Hire the best Backend Rest API Freelancers in Kyiv, UA
Check out Backend Rest API Freelancers in Kyiv, UA with the skills you need for your next job.
- $39 hourly
- 5.0/5
- (4 jobs)
Hi, I am an AWS software architect and AWS developer passionate about working on systems that require big data processing and I have a decent experience working with different kinds of software. My primary expertise lies in the IoT, FinTech and eCommerce domains, however I remain open to exploring and contributing to other industries that demand innovative, data-driven applications. ⚡ IoT Platform I have worked on a distributed IoT platform in AWS IoT with numerous integrations and a complex architecture. Transitioned the platform from Telit to AWS IoT Core. Technologies used: 🔹 Java Spring Boot with AWS ECS to develop a scalable message-processing microservices pipeline 🔹 Dagger 2 with AWS Lambda for efficient dependency injection in serverless applications 🔹 Node.js (TypeScript) with AWS Lambda functions to implement specific integrations and enhance functionality 🚀 FinTech Trading System Developed a robust, scalable trading system capable of handling dozens of symbols across multiple accounts and brokerages. Technologies used: 🔹 The trading system is being developed using Java and Kotlin within a Spring Boot microservices architecture 🔹 Apache Kafka integrated to support the backtesting of extensive datasets 🔹 To complement the backend functionality, I developed a simple UI using React and Redux, enabling users to interact with the system 🔹 Additionally, I researched and implemented a separate module written in Python, leveraging Deep Reinforcement Learning (DRL) techniques to explore advanced analytical capabilities 🔹 Integrations with OpenAI, Binance, Metatrader (via MetaApi), and Snapi news API (Crypto, Forex, Stocks) further enriched the system’s versatility and scope 🔹 For CI/CD processes, I utilized GitLab and Docker Compose with a Cloud Native Buildpacks (CNB) approach to streamline deployments and ensure efficient workflows 🛍️ E-commerce Worked as a full-stack developer on various e-commerce projects, utilizing a wide variety of technologies and frameworks such as Java, SAP Commerce Cloud (Hybris), Spring, Apache Kafka, Hibernate, Hazelcast, Apache Solr, Kubernetes, React, and others.Backend Rest API
Web ApplicationWeb DevelopmentCI/CDReactRESTful APIAPI IntegrationDevOpsDockerPostgreSQLJavaScriptAPIAmazon EC2Amazon Web ServicesPythonNode.js - $36 hourly
- 5.0/5
- (3 jobs)
⭐ 𝟭𝟬+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 experience as a certified Node.js | Backend Node | React Node | Back End Developer Node.js 🏆 𝗨𝗽𝗪𝗼𝗿𝗸 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 💎𝗙𝗹𝘂𝗲𝗻𝘁 𝗘𝗻𝗴𝗹𝗶𝘀𝗵 🔥 𝗔𝘀 𝗮 𝗙𝗨𝗟𝗟-𝗧𝗜𝗠𝗘 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿, 𝗜 𝗰𝗮𝗻 𝗮𝘀𝘀𝗶𝘀𝘁 𝘄𝗶𝘁𝗵 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝟯𝟬+ 𝗵𝗼𝘂𝗿𝘀 𝗮 𝘄𝗲𝗲𝗸! I am a generalist with 10 years of experience in Node.js | Backend Node | React Node | Back End Developer Node.js back-end and front-end full stack development, DevOps practices, QA automation, and web security. For the last few years, I have been responsible for the whole IT department in all aspects. I was a chief for 3 teams and covered all technical needs for them. Maintained 2 big projects in production. My long-term goal is to become a system architect. Middle term goal is to gain expertise in a wide range of technologies. Looking for a position of Full-stack Developer (Node.js developer | Full Stack Developer React Node | Backend nodejs) for a remote job with a flexible schedule. In the first place, I will look for product companies with professional management and a precise long-term roadmap. The presence of architect and DevOps in a company is preferable. Technical skills: * DDD, CQRS, GoF patterns, Porto SAP * PHP, Laravel, Apiato, Symfony, Yii, Zend * Node.js, Express.js, Restify, Koa.js * React, Vue.js, Socket.io, * HTML5, CSS3, Bootstrap, SASS, Canvas Buzzwords: Node.js | Backend Node | React Node | Back End Developer Node.js Nodejs NodeJS Framework Next.js Firebase MongoDB RESTful API Amazon Web Services API Integration iOS Mobile App Development TypeScript PostgreSQL React Native OpenAI API Node.js developer Full Stack Developer React Node Backend nodejs Front-End Development Full-Stack Development Back-End Development MVP SAAS Ecommerce Retail Healthcare Wellness Finance Fintech Medical Dashboard Marketplace Advertising Automotive Retail Business Innovations Ecology Entertainment Human Resources LegalTech Lifestyle Fashion Logistic Marketing Navigation Website Web App From Scratch E-learning Education Platform Rebuild Upgrade Modernize Prototype Start-Up High-Friendly Custom Development Expert Building Fix Good Knowledge Talented Experienced Skilled Strong Experience Proven Experience Proficiency Optimizing Transform Deliver Solution Ensure Create Enhance Implement Great problem-solving Excellent Communication Assist Collaborate Mobile App Development Web App Development User Interface Design Payment Integration Stripe Looking for Agency Team Company Specialist Proven Track Record Payment Gateway ERP CRM Develop and Maintain Write Clean Code Deep Expertise Bring To Life Cross-platform User-friendly Interface Strong Background Attention to Detail Long TermBackend Rest API
React NativeMobile App DevelopmentRESTful APIAmazon Web ServicesPostgreSQLMongoDBTypeScriptNodeJS FrameworkNext.jsFull-Stack DevelopmentFront-End DevelopmentNestJSMERN StackReactNode.js - $35 hourly
- 5.0/5
- (13 jobs)
Welcome! As an established IT Manager, I can provide you with a series of business required needs based on my experience in delivering complex solutions. My coding experience, and systems architecture knowledge helps here a lot as well. Here you go with the list of projects and tools used I've been up to recently, leading them to the successful delivery: 1. Wordpress development a) Standard marketing websites, showcasing your brand, value and letting the world know of your business b) Woocommerce websites, providing streamlined structure for the continuous delivery of changes and continuous deployment c) Custom plugins development, providing either non-existing, or requested unique functionality, or getting a mix of the existing functionalities gathered in one bundle 2. Magento 1 and 2 CE and Commerce development. a) Standard M1 to M2 migrations b) M2 maintenance and continuous improvement c) Complex development from the scratch, including ERP-integrations (like SAP, SalesForce and similar) 3. Mobile apps development a) Delivering hybrid mobile apps based on Phonegap/Cordova or React Native b) Providing Web-to-app conversions services c) Establishing and maintaining the working backend infrastructure for Native apps Let me know please what your plans are, and I can help you with establishing the project plan and of course, I am providing you with the dedicated team to get your idea delivered. I'm looking forward to discussing the project details with you. Do not hesitate to contact me.Backend Rest API
RESTful APIHTML5LaravelReactMagento 2WordPressLAMP StackPHPJavaScriptGatsby.js - $7 hourly
- 4.9/5
- (25 jobs)
