Python Developer - Real-time Systems

🏢 Summary: Remote Senior Python Developer role focused on building and scaling a high-performance backend platform for real-time coordination of thousands of autonomous units. The position involves designing scalable services, processing high-volume telemetry data, and co-creating high-availability system architecture. The role emphasizes performance, reliability, and real impact on mission-critical distributed systems. 🗂️ Requirements: 5+ years of experience as a Python Developer, Strong knowledge of Python and backend service development, Experience with Flask or FastAPI or aiohttp, Hands-on experience with real-time data processing systems, Experience with message queues (e.g. RabbitMQ or ZeroMQ), Experience with PostgreSQL or MySQL or MariaDB, Ability to design high-availability systems handling high volumes of requests and events, Very good command of English (C1) 📃 Skills: Python, Flask, FastAPI, aiohttp, RabbitMQ, ZeroMQ, PostgreSQL, MySQL, MariaDB, APIs, Telemetry, Asyncio 🏢 Description: Our Client is a fast-growing technology company building advanced solutions in the field of autonomy and distributed systems, operating in a fully international environment. The project focuses on developing a scalable backend platform that supports thousands of autonomous units operating and communicating in real time. We are looking for an experienced Python Developers who want to have a real impact on the architecture of mission-critical systems and work on products where performance, reliability, and fast engineering decisions truly matter. WORK MODE: 100% remote - occasional visits to Warsaw (mokotów) WHAT WILL YOU BE WORKING ON? Designing, implementing, and developing scalable backend services in Python , handling real-time telemetry data processing (thousands of events per second) Co-designing the architecture of high-availability, high-performance systems responsible for coordination, analysis, and real-time data distribution Building and maintaining data pipelines (telemetry, sensor data, mission-critical events) using message queues and asynchronous mechanisms Designing and implementing APIs consumed by frontend applications, internal tools, and other platform components Working closely with backend, frontend, and autonomy/algorithm teams to ensure seamless system integration Participating in architectural design, code reviews, ensuring code quality, monitoring, and maintaining clear technical documentation WHAT DO WE EXPECT FROM YOU? Must-have: Minimum 5+ years of experience as a Python Developer Strong knowledge of Python and backend service development Hands-on experience with web frameworks such as Flask , FastAPI or aiohttp Practical experience with real-time data processing systems (must have) and message queues (e.g. RabbitMQ , ZeroMQ , or similar) Experience working with databases such as PostgreSQL , MySQL , or MariaDB Ability to design systems handling a high volume of requests and events per second Very good command of English (C1) Nice-to-have: Experience with Go Knowledge of distributed systems, data streaming, or event-driven architecture Background in building mission-critical systems (high availability, real-time processing) WHY IS IT WORTH IT? Permanent employment with end client with competitive compensation aligned with your experience Real influence on system architecture and product direction in a high-responsibility, large-scale project Work in an international team focused on outcomes rather than unnecessary processes 100% remote work and a flexible approach to work organization Paid time off and stable cooperation conditions 2-week sprints, Jira , clear goals, and fast feedback loops A work culture built on quality, ownership, and true partnership Thank you for all applications! We will contact selected candidates. TQLO Sp. z o.o. – Agencja Zatrudnienia (KRAZ nr 33580)

🏢 Summary: Senior Python Developer role focused on building high-performance backend services for real-time, event-driven systems. The position involves extensive asynchronous programming, data streaming, and designing scalable architectures for high-load environments. 100% remote work with strong impact on architectural decisions and system reliability. 🗂️ Requirements: Minimum 8 years of experience in Python development, Strong expertise in asynchronous programming with asyncio, Deep understanding of GIL, multithreading and multiprocessing, Experience with real-time or high-load systems, Hands-on experience with RabbitMQ and Kafka, Experience with FastAPI, Flask or aiohttp, Knowledge of PostgreSQL or MySQL, Experience designing event-driven architectures, Experience building and maintaining high-performance APIs 📃 Skills: Python, asyncio, GIL, multithreading, multiprocessing, RabbitMQ, Kafka, FastAPI, Flask, aiohttp, PostgreSQL, MySQL, APIs, concurrency, streaming, event-driven 🏢 Description: Our Client is a fast-growing international technology company developing advanced distributed systems for real-time data processing. The project focuses on building a high-performance backend platform that handles large volumes of events, communicates asynchronously, and requires well-thought-out architectural decisions. Key aspects of the role include asynchronous programming in Python, event-driven architectures, and data streaming, where performance and reliability have a direct impact on the overall system. 