Senior Software Developer Jobs in Whitby, ON (NOW HIRING)

This is a hybrid position, currently requiring two days per week onsite at our office located at 2 Queen St. E in Toronto.

The Role

TripArc connects travel advisors to a broad network of supplier content, including tours, activities, and experiences sourced through Destination Management Companies (DMCs). DMCs are specialist operators that curate and deliver local experiences in a given destination - think guided tours, transfers, excursions, and curated itineraries. TripArc aggregates content from multiple DMC suppliers through a centralized integration layer, normalizing supplier data into a consistent format that advisors can search, quote, and book through the platform.

We're looking for a senior developer who thrives on autonomy and wants to make a real impact. You'll join our Technology team at TripArc, where you'll tackle the challenge of modernizing a mature travel platform - decomposing legacy .NET systems into Azure-native microservices while keeping the business running smoothly.

This isn't a role where you'll wait for detailed specifications. You'll own problems end-to-end: digging into complex business logic in existing codebases, designing solutions that bridge legacy and modern architectures, and shipping code that serves thousands of travel professionals daily. Some days you'll be untangling decade-old stored procedures and intricate SQL schemas; others you'll be architecting event-driven services on Azure. We need someone who finds that variety energizing.

You'll work within our Agile framework - two-week sprints, daily stand-ups - but we expect you to drive your own work: collaborating directly with QA, Product, and stakeholders; pushing back when needed; and helping teammates grow. Documentation matters here; we use JIRA and Confluence extensively, and your tickets and design docs should be clear enough that anyone can pick up where you left off.

Key Responsibilities

• Develop well-tested, integrated software that meets high development standards - yours and ours.
• Evaluate new functionality requests on a value scale, contributing technical insights to prioritization decisions.
• Actively participate in team meetings and offer recommendations and ideas on design projects.
• Mentor intermediate and junior developers, helping them grow through code reviews and hands-on collaboration.
• Work with Product Managers and architects to estimate, plan, test, integrate, and deliver complex, scalable software.
• Create design documents and documentation to ensure efficient maintenance and knowledge continuity.
• Communicate effectively with key partners and internal users regarding timelines, technical issues, and infrastructure integration.
• Explore and make recommendations based on current trends, techniques, and technologies that could positively impact our platform.

What You'll Do

• Design, build, and deploy features across our stack - from legacy .NET Web Forms and complex SQL schemas to modern .NET Core microservices running on Kubernetes in Azure.
• Lead migration efforts: decomposing monolithic components into loosely coupled microservices while maintaining system reliability and continuity for live clients.
• Write and optimize complex T-SQL queries and stored procedures; navigate and evolve our large, intricate database schemas. Use MongoDB for document storage where appropriate.
• Build and maintain event-driven integrations using NServiceBus and Azure Service Bus.
• Own deliverables through the full lifecycle: design, implementation, testing, Azure Pipelines deployment, and production support.
• Contribute to architectural decisions and establish patterns the broader team can adopt, particularly around microservices decomposition and Azure-native services.
• Support fellow developers through code reviews, pair programming, and knowledge sharing -elevating the whole team.
• Maintain clear documentation in Confluence and keep JIRA tickets updated so the team has full visibility into progress and blockers.
• Collaborate with Product and QA to scope work, estimate effort, and balance priorities within sprint commitments.

What We're looking for

Must have:

• Demonstrated experience mentoring, coaching, or leading developers in a collaborative team environment.
• 5+ years of hands-on experience with C# and the .NET ecosystem, including both .NET Framework (legacy) and .NET Core.
• Strong SQL Server expertise - you're comfortable writing and optimizing complex T-SQL queries, stored procedures, and working confidently within large, intricate legacy database schemas.
• Genuine experience with legacy codebases and a pragmatic approach to modernization - you see old code as a puzzle to solve, not a burden to complain about.
• Solid understanding of microservices architecture patterns and decomposition strategies for migrating from monolithic .NET applications.
• Experience building and consuming RESTful APIs and working with Entity Framework or similar ORMs.
• Working knowledge of Docker, Kubernetes, and Azure Cloud - you don't need to be a DevOps engineer, but you can navigate and deploy within our Azure environment.
• Exposure to CI/CD pipelines, ideally Azure Pipelines.