"Hi! 👋 I'm a backend developer with 3 years of experience specializing in Java ☕ and the Spring Framework 🌱. With a robust understanding of SQL 🗄️, REST 🌐, and various database systems, I’m dedicated to creating high-performance, scalable, and maintainable applications. 🚀 My expertise in testing 🧪 and deployment ensures that my solutions are functional and reliable." Technical Skills: 🟡 Programming Languages: Java 🌱 Spring Framework: Spring Boot, Spring Core, Spring Data Access, Spring Web, Spring MVC, Spring Security 📦 Object-Relational Mapping: Hibernate, JDBC, JPA, OXM ✅ Testing: JUnit, Jupiter, Mockito, Unit Tests, Integration Tests 🛠️ Build Tools: Maven 🗄️ Databases: SQL, MySQL, PostgreSQL 🔄 Version Control: Git 💻 IDEs: IntelliJ IDEA, Eclipse, Neovim 🔗 Other: Java OOP, Collections, Exception Handling, Streams and Lambdas, Concurrency and Multithreading, Input/Output (I/O), Memory Management, Design Patterns, Annotations. What I Offer: 🌐 Backend Development: Building RESTful APIs and microservices with Spring Boot, ensuring efficient data handling and service integration. 📊 Database Management: Designing and implementing robust database schemas and optimizing SQL queries for MySQL and PostgreSQL. 🧪 Testing Excellence: Writing comprehensive unit and integration tests to ensure code quality and functionality. ⏩ Agile Methodologies: Familiar with Agile practices, enabling rapid development and iterative feedback. 🤝 Collaboration: Strong communicator who thrives in team environments, working closely with front-end developers, product managers, and stakeholders. Why Work With Me? ✨ I am passionate about technology and continuously seek to improve my skills and stay updated with industry trends. My approach combines technical expertise with a commitment to delivering quality solutions that meet your business needs. I take pride in writing clean, efficient code and always look for ways to enhance performance and scalability. Let’s Connect! 🎉 If you’re looking for a dedicated backend Java developer who can deliver results, I’d love to discuss your project further. Feel free to reach out, and let’s create something amazing together!Backend Rest API
RESTful APIJava MEJava Media FrameworkJ2SEJavaFXMySQL ProgrammingJava Collections FrameworkJava Persistence APIJava Servlet APIJ2EECore JavaAPIMySQLSpring BootJava - $30 hourly
- 0.0/5
- (1 job)
🔥 Laravel 🔧 PHP 🚀 Vue js ✨ React js 🖌️ HTML CSS Bootstrap 💻 JavaScript 🛠 jQuery ⚙️MySQL Hi there! I’m a Full Stack PHP Laravel developer with broad experience in projects that merge Laravel with Vue and React . My proficiency in multiple frameworks enables me to deliver adaptable and efficient solutions designed to achieve project objectives Front-end Development Technologies : ✅ React.js ✅ Vue.js ✅ Angular ✅ JavaScript ✅ jQuery ✅ Bootstrap Back-end Development Technologies : ✅ Laravel ✅ Yii2 ✅ CodeIgniter Database Architect : ✅ MySQL ✅ MongoDB ✅ PostgreSQL I have already worked with such industries as: ✅ E-commerce ✅ Healthcare ✅ Real Estate ✅ ChatGPT integration ✅ Social media ✅ Sales ✅ Education ✅ Legal ✅ Digital marketing ✅ Finance 📩 I am happy to dive into your project and learn more about it. Get in touch with me to see how well I can fit your needs!Backend Rest API
RESTful APIWeb ApplicationBootstrapWeb DevelopmentDatabase ArchitectureCustom PHPAPI IntegrationLaravelHTML5CSSHTMLJavaScriptMySQLAPIPHP - $30 hourly
- 5.0/5
- (7 jobs)
In my person you find a developer who engaged in creating front-end solutions using the latest tools and practices. I never try to present myself as something I'm not in the eyes of the client. I approach project execution honestly and openly. I'm not afraid to ask a lot of questions - all to translate your ideas into solutions. What can I do: ✔ Complete Landing Page Development ✔ Ongoing Maintenance and Updates for Established Production Websites ✔ Developing E-commerce Solutions with Subsequent CMS Integration ✔ Developing Single Page Applications (SPAs) using moder technologies and practices. ✔ Development of distinct pieces of functionality, such as calculators, timers, forms, and quizzes. ✔ Boosting Website Performance through Page Speed Optimization using modern tools such as DebugBear and Pagespeed API ✔ Complete cycle of work with WordPress websites. Adding/configuring plugins. Fixing errors on existing sites. Handling internationalization, migrating to another hosting/domain. Technologies I use: ✔ Nuxt / Vue 3 / Vue 2 / React ✔ TypeScript / JS ES6 / jQuery ✔ HTML5 / Pug ✔ CSS / SCSS ✔ Bootstrap 5 / Tailwind CSS ✔ PHP / WordPress / WooCommerce / Strapi ✔ WordPress REST API / WooCommerce REST API ✔ Git, Git flow ✔ Gulp / Webpack / Vite ✔ Amplitude / Meta Pixel / Google Analytics / TikTok PixelBackend Rest API
