Hire the best Microservices Developers in Warsaw, PL
Check out Microservices Developers in Warsaw, PL with the skills you need for your next job.
- $57 hourly
- 4.5/5
- (22 jobs)
🏅 I began my journey in software development in 2012. 🏅 I have achieved success in launching startups and securing funding of $30 millions and more for SaaS applications. 🏅 My Team recognized as one of the best Software Firms in San Diego by Clutch. 🏅 70% of my clients are long-term. 💻 Why me? - I offer free technical consultations, no strings attached. - I provide a 6-months warranty period. - I don’t outsource work to third parties. I can help you conceptualize, build, and integrate complex software solutions. I never break the trust of my customers by unveiling any data related to their projects. I am willing to sign an NDA to ensure that your confidential information is protected. 💻 My areas of expertise include: - Web development - Mobile development (iOS and Android) - Desktop applications development (Windows and macOS) - UX/UI design From filling in gaps to full-cycle software development, I will get you covered. 💻Tech stack: - LANGUAGES: JavaScript, TypeScript, Python - FRONTEND FRAMEWORKS: Angular 2+, React.js, Vue.js FRONTEND TECHNOLOGIES: HTML5, CSS3, sass, Bootstrap, REST API, GraphQL API, Redux, RxJS, Vuex, Material UI, DOM Realtime And Messaging Technologies: RabitMQ, Socket.IO, WebRTC, Agora.io BACKEND FRAMEWORKS: Express, NestJS, Adonis.js, FeathersJS, Loopback, Django Rest Framework, Flask BACKEND TECHNOLOGIES: Node.js, PostgreSQL, MySQL, MongoDB, SQLite, Firebase, Redis, ElasticSearch MOBILE: React Native, Swift, JAVA, Kotlin, Ionic, Native-Script TRACKING SYSTEM: Trello, Jira SOURCE CONTROL: GIT ADDITIONAL: Ngnix, apache, pm2, Docker, Jenkins, AWS, DigitalOcean, Google Cloud, FCM, PUSHER Amazon Iot-core, Amazon EC2, Dynamo DB, AWS Elastic Beanstalk, AWS S3 My biggest motivation is to create value for clients. Over the years, I have helped hundreds of businesses to grow online. I have extensive experience in: - Finance - Healthcare - Manufacturing - Transport - Electronics - Education - Telecom - Construction - Music - Retail & eCommerce Contact me to get a free consultation on your software development project.Microservices
Web DevelopmentSaaS DevelopmentDatabaseTest-Driven DevelopmentPythonReact NativeSwiftAngularObject-Oriented ProgrammingLean StartupStartup CompanyMicroserviceApp DevelopmentNode.jsReactWeb Design - $85 hourly
- 5.0/5
- (8 jobs)
Experienced Java developer with solid skills of system design and analytical mindset. I also have engineer's degree in computer science.Microservices
Vert.xCucumberMicronautJUnitJavaApache GroovyMicroserviceHibernateSQLSpring FrameworkGit - $35 hourly
- 5.0/5
- (2 jobs)
👋 Work with me and forget micromanaging. I deliver reliable, professional results with excellent communication, problem-solving, and innovative ideas💡💡💡 📎 With experience as a front-end developer for over 20 startups and companies, I maintain ongoing relationships with 60% of them. 📎 When you work with me, you won't need to micromanage. You'll feel at ease knowing you've partnered with a professional you can trust. My professionalism shines through in communication, problem-solving, and delivering high-quality results. Your time is valued and never wasted with me. Additionally, I lead a team of experts, enabling us to design, implement, and support large-scale projects. Clients trust me because: ☑️ I keep you regularly updated on my progress. You assign a task – I evaluate, plan, execute, and keep you informed. ☑️ If an issue arises that impacts the deadline, you'll know immediately. ☑️ I discuss any ideas for improving or speeding up the task with you. ☑️ I work with dedication, and if I make mistakes, I own up to them. 