Nice to have:

• Angular (2+) experience is strongly preferred. Exposure to legacy .NET Web Forms with HTML/JS is a plus.
• Familiarity with message-based architectures; NServiceBus or Azure Service Bus experience preferred.
• MongoDB experience is a plus.

How You Work

• You take initiative. When you see a problem, you investigate it. When requirements are ambiguous, you ask the right questions or make reasonable assumptions and move forward.
• You communicate clearly - whether explaining a technical trade-off to a Product Manager, documenting a design decision, or helping a junior developer work through a problem.
• You're comfortable with ambiguity and can make progress without every detail spelled out.
• You balance speed with quality, knowing when to optimize and when "good enough" actually is good enough.
• You write documentation you'd want to read - because you know future-you (or your teammate) will thank you.

Our Technology

Our platform runs on Azure Cloud, and we're actively modernizing our architecture. Here's what you'll work with:

• Backend: .NET Core microservices alongside legacy .NET Framework applications. We've built proprietary libraries on top of the framework for our internal use. Entity Framework for data access.
• Data: SQL Server (complex schemas, heavy use of stored procedures) and MongoDB for document storage. Azure Data Factory for data orchestration.
• Messaging: NServiceBus and Azure Service Bus for event-driven communication between services.
• Infrastructure: Docker containers orchestrated with Kubernetes, deployed through Azure Pipelines. Git repos for version control.
• Frontend: Angular 17+ with Angular Material, plus legacy .NET Web Forms.
• Tools: JIRA and Confluence for project management and documentation. VS 2022, VS Code, or Rider - your choice.
• AI Tools: GitHub Copilot for AI-assisted development, and Claude, including Claude Code.
• Other: Redis for caching, GraphQL in select services.

Why This Role

You'll have real influence over how we modernize our platform. This isn't a "maintain the status quo" position - we're actively rearchitecting systems, and you'll help shape those decisions.

You'll work with a team that values pragmatism over dogma, where the goal is shipping software that works for our users, not chasing trends for their own sake.

Who Thrives Here

• People who take ownership - of their code, their commitments, and the outcomes.
• Developers who'd rather figure something out than wait to be told what to do.
• Those who see legacy code as a puzzle to solve, not a burden to complain about.
• Team players who make everyone around them better, not just themselves.
• People comfortable in a fast-paced environment where priorities sometimes shift.

Our Culture

We converted to Agile a few years ago and are now a fully enabled Agile department that prioritizes work based on the value it brings to our clients. During each two-week sprint, our developers plan, write, test, integrate, and bug fix while collaborating with skilled Business Analysts, UX designers, and product resources dedicated to the team.

We hire problem solvers, not just technicians. We look for self-motivated individuals with diverse backgrounds who can use the best tool for the job, contribute new ideas, and help bring them to life. Our team is made up of owners: people who are smart, low ego, and accountable for their results. If you want a role with real autonomy, interesting technical challenges, and the chance to shape how a platform evolves, we'd like to hear from you.

Compensation

We provide a competitive compensation package with a strong pay-for-performance rewards approach. Employees have the opportunity to participate in incentive programs and compensation tied to business and individual performance. The expected compensation range for this position is: $110,000 to $120,000.

The actual compensation may vary depending on local market conditions, geography, and relevant job-related factors such as knowledge, skills, qualifications, experience, and education/training.

#LI-Hybrid

We are committed to providing employment accommodation in accordance with the Ontario Human Rights Code and the Accessibility for Ontarians with Disabilities Act. If you require accommodation due to a disability at any stage of our hiring process, please advise us when completing your application.