performance metrics across our multi-tenant cloud application blocks.

Required Skills & Qualifications

• Strong, battle-tested professional software development experience operating at a Senior or Lead level track within modern web product environments.
• Expert-level, production-grade front-end development proficiency utilizing React.js and TypeScript architectures.
• Hands-on operational mastery over enterprise-level component environments (such as Ant Design or similar layout libraries) combined with deep command over TanStack infrastructure (Query, Router, Table) tools.
• Strong, practical background using AI-native development toolsets (Cursor, Claude, or GitHub Copilot) to maximize daily delivery velocity and optimize clean code output.
• Product ownership orientation: Proven capability to evaluate system architecture through a commercial lens, optimizing features specifically for client conversion and operational stability.
• Outstanding written and verbal English communication mechanics, optimized for seamless, high-signal asynchronous collaboration across international cross-functional squads.
• Location Context: 100% remote-first contractor flexibility open to qualified full-stack professionals based anywhere Worldwide (Global Remote).

Preferred Strategic Indicators (Nice to Have)

• Solid backend system programming credentials leveraging Python microservices frameworks, specifically utilizing Django.
• Familiarity with typed data parsing systems and strict schema validation components using Pydantic.
• Exposure to continuous integration and continuous deployment pipelines (CI/CD) and automated testing runners inside modern cloud platforms.

What We Offer

• The exceptional professional canvas to steer architectural and product decisions from day one using an ultra-modern tech stack.
• Highly competitive global contractor compensation packages calibrated fairly based on your technical velocity and code evaluation audit.
• 100% remote work freedom inside a highly flexible, trusted digital workspace built for high autonomy.
• A progressive, engineer-first corporate culture that encourages and sponsors continuous tech innovation, AI tools experimentation, and public contribution.