Photo EditingBootstrapGSAPwebpackgulpGitRESTful APIWooCommerceWordPressCSSTailwind CSSHTMLJavaScriptVue.jsNuxt.js - $40 hourly
- 5.0/5
- (81 jobs)
6+ Years experience in developing as Fullstack - Proficient in PHP, JQuery, CSS, HTML, - Skilled in Vue.js, React, Angular, Javascript - Experienced with popular platforms like WordPress, Magento, Opencart, Shopify, Prestashop - Specialized in Laravel, Yii2, Phalcon, and more If you're seeking a dynamic and knowledgeable web developer, rest assured that my extensive skill set allows me to adapt to any project. Whether you're envisioning a sleek business website, a robust e-commerce platform, or a cutting-edge web application. Let's collaborate and bring your digital aspirations to life! I look forward to the opportunity of working with you and creating something extraordinary.Backend Rest API
API DevelopmentReactFront-End DevelopmentPhalconGitRESTful APIAngularLaravelYii2Back-End DevelopmentVue.jsWordPressJavaScript - $45 hourly
- 5.0/5
- (1 job)
I am a full-stack software engineer with over 5 years of experience, having a Master's Degree In Computer Science and developing distributed enterprise applications, as well as a variety of web applications addressing different domains and user needs. Incredibly precise problem-solver who thoroughly plans, investigates and looks at the product from different perspectives (considering customer satisfaction, vision, scalability, reliability, and maintainability). My expertise includes API development and testing, software design, distributed system design, CI\CD, AWS, Docker, Full-stack JavaScript and PHP, Node.js, TypeScript, and many other skills that help me solve business issues effectively. My last job position was as Sr. Software Engineer at German eCommerce Unicorn, where I designed and implemented modules of distributed enterprise systems and had the opportunity to work on challenging projects that showcased my problem-solving abilities. What sets me apart is my strong commitment to teamwork and effective communication. I have a proven track record of hosting engineering chapters, mentoring junior team members, and enhancing the onboarding process to foster a collaborative work environment.Backend Rest API
Amazon Web ServicesRESTful APICI/CDCloud ComputingAgile Software DevelopmentDockerSoftware DesignWeb DevelopmentGPT APIREST APINode.jsSQLPHPTypeScriptJavaScript - $40 hourly
- 5.0/5
- (3 jobs)
Hello, my name is Vladyslav and i'm from Ukraine. Last 8+ years i work as a Web Developer. I worked in large and small businesses. I have experience with such technologies as: ☑ PHP ☑ JavaScript ☑ Go ☑ Mysql ☑ PostgreSql ☑ Yii2 ☑ Symfony ☑ Laravel ☑ Angular ☑ React I have experience in maintaining big and small projects and building them from scratch. In relation to web dev i am interested in stable long term projects. I can consider small projects related to Golang. Let's solve your problem!Backend Rest API
LinuxYii2PostgreSQL ProgrammingRESTful APIMySQLPostgreSQLGitDockerSymfonyGolangLaravelAngularJSPHPReactJavaScript - $40 hourly
- 4.7/5
- (4 jobs)
