Senior Software Engineer - Canada Only

About Technosylva Technosylva is a global leader in wildfire and extreme weather risk mitigation software. The Company’s market-leading solutions, enhanced by AI and machine learning capabilities, provide real-time and predictive insights to support electric utility, insurance and government agency customers. Technosylva has provided critical solutions for the past 26 years. In 2022 the organization entered a period of significant growth and transformation with investment from TA Associates, a leading growth PE firm, scaling to about 225 employees and offering its product in over 10 countries. In 2024 General Atlantic, a leading global growth investor, announced a strategic growth investment in Technosylva to support the company in its mission. Role Overview We are hiring a backend-focused Senior Software Engineer to build and optimize the high-performance services and compute models at the core of our platform. This role combines strong systems and backend engineering with advanced numerical and parallel-computing expertise.  You will design robust services and APIs while also writing the highly optimized, concurrent code that makes large-scale simulation fast and accurate. It is an ideal fit for an engineer who is equally comfortable reasoning about service architecture and squeezing performance out of compute- and memory-intensive workloads. Responsibilities - Design, build, and maintain backend services and APIs (REST/gRPC or equivalent). - Model, optimize, and maintain relational and non-relational databases — schema design, query tuning, and data integrity. - Implement and troubleshoot inter-process communication (IPC, messaging, and service-to-service protocols). - Develop primary backend systems in C# and Java. - Design and implement highly optimized compute models in C++. - Apply synchronization, concurrency, and multi-processing techniques to maximize throughput and correctness. - Profile, benchmark, and optimize performance-critical code paths. - Translate mathematical and algorithmic requirements into efficient, production-grade code. - Participate in architecture decisions, code reviews, and technical mentorship. - Write clean, testable, well-documented code and contribute to CI/CD practices. Requirements Required - Strong proficiency in C# and Java for backend development. - Strong C++ skills for high-performance compute work. - Solid understanding of concurrency, synchronization primitives, threading, and multi-processing. - Strong mathematical proficiency — numerical methods, linear algebra, or applied math relevant to compute models. - Experience with API design, database design, and IPC mechanisms. - Proven ability to profile and optimize compute- and memory-intensive workloads. Preferred Qualifications - Experience with parallel and high-performance computing — multithreading at scale, SIMD/vectorization, GPU (CUDA/OpenCL), or distributed compute (MPI). - Background in scientific, geospatial, simulation, or physics-based modeling domains. - Familiarity with cloud infrastructure and containerized deployment (AWS/Azure/GCP, Docker, Kubernetes). - Experience building and operating low-latency, high-throughput data or compute pipelines. - Working knowledge of observability, testing, and performance-regression practices for production systems.