Software Developer

Telesat•Ottawa, ON

33d

About The Position

Telesat (Nasdaq and TSX: TSAT) is a leading global satellite operator, providing reliable and secure satellite-delivered communications solutions worldwide to broadcast, telecommunications, corporate and government customers for over 55 years. Backed by a legacy of engineering excellence, reliability and industry-leading customer service, Telesat has grown to be one of the largest and most successful global satellite operators. Telesat Lightspeed, our revolutionary Low Earth Orbit (LEO) satellite network, scheduled to begin service in 2027, will revolutionize global broadband connectivity for enterprise and Government users by delivering a combination of high capacity, security, resiliency and affordability with ultra-low latency and fiber-like speeds. Telesat is headquartered in Ottawa, Canada, and has offices and facilities around the world. The companyâs state-of-the-art Satellite fleet consists of 14 GEO satellites, the Canadian payload on ViaSat-1 and one LEO 3 demonstration satellite. For more information, follow Telesat on X and LinkedIn or visit www.telesat.com We build and operate a mission-critical, globally deployed platform hosted across multi-region (East/West) Azure with zone-redundant regional gateways and both public and private access paths. Mission / Traffic Profile: The system is a central control unit. The primary traffic is control-plane with a tight latency budget, requiring end-to-end attention to performance, reliability, and network-aware design. This distributed network is built on Java microservices and gRPC for high-performance service-to-service communication, coupled with reliable, high-throughput event-driven architecture. You will design, develop, and operate highly available, fault-tolerant, secure services that handle large volumes of concurrent transactions, and help drive resilience and scalability end-to-end.

Requirements

Hands-on microservices development in Java 17+ with production Spring Boot experience.
Experience building distributed, highly available, fault-tolerant systems supporting high-volume concurrent transactions.
Knowledge of Kubernetes, Docker, and Helm for container orchestration and deployment.
Understanding of event-driven architectures integrating with message brokers (Azure Service Bus; Event Hub experience is a plus).
Security fundamentals in distributed systems: OAuth2/OIDC/JWT, SSL/TLS certificates, secrets/certificate handling (Vault or equivalent).

Nice To Haves

Multi-region cloud deployments with failover/failback patterns and zone-redundant architectures.
Networking protocols relevant to distributed microservices (TCP, gRPC, gNMI, and/or real-time communication protocols).
Private connectivity patterns: site-to-site VPN, private DNS, hub-and-spoke network topologies.
Background in satellite, telecom, or network management systems (NMS, ONAP, OAM/IP, SIP/RTP).
Experience with PostgreSQL performance, schema evolution, and caching strategies using Redis.

Responsibilities

Develop, and maintain Java (Java 17+) services within a distributed, event-driven architecture using Spring Boot.
Implement asynchronous workflows and event processing using Azure Service Bus and Event Hub where appropriate.
Package, deploy, and operate microservices on Kubernetes using Helm across multiple environments (dev/test/prod).
Contribute to service decomposition, domain boundaries, and API design with a focus on latency, throughput, reliability, and backward compatibility.
Implement reliable service-to-service communication using REST, gRPC, and messaging protocols.
Support protocol-agnostic ingress suitable for long-lived or reconnect-sensitive traffic.
Help optimize networking concerns (TCP behavior, connection pooling, backoff, circuit breaking) for high-scale traffic.
Contribute to multi-region resiliency design, including regional failover/failback mechanics, validation steps, and automation guardrails.
Embed production readiness into services: SLIs/SLOs, golden signals, standardized observability, failure-mode analysis, and post-incident architectural corrections.
Participate in and improve end-to-end readiness drills: failure scenario walkthroughs, runbook execution, and post-drill improvements.
Design for resilience via health checks, fault management, monitoring, rate limiting, bulkheads, and recovery-on-failure patterns.