IoT Cloud Engineer (AWS/Azure/GCP)

Holisticon Connect is a division within NEXER GROUP - a custom software development company. We started in Poland in 2017 and are now a team of over 140 people. We have the opportunity to work with world-renowned brands from Scandinavia, the UK, and Western Europe. Our goal is to grow stronger, in competence rather than in numbers. If you like what we do, check out our offer, maybe we will have the pleasure of meeting you! 😊  

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.

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.
 
We offer a choice of employment form: B2B or Employment Contract 
• B2B: 130 – 150 PLN net/hour + VAT

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 AWS, 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.
• CI/CD: GitHub Actions.
 

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. 
 
If you apply for this position and match our expectations, then: 
1) You will be invited to an HR Screening with our IT Recruiter. 
2) You will have a technical interview. 
3) You will meet with a client. 
Submit your application online in one easy step! Apply now!