Senior Python Developer

"СиГ Солар "ООД

Компанията е специализирана в проектирането, изграждането и поддръжката на фотоволтаични системи, предоставяйки устойчиви решения за производство на възобновяема енергия.

Занимаваме се предимно с изграждането на фотоволтаични централи в Европа и България, но също така сме и дистрибутори на дребно и едро на панели Canadian Solar, инвертори Huawei и кабели TopCable.

Нашият екип вярва, че качеството е ключът към успеха на компанията и затова ние повишаваме удовлетворението на клиентите, като винаги отговаряме на техните изисквания.

Неразделна част от стратегията на СиГ Солар за успешен бизнес и управление на проекти са отличните технически характеристики, технологиите от най-високо качество и опитни, сертифицирани специалисти.

Съсредоточена върху качеството и опазването на околната среда, компанията осигурява надеждни и рентабилни системи, които допринасят за енергийната независимост и намаляването на въглеродните емисии.

Founded in 2014, S&G Solar Ltd. is a Bulgarian company based in Blagoevgrad, standing out as one of Europe’s top-rated solar companies.
S&G Solar Ltd. is proud to be featured in the FINANCIAL TIMES 1000 list of Europe’s fastest-growing companies!

At S&G Solar Ltd., we are passionate about developing renewable energy projects worldwide – from initial design to the construction of solar parks. With over 200 successfully completed projects across 8 countries, we are a trusted partner in the green energy sector.

We believe that people drive success – which is why we seek colleagues who share our sustainable and “green” mindset. Join us and you’ll find opportunities for growth, the freedom to innovate, and support from a close-knit, dynamic team.

As our company continues to grow, we are looking for a motivated professional who embraces new challenges and is eager to become part of our team in the position of “Senior Python Developer“.
Main duties and responsibilities:

• Design, implement, and maintain Python-based applications and microservices for energy management system;
• Optimize applications for maximum speed, scalability, reliability, and security;
• Write clean, testable, and efficient code following best practices and coding standards;
• Troubleshoot, debug, and improve existing systems and services;
• Collaborate with cross-functional teams to define, design, and ship new features;
• Participate in code reviews, architecture discussions, and contribute to technical documentation;
• Monitor, analyze, and resolve production issues and performance bottlenecks;
• Stay updated on new technologies and advocate for best engineering practices and continuous improvement.

Our requirements for candidates are:

• 3+ years of professional experience with Python (Django, Flask, or FastAPI);
• Strong knowledge of relational databases (PostgreSQL, MySQL) and ORMs (SQLAlchemy, Django ORM, etc.);
• Experience with cloud platforms (AWS, GCP, or Azure) and containerization (Docker, Kubernetes);
• Solid understanding of RESTful APIs, asynchronous programming, and microservices architecture;
• Familiarity with CI/CD pipelines, automated testing frameworks (pytest, unittest), and agile methodologies;
• Proficient with version control systems (Git) and collaborative development workflows;
• Strong problem-solving skills, analytical thinking, and ability to work independently or as part of a team;
• Excellent communication skills in English, both written and verbal.

Nice-to-Have:

• Experience with energy sector protocols (Modbus TCP/RTU, OPC UA, MQTT);
• Knowledge of frontend technologies (React, Angular, or Vue.js);
• Experience with time-series databases (InfluxDB, TimescaleDB) or message brokers (RabbitMQ, Kafka);
• Familiarity with infrastructure as code (Terraform, Ansible) and monitoring tools (Prometheus, Grafana);
• Understanding of cybersecurity best practices in cloud and IoT environments.

We offer you:
1. Permanent position with long-term career prospects at S&G Solar Ltd;
2. Work in a dynamic, collaborative team of young and ambitious professionals;
3. Opportunities for business trips across the country;
4. Transportation provided for work-related travel;
5. Competitive salary plus annual performance-based bonus;
6. Comprehensive social benefits package;
7. Engagement in innovative projects within a fast-growing sector;
8. Access to cutting-edge technologies and continuous professional development.


If you are interested in our offer, please send your CV and a recent photo. All documents will be reviewed in strict confidentiality and are subject to special protection in accordance with the requirements of the Personal Data Protection Act.
Interviews will be conducted with candidates who are shortlisted based on their documents.

• Факултет по Компютърни Системи и Управление, направление: „Компютърно и софтуерно инженерство”
• Факултет по Компютърни Системи и Управление, направление: „Компютърни технологии и приложно програмиране”

• Експерти | Специалисти