👋 Hi! My name is Andrey and I am a Lead Software Engineer at Join.To.IT 👨💻About Me: ✔ Experience: 4 years in web development. ✔ Front-end stack: Vue.JS, React.JS. ✔ Back-end stack: Laravel, Node.JS ✔ Experience in Databases: MongoDB, MySQL, PostgreSQL, Microsoft SQL Server, MariaDB, DynamoDB. ✔ Area of expertise: Healthcare, E-commerce, FinTech, ERP, CRM, Travel, Hospitality, Real estate, Marketplace, Manufacturing, Insurance, LMS (Learning Management Systems), Logistics, Martech, Car Rent, Social Networks. ✔ Development for me is a challenge where I am capable of creating complex projects and finding the best solutions. I'm a part of the team where I can realize my professional skills and create great products. With our solid experience in both mobile and web applications, it will be easy to deliver software of any complexity. We specialize in complicated applications development using React.JS, React Native, Vue.JS(Javascript), PHP(Laravel), Python, (Django, Flask, Golang) and Node.JS, Express.JS (Javascript). ⭐ Why Join.To.IT ✔ Specialized in services for MVP and Startups; ✔ Solve business needs, not only coding; ✔ Top-rated Plus Agency; ✔ The talented team in web design and development of IT solutions since 2012; ✔ 50+ team members (Senior - 30%, Middle - 70%, Junior - 0%); ✔ There are no impossible tasks; ✔ Learning new technologies is a must for our developers; ✔ Experienced team of project managers makes the building of software an easy routine. 🔥 These services we provide with a discount: ✔ QA; ✔ QA of API Postman collections; ✔ Dedicated Project Manager; ✔ Wireframing and business analysis; ✔ 6 months of warranty and debugging. ✔ 3 months of support; Want to know how much will be the development of your project? Send a free quote request now! Would be happy to help you! Contact me any time within the Upwork chat! Kind Regards, AndreyBackend Rest API
AWS ApplicationCustom PHPVue.jsLaravelWeb ApplicationReactRESTful APIMySQL ProgrammingPostgreSQL ProgrammingVuexUX & UIJavaScriptHTML5Web Development - $60 hourly
- 5.0/5
- (4 jobs)
Python(Django/Flask/FastAPI), JS/TS(React/Next.js), HTML5&CSS3, PostgreSQL/MySQL/Oracle(raw, SQLAlchemy/Django ORM), NumPy/(Geo)Pandas, Celery, Redis, WebSockets, Docker, git. Data structure and algorithms, designing, engineering best practice. Technology is my craft and passion. The products that I implement are a combination of accumulated experience, innovative solutions and a pragmatic approach. During communication with the client, I stick to the principles of high responsibility and strict following to agreements. Especially deadlines. Efficiently.Backend Rest API
Next.jsReactRESTful APISQLAlchemyFlaskDjango StackSoftware DevelopmentSoftware ArchitectureHTML5CSS 3TypeScriptJavaScriptMySQLPostgreSQLPython - $35 hourly
- 5.0/5
- (22 jobs)
Senior PHP Laravel Developer | 10+ Years Experience with Laravel (4–10), PHP, Vue.js, API Integrations Expert in PHP & Laravel-based development: scalable, secure, and high-performing apps Laravel + PHP are my core tools for building modern web solutions – from startups to enterprise PHP Laravel – my space 🔹 Backend: Laravel (4–10), PHP (OOP), MVC, RESTful APIs, Microservices with Laravel, Laravel Nova, Laravel Forge 🔹 Frontend: Vue.js with Laravel backend, JavaScript, jQuery, Backbone.js 🔹 Databases: MySQL optimized for Laravel, PostgreSQL with Laravel Eloquent, MongoDB, ElasticSearch 🔹 Cloud & DevOps: AWS (S3, SES, EC2, RDS) for Laravel hosting, Docker, Jenkins, CI/CD for Laravel deployments 🔹 Testing & Automation: Cypress, Laravel Dusk, Postman, WebdriverIO, JMeter, Selenium 🔹 CMS & E-commerce: OctoberCMS (Laravel-based), Shopify API, Laravel-integrated Stripe/PayPal solutions From complex Laravel backend systems to custom PHP integrations, I deliver optimized, secure, and scalable solutions. Let’s build something great with Laravel – message me now! 𝐔𝐩𝐝𝐚𝐭𝐞𝐝: April 8, 2025Backend Rest API
CakePHPMongoDBGraphQLPayPal IntegrationStripe APIDockerAWS LambdaRESTful APIAPI DevelopmentElasticsearchMySQLPostgreSQLVue.jsPHPLaravel - $49 hourly
- 5.0/5
- (4 jobs)
