Вакансії Fullstack Developer

Hygge Software is seeking a Senior Full stack Java Angular developer to help automate airline workflows.
The project is actively developing and is already in production.
Current tasks include the development of new sub-projects and functions, as well as the maintenance of existing ones.

Where the Application is Used: USA, Europe, Middle East.
What the Application Does: automates the calculation of charter invoice sales and predicts the number of charters between regions.

The work schedule is in the GMT 0 time zone (this point is negotiable).

Requirements:

• 6+ years Java SE/EE.
• Develop both the frontend and backend components of the application. This includes working with HTML5, CSS3, and JavaScript (ES5, ES6+) for the frontend, and using Angular for building the user interface.
• Experience with frameworks like Spring (Spring Boot, Spring MVC) and Hibernate.
• Understanding of Object-Oriented Programming (OOP) and design patterns.
• Strong proficiency in SQL (writing complex queries, joins, indexing).
• Experience with relational databases such as MySQL, PostgreSQL, Oracle, or SQL Server.
• Knowledge of database optimization and performance tuning.
• Familiarity with data modelling and schema design.
• Knowledge of RESTful API development and integration.
• Experience in designing scalable and maintainable software solutions.
• Knowledge of software architectural patterns (e.g., MVC, Microservices, Event-Driven Architecture).
• Familiarity with CI/CD pipelines (Jenkins, GitLab CI, or similar).
• Experience with containerization tools (Docker, Kubernetes).
• Understanding of cloud platforms (AWS, Azure, Google Cloud) is a plus.
• Proficient in writing unit tests using frameworks like JUnit or TestNG.
• Knowledge of integration testing and test-driven development (TDD).
• Strong knowledge of Git and version control best practices.
• Familiarity with logging frameworks (Log4j, SLF4J) and monitoring tools (Grafana, Prometheus, ELK Stack).

We are looking for a skilled .Net/React Engineer to join our team and contribute to a sophisticated multi-tenant Web Tool tailored for traders.

Project description: it is a sophisticated multi-tenant Web Tool designed for a group of users, primarily traders. The platform enables users to view, manage, and analyze trades conducted by end clients. Using it allows the creation of dummy trades to simulate risk and costs for them, and then match these dummy trades with the done exchange trades. The system is divided into three main modules and an Excel Add-In that provides supplementary functionality, making the project a comprehensive solution for trading professionals.

Technical stack: .NET 8, React.js 16, Redux, TypeScript, Antd, Devextreme, Entity Framework Core 8, SignalR, Hangfire, MySQL (main database), PostgreSQL (for saving time-series data of streamed live prices and whiteboard numbers actions), RabbitMQ (for communication between Windows Services and Web API), FIX protocol for working with trading platforms (consuming data from them), Azure services, Windows services, Terraform and Ansible.

What you’ll be doing:

• Develop and maintain the web application using .NET 8 and React.js 16;
• Collaborate with cross-functional teams to understand requirements and provide technical solutions;
• Implement state management using Redux and TypeScript;
• Design and develop user interfaces with Antd and Devextreme;
• Work on the backend using Entity Framework Core 8 and MySQL for the main database;
• Integrate PostgreSQL for saving time-series data of streamed live prices and whiteboard numbers actions;
• Set up and manage communication between Windows Services and Web API using RabbitMQ;
• Utilize FIX protocol to consume data from trading platforms;
• Implement background job processing using Hangfire;
• Ensure smooth integration and communication between all system components;
• Participate in code reviews, testing, and debugging to ensure high-quality code;
• Stay up-to-date with the latest industry trends and technologies.

What you’ll need:

• 5+ years of professional experience as a .Net Developer.
• Strong proficiency in React.js (version 16) and Redux.
• Experience with TypeScript for building robust web applications.
• Familiarity with Antd and Devextreme libraries.
• Proficient in using Entity Framework Core 8.
• Experience with MySQL and PostgreSQL databases.
• Knowledge of RabbitMQ for message broker services.
• Experience with SignalR.
• Understanding of the FIX protocol and its application in trading platforms.
• Experience with background job processing frameworks like Hangfire.
• Familiarity with Azure services, Terraform, and Ansible for deployment.
• Strong problem-solving skills and the ability to work independently.
• Excellent communication and collaboration skills.

