Themesoft Inc.
Lead Full Stack Developer
Skills
2 days ago
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Important information
Contract type:
Freelance / Contract
Location:
Toronto, ON, Canada
Work mode:
Onsite
Published on:
18 October 2026
What they need
Position : Lead Full Stack Developer
Location : Toronto, On – Hybrid
Job Summary :
- Designs, develops, and oversees the implementation of advanced technical solutions, ensuring alignment with business objectives and adherence to best practices, while managing the end-to-end technical delivery of projects.
- Build Gen AI system frameworks, Prompt Engineering, including designing and refining prompts to optimize LLM outputs, implementing Gen AI systems into production.
- Leads development teams in the delivery of capabilities, providing technical direction and guidance to junior developers and team members and ensuring the successful execution of complex assignments and projects
- Collaborates with business stakeholders and product owners to translate strategic objectives into actionable technical solutions, leveraging advanced knowledge to address unique and high impact challenges.
- You will be responsible for working closely with AI data scientists to support data ingestion and feature engineering, establishing industry best practices, maintaining and managing technical documentations.
- Executes on software development tasks or projects, requiring advanced problem solving, decision making and strategic thinking with some ambiguity.
- Drives decisions on complex issues to develop clear, actionable recommendations for management, ensuring alignment on processes, tools and services with impact across other areas.
- Leverages advanced and creative skills to resolve complex software development related problems, fostering cross functional collaboration to identify and implement innovative solutions.
- Leads and facilitates cross functional collaboration efforts, fostering strong internal relationships across the organization and external partnerships to achieve impactful business outcomes.
Required Skills :
- 7+ years of backend development experience in Java or Python
- Strong backend development experience in Java or Python, including REST API and microservices
- Strong experience with React and modern frontend development, including Micro-frontend (MFE) architectures and reusable UI components
- Hands-on experience or strong understanding of Agentic AI concepts, LLM integrations
- Understanding of prompt engineering and Gen-AI Development tools (GitHub Copilot, Windsurf, Claude Code)
- Experience with Cloud platforms and technologies (OpenShift, Kubernetes, S3 Object Storage)
- Experience working with relational databases particularly PostgreSQL, including schema design, query optimization and performance tuning.
Regards
Patrick Fernandez
Talent Acquisition Group - Strategic Recruitment Manager
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