Upstaff

NewBe an early applicant On-siteNorth AmericaContractLead

15 hours ago

Senior Software Developer / Full Stack Technical Lead

Agentic AI Agile AI API Automation +35 skills

Upstaff is staffing a Government of Ontario contract role: a senior full-stack developer / technical lead, 100% onsite in Toronto, who designs and delivers CRM, case management, and workflow automation solutions using Dynamics 365, Power Platform, Dataverse, Azure, Node.js/React, .NET/C#, and Java, while leading architecture, code reviews, and mentoring.

NewBe an early applicant On-siteNorth AmericaContractSenior

15 hours ago

Senior Front-End Software Developer – GIS / Web Mapping

Accessibility API ArcGIS CSS Design Patterns +10 skills

Contract assignment (Nov 2, 2026 – Jan 15, 2027) via Upstaff for the Government of Ontario: a senior front-end developer designs, customizes, and deploys interactive GIS web-mapping applications onsite in Toronto, working mainly with ESRI tooling — ArcGIS Maps SDK for JavaScript, Geocortex Viewer for HTML5, VertiGIS Studio — plus JavaScript, TypeScript, React, and HTML/CSS.

6 days ago

Software Developer - Full Stack

New North America

Accessibility Agile AKS API Automation +38 skills

Upstaff is hiring three senior full-stack developers for an Ontario government Community Services Cluster project in Toronto: designing, building, and maintaining enterprise n-tier Java EE web applications (Spring, JSF, React, Oracle 19c), deployed cloud-natively on Azure/AKS with DevOps practices across the full SDLC.

6 days ago

Software Developer - CRM - Senior

New North AmericaSenior

Accessibility Active Directory Agile Analytics Angular +35 skills

Senior developer building and customizing Microsoft Dynamics 365 CRM applications for Ontario government clients: custom entities, plug-ins, Power Platform/Power Apps solutions, Azure integrations, and Power BI reporting using C#, JavaScript, .NET, and TypeScript. Onsite in downtown Toronto five days per week.

Open 84d RemoteEuropePart-time

2 months ago

Interview Engineer - Ruby (Full-Stack)

Ukraine

Conducts live technical interviews with software engineers via an AI-powered hiring platform, assessing coding skills and providing feedback using Ruby/Rails and frontend tools.

AI Candidate Experience JavaScript Rails React +1 skills

2K – 4K $ / mo

Open 98d RemoteEuropePart-time

2 months ago

Interview Engineer - Java (Full-Stack)

Ukraine

Conduct live technical interviews with software engineers via an AI-powered hiring platform, assessing coding skills and providing structured feedback using Java and frontend technologies.

AI Candidate Experience Java JavaScript React

Open 98d RemoteEuropePart-time

2 months ago

Interview Engineer - Python (Full-Stack)

Ukraine

Conduct live technical interviews with software engineers globally, assess coding skills and problem-solving, and provide structured feedback using a Python-based AI interview platform.

AI Candidate Experience JavaScript Python React

API Api Design Automation Data Quality Distributed Systems +10 skills

3 months ago

Senior full-stack or integration engineer (Go, React) for PropTech

Open 96d WorldwideSenior

Senior full-stack or integration engineer builds and maintains Go backend services and React frontends that connect a PropTech platform to SAP systems, focusing on data synchronization and operational workflows.

3K – 6K eur / mo