WFC Senior Associate Services Specialist Mexico

About Lab49

Lab49 is an award-winning specialist consultancy that creates bespoke technology solutions for the world's leading financial institutions. We partner with global organizations to design, build, modernize, and support mission-critical technology platforms that power trading, wealth management, capital markets, and enterprise operations.

At Lab49, we bring together world-class engineers, architects, designers, and consultants to solve complex business and technology challenges. We believe in engineering excellence, continuous learning, innovation, and delivering measurable outcomes for our clients.

We are seeking a WCF Services Specialist to join a key client engagement focused on understanding, supporting, diagnosing, and improving a large-scale enterprise platform built on Microsoft WCF technologies.

• Support, maintain, and improve enterprise applications built using Microsoft WCF.

• Analyze existing WCF services, configurations, endpoints, bindings, and communication patterns.

• Investigate timeout issues, communication failures, startup delays, and performance bottlenecks.

• Diagnose complex production issues and identify underlying root causes rather than simply addressing symptoms.

• Analyze service functions, client calls, API signatures, and service contracts.

• Work with full-duplex WCF channels and callback mechanisms.

• Support and improve WPF-to-WCF communication workflows.

• Conduct root-cause investigations across distributed applications.

• Analyze service behavior and system interactions to identify unusual patterns, weaknesses, and undocumented functionality.

• Pull on technical threads that appear inconsistent, unreliable, or difficult to explain.

• Investigate recurring operational practices and determine the technical reasons behind them.

• Examine why certain workarounds exist and validate whether they remain necessary.

• Document platform architecture, service relationships, technical findings, operational behaviors, and known issues.

• Transform historical knowledge and undocumented processes into maintainable engineering documentation.

• Identify low-risk opportunities to improve performance, reliability, maintainability, and operational stability.

• Evaluate why routine service restarts may be occurring and determine whether the issue stems from design flaws, configuration problems, coding defects, resource utilization, or operational practices.

• Recommend targeted improvements that reduce operational burden without introducing unnecessary risk.

• Reduce technical debt through incremental and well-tested changes.

• Contribute to long-term modernization initiatives where appropriate.

• Utilize AI-assisted tools and modern engineering workflows to accelerate investigation, documentation, testing, and knowledge discovery.

• Leverage AI technologies to better understand legacy codebases and service interactions.

• Promote thorough documentation, validation, and testing practices across the platform.

• Help establish an AI-first mindset for engineering analysis, continuous learning, and operational excellence.

In your first 6 to 12 months, success means:

Critical production issues are consistently resolved through root-cause analysis rather than temporary workarounds.

The reasons behind recurring operational practices, including service restarts, are understood, documented, and addressed where appropriate.

WCF services demonstrate improved stability, performance, reliability, and maintainability.

Platform architecture, service interactions, and operational knowledge are documented and accessible.

Technical debt and long-standing issues are identified with clear improvement plans.

Low-risk enhancements are implemented with measurable operational and performance benefits.

Engineering and support teams have greater confidence in diagnosing and resolving platform issues.

 AI-assisted analysis, testing, and documentation practices help reduce knowledge gaps and improve team efficiency.

• Experience modernizing or migrating legacy WCF applications.

• Experience with both .NET Framework and modern .NET platforms.

• Experience with REST APIs and service modernization initiatives.

• Experience in financial services, capital markets, asset management, or other highly regulated environments.

• Familiarity with application monitoring and diagnostics tools.

• Experience working in Agile delivery teams.

• Experience leveraging AI-assisted engineering tools such as GitHub Copilot, Claude Code, Cursor, ChatGPT, or similar technologies.

• Experience using AI to accelerate code analysis, technical documentation, testing, and root-cause investigation.

Why Lab49?

At Lab49, you will work on challenging and meaningful problems alongside talented engineers, architects, and consultants who are passionate about technology and innovation.

You will have the opportunity to influence the stability and evolution of business-critical platforms used by some of the world's most prominent financial institutions. Your work will directly impact the reliability, maintainability, and operational excellence of systems that support real business outcomes.

We value curiosity, technical rigor, ownership, continuous learning, and an AI-first approach to engineering excellence. If you enjoy investigating complex systems, uncovering root causes, improving legacy platforms, and helping teams build a deeper understanding of how their technology works, we'd love to hear from you.