📍 WORK MODE 100% remote (optional visits to the office in Warsaw ) 🧑‍💻 RESPONSIBILITIES Development of backend services in Python for real-time systems Processing telemetry data and events in an event-driven architecture Extensive work with asynchrony (asyncio) and concurrency Designing and developing APIs (FastAPI / Flask / aiohttp) Working with message brokers and data streaming platforms Contributing to the design of high-load system architectures Code reviews and ensuring high quality and reliability of systems 🔍 REQUIREMENTS Must-have: Minimum 8 years of experience as a Python Developer Strong expertise in asynchronous programming in Python (asyncio) – essential Solid understanding of the GIL, multithreading vs. multiprocessing Experience with real-time and/or high-load systems Hands-on experience with RabbitMQ and Kafka (queues and streaming) Experience with FastAPI / Flask / aiohttp Knowledge of relational databases (PostgreSQL / MySQL) Very good command of English (C1 level) 🤝 WHY JOIN? A project where asynchrony and real-time processing are the core foundation Real impact on system architecture and technical decisions Work on high-load systems and data streaming solutions 100% remote work with a flexible approach to work organization Paid time off and stable cooperation conditions Work in 2-week sprints, Jira, clear goals, and fast feedback Please note that only selected candidates will be contacted as part of the recruitment process. The recruitment process is conducted by TQLO Sp. z o.o. , a licensed recruitment agency registered in Poland under KRAZ number: 33580 .

🏢 Summary: The offer is for a Python Backend Engineer to build and maintain scalable backend services and REST APIs in a collaborative product environment. The role focuses on developing clean, well-tested code and contributing to architecture and code quality from day one. It is a fully remote position with flexible contract options and long-term international projects. 🗂️ Requirements: 3+ years of professional Python experience, Strong knowledge of FastAPI, Django, or Flask, Experience with PostgreSQL, Experience with REST API design, Proficiency with Git, Experience with pytest, Experience with CI/CD workflows 📃 Skills: Python, FastAPI, Django, Flask, PostgreSQL, REST, Git, pytest, CI/CD, AWS, GCP, Azure, Docker, Kubernetes, Kafka, Redis, RabbitMQ, Poetry, uv 🏢 Description: About the role We're looking for a Python backend engineer to join a client team and build reliable, scalable services from day one. Responsibilities Design and maintain Python-based backend services and REST APIs Write clean, tested, well-documented code Collaborate with product and DevOps teams on feature delivery Participate in code reviews and architecture discussions Requirements 3+ years of professional Python experience Solid knowledge of FastAPI, Django, or Flask Experience with PostgreSQL and RESTful API design Comfortable with Git, pytest, and CI/CD workflows Good written and spoken English Nice to have AWS, GCP, or Azure Docker / Kubernetes Kafka, Redis, or RabbitMQ Poetry or uv for dependency management pre-commit hooks and code quality tooling We offer B2B contract or employment contract (umowa o pracę / umowa zlecenie) — flexible on the form Fully remote, flexible setup Long-term engagements with international clients Dedicated recruiter support through onboarding

🏢 Summary: Long-term remote B2B opportunity for an experienced Full Stack Developer to build secure, scalable backend services and full-stack features using Python and FastAPI. The role involves designing REST APIs, implementing authentication mechanisms, and working with containerized, cloud-based environments. The project focuses on secure development practices and high-performance distributed systems. 🗂️ Requirements: Minimum 4 years of experience in full stack or backend development, Strong experience with Python and FastAPI, Experience designing and developing REST APIs, Experience with PostgreSQL, Knowledge of OAuth2, OIDC, RBAC, SSO, Hands-on experience with Docker and Kubernetes, Experience with CI/CD pipelines, Understanding of secure software development practices, Ability to work in cloud or hybrid environments, EU citizenship and residence in Poland 📃 Skills: Python, FastAPI, REST, PostgreSQL, OAuth2, OIDC, RBAC, SSO, Docker, Kubernetes, CI/CD, React, TypeScript, Next.js 🏢 Description: In Cyclad we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. We are currently looking for an experienced Full Stack Developer (Python / FastAPI) to join