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Silverlight was Microsoft's plugin-based framework for building rich interactive web applications, similar to Adobe Flash. Released in 2007, Silverlight powered complex, animated interfaces with strong media capabilities. It used XAML for markup and C# for business logic, offering .NET developers a way to build advanced browser experiences without JavaScript.
Silverlight reached end-of-life in October 2021. Microsoft officially ceased support, and modern browsers no longer support the plugin architecture Silverlight relied on. However, thousands of enterprise applications built on Silverlight remain in production today, particularly in financial services, healthcare, and telecommunications where long technology lifecycles are standard.
The Silverlight developer community in LatAm remains active, particularly in Brazil and Colombia where financial institutions and government systems continue maintaining Silverlight applications. Most Silverlight developers have 8-12+ years of experience and are now focused on modernization and migration projects.
Hire Silverlight developers in two scenarios: maintaining legacy Silverlight applications for financial, healthcare, or government systems where the cost of replacement justifies continued support, and executing modernization projects to migrate Silverlight applications to modern web technologies (Blazor, Angular, React).
Silverlight is not the right choice for any new development. The technology is dead, browsers don't support it, and the talent pool is shrinking. However, if you operate Silverlight systems, finding developers with deep Silverlight expertise becomes increasingly difficult and valuable. A senior Silverlight developer can architect a modernization strategy that minimizes risk and timeline.
Common scenarios: maintaining mission-critical Silverlight systems in regulated industries, planning Silverlight to Blazor migrations (Microsoft's recommended path), modernizing Silverlight media experiences, and gradually decommissioning Silverlight while supporting legacy users. Team composition: Silverlight developers should pair with modern web developers (React, Angular, Blazor), migration architects, and QA specialists who understand legacy system behavior.
Junior (1-2 years, rare): Very few junior Silverlight developers exist today. If you find any, they should understand XAML, C# fundamentals, and basic component architecture. Most junior developers today have been reskilled from Silverlight.
Mid-level (5-8 years): Should architect complex Silverlight applications, optimize performance in rich media scenarios, and understand the limitations of the plugin model. Should be comfortable with Expression Blend and XAML design. Should understand WCF integration for backend communication.
Senior (8+ years): Should be capable of architecting Silverlight modernization strategies, mapping Silverlight features to modern equivalents, and mentoring developers on migration approaches. Should understand the full Silverlight ecosystem, including media, graphics, and data binding patterns.
Soft skills for remote work: Silverlight developers need strong documentation habits and must be excellent communicators about technical debt and deprecation. They should be pragmatic about modernization and comfortable making difficult trade-off decisions on what to preserve vs. replace.
1. Tell me about the largest Silverlight application you've worked on. What was the most complex feature? Look for: scale and complexity details, understanding of performance constraints, specific technical challenges overcome.
2. Describe your experience with media playback in Silverlight. What issues have you debugged? Look for: understanding of streaming, codecs, DRM, adaptive bitrate, browser compatibility issues.
3. Walk us through a Silverlight application you modernized. What was the migration strategy? Look for: pragmatic planning, phased approach, understanding of replacement technologies, communication with stakeholders about effort and risk.
4. Tell us about your experience with WCF and Silverlight service communication. What patterns did you use? Look for: understanding of duplex channels, cross-domain policies, service contracts, error handling.
5. How do you approach maintaining legacy Silverlight systems that can't be fully modernized immediately? Look for: risk management mindset, keeping systems secure and stable, planning long-term modernization, realistic timeline expectations.
1. Design a strategy to migrate a complex Silverlight dashboard to a modern web framework. What would you preserve vs. rebuild? Good answer: data binding patterns map to modern frameworks, reusable business logic extraction, UI component mapping, phased approach. Shows migration thinking.
2. Explain the data binding architecture in Silverlight and how you'd translate it to modern web frameworks. Good answer: XAML binding syntax, value converters, two-way binding, comparison to modern frameworks (Angular reactive forms, Vue reactivity). Shows architecture understanding.
3. How would you optimize a Silverlight application that's struggling with memory usage? Good answer: profiling tools, object lifecycle management, memory leaks in event handlers, unloading unused controls, understanding browser memory constraints.
4. Describe how you'd integrate a legacy Silverlight application with modern REST APIs. Good answer: discusses WCF to REST migration, cross-origin issues, authentication/authorization, testing patterns, backward compatibility approaches.
5. What are the security implications of Silverlight and how would you secure a legacy Silverlight application? Good answer: plugin vulnerabilities, cross-site scripting, authentication mechanisms, data transmission security, compliance requirements for legacy systems.
Task: Document and plan a Silverlight application modernization strategy for a sample legacy Silverlight dashboard. Include component mapping to a modern framework, data layer migration, estimated effort and timeline, risk assessment, and phased approach. Time limit: 90 minutes. No coding required, pure architecture and planning.
Evaluation rubric: Modernization strategy depth (40%), realistic timeline estimation (25%), risk assessment (20%), phased approach clarity (10%), documentation quality (5%). A strong submission demonstrates enterprise-level modernization thinking.