I am integrating different systems and solutions using Zapier, Integromat, and Pipedream since 2019. Please contact me for any job you need to integrate solutions or build a streamlined, automated process. I already have experience integrating more than 70 services, including the following: Data storage and processing: Read, insert, update the data, creating the stored procedures for complex business logic (also I'm database developer in the past) - MSSql - MySql - FireBase Data synchronization, building dashboards for complex workflows, connecting to forms, user migrations, multilanguage solutions - Airtable - Google Spreadsheets - Google Forms, JotForm, TypeForm Messengers: Slack, Telegram, Facebook Messenger, Viber, Instagram direct - Creation of informers, bots for users or chats. Email: Gmail, Mailchimp, SendGrid - Sending plain and HTML personalized emails Other systems: ClickUp, HubSpot, Xero, PayPal, Zoom, PayPal, Stripe, Accredible Certificates, Uploadcare, Wix (REST API), Buffer, PDFMonkey, SignRequest, SimpleCert, and many others. Some details are in the portfolio.Backend Rest API
Google Cloud PlatformRESTful APIHTMLZoom Video ConferencingSQLPayment Gateway IntegrationTelegram APIAirtableJSONNode.jsZapierAutomationAPI IntegrationMake.com - $35 hourly
- 5.0/5
- (4 jobs)
Hello, my name is Kyrylo and I'm experienced Front End Developer. • More than 5 years of commercial experience; • Proven experience in React, TypeScript, Redux; • Experience with UI libraries: Ant Design and MUI; • Experience with Firebase; • Experienced with TDD, DDD, OOP and Micro Front-end Architecture; • Experienced in team management, time management;Backend Rest API
React NativeMobxRESTful APIwebpackNext.jsFirebaseReactMaterial UIGitJestReduxTypeScriptJavaScriptCSSHTML - $50 hourly
- 5.0/5
- (14 jobs)
[Last profile update: 13 Feb 2023] Welcome! ✅ I can help: ➜ Your business to grow via DEV support; ➜ To bring your whole idea, or new features of your existing product to market faster without major problems; ➜To make the DEV processes in your company faster and more cost-effective by building an appropriate App Development flow ✅ I provide the following Services: • Tasks related to Cloud Migration, and Cloud Development using Azure. • Microservice architecture implementation. • .Net Core development • ASP.NET Web API (RESTful) • Asp.Net MVC • Azure Services • Docker, Kubernetes • Highload systems • GitHub / CI / CD / Azure DevOps ✅ Qualifications include 9+ years of software development experience; ✅ Azure Developer Associate Also, I am leading a Dev company CodeFormation CodeFormation is a software development company that helps you at any stage of the product software development cycle: from R&D and building MVP from scratch to scaling, UX analyzing, and improvement. We produce effective, actual, and profitable software products in collaboration with the product owner and customer-side stakeholders. Our team is fully concentrated on the IT solutions, while the customer administrates the workflow and gets the opportunity to focus on the top-ranking tasks. Let`s discuss your request on a call during the next 1 hour.Backend Rest API
C#Azure DevOpsDatabaseRESTful APIKubernetesDockerCloud MigrationSQL.NET CoreSoftware Architecture & DesignRESTful ArchitectureMicroserviceASP.NET Web APIWeb ServiceMicrosoft Azure - $46 hourly
- 5.0/5
- (27 jobs)
💪 With a wealth of experience in web development, I understand the dynamic nature of projects and the need for speed and efficiency, regardless of whether you have an in-house development team. My expertise shines in collaborating on diverse projects. I find great value in working alongside teams from different backgrounds, which allows for a rich exchange of knowledge and skills. No matter the scale of your project, be it developing with PHP frameworks like Laravel or setting up a Shopify store, I am equipped to contribute effectively. 