Backend Engineer (Senior) Id55642 Para Salvador

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Backend Engineer (Senior) ID55642 – Salvador – AgileEngine, LLC.

AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.

WHY JOIN US

If you’re looking for a place to grow, make an impact, and work with people who care, we’d love to meet you!

ABOUT THE ROLE

As a Senior Backend Engineer , you will lead the transformation of core systems by re‑engineering legacy workflows into highly concurrent, scalable, and thread‑safe architectures. Leveraging deep expertise in C#, concurrency models, and modern design principles, you’ll drive performance optimization and system reliability at scale. This role offers strong technical ownership and the opportunity to shape high‑impact backend systems in a complex, evolving environment.

WHAT YOU WILL DO

• Lead the design and development of highly concurrent, multi-threaded applications in C#;
• Re-architect legacy synchronous workflows into scalable, thread-safe solutions;
• Apply advanced knowledge of threading models, synchronization primitives, and performance tuning to optimize system throughput and minimize contention;
• Design, develop, and optimize complex SQL queries, stored procedures, and large-scale data operations;
• Utilize Apache Spark for distributed data processing at scale;
• Deploy and manage solutions on AWS, ensuring reliability, scalability, and cost efficiency;
• Diagnose and resolve concurrency issues, perform application profiling, and drive continuous improvements in system performance;
• Collaborate with cross-functional teams to define technical requirements, align architecture with business goals, and deliver high-quality solutions.

MUST HAVES

• 4+ years of experience as a software engineer;
• Expert-level proficiency in C# with experience in multi-threaded and parallel processing </b>;
• Understanding of C++ </b>;
• Strong understanding of threading models, synchronization primitives, and concurrency debugging </b>;
• Proven experience in performance tuning and application profiling for large-scale systems;
• Advanced proficiency in SQL </b>;
• Hands‑on experience with Apache Spark </b>;
• Proven experience deploying solutions on AWS </b>;
• Strong problem-solving and debugging skills focused on scalability and reliability;