Senior Software Developer
Simfront Simulation Systems Corporation
Senior Software Developer
Job details
Job type
- Full-time
Full job description
About Calian
At Calian, we help organizations overcome obstacles, manage risks, and drive progress. Since 1982, we’ve grown from a small consulting firm into a trusted global company across defence, space, health, nuclear energy, public safety, and government.
We create innovative solutions that tackle complex challenges and help organizations and communities stay resilient, informed, and connected. If you’re driven by purpose and energized by solving real-world challenges, we want you on our team.
Job Type: Full Time
Position Overview
The Senior Software Developer role in our Defence and Space division offers an opportunity to contribute to a growing Canadian technology organization supporting leading global satellite operators. You will join a multidisciplinary team of software developers and systems engineers to design, build, and deploy high‑reliability systems used in mission‑critical environments.In this role, you will exercise significant technical autonomy, applying deep expertise and sound engineering judgment to complex challenges. Working within a small team of 5–7 developers—and within a broader engineering organization of 100+ people—you will help elevate technical quality and mentor less experienced team members.
(This position can be 100% remote from anywhere in Canada)
Responsibilities
Design and develop complex backend software components, ensuring high standards of security, reliability, performance, and maintainability.
Translate requirements into clear technical solutions, identifying risks, dependencies, and edge cases early.
Diagnose and resolve complex integration, performance, and operational issues, providing durable and well‑documented fixes.
Raise technical quality through thoughtful code reviews, architectural contributions, and mentorship of junior developers.
Improve development workflows, including CI/CD, automation, testing practices, and technical documentation.
Collaborate with system engineers, customers, and stakeholders to refine requirements and explain design decisions or trade‑offs.
Support release planning and deployments, contributing to stable operations in mission‑critical environments.
Participate in technical estimation and support proposal development for new customer opportunities.
Qualifications
Bachelor’s degree in Computer Science, Computer Engineering, Engineering Physics, or a related technical field
Minimum 7 years of experience designing and building complex backend systems
Proficiency in Java, Kotlin, or C++
Strong understanding of distributed systems, concurrency, and API design
Experience working in Linux-based development environments
Additional Requirements
Experience in highly available or mission‑critical systems
Experience with containerization and orchestration (Docker, Kubernetes)Familiarity with observability tools (Prometheus, Grafana, ELK, etc.)
Exposure to satellite communications, aerospace, or defence environments
Experience with IaC or automation tools (Ansible)
Compensation
$100,000-150,000
Vacancy
We have 1 available position
At Calian, we do not use Artificial Intelligence (AI) to screen or evaluate candidates. AI tools may support backend administrative tasks, but they do not influence hiring decisions. All evaluations and decisions are made by real people on our recruitment team and hiring managers. All applicants are reviewed and only those chosen for an interview will be contacted by our recruiting team.