Senior Full Stack Software Developer

Mecka AI

• $110K — $130K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years of professional experience in full-stack web application development
  • Proficiency in JavaScript/TypeScript and React
  • Experience developing REST/GraphQL APIs with Node.js and/or Python
  • Hands-on experience with relational databases like PostgreSQL
  • Active use of AI development tools to enhance productivity
  • Ability to deliver features across the technology stack

Responsibilities

  • Develop and maintain web applications for data-related tasks
  • Design user-friendly interfaces for non-technical users
  • Build and iterate on backend services using Node.js and/or Python
  • Integrate AI capabilities into internal tools and improve operational workflows
  • Take ownership of features from design through deployment
  • Monitor and enhance application performance in production
  • Balance speed and code quality under guidance

Benefits

  • High impact role building foundational tools for global operations
  • Opportunity for accelerated growth with experienced founders and senior engineers
  • Engagement in real-world software challenges tied to hardware and data
Full Job Description
The Role

We're hiring a Senior Full Stack Software Engineer based in Toronto to build and ship production web applications that power Mecka's global operations.

This role is for an action-oriented builder who has delivered production web applications, writes clean and maintainable code, and wants to take ownership of features end-to-end-across the frontend, backend, and operational integrations. You should be someone who actively leverages modern AI tools to move faster, debug efficiently, and expand your impact.

You'll work directly with operators, data teams, and senior engineers to turn operational requirements into reliable, intuitive software.
What You'll Work On
  • Build & Maintain: Develop web applications for data labeling, data capture, and country/operations management using React (JavaScript / TypeScript) and modern frameworks (e.g., Next.js).
  • User-Centric UX: Design clean, fast, and intuitive interfaces for non-technical users and international teams operating under real-world conditions.
  • Backend Systems & APIs
  • Services & APIs: Build and iterate on backend services using Node.js (Express/Fastify) and/or Python (FastAPI/Django).
  • Operational Logic: Work with core business logic handling permissions, retries, data integrity, and background workflows for data-heavy operations.

Practical AI Integrations
  • Feature Development: Integrate AI capabilities into internal tools where they add real value (e.g., automated data validation, normalization, workflow triggers, search, and internal tooling).
  • Tooling & Workflows: Work with prompt-based systems and structured LLM integrations alongside our research and ops teams.

Feature Ownership & Execution
  • End-to-End Delivery: Take features from design and implementation through testing and deployment.
  • Production Support: Monitor, debug, and improve performance and reliability in production.
  • Pragmatic Mindset: Balance speed, code cleanliness, and correctness with guidance from senior engineering leadership.
Who you are:
  • 5-7 years of professional experience building and maintaining full-stack web applications in production environments.
  • Solid Frontend Skills: Proficiency in JavaScript / TypeScript, React, and modern web frameworks.
  • Solid Backend Skills: Hands-on experience developing REST/GraphQL APIs with Node.js and/or Python.
  • Database & Data Basics: Practical experience working with relational databases (e.g., PostgreSQL) and ORMs.
  • AI Tooling as a Force Multiplier: Active daily use of AI development tools (Cursor, Copilot, Claude, etc.) to prototype faster, debug code, and increase productivity.
  • End-to-End Execution: Ability to work across the stack to ship features and troubleshoot issues independently.
What you bring:
  • Experience building internal tools, dashboards, or workflow-heavy applications.
  • Comfort working alongside non-technical stakeholders (operations, product, leadership) to clarify feature requirements.
  • Good instincts for keeping solutions simple and maintainable rather than over-engineering.
  • Strong team player who communicates clearly, accepts feedback, and enjoys continuous learning.
Even better if you have:
  • Exposure to cloud environments (*AWS, GCP, or Azure**) and standard deployment pipelines (CI/CD, Docker).
  • Basic experience or strong curiosity regarding AI/LLM API integrations (e.g., prompt engineering, document extraction, vector search).
  • Experience with data pipelines, ETL workflows, or handling data-intensive operations.
  • Prior experience in consulting, client-facing roles, or fast-paced startup environments.
  • Familiarity with mobile development (React Native) or design systems.
Why Join Mecka AI?
  • High Impact: Build foundational tools that directly power global robotics and embodied AI operations.
  • Accelerated Growth: Work closely with experienced founders and senior engineers in a high-trust, fast-paced environment.
  • Real-World Execution: Solve challenging software problems tied directly to hardware, data, and global operations.
A Note on Applying

Studies show women and candidates from underrepresented groups often only apply when they meet 100% of the listed qualifications, while others apply after meeting 60%. If you don't check every box above but believe you can do the job, we encourage you to apply - we're looking for capability and trajectory, not a perfect checklist match.

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