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Added 5 days ago
SM
RQ11600 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Senior Full Stack Software Developer with extensive experience in n-tier web-based applications, Java EE (J2EE), database technologies, cloud-native technologies, front-end…
Added 5 days ago
AI
Full Stack Engineer
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7+ years of backend development experience in Java or Python
Added 5 days ago
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Added 5 days ago
IG
Designer Fullstack Java
Insight Global
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- $60 to $70 CAD / hour
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Experience with Java and Spring Boot for back-end application and microservices design.
Added 5 days ago
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Senior Full Stack Developer
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The Senior Full Stack Software Developer will be responsible for designing, developing, implementing, testing, and maintaining enterprise-level web applications. The role requires extensive…
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Added 5 days ago
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Java Full stack Developer
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Strong programming knowledge of Core Java, OOP, Collections, Exception Handling, and Java 8+ features.
Added 5 days ago
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Full Stack Engineer
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We are Looking for a Intermediate Full stack Developer to join an established technology team.
Added 5 days ago
TI
Full Stack Developer
Themesoft Inc.
Toronto, ON
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8+ years of backend development experience in Java or Python
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Staff Software Engineer - Capital One Travel Tech - Full-stack / développeur principal ou développeuse principale en logiciels
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Added 5 days ago
IG
Full Stack Engineer
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- $60 to $68 CAD / hour
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Experience with Java and Spring Boot for back-end application and microservices design.
Added 6 days ago
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Senior Java Software Engineer
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We are looking for a strong Java Developer with hands-on experience in Java, Spring Boot, Microservices, SQL, and AWS. The ideal candidate should have experience building scalable…
Added 6 days ago
CO
Application & Integration Technical Analyst
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- Full-time
Server-side languages: C#/.NET, Java, Python, PHP
Added 6 days ago
SM
RQ11600 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Senior Full Stack Software Developer with extensive experience in n-tier web-based applications, Java EE (J2EE), database technologies, cloud-native technologies, front-end…
Added 6 days ago
SM
RQ11661 – Software Developer – CRM – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
…back-office staff and integrating the back-office system with the Java/React portal through MuleSoft…
Added 6 days ago
SM
RQ11661 – Software Developer – CRM – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
…back-office staff and integrating the back-office system with the Java/React portal through MuleSoft…
Added 6 days ago
SM
RQ11600 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Senior Full Stack Software Developer with extensive experience in n-tier web-based applications, Java EE (J2EE), database technologies, cloud-native technologies, front-end…
Added 6 days ago
SM
RQ11661 – Software Developer – CRM – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
…back-office staff and integrating the back-office system with the Java/React portal through MuleSoft…
Added 6 days ago
SM
RQ11600 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Senior Full Stack Software Developer with extensive experience in n-tier web-based applications, Java EE (J2EE), database technologies, cloud-native technologies, front-end…
Added 6 days ago
CO
Application & Integration Technical Analyst
City of Saint John
Saint John, NB
- Full-time
Server-side languages: C#/.NET, Java, Python, PHP
Added 6 days ago
TI
Lead Full Stack Developer
Themesoft Inc.
Toronto, ON
- Contract
7+ years of backend development experience in Java or Python
Added 6 days ago
SM
RQ11600 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Senior Full Stack Software Developer with extensive experience in n-tier web-based applications, Java EE (J2EE), database technologies, cloud-native technologies, front-end…
Added 6 days ago
SM
RQ11600 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Senior Full Stack Software Developer with extensive experience in n-tier web-based applications, Java EE (J2EE), database technologies, cloud-native technologies, front-end…
Added 6 days ago
SM
RQ11661 – Software Developer – CRM – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
…back-office staff and integrating the back-office system with the Java/React portal through MuleSoft…
Added 6 days ago
SM
RQ11661 – Software Developer – CRM – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
…back-office staff and integrating the back-office system with the Java/React portal through MuleSoft…

Themesoft Inc.

Full Stack Developer

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Nov 18, 2026
Experience: 8+ years of backend development experience in Java or Python
Posting language: English
Posted: Oct 19, 2026

Original job description

Role: Lead Full Stack Developer

Location: Toronto(Hybrid 4 days Office)

Mode: Contract

Experience: 8+yrs

Responsibilities:

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:

8+ 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.

Nice to have:

Experience with Spec-driven Development
Experience in Camunda 8 development and customization
Experience with Vector Databases
Understanding of RAG architectures
Strategic thinker with excellent interpersonal skills to work across functions and businesses

Regards

Praveen Kumar

Talent Acquisition Group – Strategic Recruitment Manager

praveen.r@themesoft.com| Themesoft Inc

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More about this job

Responsibilities

Lead end-to-end technical delivery and development teams, designing and implementing advanced software solutions aligned with business objectives. Build and productionize generative AI systems, collaborate with stakeholders and data scientists, and guide cross-functional teams in delivering complex projects.

Requirements

Requires 8+ years of backend development experience with Java or Python, strong REST API and microservices skills, and experience with React and micro-frontend architectures. Candidates should understand Agentic AI, LLM integration, prompt engineering, cloud technologies, and PostgreSQL; experience with spec-driven development, Camunda 8, vector databases, and RAG is an advantage.

Skills

Java
Python
Backend Development
REST APIs
Microservices
React
Micro-Frontend Architectures
Agentic AI
LLM Integration
Prompt Engineering
Kubernetes
OpenShift
PostgreSQL
Vector Databases
RAG Architectures
Camunda 8

Visa sponsorship

Not detected in the job text

Hiring contact

Praveen Kumar

Hiring contact email

praveen.r@themesoft.com

Keywords

Java
Python
Backend Development
REST APIs
Microservices
React
Micro-Frontend Architectures
Reusable UI Components
Agentic AI
Large Language Models
Prompt Engineering
Generative AI
GitHub Copilot
Windsurf
Claude Code
OpenShift
Kubernetes
S3 Object Storage
PostgreSQL
Schema Design
Query Optimization
Performance Tuning
Spec-Driven Development
Camunda 8
Vector Databases
Retrieval-Augmented Generation
Data Ingestion
Feature Engineering
Technical Documentation
Cross-Functional Collaboration

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