Senior Software Developer
- Toronto, ON
- Senior
- Posted 6 days ago
or apply from Claude / ChatGPT / Muse
Senior developer on a travel platform used by thousands of professionals, modernising legacy.NET into Azure microservices; hybrid, two days a week onsite.
About the role
The work is modernising a mature platform while it keeps running, with problems owned end to end. Expect a mix of legacy archaeology, new service design and production fixes, in two-week sprints with QA and product.
At a glance
- Pay
- Not stated in the posting
- Location
- Toronto, ON
- Seniority
- Senior
- Skills
- Kubernetes, T-SQL, MongoDB, NServiceBus, Azure Service Bus, Azure Pipelines, Jira, Confluence
- Posted
- 29 Oct 2026
- Last checked
- 3 Nov 2026
What you will do
- Ship features across the stack, from legacy.NET Web Forms to.NET microservices on Kubernetes
- Write, debug and optimise C and T-SQL, including code you did not write
- Lead migration work that splits monoliths into loosely coupled services while keeping reliability
- Use AI-assisted tools where useful and verify their output against how the system behaves
What they look for
- Five or more years of professional C and.NET experience
- Hands-on work with.NET Framework and modern.NET 8 or later
- Confidence tracing problems through legacy code and undocumented business rules
- Clear tickets and design docs in JIRA and Confluence that others can pick up
A typical week
- Two-week sprints with QA, product and stakeholders
- Time spent untangling old stored procedures to find the real business rule
- Designing new services or fixing something in production
- Keeping JIRA tickets and documentation current for the team
How Keywordise applies for you
Alex Demo
[email protected]
From your CV
Yes, fully remote
- Sent
- 09:41
- Attached
- Your tailored CV
- 1Upload your CVAdd your CV once. It takes about a minute.
- 2Tailored to this jobKeywordise writes a CV and a cover letter for this job from your real experience.
- 3The form fills itselfName, email, experience and screening questions, field by field.
- 4Application sentYou get a receipt and follow it in your dashboard.
Apply with Keywordise AI7-day free trial, no card.
Apply from your AI assistant
Connect Keywordise to your assistant once, then send it the prompt. It applies for you.
Claude
- In Claude, open Settings, then Connectors, and choose Add custom connector.
- Name it Keywordise and paste the connector URL.
- Click Connect, log in to Keywordise and approve. Then send the prompt in a new chat.
https://keywordise.com/mcpDisconnect any time in your Keywordise settings.
ChatGPT
- In ChatGPT, open Settings, then Connectors. On plans that need it, turn on developer mode first.
- Add a new connector with the connector URL and choose OAuth. Leave the client ID and secret empty.
- Log in to Keywordise and approve. Then send the prompt in a new chat.
https://keywordise.com/mcpDisconnect any time in your Keywordise settings.
Muse
- Open Muse (muse.ai or the app) and send it the message below.
- If Muse asks how to sign in, answer OAuth. Open the sign-in link it sends, log in to Keywordise and approve.
- Send the prompt. Muse asks before it sends anything.
Add a custom connector called Keywordise. It is a remote MCP server at https://keywordise.com/mcp and uses OAuth. Give me the sign-in link.Muse is available in the US only for now.
Apply to Keywordise job ova7vpmwqqQuestions about this job
Where is this job based?
The posting lists Senior Software Developer as a role based in Toronto, ON, Canada.
What does this job pay?
No pay range is stated in the posting.
What experience is needed?
It is a senior role. The posting asks for: five or more years of professional C and.NET experience; hands-on work with.NET Framework and modern.NET 8 or later; confidence tracing problems through legacy code and undocumented business rules. Skills it names include Kubernetes, T-SQL, MongoDB, NServiceBus.
How do I apply with Keywordise AI?
Press the Apply with Keywordise AI button and add your CV. Keywordise tailors your CV and cover letter to this posting and sends the application for you, with a free 7-day trial and no card.
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