a remote team working on secure and scalable backend services and full-stack feature development Project information: Type of project: IT services Office location: Poland Work mode: Remote Budget: 130-150 PLN net/ h- b2b Project length: Long-term Only candidates with citizenship in the European Union and residence in Poland Start date: ASAP (depending on candidate’s availability) Project scope: Design and develop full-stack features (frontend + backend) Build backend services using Python (FastAPI) and REST APIs Develop scalable data models and secure services Implement authentication and authorization (OAuth2, OIDC, RBAC, SSO) Work with Docker, Kubernetes and CI/CD pipelines Support secure development practices (validation, compliance, scanning) Collaborate with teams on technical requirements and system design Troubleshoot and improve system performance and stability Competence demands: Min. 4 years of experience in similar roles Strong experience with Python (FastAPI) and REST APIs Experience with PostgreSQL Knowledge of authentication/security frameworks (OAuth2, OIDC, RBAC, SSO) Hands-on experience with Docker, Kubernetes and CI/CD tools Understanding of secure software development practices Ability to work in cloud or hybrid environments Min. 4 years of experience in similar roles Nice to have: React, TypeScript, Next.js We offer: Remote working model Full-time job agreement based on b2b Private medical care with dental care (covering 70% of costs) Multisport card (also for an accompanying person) Life insurance

🏢 Summary: Senior Python Engineer role focused on building and scaling a cloud-native real-time Data Platform handling massive datasets. The position involves developing high-performance backend services, optimizing distributed systems, and integrating large-scale data storage solutions. Hybrid work model in Warsaw with employment benefits including private medical care and multisport card. 🗂️ Requirements: 8+ years of backend software development experience, Advanced Python expertise, Experience with scalable production-grade systems, Knowledge of concurrency and multiprocessing, Experience with Pandas or NumPy, Experience with Parquet or JSON data formats, Knowledge of relational and NoSQL databases, Experience with performance optimization and low-latency systems, Ability to use AI-assisted development tools responsibly 📃 Skills: Python, Pandas, NumPy, Parquet, JSON, SQL, NoSQL, API, OOP, Concurrency, Multiprocessing, Algorithms, Databases, Cloud 🏢 Description: For our client, a leading, high-growth global fintech company – we are looking for an experienced Senior Python Engineer to join a key engineering team responsible for the company’s core data foundation. The project focuses on building, optimizing, and scaling a cloud-native, high-throughput Data Platform designed to ingest, process, and distribute massive datasets in real-time. This platform serves as the backbone for various downstream analytical systems, requiring extreme reliability, performance, and scalability. This is a fantastic opportunity for a strong Python generalist who enjoys solving complex distributed system problems, optimizing data flows, and working with modern cloud architectures. Responsibilities Backend & Pipeline Development: Design and develop scalable backend services and high-performance data processing pipelines using Python. Performance Tuning: Identify bottlenecks and optimize system performance, focus on concurrency, throughput, and low-latency execution. Data Integration & Storage: Build robust integrations with modern cloud-native storage solutions and databases to manage large-scale datasets efficiently. Collaborative Engineering: Work closely with cross-functional technical teams to understand data requirements and deliver reliable API services and platform features. Engineering Excellence: Maintain top-tier coding standards, emphasizing clean code, robust testing (unit/integration), automation, and security. Requirements 8+ years of professional backend software development experience (with a strong track record in building scalable, production-grade systems). Deep expertise in Python (advanced OOP, concurrency/multiprocessing, memory management, data structures, and algorithms). Solid experience with data-centric libraries such as Pandas, NumPy, or similar data processing frameworks. Experience with large-scale data storage formats (e.g., Parquet, JSON, or column-oriented databases) and relational/NoSQL databases. AI-assisted development mindset: Comfortable utilizing AI tools  to accelerate delivery, while maintaining strong developer judgment regarding validation, testing, security, and refactoring. What our client offers: Hybrid work model in Warsaw (minimum 3 days a week in the office - strictly non-negotiable). Contract of Employment (UoP) with increased tax-deductible costs (KUP). Private medical care (including full dental care). Lunch card to cover your daily meals. Multisport card.

