Senior C# Backend Developer @ Entravel
2 days ago
Core Skills: 5+ years of professional experience with C# and .NET Core (3.1–8). Strong understanding of asynchronous programming, LINQ, and dependency injection. Proven experience building scalable, distributed systems and microservices. Databases: Proficiency with PostgreSQL (schema design, query optimization, migrations). Experience with MongoDB for document-oriented data models. Working knowledge of Redis for caching and distributed state management. Messaging & Event Streaming: Hands-on experience with RabbitMQ for message queuing. Familiarity with Kafka for event-driven architectures and streaming data pipelines. Monitoring & Observability: Experience integrating and using Kibana, Prometheus, and Grafana for logging, metrics, and alerting. DevOps & Cloud: Strong understanding of Docker containerization and image optimization. Practical experience deploying and managing services on Google Cloud Platform (GCP) (e.g., GKE, Cloud Run, Pub/Sub, Cloud SQL). General Engineering Practices: Deep knowledge of RESTful APIs and gRPC service design. Solid grasp of CI/CD pipelines and Git-based workflows. Commitment to clean architecture, unit testing, and code quality. Ability to mentor engineers and contribute to architectural decisions. Soft Skills: Excellent problem-solving and analytical thinking abilities. Strong communication skills, able to collaborate effectively across teams in both English and Ukrainian. High sense of ownership, accountability, and responsibility for deliverables and system reliability. Nice to Have: Experience with IaC tools (Terraform, Pulumi). Knowledge of performance profiling and application security best practices. Familiarity with domain-driven design (DDD) and event sourcing. About Us Entravel is a member’s club for discounted luxury travel and white-label hotel platform provider focusing on the crypto industry, backed by VCs and prominent European founders. Our hotel product is incredibly strong; we offer more than one million properties, and our rates are amongst the lowest in the world. In fact, on most 5* hotels you won’t find a platform with lower rates than Entravel. What We’re Looking For We are actively seeking a talented and experienced Senior Backend Developer specializing in C# to join our dynamic team. As a key member of our development team, you will help architect and implement robust backend solutions that power our innovative hotel booking platform. What We Offer Flexible Start: Set your own comfortable working hours that accommodate your individual needs. Competitive Salary: High standards of remuneration reflecting your contribution and skills. Vacation: Enjoy 22 days of vacation for full rejuvenation and life enjoyment. Sick Leave: Ensure your health with 15 days of sick leave per year. Special Leave Cases: Support for significant life events such as weddings, childbirth, or the loss of a close family member. ,[] Requirements: C#, .NET Core, Microservices, PostgreSQL, MongoDB, Data models, Redis, RabbitMQ, Kafka, Data pipelines, Kibana, Prometheus, Grafana, DevOps, Docker, Google Cloud Platform, Cloud, PUB, Cloud SQL, REST API, gRPC, CD pipelines, Clean Architecture, Testing, Communication skills, Security, Terraform, IaC, Domain-driven design
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						Senior .NET Full-stack Developer @ Entravel
2 days ago
Remote, Czech Republic Entravel Full timeRequirements: 5+ years related experience; Strong experience in C#, .NET Core 3.1 — 8; Good experience with React, TypeScript; Understanding of the OOP principles, design patterns, SOLID; Experience in designing and developing multithreaded high-load applications; Experience with microservice architecture; Strong experience...
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						Senior Python Developer @ C&F S.A.
2 days ago
Remote, Warsaw, Czech Republic C&F S.A. Full timeWhat you will need: At least 6 years of experience and fluency in Python development ecosystem, Experience in building back-end services in Python with frameworks like FastAPI (or Flask), SQL and NoSQL databases, Knowledge of clean code and design patterns in Python, strong attitude to build well structured, high quality solutions, Experience in writing...
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Remote, Czech Republic Matrix Global Services Full timeAt least 5 years of experience with C# and .NET 8 Proven experience designing and implementing distributed systems and microservices Solid understanding of design patterns, DDD, and CQRS Strong background in API design and REST architectural principles Experience with PostgreSQL and database optimization Focus on security and performance optimization...
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						Senior C++ Developer @ Augmenta
4 days ago
Remote, Czech Republic Augmenta Full timeMust-Haves: Good communication skills in English 8+ years of experience in C++, STL, skills in both structural and OOP, concepts, data structures, patterns, templates, multithreaded programming Good knowledge of databases (MS SQL Server preferred) and basic SQL Experience with Distributed Systems and network programming Good debugging skills, and ability...
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						Senior C++ Developer @ Link Group
4 days ago
Remote, Czech Republic Link Group Full timeMust-Have Qualifications At least 5+ years of experience in C++ development. Expertise in C++ and the STL (Standard Template Library). Strong understanding of multithreading and concurrency concepts. Experience with RESTful APIs development. Familiarity with Git version control. Strong problem-solving and debugging skills. Fluent English communication...
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						Senior DevOps Engineer @ C&F S.A.
2 days ago
Remote, Warsaw, Czech Republic C&F S.A. Full timeWhat you will need: Minimum of 4 years of experience working as a DevOps Engineer, System Analyst, Developer, or in a similar role Hands-on experience with Linux, Docker, Kubernetes Understanding of networking concepts and protocols Experience in cloud platforms (e.g. AWS, Azure), event streaming platforms (e.g. Apache Kafka, HiveMQ), CI/CD...
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						Senior Backend Engineer
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Remote, Warszawa, Czech Republic Acaisoft Poland Sp. z o.o. Full timeProven ability to design and build scalable APIs and microservices in production using C# / .NET, backed by 6+ years of experience. Strong SQL / PostgreSQL skills for advanced querying, optimization, aggregation, and processing of large analytical datasets with a focus on performance. Hands-on experience with caching (e.g., Redis), query profiling, building...
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						.NET Backend Developer @ Devire
5 days ago
Remote, Czech Republic Devire Full timeBardzo dobra znajomość C# (8) i platformy .NET / .NET Standard Doświadczenie w pracy z Entity Framework Znajomość SQL (SQL Server lub PostgreSQL) Umiejętność tworzenia i utrzymania REST API Doświadczenie w pracy z RabbitMQ Znajomość narzędzi i praktyk observability Znajomość systemu kontroli wersji GIT Doświadczenie w pisaniu testów...
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						Senior Backend Engineer
4 days ago
Remote, Czech Republic Apollo.io Full timeWe’re language agnostic, you don’t need any previous Ruby experience for the backend positions. Any of those programming languages - Java, Python, Scala, Go, Elixir, C++ will be great as you'll learn Ruby during the onboarding Proven experience leveraging AI tools to enhance software development processes, including code generation, debugging, and...
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						Senior Azure Data Engineer @ C&F S.A.
2 weeks ago
Remote, Warsaw, Czech Republic C&F S.A. Full timeWhat you will need: 4+ years of experience in Azure and 5+ of industrial experience in the domain of large-scale data management, visualization and analytics Hands-on knowledge of the following data services and technologies in Azure (for example Databricks, Data Lake, Synapse, Azure SQL, Azure Data Factory, Azure Data Explorer) Experience with...