📎 My strong skills and technology stack as a frontend developer: ✅ JavaScript, ECMAScript 2015 ✅ JavaScript: Integrated Development Environments: WebStorm, PhpSrtorm, Visual Code ✅ JavaScript: Programming Technologies: ES6, ES7 ✅ JavaScript: Programming frameworks: Sass, ReactJS, Node JS, Redux, Redux-Saga, Redux-Thunk, Vanila Js, Express, Hapi JS, Typescript, Jest, React testing library ✅ PHP project development experience: Laravel ✅ Databases: MySQL ✅ NoSQL repositories, queues: experience with MongoDB + Mongoose ✅ Testing: Jest ✅ CI/CD: Kubernetes, Jenkins, configuring the deployment pipeline for the project ✅ JavaScript: Frontend UI libraries: Bootstrap, Ant design, Material UI, Prime React ✅ CSS: cross-browser layout, adaptive layout, Sass, PostCSS, BEM preprocessors ✅ HTML: cross-browser layout, semantics, HTML5 usage ✅ Software Configuration Management: Version Control Systems: Git (GitHub, Gitlab, Bitbucket) ✅ Clear understanding of the Git Flow process ✅ Quality control: ESlint, Prettier ✅ Software Configuration Management: Module bundlers: Webpack, Babel ✅ Confident with unix-like systems ✅ Office Software: MS Excel, MS Outlook ✅ Agile: Software Development Methodologies: Scrum, Kanban ✅ Software Engineering Management: Project Management: JIRA, Confluence Thank you for your time and attention. Reach out to me so I can evaluate your task or project. 🚀🚀🚀 Let's embark on a productive collaboration!Microservices
Database.NET FrameworkAgile Project ManagementMicroserviceTechnical DocumentationDigital TransformationRisk ManagementSolution ArchitectureProject DeliveryProject ManagementSystem AnalysisBusiness AnalysisSQLC#JavaScript - $65 hourly
- 4.9/5
- (49 jobs)
Highly skilled software developer with over 12 years of experience delivering exceptional solutions to clients. I specialize in full-stack development, including expertise in back-end, front-end, and DevOps, making me well-equipped to tackle complex projects. I have a proven track record in developing robust, scalable, and user-friendly applications across various industries, including finance, healthcare, and e-commerce. With excellent communication skills and a strong commitment to collaboration, I ensure smooth project delivery and successful outcomes. I am ready to bring my expertise to your next project on Upwork Back-end technologies and languages: - Java, Spring Boot, JPA/Hibernate + Spring Data - Scala, Play Framework, Akka - Node.Js, Express, Nest.Js, TypeScript - Maven/Gradle/SBT/NPM - Mysql, PostgreSql, MongoDB, Redis - GRPC, Protobuf DevOps and Microservices: - Linux/Unix - Docker - Nginx - Kubernetes - Prometheus - ELK stack Front-end technologies: - HTML/CSS/JavaScript - Angular - ReactMicroservices
NestJSKubernetesSpring BootMicroserviceAPIMongoDBNode.jsAngularTypeScriptScalaPostgreSQLJavaReactAmazon Web ServicesJavaScript - $60 hourly
- 5.0/5
- (5 jobs)
More than 10 years of production experience. I have good knowledge in different types of architectures: # Hexagonal/Onion/Clean Domain Centric Architectures # Classic 3 Layers DataBase Centric Architecture # Domain Driven Design # CQRS patterns, Event Sourcing, Event Streaming and Historical Modelling # Distributed Event-Driven systems, complex systems with SAGAs # Microservices, Docker, Containerised Apps & Kubernetes # Security with OAuth2 & OpenIdConnect, JWT, mTLS I’m fond of designing encapsulated domain models (Domain Driven Design) and building Microservices using modern architectures with CQRS patterns. Skills: # C#, .NET, Web Api # Entity Framework, Dapper # T-SQL, MS SQL Server, MySQL # TDD, SpecFlow, unit & integration tests # SVN, Git, Scrum Biggest Projects ever worked on: # Senior Software Engineer at PaySafe - a market