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.
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.
About the role
The benefits of joining us
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.
Your AgileEngine journey starts here
2 min
Tell us about yourself
2 sec
Confirm requirements
30 - 60 min
Pass a short test
5 min
Record a short video
→ Introduce yourself on a video, instead of waiting for an interview
Live interview
Ace the technical interview with our team
→ Schedule a call yourself right away after your video is reviewed
Live interview
Final interview with your team
→ Get to know the team you will be working with
Get an offer
As quick as possible







