About this role

IoT Cloud Engineer (AWS/Azure/GCP) Holisticon Connect Daily tasks: - You will work on a complete node-to-cloud architecture, designing cloud-native services and scalable communication patterns that connect embedded devices, cloud platforms, and management applications. A key part of the project involves building secure device identity and provisioning mechanisms based on X.509 certificates, TLS/mTLS, and modern authentication frameworks.

Working closely with embedded engineers, you will help develop a new Network Management System (NMS) responsible for device registration, heartbeat monitoring, telemetry ingestion, configuration deployment, device state management, and command execution. The platform leverages MQTT, REST APIs, and event-driven architectures to support reliable device communication, configuration versioning, rollback mechanisms, and secure OTA update workflows.

This is a unique opportunity to work at the intersection of Cloud Engineering, IoT, Security, Networking, and Distributed Systems, while helping shape a scalable platform from the ground up. Musts: Backend, MQTT, X.509, Data base, Cloud, Observability, git/github, GitHub Actions, Python You might be the perfect match if you are/have: Strong backend engineering experience with distributed systems , APIs, databases, and production services.

Experience with IoT, connected devices, network management systems, fleet management, or infrastructure platforms. Hands-on experience with MQTT or similar messaging protocols. Solid understanding of X.509 certificates , TLS/ mTLS , secure provisioning, authentication, and authorization. Strong understanding of networking fundamentals: IP, TCP/UDP, DNS, DHCP, NAT, routing, firewalls, and troubleshooting. Experience designing device state models, command queues, telemetry pipelines, configuration management, and safe rollout/rollback mechanisms .

Comfortable with cloud platforms such as A WS, GCP, or Azure . Experience with PostgreSQL or similar relational databases. Comfortable with containers, CI/CD, monitoring, logging, and incident-oriented production operations. Strong communication skills and ability to collaborate across embedded, hardware , product, and business teams. Located in Poland for at least 5 years. Moreover, we appreciate skills in these areas: Languages : TypeScript, Go, Python, Rust, Java, Scala or similar backend languages.

Protocols: MQTT, REST, WebSockets , TLS/ mTLS , X.509. Databases: PostgreSQL , MongoDB , TimescaleDB , Redis , or similar . Cloud such as : AWS, GCP, Azure , Kubernetes , Docker. Observability: Prometheus, Grafana, OpenTelemetry , ELK, or similar . Version Control: Git / GitHub. C I/CD: GitHub Action s. We are looking for an experienced IoT Cloud Engineer to join an international project focused on building a modern IoT Device Management Platform .

The platform enables secure device onboarding, telemetry collection, remote configuration, diagnostics, and centralized management of distributed devices operating in production environments. We offer a choice of employment form: B2B or Employment Contract B2B: 130 – 150 PLN net/hour + VAT By joining us, you gain the following: Opportunity to work on exciting, international projects in cutting-edge industries like Automotive, Biotech, IoT; Possibility to develop in cloud technologies; Becoming part of a team that believes that the next step to a promising future is to put your heart into it and make it happen; Respect for your private life so you don't have to work overtime or on weekends; Team Events budget to socialize outside of work; Company Events to celebrate smaller and bigger successes (Summer Party, Programmer's Day, and trips abroad – so far we've been in South Africa, Are, and Barcelona).

Perks and benefits: Fully remote work or in our office in Wrocław; Benefits such as Luxmed , Multisport , and life insurance in Nationale Nederlanden ; Attractive referral system (9,5k for senior, 6k for mid, 2,5k for junior); Personal Training Budget with additional paid hours; Passion Day - an extra day off for your hobby to spend as you please; Flexible working hours with no micro-management approach. Our core hours are 9-15, the rest of the working time is up to you; We provide high-quality work equipment + 2 additional monitors and accessories.

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