Lead Solution Architect
Company Description
Our client is a stable company based in Brno, which is part of a larger business group. The company operates in the field of energy and asset management and is part of a broader business group focused on renewable energy sources, energy projects, and related investment activities. The group is primarily engaged in the production of energy from renewable sources, the development of energy infrastructure, and the management of its assets.
Where and on what will you be working?
Come build a brain for modern energy on a greenfield. We are looking for a key technology leader who will have a clean slate and full trust. You will not step into a running corporate train with a lot of technical debt. Your task will be to design the system and integration architecture from scratch, select the optimal technology stack, define data flows, and then build your own development team around you to turn this vision into reality.
Your mission
- End-to-End system architecture: Design a robust distributed ecosystem that can handle the collection of high-frequency telemetry data (Time-Series) from the field and lightning-fast responses to network operator commands within 2 seconds.
Connecting Edge and Cloud (OT ↔ IT): Defining interfaces and fail-safe behavior between industrial controllers in the field (Teco PLC at BESS/PV sites) and the central cloud platform (ensuring autonomous operation of the site even during connection outages).
- Critical integrations: Designing reliable integration interfaces to external authorities (ČEPS ASVR terminal, market platforms OTE/HOPS) and the enterprise ERP system (Helios).
Technology selection & Best practices: Choosing a pragmatic, modern, and long-term sustainable technology stack (assuming high-performance backend, asynchronous processing, containerization).
Team building and technical leadership: Defining roles, participating in the recruitment of key specialists (Senior Backend, PLC Engineer, Data Engineer), and establishing a culture of quality (CI/CD, code review, testing strategies).
Security by Design (NIS 2): Ensuring compliance with strict cybersecurity standards for critical infrastructure (encryption, audit logging, RBAC, network segmentation).
Requirements
Senior experience with distributed systems architecture: Proven practice in designing highly available, asynchronous, and event-driven systems (microservices, message brokers).
- Data Engineering & Time-Series: Experience in designing data architectures for storing and aggregating large volumes of real-time time series (millions of data points from inverters and batteries daily).
- Edge-to-Cloud resilience: Ability to design communication between the central platform and edge units (Teco PLC) with guaranteed autonomous fail-safe operation and data synchronization after a failure (Store-and-Forward).
- Protocols and integration: Experience with integrating diverse interfaces – both modern and proprietary APIs (REST, gRPC, XML/SOAP) and industrial/IoT standards (MQTT, Modbus, ideally IEC standards).
- Systematic and analytical thinking: Ability to transform physical parameters of devices (capacity and degradation of BESS, temperatures, balancing deviations) into deterministic algorithmic rules.
Technological leadership & communication: Ability to act as a bridge between business (trading, energy) and the development team, set technical standards, and defend architecture before management.
- Nice-to-have: Direct experience from the energy or utility sector (connection to ČEPS, ASVR terminals, IEC 60870-5-104, OTE/HOPS markets, SVR services). Experience with cybersecurity in a regulated environment (NIS 2, ISO 27001, audit logging, OT/IT network segmentation). Experience with integrations to ERP systems (ideally Helios) and automated billing. Hands‑on background in a robust backend stack (e.g., C# /.NET, Go) with an emphasis on asynchronous programming and prevention of race conditions.
What can you look forward to?
Influence and a clean slate: No legacy code or binding corporate templates. You set the direction, technology, and way of working.
- Building your own team: The opportunity to choose the people you want to work with and set up the department's functioning according to your preferences.
Working on a top‑notch product: The chance to be at the forefront of a solution that directly impacts modern energy and network stability in the Central European region.
Maximum flexibility in the form of cooperation: Fair conditions for freelance or full‑time employment – it depends on what suits you.
Modern facilities in Brno + support for Home Office
- Top financial compensation: Corresponding to the enormous responsibility and unique profile of the role.