leader with over 25 years of experience in payments. My the most responsible task: I personally participated as a key developer in creating the backend architecture for a child PaySafe product: SafetyPay. It’s a high load system which processes millions of payment transactions a month. # Elateral Marketing Service Cloud. I personally worked on the features for the following customers: Coca-Cola, Procter & Gamble, Motorola, Toyota. I used a NServiceBus SAGA to develop complex fulfilment process. There were more than 150 developers, QAs, BAs, Managers on the project. Methodologies I currently apply to my software development process: # Abstractions: this is important thing because it's the only way to build complex systems in easy way. Usually I use 5-8 abstractions maximum in a single piece of code/level because it's very difficult for a human brain to keep in mind more than 5-8 things at the same time. # Domain Driven Design # Profiling SQL queries # GoF patterns # SOLID principles # Estimating the complexity of algorithms O(1) O(N)... # Well designed REST apis # DRY # Microservices # EncapsulationMicroservices
.NET CoreDomain-Driven DesignTest-Driven DevelopmentClean ArchitectureRESTful APITransact-SQLC#MySQLEntity FrameworkMicroservice - $100 hourly
- 5.0/5
- (3 jobs)
I'm a full stack javascript developer with over 15 years of experience. I can build entire website or web application from scratch. My experience: ✅ JavaScript / TypeScript: 12 years ✅ React.js / Next.js: 4 years ✅ Angular: 7 years ✅ Node.js: 7 years ✅ HTML & CSS: 15 years ✅ PostgreSQL / MySQL: 8 years ✅ WebSockets: 4 years ✅ WebRTC: 2 yearsMicroservices
Domain-Driven DesignSocket.ioMicroserviceAngularRedisJavaScriptPostgreSQLHTMLNode.jsGit - $43 hourly
- 0.0/5
- (0 jobs)
♟𝐑𝐞𝐯𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐢𝐳𝐢𝐧𝐠 𝐭𝐡𝐞 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐲 𝐨𝐟 𝐝𝐢𝐠𝐢𝐭𝐚𝐥 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬📲 🚀 As an IT professional with more than 8 years of experience I am developing enterprise solutions for top-tier companies, including several on the Forbes USA list. Throughout my career, I’ve successfully built multiple MVPs from scratch - each contributing to meaningful business growth and high customer satisfaction. Driven by a passion for quality and deep technical expertise, I consistently aim to deliver outstanding, innovative solutions that address complex challenges 💎 𝐊𝐞𝐲 𝐅𝐚𝐜𝐭𝐬 𝐀𝐧𝐝 𝐆𝐮𝐚𝐫𝐚𝐧𝐭𝐞𝐞𝐬 8+ years of proven expertise 90+ worldwide 🌎 projects 8 out of 10 clients come by recommendations 👨💻 𝐌𝐲 𝐓𝐞𝐜𝐡 𝐀𝐫𝐬𝐞𝐧𝐚𝐥: Programming Languages: Java, Node.js, JavaScript, TypeScript, Python, HTML5, CSS3, SCSS Front-end: React.js, Next.js, Redux, Tailwind, Vue.js, Nuxt.js, Angular, ES12+, Bootstrap Back-end: Node.js, Nest.js, Express.js, Laravel, Spring Boot, Spring Security, Spring Cloud, Spring MVC, Spring Data, Django Databases: MySQL, PostgreSQL, MongoDB (Mongoose), Kafka, RabbitMQ, Redis, JPA/Hibernate, Liquibase, Flyway, R2DBC CI/CD & DevOps: Docker, Kubernetes, Helm, GitLab CI/CD, Jenkins, Terraform, Maven, Gradle, Nginx + PM2 Cloud Services: AWS (EC2, EKS, S3, Lambda, Cognito, Route 53, CloudFront, Certificate Manager, DynamoDB, SQS, CloudWatch), GCP (Cloud Storage, Cloud Functions), Azure Cloud Monitoring & Analytics: Datadog, Kibana, Grafana, ElasticSearch, New Relic Other Tools: WordPress (Custom Theme & Plugins), Strapi, LaraNova, Scikit-learn, Pandas, Keras, TensorFlow, Auth0, Firebase, Telegram API, Binance API, MacOS, Linux Ubuntu LTS 18.04, Windows 10, IntelliJ IDEA, Postman, JIRA, Confluence, SonarQube, Splunk, Slack, Snyk Microservices & Distributed Systems: Microservices architecture, Monolithic (multi-layered/DDD), Monorepo (Nx), Resilience4J, JUnit, Mockito, Apache