🏢 Summary: B2B contract for a Senior Python Backend Developer to design, build, and maintain scalable backend systems in a fully remote environment (Poland-based). The role focuses on developing production-grade services and APIs using Python and FastAPI, with end-to-end ownership of features. You will contribute to microservices architecture and asynchronous processing solutions. 🗂️ Requirements: Minimum 5 years of commercial experience, Strong experience with Python, Strong experience with FastAPI, Experience building backend systems and APIs, Experience with RESTful services, Experience with microservices architecture, Experience with messaging or queue systems, Hands-on experience in production environments, Ability to work independently, Ability to manage tasks end-to-end 📃 Skills: Python, FastAPI, REST, Microservices, API, Queues, Messaging, Async, Backend 🏢 Description: Location: 100% Remote (candidates must be located in Poland) Start Date: ASAP /  2 weeks Contract Type: B2B via Experis About the Role We are looking for an experienced Python Backend Developer to join our team and contribute to building and maintaining scalable backend systems. You will work on production-grade solutions and take ownership of features end-to-end. Key Responsibilities Design and develop backend services using Python and FastAPI Build and maintain REST APIs and microservices architectures Work with queues and asynchronous processing Support and improve production systems Take ownership of tasks from concept to delivery (end-to-end) Collaborate with cross-functional teams in a fully remote setup Requirements Minimum 5 years of experience Strong experience with Python and FastAPI (mandatory) Proven track record in building backend systems and APIs Experience with RESTful services, microservices, and messaging/queue systems Hands-on experience working on production environments Ability to work independently and manage tasks end-to-end Strong problem-solving and communication skills What We Offer Access to Medicover healthcare Multisport card E-learning platform access Group life insurance

🏢 Summary: Senior Python Backend Developer role focused on building scalable, cloud-native backend systems using Python and FastAPI within GCP environments. The position involves designing containerized microservices, contributing to system architecture, and supporting CI/CD processes in a modern cloud ecosystem. Fully remote within Europe with collaboration on high-impact digital transformation projects. 🗂️ Requirements: Minimum 4 years of backend development experience with Python, Strong knowledge of GCP and cloud service architectures, Experience with FastAPI or similar Python frameworks, Experience with containerized environments, Solid understanding of microservices architecture, Experience designing and developing REST APIs, Proficient English (spoken and written), Legal right to work in Europe 📃 Skills: Python, FastAPI, GCP, Containers, Microservices, REST, CICD, React 🏢 Description: Ignite innovation — transform cloud-native backend solutions with Python mastery! Warszawa-based opportunity with remote work model, allowing up to 5 days per week from anywhere in Europe. As a Senior Python Backend Developer – Cloud & Container Experts , you will be working for our client, a leader in cloud computing and containerization technologies. Join a dynamic team dedicated to building scalable, resilient, and cutting-edge backend systems that power modern applications. This role offers a pathway to work on impactful projects at the forefront of digital transformation. Your main responsibilities: Design, develop, and optimize scalable backend services using Python and FastAPI within cloud environments. Implement containerized solutions leveraging Google Cloud Platform (GCP) and modern orchestration tools. Collaborate with cross-functional teams to deliver high-performance software solutions. Ensure code quality, performance, and security standards are maintained. Participate in continuous integration and deployment pipelines to streamline releases. Contribute to system architecture planning and best practices in cloud-native development. Troubleshoot and resolve production issues swiftly and efficiently. You're ideal for this role if you have: At least 4 years of experience in backend development with Python. Strong knowledge of GCP, containers, and cloud service architectures. Experience with FastAPI or similar frameworks. Previous full-stack experience is a plus; familiarity with React is advantageous. Solid understanding of microservices and RESTful API design. Ability to work independently in a remote environment and communicate effectively within international teams. It is a strong plus if you have: (optional) Additional certifications in cloud technologies or container orchestration. Experience with DevOps tools and CI/CD pipelines. Language Required for the role: Proficient command of English (spoken and written). Eligibility for the role: Only candidates with an existing legal right to work in Europe will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Backend Developer role focused on building and evolving a large-scale platform using Domain-Driven Design and Clean Architecture. The position involves designing business logic, creating secure REST APIs and WebSocket services, and working with event-driven architectures over Kafka. You will contribute to a complex production system using modern Python practices and AI-assisted development tools. 