Senior Full Stack Software Developer

Mecka

. Develop and maintain web applications for data labeling, data capture, and country/operations management .

Posted 9/29/2026full-timeToronto • CanadaSenior💰 CA$165,000 - CA$200,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in developing and maintaining full-stack web applications, with a strong focus on integrating AI capabilities and building user-friendly interfaces. Proficient in backend development using Node.js and Python, along with experience in data-intensive operations and cloud platforms.

Highest-signal resume keywords

Full-Stack Web Application DevelopmentNode.js and Express/FastifyPython and FastAPI/DjangoREST/GraphQL API DevelopmentAI Development Tools

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

JavaScriptTypeScriptReactPostgreSQLETL WorkflowsData PipelinesAI/LLM API IntegrationsPrompt EngineeringDockerCI/CD

Soft Skills

Collaboration with Non-Technical StakeholdersProblem-SolvingIndependent Troubleshooting

Tools & Technologies

CursorCopilotClaudeAWSGCPAzure

Industry Keywords

Data LabelingData CaptureOperations ManagementInternal ToolsDashboard Development

Tech Stack

Tools & technologies

AWSAzureDjangoDockerETLGoogle Cloud PlatformGraphQLJavaScriptNode.jsPostgresPythonReactReact NativeTypeScript

About the role

Key responsibilities & impact

Develop and maintain web applications for data labeling, data capture, and country/operations management
Design clean, fast, and intuitive interfaces for non-technical users and international teams
Build and iterate on backend services using Node.js with Express/Fastify and/or Python with FastAPI/Django
Implement permissions, retries, data integrity, and background workflows for data-heavy operations
Integrate AI capabilities into internal tools, including automated data validation, normalization, workflow triggers, search, and internal tooling
Work with prompt-based systems and structured LLM integrations alongside research and operations teams
Take features from design and implementation through testing and deployment
Monitor, debug, and improve production performance and reliability
Work directly with operators, data teams, and senior engineers to turn operational requirements into reliable software

Requirements

What you’ll need

5–7 years of professional experience building and maintaining full-stack web applications in production environments
Proficiency in JavaScript / TypeScript, React, and modern web frameworks
Hands-on experience developing REST/GraphQL APIs with Node.js and/or Python
Practical experience with relational databases such as PostgreSQL and ORMs
Active daily use of AI development tools such as Cursor, Copilot, and Claude
Ability to work across the stack to ship features and troubleshoot issues independently
Experience building internal tools, dashboards, or workflow-heavy applications
Comfort working with non-technical stakeholders to clarify feature requirements
Experience or exposure to AWS, GCP, or Azure and CI/CD, Docker
Basic experience or strong curiosity regarding AI/LLM API integrations, prompt engineering, document extraction, or vector search
Experience with data pipelines, ETL workflows, or data-intensive operations
Prior experience in consulting, client-facing roles, or fast-paced startup environments
Familiarity with mobile development using React Native or design systems

Benefits

Comp & perks

Equity
Health and wellness benefits
High-trust, fast-paced environment
Work closely with experienced founders and senior engineers
Inclusive and supportive candidate experience
Accommodation during the interview process
Equal treatment and opportunity in recruitment, selection, and employment