Silverlight expertise is scarce and becoming rarer, commanding premium rates due to specialization:
Comparison to US market: Mid-level US Silverlight developers are increasingly rare and cost $90,000-120,000. Senior: $130,000-160,000+. Staff: $160,000+. LatAm rates offer 40-55% savings, with Brazil and Argentina hosting slightly deeper Silverlight pools than Colombia.
What's included in LatAm staffing: payroll, tax compliance, benefits, equipment, and internet. Direct hiring requires managing legal and compliance independently, potentially adding 15-25% to salary costs.
Latin America hosts significant Silverlight talent due to decades of enterprise outsourcing and long technology lifecycles in the region's financial institutions. Brazil's largest banks and insurance companies continue running Silverlight systems. Colombia and Argentina have strong communities of enterprise developers maintaining legacy applications.
Time zone advantage: Most LatAm Silverlight developers are UTC-3 to UTC-5, providing 6-8 hours of real-time overlap with US Eastern teams. This enables real-time debugging of legacy application issues and rapid modernization decision-making.
The LatAm Silverlight community, while aging, remains competent and engaged. Developers in the region have accumulated 8-12+ years of Silverlight experience and are actively working on modernization projects. English proficiency among Silverlight developers is typically strong (75-85%), as these are senior, experienced professionals used to international collaboration.
Access to experienced Silverlight developers at 40-55% cost savings makes LatAm hiring the practical choice for organizations maintaining Silverlight portfolios and planning modernization.
South's Silverlight matching process focuses on modernization expertise:
1. Understand your Silverlight portfolio and modernization goals. We ask detailed questions about your Silverlight applications, business criticality, modernization timeline, and budget constraints. These details help us match developers with relevant experience.
2. Match from our enterprise legacy specialist network. South maintains a curated pipeline of experienced Silverlight developers across Brazil, Colombia, and Argentina. We've vetted them through architecture design interviews, modernization planning exercises, and reference checks from companies managing large Silverlight portfolios. Average turnaround: 3-5 days for qualified matches.
3. Strategic modernization interviews. You interview candidates using modernization architecture questions. This is where you validate their experience planning and executing large-scale legacy system migrations.
4. Ongoing modernization support. After hire, South monitors the modernization project, handles onboarding, and ensures the developer is delivering migration plans and execution. Our 30-day guarantee includes modernization plan quality and system stability.
Silverlight developers are rare specialists; South ensures you match with someone experienced in legacy modernization. Start your Silverlight developer hiring with South.
Yes, Silverlight reached end-of-life in October 2021. Microsoft ceased support and modern browsers no longer support the plugin architecture. However, thousands of enterprise applications still run Silverlight and will require maintenance and modernization for years.
Yes, but on your timeline. Modern browsers won't run Silverlight, so you need either: migrate to a modern framework (Blazor, React, Angular), keep legacy systems running older browser versions (not recommended), or decommission the application. Most enterprises choose phased modernization.
Blazor is Microsoft's recommended Silverlight modernization path because it uses C# and shares some XAML patterns. However, Blazor isn't a perfect fit for all Silverlight applications. Evaluate your specific needs (media, graphics, interactivity level) and compare React or Angular as alternatives.
Senior Silverlight developers (8+ years) cost $70,000-90,000/year. Specialized architects cost $95,000-115,000/year. These rates are 40-55% lower than equivalent US Silverlight talent, which is extremely rare and expensive.
From initial conversation to offer accepted: typically 10-20 days due to the specialized talent pool. South provides qualified matches within 5-7 days. Technical interviews take 3-7 days. Onboarding begins immediately.
For maintenance on existing Silverlight applications, mid-level developers work fine. For modernization planning and execution, hire senior developers or architects. Their experience with large legacy migrations is essential to success.
Yes. South places Silverlight developers on 3-month contracts, 6-month engagements, and part-time arrangements. Modernization work often benefits from full-time focus, but flexibility exists for specific maintenance and planning phases.
Most are UTC-3 to UTC-5, overlapping 6-8 hours with US Eastern Time. Several work UTC-6 (Mexico/Central America) for US Central Time overlap. All provide morning overlap for collaborative modernization planning.
South runs specialized vetting: Silverlight fundamentals assessment (XAML, C#, plugin architecture), legacy system architecture interview, modernization strategy design exercise, and reference checks from companies operating large Silverlight portfolios. We validate modernization thinking, not just legacy maintenance.
South offers a 30-day replacement guarantee. If the hire isn't meeting expectations within the first month, we provide a replacement at no additional cost. This covers skill mismatches, communication issues, or modernization approach disagreements.
Yes. South handles payroll, tax compliance, benefits administration, and equipment. You pay one all-in rate and we handle operations. Direct hiring is possible but requires managing legal and compliance independently.
South can help you hire experienced modernization architects who'll evaluate your portfolio, map features to modern frameworks, estimate timelines, and plan phased migration. Contact South to discuss your Silverlight modernization needs.