🗂️ Requirements: 3–5 years commercial experience with Python (3.10+), Production experience with FastAPI, Django, or Flask, Strong knowledge of design patterns and maintainable, testable code principles, Habitual use of fully type-hinted Python, Experience building secure REST APIs and knowledge of OWASP Top 10, Production experience with one relational and one NoSQL database, Experience with asynchronous or concurrent programming, Production experience with message queue or streaming platform, Proficiency with Docker and docker-compose, Experience using AI coding assistants in daily development 📃 Skills: Python, FastAPI, Django, Flask, Kafka, RabbitMQ, SQS, Celery, Redis, MongoDB, DynamoDB, SQL, Docker, asyncio, REST, WebSocket, OWASP, GitHubCopilot 🏢 Description: Exciting projects. Great atmosphere. Personal growth. Merixstudio. What you'll do We are looking for a collaborative developer who deeply cares about architecture, maintainability, and security. You’ll join our experienced team on a large, established backend platform built with Domain-Driven Design, Clean Architecture, and event-driven workflows over Kafka. In this role, you will design business logic, build modern REST APIs and WebSocket services, and leverage AI-assisted development tools to deliver real business value. Navigating a complex, existing system is an exciting growth opportunity for you, and you’ll expand your skills through direct mentorship from senior engineers and robust code reviews. Who you are (requirements) You have 3–5 years of commercial experience in developing web applications using Python (3.10+). Proficiency and production experience with at least one Python framework (FastAPI, Django, or Flask). You are familiar with design patterns and principles of delivering high-quality, maintainable, and testable code. You write fully type-hinted Python as a matter of habit and respect existing patterns over personal preference in codebases with explicit layer separation. You know how to build modern, secure, and efficient APIs and you are aware of common web security pitfalls (OWASP Top 10). Production experience and knowledge of at least one relational and one non-relational/NoSQL database (MongoDB, DynamoDB, Redis, etc.). Comfortable with concurrent or asynchronous programming concepts (task queues, async/await) and possess production experience with at least one message queue or streaming platform (Kafka, RabbitMQ, SQS, Celery, Redis Streams, etc.). You are proficient with Docker and docker-compose. AI-Assisted Development: You work effectively and are comfortable using AI coding assistants (GitHub Copilot, Cursor, Windsurf, Claude Code, etc.) as part of daily development. You are fluent in both spoken and written English and Polish. What we'd like to see: Production experience with FastAPI specifically, as well as production async Python experience (asyncio, async/await, async testing). Exposure to Domain-Driven Design (DDD) or Clean Architecture in a previous role. Experience with MongoDB schema design and aggregation pipelines, as well as production experience with Kafka or another streaming platform. Strong ability to write unit and integration tests (including when behavior spans services or storage), debug applications, and familiarity with CI/CD pipelines. Knowledge of AWS services (EC2, ECS, S3, SQS, Lambda). Experience with WebSocket-based real-time systems. Experience giving constructive code review feedback to help the team grow. Additionals: one-time home office bonus - 1000 PLN net free medical care flexible working hours 100% remote work or hybrid model: if you want, we have a great office in Poznań!

🏢 Summary: Senior Python Backend Developer role focused on building scalable, cloud-native backend services using Python and FastAPI in GCP environments. The position involves designing containerized microservices, contributing to CI/CD pipelines, and ensuring high performance, security, and reliability of production systems. It offers fully remote work within Europe on modern cloud and container-based architectures. 🗂️ Requirements: Minimum 4 years of backend development experience with Python, Strong knowledge of GCP and cloud service architectures, Experience with containers and orchestration tools, Experience with FastAPI or similar Python frameworks, Solid understanding of microservices architecture, Experience designing and implementing RESTful APIs, Experience with CI/CD pipelines, Proficient English (spoken and written), Legal right to work in Europe 📃 Skills: Python, FastAPI, GCP, Docker, Kubernetes, Microservices, REST, CI/CD, Cloud, Containers 🏢 Description: Warszawa-based opportunity with remote work model, allowing up to 5 days per week from anywhere in Europe. As a Senior Python Backend Developer – Cloud & Container Experts , you will be working for our client, a leader in cloud computing and containerization technologies. Join a dynamic team dedicated to building scalable, resilient, and cutting-edge backend systems that power modern applications. This role offers a pathway to work on impactful projects at the forefront of digital transformation. Your main responsibilities: Design, develop, and optimize scalable backend services using Python and FastAPI within cloud environments. Implement containerized solutions leveraging Google Cloud Platform (GCP) and modern orchestration tools. Collaborate with cross-functional teams to deliver high-performance software solutions. Ensure code quality, performance, and security standards are maintained. Participate in continuous integration and deployment pipelines to streamline releases. Contribute to system architecture planning and best practices in cloud-native development. Troubleshoot and resolve production issues swiftly and efficiently. You're ideal for this role if you have: At least 4 years of experience in backend development with Python. Strong knowledge of GCP, containers, and cloud service architectures. Experience with FastAPI or similar frameworks. Previous full-stack experience is a plus; familiarity with React is advantageous. Solid understanding of microservices and RESTful API design. Ability to work independently in a remote environment and communicate effectively within international teams. It is a strong plus if you have: (optional) Additional certifications in cloud technologies or container orchestration. Experience with DevOps tools and CI/CD pipelines. Language Required for the role: Proficient command of English (spoken and written). Eligibility for the role: Only candidates with an existing legal right to work in Europe will be considered for this role.

