Top Software Engineer Jobs in Calgary

Develop and maintain backend services and database layers for a Password Safe product using C#/.NET. Design, implement, and review scalable, secure APIs and systems; write and review tests; collaborate with product and cross-functional teams; participate in research spikes and AI-driven design; ensure reliability, performance, and secure coding practices.

Design, build, and operate identity, authentication, and authorization platforms (user management, authN, authZ) at scale. Partner with security to ensure SOC2/GDPR-compliant, secure-by-design systems. Deliver APIs and self-service tooling (GraphQL/gRPC/REST), improve observability, testing, and reliability, and drive roadmap and execution across time zones.

Design, build, and operate scalable backend services (primarily Python/Flask) for restaurant partners. Own projects end-to-end, identify high-impact opportunities, collaborate across product/design, ensure quality, monitoring, and performance at scale.

Develop, integrate, and unit test features for Nokia's Service Router OS. Collaborate with product managers and QA to gather requirements, troubleshoot and perform root cause analysis, and take ownership of modules while working cross-functionally to deliver high-quality embedded software.

Own and deliver end-to-end backend and platform systems that move real money. Collaborate with Product and Design to define scope, build reliable production services, participate in on-call and incident response, and improve team tooling and processes.

Build and maintain scalable, cloud-native APIs using .NET. Enhance core platform components, lead architecture and testing discussions, optimize telemetry and performance, collaborate cross-functionally, conduct code reviews, and mentor team members.

Design and develop scalable, high-performance data and API infrastructure for real-time processing. Mentor engineers and collaborate with teams to enhance AI model evaluations.

The Full-Stack Product Engineer will design and develop AI-focused products, manage the feature lifecycle, and advocate for process improvements.

The role involves designing and building data pipelines for analyzing user feedback on AI models, ensuring data quality and infrastructure scalability.

Build, maintain, and evolve Mozilla’s Internal Developer Infrastructure Platform: CI/CD, observability, Kubernetes optimization, environment bootstrapping, and cost optimization. Lead technical decisions, create Claude skills and agentic workflows to boost developer productivity, mentor teammates, write proposals, and deliver cross-functional platform features while ensuring usability, maintainability, and safe production paths.

Lead architecture and evolution of scalable, fault-tolerant backend systems powering real-time AI agents and conversation intelligence. Design data storage and retrieval, partner with ML engineers to operationalize AI, drive production performance, cost efficiency, observability, and mentor senior engineers while owning production reliability.

The role involves testing embedded systems software and desktop applications, defining testing strategies, developing protocols, and ensuring quality adherence in regulated environments.

Develop AI-powered features, design APIs, integrate AI/ML models, and enhance developer experience for ClickHouse's platform.

The Senior Software Engineer will enhance ClickHouse's cloud platform with Postgres capabilities, managing database clusters and contributing to operational tooling. Responsibilities include backend service design, API development, and collaborating with teams for performance and reliability.

Design and build high-performing web applications on a next-generation platform. Collaborate with product, UX, and engineering teams to implement microservices and microfrontends, troubleshoot complex issues, drive CI/CD and quality practices, mentor teammates, and champion clean code, usability, and performance.

Lead transaction reconciliation efforts, develop scalable ledger infrastructure, implement payment flows, and own backend platform projects end-to-end.

Design, build, and optimize high-performance AI infrastructure systems to support intelligent agents, ensuring reliability and scalability for millions of users.

As a Senior Backend Engineer, you'll design scalable backend systems, build foundational architecture, and manage complex projects within a voice AI-driven platform.

As a Senior Full-Stack Engineer at Retell AI, you'll develop scalable systems and intuitive interfaces, bridging backend integrations with frontend experiences, focusing on voice automation solutions.

The Staff Software Engineer will design and implement core platform development, improve system foundations, and lead technical initiatives to enhance AI automation deployment across organizations.

Design, develop, and optimize data infrastructure, focusing on GCP, ETL/ELT workflows, and data governance, while collaborating with cross-functional teams.

The Senior Software Engineer will lead application development projects, enhance user-facing applications, and implement best software practices while collaborating on product direction.

As a Senior Software Developer, collaborate with teams to build scalable systems that improve healthcare outcomes, maintaining quality and fast iteration in development practices.

Build high-performance, scalable simulation infrastructure and tooling for autonomous vehicle development. Design systems for scenario generation, simulation execution, synthetic data, and reinforcement-learning workflows. Collaborate with ML, perception, and controls teams to improve realism, performance, and validation pipelines while writing production-quality C++ and Python code, contributing to architecture, testing, and documentation.

The role involves developing and testing software stacks for networking devices, including embedded firmware and device drivers, for automotive applications.