💎 Choosing me as your collaborator, you'll benefit from: ✅ Integrity: I believe in transparency and honesty, vital for building long-term professional relationships. I commit only to what I can achieve, ensuring reliability and trust. ✅ Dedicated Focus: I dedicate myself fully to one project at a time, ensuring that your project receives all the attention it deserves, leading to better quality and outcomes. ✅ Attention to Detail: My approach is meticulous, recognizing that the finer points often make the most significant difference in the quality of work. ✅ Effective Communication: I prioritize clear and consistent communication, essential for seamless collaboration and project success. ✅ Respect for Deadlines: I set realistic deadlines and adhere to them, understanding the critical importance of timely project completion. ⚙️ My technical toolkit includes: ✔️ Core Technologies: - PHP - Symfony - Laravel - MySQL - Vue.js - React.js - Next.js - Node.js - JavaScript - HTML5/CSS3. ✔️ Development Tools: AWS, Docker, Bootstrap, jQuery. ✔️ CMS and E-commerce: WordPress, Shopify. ✔️ Specializations: - Custom Shopify store development - Shopify theme customization - API integration, - Stripe integration - Chat GPT integration - eCommerce automation - Performance optimization - Custom app/plugin development. I am eager to hear more about your project and discuss how I can contribute to its success. Let's connect to explore how we can achieve your goals together.Backend Rest API
Database ArchitectureNext.jsReactRESTful APIWeb DevelopmentLaravelCSSDockerHTMLAPIPHPJavaScriptVue.jsSQLMySQL - $35 hourly
- 5.0/5
- (2 jobs)
💼 7+ Years Experience Experienced programmer in incorporating user and business requirements into cost- effective and secure Web applications and Telegram Bots. Served as a core group member, architected, developed and participated in the design and testing of client-server applications in crypto. Reengineered business-critical applications which fueled improvements to their speed, accuracy, and security. ✅Programming Languages - Java, Typescript, Scala ✅Spring Stack - Spring Framework, Spring Boot, Spring Security, Spring Data, Spring Cloud ✅Libraries - Bitcoin4J, Ton4j, TelegramBots ✅JS Frameworks – Vue js, React.js ✅Technologies - Hibernate, JPA, Apache Kafka ✅Databases - PostgreSQL, MongoDB, FIreBase, Redis ✅Build Tools - Apache Maven, Gradle ✅API - Open API, GraphQL, Telegram API, Ton API ✅Security- JWT, OAuth2, KeyCloak ✅Testing - JUnit, Mockito ✅DevOps - Docker, Argo-CD ✅Cloud - AWS, KubernetesBackend Rest API
CI/CDCryptocurrencyBot DevelopmentTelegramJavaSpring FrameworkScalaSQLPostgreSQLBusiness Logic LayerMongoDBRESTful APIVue.js - $60 hourly
- 5.0/5
- (18 jobs)
I help companies ship production software that scales, performs, and sells. Tech-lead by day, code artisan by night, I pair deep Python expertise with modern JavaScript, cloud DevOps and hands-on AI integration to turn ideas into revenue-generating products. ⸻ 🔑 Core Strengths • Python Back-End – Django, Flask, FastAPI, Celery, async I/O, REST & GraphQL • Front-End – React / Next.js (SSR & SSG), Vue, Mithril, Tailwind, TypeScript • AI / LLMs – OpenAI, Google Gemini, Anthropic Claude → translation, content generation, semantic search, RAG, agents & automations • DevOps – Kubernetes, Docker, Terraform, GitHub Actions, GitLab CI, Jenkins • Cloud – AWS (ECS, EKS, RDS, S3, CloudFront), GCP, DigitalOcean • Data & Viz – PostgreSQL, Redis, Pandas, Plotly Dash, Streamlit • Quality First – TDD/BDD, pytest, Playwright, Pact, Sentry, 90 %+ coverage targets ⸻ 📈 Results I Typically Deliver • 4× inbound leads by architecting a DRF/Next.js platform with AI-generated SEO that hit 100 % Core Web Vitals in six weeks. • -48 % API latency on a genomics Dash app via async workers & smart caching. • Telegram trading Crypto bot broadcasting to 50 k users/day with 99.9 % uptime (Docker Swarm + AWS). • Mentored dev teams, instituted CI/CD & IaC pipelines, and raised test coverage from 55 → 95 % on multiple projects. ⸻ 🚀 How I Can Help You 1. End-to-End Product Delivery – turn a concept or requirements document into a secure, scalable, production-ready application (web, mobile, or SaaS). 