Software Engineer

About us

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. 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

We are looking for a Senior Backend Engineer to 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 have

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

Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps

Competitive compensation

We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities A selection of exciting projects

Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands

Flextime

Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office – whatever makes you the happiest and most productive.