Senior Backend Engineer

7 days ago

Remote Wrocław Kraków Białystok Łódź Warszawa Gdynia, Czech Republic Spyrosoft Full time

Strong professional experience with Kotlin and Java Expertise with Spring Boot framework Solid understanding of microservices architectures Hands-on experience with Kubernetes and containerization technologies Proficiency in Git, CI/CD, and modern DevOps practices Familiarity with database design and management Passion for renewable energy and sustainable technology is a plus About the Project Our client is a leading German producer of customized solutions for the self-supply of solar-powered electricity. Their portfolio includes photovoltaic systems, energy storage, and cloud technology solutions that empower individuals to achieve energy independence.  Driven by innovation and passion, the company actively promotes the energy transition by developing pioneering products and integrated systems that maximize independence and sustainability through self-generation of solar electricity. Your Role As a Senior Backend Developer, you will play a key role in designing, developing, and maintaining scalable backend systems that support next-generation renewable energy products. You’ll work with a modern tech stack and collaborate closely with cross-functional teams to create reliable, high-performance software that drives the company’s mission of sustainable energy independence. What We Offer Opportunity to contribute to the energy transition and sustainability goals Work with a modern tech stack and innovative team Competitive salary and benefits package Flexible working environment (remote/hybrid) Meaningful work that helps people achieve energy independence ,[Design, develop, and maintain backend services using Kotlin and Java, Build and manage microservices architectures and ensure seamless integration across systems, Implement and maintain containerized applications using Kubernetes, Collaborate on continuous integration and delivery using CI/CD pipelines, Manage and optimize databases and ensure data reliability, Monitor, troubleshoot, and optimize performance through effective logging and monitoring tools, Contribute to architectural decisions and promote best coding practices] Requirements: Kotlin, Java, Spring Boot, Kubernetes, Git, CI/CD Additionally: Sport subscription, Training budget, Private healthcare, Flat structure, International projects.

  • Senior Backend Engineer

    2 weeks ago

    Remote, Wrocław, Kraków, Łódź, Czech Republic Unravel Full time

    5+ years of experience in backend development, preferably in a microservices architecture. Strong expertise in Node.js and Golang; proficiency in Python is a plus. Experience with PostgreSQL and database design and Key-Value-Stores like redis for high-availability systems. Solid knowledge of containerization (Docker) and orchestration with Kubernetes....

  • Senior Backend Developer @ RemoDevs

    2 weeks ago

    Remote, Wrocław, Gdańsk, Warsaw, Kyiv, Kraków, Czech Republic RemoDevs Full time

    5+ years as a professional developer, with strong experience in Backend Development in a SaaS environment. Expert in Python 3.10+ and Django 4.x (REST APIs, ORM, async tasks). Skilled in system design and building distributed systems on AWS. Deep knowledge of PostgreSQL, Redis, and Elasticsearch/OpenSearch. Hands-on AWS experience (ECS, Lambda,...

  • Senior Backend Engineer

    2 weeks ago

    Remote, Kraków, Czech Republic GrassRoots Full time

    You’ll be great if you have 6+ years professional backend experience (or equivalent impact). Strong Python skills with FastAPI and/or Django in production. Deep SQL chops with PostgreSQL (query tuning, indexes, migrations, transactional integrity). Asynchronous Python (async/await), task queues (Celery/RQ), event systems. Experience building distributed,...

  • Senior AWS Python Backend Engineer @ Holisticon Connect

    7 days ago

    Remote, Wrocław, Czech Republic Holisticon Connect Full time

    ✅  You might be the perfect match if you are/have: 4+ years of professional backend software development in Python; Good understanding of event-driven development; In-depth knowledge of a variety of AWS cloud services and solutions; Hands-on solid knowledge of containerisation technologies such as Docker; Ability to work with Unix and Bash shell...

  • Senior Full-Stack Engineer

    2 weeks ago

    Remote, Wrocław, Warszawa, Białystok, Łódź, Kraków, Czech Republic Unravel Full time

    Requirements 5+ years of experience in full-stack development, preferably in a microservices architecture Expertise in Node.js; experience in Golang is a plus Strong expertise in creating modern modular web frontends with Angular and Svelte/Svelte-Kit according to micro frontend architecture. Solid knowledge of modern UI/UX principles and how to adapt...

  • Senior Backend Developer

    2 weeks ago

    Warszawa, Czech Republic Link Group Full time

    6+ years of experience in backend software development. Strong expertise in Java and Scala. Proven track record in designing and building systems with large data volumes and high scalability. Solid skills in SQL development and debugging relational databases. Hands-on experience with cloud platforms (preferably AWS) and containerized microservice...

  • Senior Backend Developer

    2 weeks ago

    Remote, Gdańsk, Wrocław, Warsaw, Kraków, Poznań, Czech Republic RemoDevs Full time

    5+ years as a professional developer, with strong experience in Backend Development in a SaaS environment. Expert in Python 3.10+ and Django 4.x (REST APIs, ORM, async tasks). Skilled in system design and building distributed systems on AWS. Deep knowledge of PostgreSQL, Redis, and Elasticsearch/OpenSearch. Hands-on AWS experience (ECS, Lambda,...

  • AI Engineer @ Addepto

    2 weeks ago

    Remote, Warszawa, Gdańsk, Wrocław, Białystok, Kraków, Czech Republic Addepto Full time

    🎯 What you’ll need to succeed in this role: At least 3+ years of commercial experience in software engineering with Python. Strong programming skills in Python: writing a clean code, OOP design. Hands-on experience with LLMs (Large Language Models) and Generative AI. A solid understanding of software design principles. Experience with backend...

  • Backend Engineer with Golang @ VirtusLab

    2 weeks ago

    Remote, Kielce, Kraków, Wrocław, Czech Republic VirtusLab Full time

    What we expect in general 6+ years of experience in backend development, preferably in platform engineering. Strong proficiency in one or more backend programming languages (Go, Python, Node.js, etc.). Experience with cloud platforms (AWS, GCP, Azure) Hands-on experience with containerization (Docker, Kubernetes) and serviceorchestration. Excellent...

  • Senior Software Engineer Kotlin @ Antal

    2 weeks ago

    Remote, Warszawa, Czech Republic Antal Full time

    At least a decade of professional experience in back-end development including 3+ years with Kotlin and in a technical leadership role as well Strong proficiency in Kotlin and solid understanding of modern backend architecture (e.g., microservices, REST, event-driven design) Experience with Spring framework (with Kotlin) Deep knowledge of modern...