Nice-to-have skills:

• Previous work in the finance or trading industry.
• Familiarity with Windows services and their management.
• Understanding of security best practices in web development.

Softengi is looking for a professional Senior Full-Stack Software Engineer to join our friendly team
As the Senior Full Stack Software Engineer, you will be the technical lead for a project leveraging the Retrieval Augmented Generation (RAG) approach, where retrieval mechanisms enhance generative AI models by integrating external knowledge sources. You will be responsible for architecting, developing, and deploying scalable AI-driven applications that combine state-of-the-art natural language processing with information retrieval systems. You’ll collaborate closely with business analysts, product managers, and engineers to seamlessly integrate AI models into production environments and optimize the performance of RAG-based systems.

Required skills and experience:

• 7+ years of full-stack development experience with Python and JavaScript. Proven leadership experience in AI-driven projects or complex software systems is required.
• Strong backend development skills in Python and JavaScript, with experience building and maintaining APIs and microservices and working with large-scale data systems.
• Expertise in JavaScript and modern frontend development, focusing on delivering responsive and user-friendly applications that integrate complex AI functionalities.
• Experience with cloud platforms (AWS, GCP, or Azure) and DevOps practices, including containerization (Docker/Kubernetes) and continuous integration/delivery pipelines.
• Strong analytical and critical thinking skills, capable of addressing complex technical challenges related to AI, retrieval, and full-stack integration.
• Proven ability to lead a technical team, provide mentorship, conduct code reviews, and ensure high-quality software development practices.
• Strong communication skills, with the ability to explain technical concepts to non-technical stakeholders and collaborate across teams.
• Professional working proficiency in English

Desirable:

• Experience with RAG or similar AI architectures that combine retrieval mechanisms with generative models is desired. Familiarity with information retrieval systems and NLP models is also highly desired.
• Understanding machine learning workflows, including model training, deployment, and optimization.
• Experience with large language models (LLMs) and knowledge retrieval mechanisms like vector or graph databases.
• Experience optimizing the interaction between retrieval systems and generative models to enhance output quality, relevance, and response speed.
• Experience with JavaScript (Node.js, VUE.js, and React)
• Professional working proficiency in Ukrainian.

Responsibilities:

• Leading the development of the RAG-based AI project, overseeing architecture, design, and deployment, defining technical strategy, and guiding the team in best practices.
• Building and maintaining robust, scalable applications using Python, Node.js, and React, ensuring the seamless integration of the RAG architecture.
• Collaborate with other team members to integrate RAG systems into real-time applications. This includes combining retrieval mechanisms (e.g., search engines or document databases) with generative models to enhance the accuracy and relevance of AI outputs.
• Developing efficient backend systems and RESTful APIs to handle high-volume data processing and communication between generative models and retrieval systems.
• Leading frontend development using React, designing intuitive user interfaces that allow users to interact with AI models and retrieve relevant data in real-time.
• Implement cloud infrastructure and DevOps best practices for deploying scalable AI systems, ensuring RAG components are effectively orchestrated in production environments.
• Providing technical guidance, code reviews, and mentorship to junior engineers, fostering a collaborative and high-performing team culture.
• Staying informed on the latest advancements in GenAI and full-stack technologies; Proposing and implementing innovative approaches that push the project’s boundaries.

We’re looking for a Senior Full Stack Developer ready for a new challenge. You are someone that is as customer-focused and passionate as we are about designing great software and having a good time doing it. You are organized, positive, creative, and always focused on the user. You know when to make decisions and when to ask questions. You’re obsessed with detail and love finding new ways to solve users’ problems. Above all, you love to build terrific products.
The tools we provide and support are using many of SAP’s innovations, such as Fiori, Machine Learning/Artificial Intelligence, Cloud Application Programming Model (CAP) on Node.js and RESTful Applicaton Programming Model (RAP) and are built on SAP Business Technology Platform (SAP BTP) and also use SAP’s internal Infrastructure.