🏢 Summary: Senior Python Developer role in a startup-like environment focused on designing and delivering high-performance, scalable systems for demanding clients. The position involves full ownership of features from architecture to deployment, solving complex engineering problems, and shaping technical direction. It requires working under pressure with rapidly changing priorities while ensuring code quality and system reliability. 🗂️ Requirements: 5+ years commercial software development experience, Strong professional experience with Python, Excellent knowledge of Python 3.11+, Production experience with FastAPI or Falcon and Async SQLAlchemy 2.0, Strong expertise in REST and GraphQL API design, Solid understanding of relational and non-relational databases, Advanced knowledge of OOP, SOLID, YAGNI, TDD, Extensive experience with pytest, CI/CD pipelines, Docker, deployments, Experience building scalable, low-latency systems, Very good written and spoken English 📃 Skills: Python, FastAPI, Falcon, SQLAlchemy, REST, GraphQL, PostgreSQL, MongoDB, Redis, Elasticsearch, pytest, Docker, CI/CD, AWS, Azure, OOP, SOLID, TDD 🏢 Description: Startup Environment, High Ownership, Demanding Clients Join our startup-like environment filled with new ideas, rapid change, and a strong focus on priorities and delivery. We are looking for a Senior Python Developer - someone experienced, open-minded, and ready to take real ownership of both product and technical direction. You will work closely with demanding clients , solve complex engineering problems, and help shape ambitious, high-performance systems. This role is for engineers who enjoy responsibility, fast feedback loops, architectural challenges, and working under pressure . Your primary responsibilities beyond the will to change the world: Act as a technical partner for clients : analyze business needs, challenge requirements, and propose effective, scalable solutions Take full ownership of complex features - from concept and architecture through implementation, testing, and automated deployment Design system architecture, APIs, and data models for high-load, data-intensive systems Deliver core and business-critical components of projects Work in a dynamic, startup-style environment with changing priorities, tight deadlines, and real product pressure Proactively identify risks, bottlenecks, and technical debt , and drive improvements Ensure high code quality, performance, and reliability Support and mentor other developers, helping raise engineering standards across teams Must have: 5+ years of commercial software development experience, including strong professional experience in Python Excellent knowledge of Python 3.11+ (typing, dataclasses, modern best practices) Production experience with modern Python frameworks ( async FastAPI preferred, Falcon welcome, Async SQLAlchemy 2.0 ) Strong expertise in API design (REST, GraphQL) Solid understanding of databases and data-driven systems (relational, document, search, key-value stores) Advanced knowledge of software engineering principles (OOP, SOLID, YAGNI, TDD) Extensive experience with unit testing (pytest), CI/CD pipelines, Docker, and deployments Proven ability to build efficient, low-latency, scalable systems Confidence working with tight deadlines, pressure, and frequently evolving requirements Very good written and spoken English Strong communication skills and a proactive, ownership-oriented mindset Experience we'd appreciate, too: Experience in system architecture and technical leadership Asynchronous programming and high-concurrency systems Messaging systems and distributed architectures DDD and event-driven design Cloud and DevOps experience ( AWS / Azure ) Mentoring and influencing technical direction of projects Nice to have: Community involvement (meetups, open source, speaking) Writing technical articles or internal knowledge-sharing A list of benefits is long so we will mention only about the crucial ones: Challenging projects with real business impact Work in a startup-like environment : fast decisions, autonomy, responsibility 100% remote or office in Poland (Wrocław / Zielona Góra) Sport subscription Private healthcare