Senior C# Backend Engineer — AWS, Spark, Scalable Systems

A leading software development firm in Colombia is looking for a Senior/Lead Software Engineer to modernize core systems and optimize large-scale data operations. You will design thread-safe applications, leverage Apache Spark for distributed processing, and deploy scalable solutions on AWS. The ideal candidate will have over 5 years in C# and experience with performance tuning and application profiling. This role offers a competitive salary, flexible working hours, and opportunities for professional growth.
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