Commons, Akka, Netty Web3/Crypto: Implemented a trading bot with Binance API using a trailing stop strategy; basic proficiency in Solidity smart contracts; developed a KYC system 👉 Click the 🟢 INVITE 🟢 button to bring your ideas to life! Our fusion of technical mastery and industry know-how ensures every solution is crafted to exceed expectations fostering real, measurable business outcomes 📅🛫🎯🌟 🔎 Keywords to Help You Find Me: Full-stack developer, Web Development, SaaS development, WordPress, Website development, HTML, JS developer, JavaScript, Website Audit, Landing Page development, AI development, Discord, Gaming Full-stack developer, React developer, Node.js, Web app, SaaS, Startup development, Python, React.js, Next.js, Redux, Typescript, Tailwind, Node.js, Nest.js, Express.js, Vue.js, CMS Strapi, Pandas, MySQL, MongoDB, PostgreSQL, Java, Spring Boot, Microservices, Docker, Kubernetes, Terraform, AWS, GCP, Azure Cloud, Binance API, Web3Microservices
SaaS DevelopmentAmazon Web ServicesAPIMinimum Viable ProductPostgreSQLDatabase DevelopmentJavaScriptMicroserviceBack-End DevelopmentWeb DevelopmentSpring BootJava - $30 hourly
- 5.0/5
- (8 jobs)
Senior Full Stack Engineer with more than 5 years of experience. CS Bachelor. Certified AWS Architect. Full cycle of Web application development: design, implementation, testing, deployment, support. I will help you develop low-cost, reliable, fault-tolerant and highly available cloud-based web application. Key technologies: * AWS: Lambda, EC2, ECS, DynamoDB, etc. * Java: Spring Framework, Hibernate, etc. * JavaScript: Webpack, React, Redux * DevOps: Docker, Kubernetes, JenkinsMicroservices
MicroserviceSpring FrameworkReactDevOpsJavaScriptPostgreSQLHibernateJavaMongoDBNode.jsJenkinsCI/CDKubernetesAmazon Web ServicesDocker - $17 hourly
- 5.0/5
- (1 job)
I’m a developer with experience in building websites for small and medium sized businesses. Whether you’re trying to win work, list your services or even create a whole online store – I can help!Microservices
TypeScriptCSSReactHTMLJavaScriptMicroservice - $30 hourly
- 5.0/5
- (3 jobs)
I am a highly skilled Full Stack Developer and AWS DevOps Engineer with a proven track record of designing, implementing, and maintaining robust cloud-based solutions. Skilled in developing end-to-end web applications with expertise in both front-end and back-end technologies. Proficient in a wide range of AWS, adept at optimizing applications for scalability, performance, and cost-efficiency. Strong analytical and problem-solving abilities coupled with excellent communication skills for effective collaboration in cross-functional teams. My Skills: - Front-end: React/Next.js, Vue.js - Back-end: Node/Nest.js, Python/Django - Database: MongoDB, PostgreSQL, MySQL - DevOps: Amazon Web Services(EC2, ECS, S3, Lambda, API Gateway, ELB, ACM, Route 53, RDS, DynamoDB, IaC, CloudFront, EKS, etc), Docker, NGINX, Microservices, Kubernetes - CI/CD Tools: GitHub Actions, Jenkins Why Choose Me: Proven track record of delivering successful AWS projects and Full Stack applications. A commitment to staying updated with the latest AWS and development trends. Excellent communication skills for seamless collaboration and project clarity.Microservices
Infrastructure as CodeAmazon Web ServicesKubernetesMicroserviceDockerNGINXCI/CDNestJSNode.jsResponsive DesignNext.jsReduxReact - $55 hourly
- 0.0/5
- (0 jobs)
