
Knowit Group · Łódź
W Knowit łączymy pasję do technologii z realnym wpływem na przyszłość. Pracujemy w międzynarodowych zespołach, budując rozwiązania, z których korzystają tysiące...
W Knowit łączymy pasję do technologii z realnym wpływem na przyszłość. Pracujemy w międzynarodowych zespołach, budując
rozwiązania, z których korzystają tysiące (a często miliony) użytkowników. Stawiamy na elastyczność, zaufanie i rozwój –
techniczny oraz osobisty.
Prosimy o przesyłanie CV w języku angielskim. Poszukujemy kandydatów mieszkających na terenie UE.
Dla naszego klienta – duńskiego producenta markowych zabawek – poszukujemy doświadczonego Senior Backend Engineera, który dołączy
do zespołu odpowiedzialnego za rozwój i utrzymanie nowoczesnych usług backendowych wspierających globalne produkty i procesy
firmy.
Are you interested in working on exciting challenges within high transaction environments? We are looking for you who are curious, can take initiative and come up with new creative solutions, and care about ultimately delivering a great product. THE ROLE Our Player, Rewards & Gamification- Product Development team in Stockholm is growing and we are now looking for a Backend Software Engineer to join! Player, Rewards & Gamification at Betsson Group ensures our customers come back for more. It’s all about loyalty. We provide a world class customer experience beyond the game play featuring Tournaments, Dynamic personalized campaigns and much more! You will be part of preparing our journey to containerization, increasing the scalability of our systems while also maintaining their high quality. To accommodate new requirements, we are constantly re-evaluating our systems design and working on exciting new features. WHAT YOU’LL DO * Design and develop distributed backend services using .NET and event-driven architecture. * Collaborate with product and commercial teams to turn engagement ideas into scalable, maintainable, and user-friendly solutions. * Optimize our microservice ecosystem for performance, reliability, and observability. * Drive our containerization and cloud migration strategy forward. * Participate in architecture discussions and help shape technical decisions. * For senior engineers: Lead architectural decisions and proactively identify areas for improvement. * Write maintainable, well-tested code and conduct code reviews. * Participate in incident resolution and the team’s on-call rotation. * Maintain clear technical documentation such as ADRs, runbooks, and guidelines. * Build and share your domain expertise within the team. WHAT TECH STACK YOU’LL BE WORKING WITH We don’t expect you to know everything listed below – but the more you’re familiar with, the better. What matters most is your ability to learn, collaborate, and write high-quality, maintainable code. CORE TECHNOLOGIES These are essential to the role, and we’re looking for solid experience here – especially for senior candidates. * Languages & Frameworks: C#, .NET (modern versions after .NET Core) * Databases: SQL Server, PostgreSQL, Redis, Couchbase (experience with relational or document databases, including indexing and query optimization, is a strong plus) * Cloud & Containers: AWS, Kubernetes, Docker (experience with any major cloud provider or containerization platform is valuable) * Testing & Quality: xUnit/NUnit, mocking frameworks, k6 for load testing (understanding of unit, integration, and performance testing is more important than specific tools) ADDITIONAL TOOLS & PRACTICES Familiarity with these of similar tools and concepts is a plus. * Messaging & Microservices: Web APIs, Apache Kafka, RabbitMQ, Orleans (experience with any messaging or actor-based system is valuable) * Observability: Prometheus, Grafana, Loki, Splunk (or experience with other observability stacks) * CI/CD: GitHub Actions, trunk-based development, progressive delivery (familiarity with continuous delivery pipelines and deployment strategies is more important than specific tooling) * Architecture: Domain-driven design, event sourcing, actor model, distributed systems at planet-scale * Ways of Working: Agile and Lean principles, DevOps mindset, strong collaboration WHAT’S IN IT FOR YOU? Much like a rollercoaster, life at Betsson Group is fast-paced, full of twists and turns, and always exciting. With more than 2,800 colleagues representing over 75 nationalities across a global network of offices - including 1,500 at our operational headquarters in Malta - every day brings new challenges and opportunities to grow. It may not be for the faint-hearted, but if you thrive on innovation, enjoy pushing boundaries and want to be part of a diverse, international team, then you’ll fit right in at Betsson. CHALLENGE ACCEPTED? Check out the Betsson Group Blog to find out what our tech colleagues are talking about. By submitting your application, you understand that your personal data will be processed as set out in our Privacy Policy
