Senior Software Engineer – C# ID55642

AgileEngine; Perímetro Urbano Yopal; Hybrid; COP 213,606,750 - 284,809,000; Full time

Benefits offered by this job

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: Flexible schedule with remote and office options

Job summary

AgileEngine in Colombia is seeking a Senior Backend Engineer to design and optimize high-performance, multi-threaded systems. You will re-architect legacy workflows into scalable architectures while using C#, SQL, and AWS. The ideal candidate has over 4 years of software engineering experience, with expertise in concurrency and performance tuning. The position offers professional growth opportunities and involves exciting projects with Fortune 500 companies.

Qualifications

• 4+ years of experience as a software engineer.
• Expert-level proficiency in C# with experience in multi-threaded and parallel processing.
• Strong understanding of threading models, synchronization primitives, and concurrency debugging.

Responsibilities

• Lead the design and development of highly concurrent, multi-threaded applications in C#.
• Re-architect legacy synchronous workflows into scalable, thread-safe solutions.
• 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.

Skills

C#

SQL

AWS

Concurrency debugging

Performance tuning

C++

Apache Spark

Upper-intermediate English

Job description

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 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: Flexible schedule with remote and office options