Senior Software Architect: Embedded-to-Cloud, Multi-Tenant

Punta Oy; Helsinki; On-site; EUR 70,000 - 110,000; Full time

Job summary

Punta Oy is seeking a Software Architect to lead the architecture of our Smart Locker platform, spanning embedded devices to cloud services as we scale internationally. The role intersects embedded engineering, backend development, and cloud infrastructure, with emphasis on secure, scalable design and cross-team collaboration.

You will define ADRs, review code, and act as a technical sparring partner across embedded and backend teams, ensuring robust, well-documented systems that support growth

Qualifications

• Extensive experience in software architecture for embedded systems and cloud platforms.
• Ability to define ADRs and document architecture decisions for complex systems.
• Experience with multi-tenant isolation, device-to-cloud topologies, security and infrastructure-as-code.

Responsibilities

• Design and document end-to-end system architecture from embedded devices to cloud services, including ADRs.
• Define device-to-cloud communication, security and device identity for microcontroller-based products, including secure boot and OTA updates.
• Architect multi-tenant, event-driven cloud systems on Google Cloud Platform (Cloud Run, Pub/Sub, IAM, Cloud SQL, Firestore).
• Own infrastructure-as-code and CI/CD architecture across Terraform, Ansible, Kubernetes and GitHub Actions.
• Lead code reviews and set technical quality standards across embedded (C/C++) and backend (Python) codebases.
• Evaluate architecture trade-offs and communicate their cost and risk implications to the business.
• Draw the line between implementation-level decisions and architecture decisions, and document recurring questions for the team.

Skills

Software architecture

Embedded systems

Cloud platforms

Python backend

C/C++

CI/CD

Code reviews

Documentation (ADRs)

Security architecture

English communication

Tools

Terraform

Ansible

Kubernetes

GitHub Actions

ESP-IDF

Zephyr

GCP services

Cloud Run

Job description

Punta Oy is seeking a Software Architect to lead the architecture of our Smart Locker platform, spanning embedded devices to cloud services as we scale internationally. The role intersects embedded engineering, backend development, and cloud infrastructure, with emphasis on secure, scalable design and cross-team collaboration.

You will define ADRs, review code, and act as a technical sparring partner across embedded and backend teams, ensuring robust, well-documented systems that support growth