Northflank is a cutting-edge cloud platform enabling developers to build and ship highly scalable, full-stack applications faster than ever before. We are a venture-backed company, and our platform is used by tens of thousands of developers worldwide in production. We are currently looking for a backend software engineer to join our team of passionate, dedicated professionals. As a backend software engineer at Northflank, you will play a crucial role in building core technology and contributing to the platform's stability, performance, and product roadmap. This position is remote. Timezone: Working hours aligned with UTC ± 2 hours Key Responsibilities: * Design and implement scalable backend systems and APIs * Optimize database performance and data structures * Develop and maintain microservices architecture * Ensure high availability and fault tolerance of our systems * Collaborate with front-end developers and DevOps teams * Participate in code reviews and technical discussions Requirements: * 3+ years of experience in backend development * Proficiency in languages such as Go, Python, or Node.js * Strong knowledge of databases (SQL and NoSQL) * Understanding of RESTful APIs and microservices architecture * Excellent problem-solving and communication skills Preferred Qualifications: * Experience with distributed systems and message queues * Experience with cloud platforms (AWS, GCP, or Azure) * Familiarity with containerization and orchestration (Docker, Kubernetes) * Knowledge of CI/CD practices and tools * Contributions to open-source projects We offer a competitive salary, equity, and benefits package, and the opportunity to be part of a fast-growing startup at the forefront of the cloud-native revolution. If you are passionate about infrastructure software and want to join a dynamic team, we’d love to hear from you! Compensation The compensation for this role will depend on a number of factors including but not limited to: skill set, experience, training, and location. The salary range is between £45k-£100k. Diversity Statement At Northflank, we are committed to fostering a culture where every individual feels valued, respected, and supported, regardless of their background or identity. We are dedicated to providing equal treatment and opportunity throughout hiring, selection, and employment regardless of gender, race, religion, national origin, ethnicity, disability, gender identity/expression, sexual orientation, veteran or military status, or any other legally protected category. Northflank is an equal opportunity employer.
THE ROLE Our Wallet Development team in Malaga is growing and we are now looking for a Backend Software Engineer to join! Engagement at Betsson Group ensures our customers come back for more. It’s all about loyalty. We provide a world class customer experience beyond the game play featuring Tournaments, Dynamic personalized campaigns and much more! You will be part of preparing our journey to containerization, increasing the scalability of our systems while also maintaining their high quality. To accommodate new requirements, we are constantly re-evaluating our systems design and working on exciting new features. WHAT YOU'LL DO: * Design and develop distributed backend services using .NET and event-driven architecture. * Collaborate with product and commercial teams to turn engagement ideas into scalable, maintainable, and user-friendly solutions. * Optimize our microservice ecosystem for performance, reliability, and observability. * Drive our containerization and cloud migration strategy forward. * Participate in architecture discussions and help shape technical decisions. * For senior engineers: Lead architectural decisions and proactively identify areas for improvement. * Write maintainable, well-tested code and conduct code reviews. * Participate in incident resolution and the team’s on-call rotation. * Maintain clear technical documentation such as ADRs, runbooks, and guidelines. * Build and share your domain expertise within the team. WHAT TECH STACK YOU'LL BE WORKING WITH: We don’t expect you to know everything listed below – but the more you’re familiar with, the better. What matters most is your ability to learn, collaborate, and write high-quality, maintainable code. CORE TECHNOLOGIES These are essential to the role, and we’re looking for solid experience here – especially for senior candidates. * Languages & Frameworks: C#, .NET (modern versions after .NET Core) * Databases: SQL Server, PostgreSQL, Redis, Couchbase (experience with relational or document databases, including indexing and query optimization, is a strong plus) * Cloud & Containers: AWS, Kubernetes, Docker (experience with any major cloud provider or containerization platform is valuable) * Testing & Quality: xUnit/NUnit, mocking frameworks, k6 for load testing (understanding of unit, integration, and performance testing is more important than specific tools) ADDITIONAL TOOLS & PRACTICES Familiarity with these of similar tools and concepts is a plus. * Messaging & Microservices: Web APIs, Apache Kafka, RabbitMQ, Orleans (experience with any messaging or actor-based system is valuable) * Observability: Prometheus, Grafana, Loki, Splunk (or experience with other observability stacks) * CI/CD: GitHub Actions, trunk-based development, progressive delivery (familiarity with continuous delivery pipelines and deployment strategies is more important than specific tooling) * Architecture: Domain-driven design, event sourcing, actor model, distributed systems at planet-scale * Ways of Working: Agile and Lean principles, DevOps mindset, strong collaboration WHAT WE OFFER * 25 working days of paid vacation. * Private health and life insurance. * Flexible compensation package for transport, meals, and more! * Hybrid work policy for the best of office and home. * Up to 10 days per year working remotely from abroad. * €300 yearly wellness allowance. * Office perks to make your day easier. * Referral program with a bonus for successful hires. * Intensive summer schedule in August for extra flexibility and work-life balance. We can also offer you an environment full of ambition and passion. One day is never like the other as the only constant is change, to the better, to the greater. We strive to be the best in whatever field we choose to play on, and we make sure to have fun along the way! CHALLENGE ACCEPTED? By submitting your application, you understand that your personal data will be processed as set out in our Privacy Policy