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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

We offer a people‑first culture where employees can grow, make an impact, and collaborate with caring colleagues.

About the Role

As a Senior Backend Engineer, you will design and optimize high‑performance, multi‑threaded systems, transforming legacy workflows into scalable, thread‑safe architectures. Leveraging deep expertise in C#, SQL, and AWS, you’ll drive concurrency improvements, enhance system throughput, and support large‑scale data processing with technologies like Apache Spark. This role offers strong technical ownership and the opportunity to shape reliable, high‑impact backend systems in complex environments.

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
- Understanding of C++
- Strong understanding of threading models, synchronization primitives, and concurrency debugging
- Proven experience in performance tuning and application profiling for large‑scale systems
- Advanced proficiency in SQL
- Proven experience deploying solutions on AWS
- Strong problem‑solving and debugging skills focused on scalability and reliability
- Upper‑intermediate English level

Nice to Haves

- Hands‑on experience with Apache Spark
- Experience in re‑engineering legacy systems into modern architectures
- Familiarity with microservices design principles and cloud‑native development patterns
- Strong communication and collaboration skills with cross‑functional teams

Perks and Benefits

- Professional growth: Mentorship, TechTalks, and personalized growth roadmaps
- Competitive compensation: USD‑based pay with education, fitness, and team activity budgets
- Exciting projects: Modern solutions with Fortune 500 and top product companies
- Flextime: Versátil schedule with remote and office options

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Postúlate en Kit Empleo: kitempleo.com.ar/empleo/n98hg

📌 Backend Engineer (Senior) (San Fernando del Valle de Catamarca)
🏢 AgileEngine
📍 San Fernando del Valle de Catamarca