What you`ll do:

• You will work in an agile team that is focused on providing Customer Engagement roles with tools and applications that offer a world-class user experience on a state of the art cloud-centric landscape. In other words, our goal is to have “happy users on a cool infrastructure.”. This in turn enables the customer-facing colleagues to “delight customers, always” while managing their engagements. For the customer-facing applications we hold ourselves to the same high standards offering the end-users useful and easy-to-use applications.
• You’ll contribute to the development of user interfaces using HTML, CSS, and JavaScript frameworks in alignment with other senior developers. At the same time you will be building server-side logic and APIs using technologies such as ABAP, oData and SAP CRM.
• To collaborate with other team members and provide transparency on the backlog, you’ll actively participate in Scrum and SAFe Events.
• Being part of the cross-functional team means participating in technical and process-related team discussions and gaining exposure to the full software development lifecycle.
• To ensure the protection of user data, you will learn and apply security best practices in the development process.
• As all team members you’ll actively participate in learning opportunities to expand your skills in both front-end and back-end development.

What you bring:

• 7+ years of professional experience in full-stack development
• Bachelor’s degree in Computer Science, Software Engineering, or a related field.
• Expert understanding of and experience with
  • ABAP Objects
  • SAP UI5
  • HTML5, CSS3, JavaScript/TypeScript
  • Github/VCS.
• Beneficial Computer skills:
  • SAP CRM
  • front-end frameworks (React, Angular, or Vue.js)
  • NestJS
  • Python
• You have strong collaboration and communication skills in English (German as a plus). You have the ability to work effectively in a team and have a passion for technology, a genuine interest in full stack development and willingness to take over responsibility
• You have demonstrated commitment to continuous learning and staying updated on industry trends.

Requirements:

• 1+ year of experience in full-stack development with proficiency in Node.js (Express, NestJS) and React (including JSX/TSX, hooks, and context).
• Solid understanding of databases (PostgreSQL and MongoDB).
• Familiarity with state management using Redux (RTK)
• Experience in building responsive layouts and familiarity with REST APIs and WebSockets.
• Experience with Git for version control.
• Basic knowledge of cloud providers (AWS, GCP, Azure).
• Understanding of security best practices.
• Proficiency in TypeScript.
• Strong team collaboration skills.
• You have the ability to task juggle and a good sense of prioritizing.
• Intermediate or higher level of English for collaboration with international teams.

As a plus:

• Experience with Modern AI API implementation
• Blockchain integration (wallet connect, etc.)

A-LISTWARE is looking full-time for an experienced Strong Middle/Senior Full-Stack (React + Python) Developer

Our Customer:

Our client has created an advanced, interactive virtual care coordinator powered by AI. This care navigator can make thousands of highly personalized phone calls daily, revolutionizing remote care management and addressing the critical shortage of skilled nursing staff.

Required experience and skills:

• At least 4 years of professional experience in software development;
• 4+ year as a Frontend Developer (React);
• 2+ years of professional experience in backend development (Python);
• 2+ years of experience in applications utilizing relational databases as part of the overall application architecture (MySQL or Postgres);
• 2+ years of experience designing and defining architecture, including writing design reviews, and test plans as part of launching software products;
• Bachelor’s degree in computer science or equivalent;
• Good technical problem-solving skills;
• English – Upper-Intermediate.

Would be a plus:

• Experience in CI/CD processes;
• Experience with Cloud (AWS advantage);
• Experience with Redis, or similar frameworks – Advantage Web development – API, Flask, Fast API, ASYNC.IO;
• Experience with Microservices, Docker, Kubernetes.

Ми – українська продуктова IT-компанія Galaktica, яка створює і просуває свої власні онлайн продукти на найбільш платоспроможних ринках світу: США, Канада, Австралія, Велика Британія, ЄС.
Ми вже маємо суттєві здобутки, але продовжуємо далі активно розвиватись. У зв’язку з чим ми шукаємо Middle Full Stack Engineer, який приєднається до нашої молодої, активної і залученої команди!

Основний вектор роботи, з яким зіткнетесь:

• Займетесь розробкою маркетингових інструментів;
• Будете інтегрувати, підтримувати та моніторити маркетингові API;
• Розробите та будете підтримувати систему керування лендінгами.

За якими критеріями ви нам підходите:

• У вас комерційний досвід розробки на NodeJS від 3-х років;
• Ви чудово володієте JavaScript, MySQL, NestJS framework, TypeScript, NextJs;
• Ви створювали та проектували великі високонавантажені системи;
• Знаєте принципи SOLID та патернів проектування;
• Володієте комунікативними та аналітичними здібностями;
• Наявність досвіду роботи і готовність працювати з React.

Буде плюсом:

• Ви раніше працювали з Docker, Kubernetes, AWS, Unit tests та рефакторінгом.

