Software Developer
Confirmed on the employer's own hiring board on Nov 5, 2026. First seen by Alion on Oct 23, 2026.
About Contour
Contour Software has grown from a dozen people to over 2,000 staff across 3 cities, in less than 14 years.
As a subsidiary of Constellation Software Inc., we are proud to be part of a global enterprise software conglomerate that has grown to become one of the top 10 software companies in the world, with employees and customers in 100+ countries. With a broad-based and ever-growing portfolio of market-leading, vertical-market enterprise solutions covering more than 100 industry domains in predominantly mature markets, CSI's recipe creates the perfect environment for professionals to build fulfilling, long-term careers.
What started as an R&D & Accounting back-office, has progressed into a full-service Global Centre serving all functions and departments, at the divisional as well as operating group/corporate level. Today Contour employees, located in Karachi, Lahore & Islamabad, are serving CSI divisions located in time zones spanning the globe, from Sydney to Vancouver. With the global growth of Constellation as the wind in our sails, we are only just getting started!
About Perseus Payments Inc.
Perseus Payments Inc., part of Constellation Software, builds PerseusPay. PerseusPay is a cloud-native payments platform for marine, outdoor power equipment and RV dealers in the US and Canada. The platform is PCI DSS compliant, and the team is building toward an AI-native way of developing software.
Why This Role
This is a chance to build features on a live payments platform used by hundreds of dealer locations. You will own work from an incomplete brief through to production, across backend, UI and payment processor integrations. The platform is secure, PCI-compliant and built to scale.
Role Overview
We are hiring a software developer for the team that builds new PerseusPay features, as distinct from our support and platform work. You will own features from an incomplete brief through to production: shaping the design, building the backend APIs and UI, working through payment-processor rules, and shipping behind feature flags. Requirements on a payments product change often, because processor behaviour, compliance rules, DMS partner needs and dealer feedback all move. We want someone who finds that interesting and keeps delivering without waiting to be told what to do next.
Key Responsibilities
- Take a feature from PRD or user story to production: clarify the scope, design the solution, build, test, and release behind a feature flag.
- Build and maintain REST APIs, background processing and database changes in C# / .NET.
- Build and maintain React UI for the dealer portal, the embedded payment page and the checkout plugin.
- Integrate with payment processor APIs and webhooks, and read processor documentation to find the edge cases that matter.
- Spot gaps, contradictions and missing edge cases in requirements, and bring them to the Product Owner and Director of R&D with a recommended option.
- Re-plan quickly when scope changes, and say clearly what that does to the delivery date.
- Write unit and integration tests, take part in code reviews, and meet our SonarQube and secure coding standards.
- Keep production safe with structured logging, error handling, idempotency, retries and concurrency safety on money-moving flows.
- Support QA with test data and fixes, and support release validation.
- Keep technical notes, decision records and Azure DevOps items current so work is traceable.
- Work with the team’s AI-assisted and agentic development tools, including Claude Code, within our security rules.
Our Tech Stack
- Backend: C# on .NET 8 (moving toward .NET 10), ASP.NET Core Web API, Entity Framework Core, Azure Functions.
- Frontend: React / JavaScript SPA.
- Data: Azure SQL (SQL Server), Redis, Azure Service Bus.
- Azure: App Service, API Management, Front Door with WAF, Functions, SignalR, Key Vault, App Configuration, Application Insights.
- Security and identity: OAuth2 / JWT, Duende IdentityServer, PCI DSS v4.0.1 controls, SonarQube SAST.
- Delivery and observability: Azure DevOps (boards, repos, YAML pipelines), Datadog, feature flags, Postman.
- AI-assisted and agentic development: Claude Code, Claude-based code review and test generation, and project context files and skills shared across the team.
Required Skills & Experience
- 5+ years of professional software development, with strong C#/ .NET and ASP.NET Core REST API experience.
- Strong SQL Server skills: schema design, query tuning, transactions, and an understanding of locking and deadlocks.
- Hands-on Azure experience: App Services, Functions, Service Bus, Application Insights.
- React / JavaScript working knowledge, enough to ship UI features independently.
- A proven record of delivering features with incomplete or changing requirements. Be ready to give examples in the interview.
- Ability to work independently across time zones. You make sound decisions, record them, and escalate with a recommendation rather than a question.
- Strong written English. Most of our collaboration is written, in Azure DevOps, pull requests and Teams.
- Solid engineering habits: unit tests, code reviews, Git branching, CI/CD.
- Familiarity with Agile/Scrum and Azure DevOps.
- Bachelor’s degree in Computer Science, Engineering or a related field, or equivalent experience.
Preferred Skills (Nice-to-Have)
- Hands-on experience with Claude Code or a comparable agentic coding tool, and knowledge of agentic engineering practices: spec-driven development, context engineering, task decomposition, test-driven feedback loops, and critical review of agent output.
- You should be able to describe a feature you shipped this way, including where the agent went wrong.
- Experience with MCP servers, custom skills or sub-agents, multi-agent workflows, and evals for AI-generated code.
- Payment processor integration experience.
- Redis caching and Service Bus patterns.
- Datadog, Azure DevOps pipelines, Terraform awareness.
About You
- You are self-directed. You do not wait for a perfect spec or a daily check-in.
- You are comfortable with unknowns and expect requirements to change. You ask the sharp question early, usually about an edge case or a rule nobody has written down yet.
- You take ownership of outcomes, not just tickets. You think about what happens in production and for the dealer.
- You communicate proactively through short, clear written updates, flagged risks and visible progress.
- You hold the quality bar when money is involved. You treat security, idempotency and auditability as part of the feature.
- You are curious, learn fast, and are open to AI-assisted development. You use it to raise your output without lowering your standards.
Exciting Benefits we offer:
- Market-leading Salary
- Medical Coverage - Self & Dependents
- Parents Medical Coverage
- Provident Fund
- Employee Performance-based bonuses
- Home Internet Subsidy
- Conveyance Allowance
- Profit Sharing Plan [Tenured Employees Only]
- Life Benefit
- Child Care Facility
- Company Provided Lunch/Dinner
- Professional Development Budget
- Recreational area for in-house games
- Sporadic On-shore training opportunities
- Friendly work environment
- Leave Encashment
Disclaimer: At Contour, we attribute our success to the unique contributions of our diverse staff. We’re committed to fostering a culture of respect that thrives on the varied perspectives and experiences of all individuals we recruit, employ, promote, and compensate. Since day one, we’ve adhered to a policy that champions a work environment honoring the worth and dignity of each person while being free from all forms of employment discrimination.
In our continuous effort to promote inclusivity, we extend our commitment to individuals with special needs by providing reasonable accommodations. We actively encourage qualified individuals with special needs to apply for the various openings within our company. Should you require assistance in completing the application process or have any inquiries regarding special facilities, please do not hesitate to contact our HR team. Your unique talents and abilities are welcomed and valued here.