Snr. Software Engineer

Senior Software & Systems Engineer – Technical Lead

Location: Halifax/Dartmouth, Nova Scotia
Work arrangement: On-site minimum four days per week
Engagement: Three-month contract with potential for permanent employment
Contract rate: $75 per hour

About Invisipay

Invisipay is developing an autonomous cashier-less retail platform integrating mobile applications, cloud services, edge computing, computer vision, RFID, payments and controlled-entry systems.

We are seeking a hands-on Senior Software & Systems Engineer to lead a small engineering team while contributing directly to the platform’s development, integration, deployment and reliability.

Responsibilities

• Lead a small team of software and AI engineers.
• Establish technical priorities, assign work and monitor delivery.
• Review code and ensure consistent engineering standards.
• Assess and document the end-to-end system architecture.
• Provide hands-on development and systems-integration support.
• Integrate mobile, backend, database, cloud and edge components.
• Manage deployments from GitHub to Google Cloud Platform.
• Develop and troubleshoot APIs, databases and messaging services.
• Configure Linux services, Docker, systemd and MQTT.
• Support PostgreSQL, Cloud SQL and Cloud Run.
• Integrate Raspberry Pi, NVIDIA Jetson and network-connected devices.
• Improve application reliability, session management, monitoring and recovery.
• Establish secure CI/CD, secrets management, logging and alerting.
• Diagnose issues across software, cloud, network and hardware boundaries.
• Maintain clear technical and operational documentation.
• Provide progress updates, identify risks and recommend practical solutions.

Required Qualifications

• Minimum 10 years of professional software and systems engineering experience.
• Demonstrated experience leading a small technical team.
• Strong backend development and systems-integration experience.
• Advanced knowledge of APIs, databases and messaging protocols.
• Strong experience with GCP or AWS.
• Experience with Linux, Docker and production deployments.
• Experience with PostgreSQL and cloud-hosted databases.
• Knowledge of MQTT, networking, device communication and edge systems.
• Experience with GitHub, CI/CD pipelines and secrets management.
• Ability to review code and guide developers through complex technical problems.
• Ability to independently assess unfamiliar systems and take ownership of delivery.
• Strong communication, documentation and technical leadership skills.

Experience with Raspberry Pi, NVIDIA Jetson, IoT systems, payment integrations or computer-vision environments is considered an asset.

This is a hands-on leadership position. The successful candidate must be comfortable writing and reviewing code, solving integration problems and guiding a small team toward reliable delivery.

Applicants must be available to work on-site in the Halifax/Dartmouth area at least four days per week.