Flexum is looking for a lead full-stack engineer to join our team. We’re a full-cycle product design and development agency that helps innovative companies move forward with their digital products.
We’re completely obsessed with the highest quality of the products we deliver, and our teammates are the most talented, creative, and responsible professionals that you’ll love working with.

Responsibilities:

We’re looking for a passionate full-stack developer that will:

• Analyze deeply the product technical problems and challenges;
• Come up with the best engineering and architecture solutions;
• Implement solutions together with the mates;
• Maintain the best coding practices and development processes;
• Communicate with the client, create technical documentation.

As a tech lead you will:

• Start new projects: define architecture, select proper tools and services, bootstrap new codebases;
• Lead and support project development: help with architectural decisions, review the code, guarantee the highest quality of the solutions;
• Define development processes;
• Mentor and teach other developers;
• Help with research and investigations for the pre-sales activities.

Requirements:

• 5+ years of web development experience;
• Deep experience and expertise in at least one front-end framework;
• Strong experience with servers, databases, and APIs;
• Strong familiarity and willingness to work with React ecosystem while being open-minded about other technologies front-end and back-end technologies;
• At least intermediate English language level.

We are looking for a Full Stack Developer to join our team, who will play a crucial role in the development and support of web projects on the React and Node.js frameworks for both internal and external clients. Your primary responsibility will be to create high-quality and highly functional web applications, ensuring they meet the needs and expectations of our clients. Collaborate closely with team members, including product managers and QA personnel, to collectively achieve team goals and ensure the successful and seamless delivery of projects.

Responsibilities:

• Implement new functionality for backend/frontend-based application based on Node.js runtime within frameworks and libraries.
• Integration of third-party services and support of existing ones.
• Provide accurate project estimates and validate the estimates of team members, contributing to effective project planning and execution.
• Actively engage in developing architecture, approaches etc.
• Conduct code reviews and share knowledge with the team.

Requirements:

• At least 5 years of experience in Node.js runtime, SQL/noSQL and cloud technologies;
• English B2+;
• Teamwork experience;
• Deep knowledge of the JavaScript/TypeScript languages;
• Working with layouts and styles based pre- and post CSS processors;
• Strong understanding of SPA functionality based on React.js library;
• Strong knowledge of data management systems like MobX, Redux or Context-based models and understanding the difference;
• Use of external libraries for data management, such as Redux-Toolkit, Redux-Persist Thunk, Reselect, etc.;
• Experience with Drag-n-Drop functionality (native or libraries like Beautiful-DnD);
• Experience developing Canvas functionality (native or libraries like fabric.js, konva.js);
• Work with chart libraries such as Chart.js, Recharts, ApexChart, etc.;
• Experience developing UI with Storybook framework, Prime-React, React-Bootstrap, MUI, AntD or similar.;
• Ability to compare different UI libraries;
• Use of different libraries for forms functionality such as Formic React-Form etc.;
• Use of the data request libraries like React-Query, Axios, Superagent, Got, Apollo, GraphQL on your projects.;
• Experience making pixel perfect CSS-layouts;
• Experience with React-Virtualized or React-window for optimization;
• Practical usage of Google-Analytics, Google-Insights or similar;
• Strong understanding of SSR techniques based on Next.js or Gatsby. Understanding the difference;
• Familiarity with serverless architecture;
• Knowledge of REST, gRPC, SOAP, GraphQL architectures;
• Familiarity with Docker, Docker compose etc.;
• An excellent knowledge of SOLID (SRP, OCP, LSP, ISP, DIP), DRY, SLAP, KISS;
• Familiarity with Agile methodologies, such as Scrum, Kanban;
• Experience with RDBMS like PostgreSQL, MySQL, MariaDB;
• Experience with noSQL like Redis, Memcached;
• Practical experience in basic CI/CD configuring;
• Strong knowledge of UNIX-based OS;
• Understanding features of Express, Koa, Nest, and their differences;
• Deep understanding of testing and experience in testing frameworks.

Nice to have:

• Experience with other frontend frameworks like Vue or Angular;
• Experience with languages other than the JS/TS;
• Reference from a previous employer;
• Share public links from the successful project you were engaged in;
• Experience with mentoring and training junior developers;
• Experience in developing open-source projects;
• Links to public profiles on GitHub, LinkedIn, Djinni, etc.