Experienced Team and Technical Leader, ex-Chief Technical Officer with a track record of 9 years in production and startups development. Skilled in Java language, its related technologies and frameworks. Proficient in AWS and GCP Clouds, microservices architecture, spearheaded multiple technical teams with 15+ engineers for over 4 years. Successfully created patent applications and technical descriptions of startups. Proven experience in fundraising during pre-seed, seed and bridge rounds. Active participant and speaker in large IT conferences. Expertise in cost optimization of cloud usage, performance optimizations, various strategies of launching products on the market. Qualified Head Trainer of programming with 5+ years of experienceMicroservices
Cost ManagementTime & Cost EstimateApplication Performance Monitoring SoftwareStartup ConsultingStartup CompanyProject DeliveryWeb ApplicationWeb DevelopmentDatabase ArchitectureAWS DevelopmentMicroserviceCloud ManagementSolution ArchitectureJava - $70 hourly
- 0.0/5
- (0 jobs)
Being of broad interests and high analytical abilities, I undertake unique challenges. Therefore, I am being seen as a person for particular tasks in the IT sector. As a holder of a very particular set of skills such as rapid selflearning, thorough self-possessed IT knowledge, proficiency in reverse engineering, I can undertake the most complex and challenging projects and provide simple and effective solutions.Microservices
Architectural DesignApache KafkaDjangoFastAPITerraformKubernetesAWS ApplicationMicroserviceREST APIPythonArchitectureProblem SolvingDevOps - $40 hourly
- 0.0/5
- (0 jobs)
As a backend engineer with a specialization in Rust and Go, I architect and implement backend systems that are fast, scalable, and production-ready. My core strength lies in building resilient infrastructure and distributed services that can handle real-world demands at scale. 🔧 Expertise: ✔️ Backend systems built in Rust & Go ✔️ Microservice-based architecture & API development ✔️ Concurrent processing & systems-level performance tuning ✔️ Blockchain, smart contracts, and decentralized integrations ✔️ SQL & NoSQL database optimization and schema design ✔️ Cloud-native deployments using Docker, Kubernetes, and CI/CD pipelines 🚀 What Sets Me Apart: ⚡ Clean, modular, and well-tested code that’s easy to extend ⚡ System performance tuned for minimal latency and maximum efficiency ⚡ Security-first mindset: encryption, auth flows, role-based access ⚡ Proven ability to deliver under pressure for both early-stage startups and large organizations 🌐 Whether you're developing a high-throughput API, scaling a distributed system, or integrating blockchain tech into your platform—I can help turn complexity into clarity. Let’s engineer something powerful together.Microservices
ELK StackGoogle AnalyticsGrafanaDevOps EngineeringGoogle Cloud PlatformAmazon Web ServicesDockerMySQLPostgreSQLWebsocketsGraphQLRESTful APIMicroserviceGolangRust - $30 hourly
- 0.0/5
- (0 jobs)
Engineer with 3 years of experience in Full-stack development. Worked with various backend and frontend technologies. Responsible, reliable and active person with a desire to solve problemsMicroservices
RxJavaAWS ApplicationApache KafkaApache SolrKubernetesDockerKotlinHibernateMongoDBNeo4jPostgreSQLMicroserviceSpring BootAngularJava - $20 hourly
- 5.0/5
- (1 job)
I'm a Full Stack Developer specializing in creating robust and user-centric solutions in the financial technology sector. With a versatile skill set that includes Python, React, TypeScript, and Kotlin with Ktor, I bring comprehensive expertise to every project. My approach combines innovative design and backend efficiency, ensuring that every application is scalable, secure, and poised to meet the demands of dynamic financial environments. Driven by a passion for technology and its impact on the financial industry, I strive to build systems that not only meet but exceed user expectations. Whether developing interactive front-ends using React and TypeScript or constructing resilient server-side architectures with Python and Kotlin, my goal is to deliver seamless, intuitive experiences.Microservices
