Healthcare project is in need of Senior Node JS Engineer.

Senior .NET developer required to work on a banking project. Requirements: - 3 years of experience in backend role on .Net core from 3 years; - Refactoring, refactoring techniques; - Ability to determine the correctness of code test coverage; - Ability to identify and find bottlenecks in the application; - Experience with CI/CD pipelines; - Experience in application development following REST principles; - Deep understanding of OOP concepts, variability; - Architectural patterns, coupling and cohesion; - Database design experience; - Use of NoSQL and relational databases, understanding the pros and cons; - DDD (domain-driven design); - Asynchronous and multi-threading; - Good understanding of HTTP protocol, handling HTTP requests, Websockets; - Knowledge of design patterns; - Experience in conducting code reviews. Tasks: - Analyzing and evaluating requirements; - Participation in architecture design; - Development of new functionality; - Improvement of existing functionality; - Writing unit-tests; - Testing; - Fixing defects and vulnerabilities; - Documentation.

A Senior level specialist is required for a large banking project. The main requirements for the specialist are: - Java Core - Understanding of OOP, SOLID, DRY, KISS, YAGNI. - Design patterns - Strong knowledge of Service, ContentProvider, BroadcastReceiver components. - Android SDK - Technology stack: RxJava2, Dagger2, OkHttp, Retrofit, Room, Mockito, JUnit (knowledge, experience, ability to write unit tests) - Understanding of MVVM, MVP architectures (understanding, experience working within these architectures) - Android material design - Basic concepts of network protocols: http, rest, soap, etc. - Understanding of multithreading in Java - Algorithms and data structures Additional requirements: - Kotlin - Experience working in a team environment Would be a plus: - Kotlincoroutines - Experience with CI/CD customization - Understanding/experience with WebSocket - Experience with Android system services (Sensors, Bluetooth, Alarm, etc.) - Experience with Agile - methodologies Personal Qualities: - Responsibility, goal-oriented, activity(proactivity), communication skills - Ability to understand new things independently and call colleagues for help if necessary. - Striving for continuous development Main tasks: - Create applications for the work of cashiers - Implement systems for interaction with various payment instruments - Implement libraries for working with Android terminals

Basic Requirements: - Java Core - Understanding of OOP, SOLID, DRY, KISS, YAGNI. - Design patterns - Strong knowledge of Service, ContentProvider, BroadcastReceiver components. - Android SDK - Stack: RxJava2, Dagger2, OkHttp, Retrofit, Room, Mockito, JUnit (knowledge, experience, ability to write unit tests) - Kotlin - Understanding of MVVM, MVP architectures (understanding, experience working within these architectures) - Android material design - Basic concepts of network protocols: http, rest, soap, etc. - Understanding of multithreading in Java - Algorithms and data structures Will be a plus: - Kotlin coroutines - Experience with CI/CD customization - Understanding/experience with WebSocket - Experience with Android system services (Sensors, Bluetooth, Alarm, etc.) - Experience with Agile - methodologies Banking project - application for teller work.

- Experience of 2 years or more; - Containers; - Code health; - Tests; - CI/CD; - Timely version updates. Requirements: - Strong knowledge of Java SE 8; - Knowledge of OOP principles, OOP design patterns; - Understanding of microservice architecture; - Experience in enterprise development/development of highly loaded services; - Knowledge of SQL; - Knowledge of Maven/Gradle; - Knowledge of Git; - Experience with Spring/Java EE (preferably); - Experience with Json-RPC, gRPC (desirable); - Knowledge of JUnit/TestNG (desirable); - Familiarity with Netty, WebSocket protocol (desirable); - Experience with Kafka, Zuul (desirable); - Responsibility and punctuality;