JiraGitHubFlaskWebsocketsAPI IntegrationDatabase ManagementMicroserviceResponsive DesignReactJavaScriptKotlinPython - $10 hourly
- 0.0/5
- (0 jobs)
Overview Hello ! 🤚 I am Java developer. I have 3+ years of commercial experience using Java/Spring. I’ve had experience with different projects, from a simple telegram bot to a set of microservices responsible for order processing in one of the major US retailers. I stick to clean and readable code, that is testable and with good performance. Matching requirements of the business is the highest priority for me. I'm here to help you to solve your problems and provide the best solution and service, Technical skills 📌 Platforms: Mac OS X, Windows XP 📌 Programming Languages/Technologies: Java 8-17, JDBC, JSP, Servlets, JPA, Rest, SOAP, Security, OAuth, JWT, JavaScript, HTML, CSS 📌 RDBMS: SQL Server, MySQL, PostgreSQL, Spanner (GCloud), Redis 📌 Cloud: Google Cloud Platform, AWS Services 📌 Methodologies: Scrum, Jira, Pair Programming, Test Driven, Feature Driven, Confluence documentation 📌 Frameworks: React, Spring, Hibernate/JPA, JUnit 4,5, Mockito, Integration Testing (WireMock), Mutation test (PI tests and etc.) 📌 Applications/Web Servers: Tomcat, Docker, Spinnaker, Heroku, JBoss, CI/CD Jenkins 📌 Development Tools: Eclipse/MyEclipse & Plug-ins, Intelij IDEA, Postman, Sonar, JUnits, Log4J, Lombok , Maven, Git LinkedIn: Александр СанинMicroservices
SQLNoSQL DatabaseApache MavenIntegration TestingPostgreSQLDatabaseHibernateMicroserviceJUnitDockerMySQLSpring BootSpring FrameworkRedisJava - $9 hourly
- 0.0/5
- (0 jobs)
As a developer, I have the capability to create server-side applications tailored for small and medium-sized businesses (SMBs). I can also integrate the front-end with the back-end by developing the necessary APIs.Microservices
DockerDesktop ApplicationBack-End DevelopmentRabbitMQMongooseMicroserviceSocket.ioSwaggerREST APINestJSReactRedisMongoDBPostgreSQLUser Authentication - $15 hourly
- 0.0/5
- (0 jobs)
I am a seasoned Java Backend Developer with over 10 years of experience in building robust and scalable applications. My expertise lies in leveraging a strong tech stack, including Java, Spring, JPA, and Hibernate, to design and implement efficient backend solutions. With a solid understanding of Public Key Infrastructure (PKI) and cryptography, I have successfully incorporated secure practices into my development processes. Passionate about problem-solving and performance optimization, I strive to deliver high-quality code that meets both business and technical requirements. Let's connect to discuss how I can contribute to your next project!Microservices
MicroserviceRESTful ArchitectureREST APIOracle DatabaseSpring FrameworkSpring DataSpring BootHibernateJava Persistence APIJava - $15 hourly
- 0.0/5
- (0 jobs)
I am a Java Backend Developer with experience in designing and building scalable, high-performance backend solutions. I specialize in Spring Boot, REST APIs, Microservices, PostgreSQL, Docker, and Kubernetes. 🔹 What I Can Do for You: ✔ Develop and optimize backend architectures ✔ Build secure and efficient REST APIs ✔ Design and manage relational databases (PostgreSQL, MySQL) ✔ Implement microservices with Docker & Kubernetes ✔ Integrate messaging systems (Kafka, RabbitMQ) I am passionate about clean code, performance optimization, and best practices in backend development. Let's build something great together! 🚀Microservices
Agile Software DevelopmentSpring FrameworkCI/CDGitDocker ComposeSQLHibernateApache KafkaKubernetesDockerPostgreSQLMicroserviceREST APISpring BootJava Want to browse more freelancers?
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