Project: Writing quality code. Interacting with analysts, business customers, testers, architects and other workgroup members. Professional Requirements: - 2 years or more of user interface development using JavaScript (ES6); - Strong knowledge of React 16.8 and newer; - Experience using state-managers (Redux, MobX, others) in React applications; - Strong knowledge of HTML/CSS/SASS, XML/JSON; - Experience with SASS, LESS preprocessors; - Experience in writing applications using REST API or WebSockets; - Experience in developing unit-tests; - Experience with git version control system; - Experience in layout and optimization of user interfaces; - Good communication skills, ability to justify the choice of a particular problem solving method or technology choice. Will be a plus: Ability to competently use Typescript, customize Webpack, Eslint, experience with micro-frontend, cryptography, Storybook, CI/CD customization; Ability to competently document the solution being developed, knowledge of OAuth 2.0 standard, experience developing using monorepositories (Lerna). Stack: - Back -Java/Kotlin + Spring Boot - Front - Typescript + React

Golang Developer is required to work on a trading product. Requirements: - More than 2 years of experience as a Golang Developer; - Knowledge and experience with microservices architecture; - Experience with blockchain integration; - Experience with WebSockets, RESTful and RPC based APIs; - Basic knowledge of blockchain; - Experience with API development; - Git; - Experience with message brokers (Kafka); - Solid experience with databases (Postgres); - Experience with database modeling and query optimization; - Experience with unit testing, integration testing; - Experience with continuous integration / continuous delivery; - Basic approaches to security in microservice architecture; - Ability to learn new technologies quickly; Will be a plus: - Basic understanding of symmetric / asymmetric encryption / decryption; - Basic ECDSA / RSA, HMAC, ecliptic curves; - Blockchain account and UTXO based; - Hierarchical deterministic wallet architecture; - Hardware keys (ledger, tresor); - BIP / EIP; - Experience with AWS Enclave; - Familiarity with Logstash, Kibana, Elastic Search stack; - Familiarity with Amazon AWS; - Experience with Python or other programming languages would be a plus.

Tasks: - Participate in backend development of the company's back office and front office systems on the .NET 5 platform; - Integration with the company's trading systems and external services; - Close interaction with business, QA and IT departments of the company; - Writing unit and integration tests. Requirements: - Excellent knowledge of C#, .NET platform and .NET Core; - Experience in web development (REST API); - Principles of multi-threaded/asynchronous web application development including fault tolerance, security and performance; - Proficiency in SQL (MySQL); - General understanding of development methodology, understanding of basic algorithm operation, design patterns, data structures; - Experience developing using ORM (Entity Framework); - Experience with version control systems (GIT). Desired: - Knowledge of Linux administration basics; - Experience with Docker; - Familiarity with WebSocket, gRPC.

Project: trading product Requirements: - More than 3 years of experience as a software engineer in Golang; - Knowledge and experience with microservices architecture; - Experience with blockchain integration; - Experience with WebSockets, RESTful and RPC based APIs; - Basic knowledge of blockchain; - Experience with API development; - Git; - Experience with message brokers (Kafka); - Solid experience with databases (Postgres); - Experience with database modeling and query optimization; - Experience with unit testing, integration testing; - Experience with continuous integration / continuous delivery; - Basic approaches to security in microservice architecture; - Ability to learn new technologies quickly; - English language from level B1; Will be a plus: - Basic understanding of symmetric / asymmetric encryption / decryption; - Basic ECDSA / RSA, HMAC, ecliptic curves; - Blockchain account and UTXO based; - Hierarchical deterministic wallet architecture; - Hardware keys (ledger, tresor); - BIP / EIP; - Experience with AWS Enclave; - Familiarity with Logstash, Kibana, Elastic search stack; - Familiarity with Amazon AWS; - Experience with Python or other programming languages would be a plus. Tasks: - Creating new and maintaining existing services for cryptoassets; - integration with new blockchain nodes; - maintaining, refactoring and improving the codebase; - implementing new features into the cryptocurrency management system. - Participating in code reviews, technical discussions and other team activities.