2. AI Enablement – chat, summarisation, translation or data-insight features powered by OpenAI/Google Gemini/Claude. 3. Performance & Reliability Upgrades – profiling, caching, micro-services, observability. 4. DevOps Overhaul – Docker-first workflows, Kubernetes clusters, zero-downtime CI/CD. 5. Technical Leadership – architecture reviews, team mentoring, roadmap planning. ⸻ I continuously invest in professional development—tracking emerging technologies, completing advanced courses, and engaging with leading engineering communities. This commitment keeps my toolbox modern and ensures every solution I architect leverages battle-tested best practices. Passion for elegant, maintainable code guides every decision I make. 💬 Need a partner who thinks in user stories, speaks in pull requests, and backs decisions with metrics? Click “Invite to Job” and let’s build something exceptional.Backend Rest API
AI App DevelopmentDevOpsAI ChatbotAI Content CreationRedisPostgreSQLMySQLKubernetesCeleryRESTful ArchitectureRESTful APIDockerArtificial IntelligenceReactPython - $32 hourly
- 5.0/5
- (2 jobs)
🚀 Experienced Full-Stack Engineer 🚀 Are you in search of a seasoned Full-Stack Java + Angular engineer with a proven track record of delivering top-notch, cutting-edge solutions? Look no further! With over 6 years of industry experience, I'm your trusted partner for transforming your ideas into scalable, robust, and stunning web applications (or any custom software). 💼 Services I Provide: - Web application development - Custom software development (bots, desktop apps, etc.) - API design & implementation - Testing & QA 🏢 Industries I've Worked In: ✔️ Logistics ✔️ Fintech & Trading ✔️ MedTech ✔️ E-commerce I believe in delivering the best possible results to my clients. Here's how I do it: 1. Adhere to industry best practices and coding standards, ensuring clean and maintainable code. 2. Provide daily updates on work progress to keep you informed. 3. Continually update my skills and knowledge to stay at the forefront of technology. 4. Excel at solving complex problems - no challenge is too big for me. Having worked in diverse business domains worldwide, I understand the importance of high-quality, timely, and personalized IT services for every customer. My goal is to provide you or your business with the best expertise available. 🛠️ My Skill Set Includes: ☑ Java (Spring, EE, JSF, JSP) ☑ Angular (TypeScript) ☑ HTML / CSS ☑ JavaScript ☑ Bootstrap / PrimeNG / Kendo UI ☑ Python (FastAPI, Django, Flask) ☑ REST API / SOAP / WebSocket ☑ SQL (Oracle, PostgreSQL, MySQL) ☑ NoSQL (Mongo) ☑ Message brokers/queues (Apache Kafka, RabbitMQ) ☑ Docker / Docker compose / Kubernetes ☑ Figma (UI design) ☑ WordPress 🗣️ What Clients Say: “Dmytro's expertise, collaboration, and commitment to quality are outstanding. He consistently delivers on projects of varying scales.” – IT Dakon “ID AL. Solutions and Dmytro Dubynskyi's exceptional work in building our complex trading platform is highly commendable. Their professionalism, effective communication, and timely delivery set them apart.” – Business & Modernity “Dmytro and his team possess extensive knowledge, technical expertise, and excel in establishing efficient workflows. Their services are reasonably priced, considering the exceptional quality.” – Serg Novak, private entrepreneur. 🌟 Let's Turn Your Vision into Reality 🌟 Whether you're initiating a new project, need assistance with an existing one, or seek technology consultation, I'm here to assist. My passion is crafting exceptional software that empowers your business to thrive in the digital age. Let's discuss how we can collaborate to achieve your goals. Your success is my priority, and together, we'll create something extraordinary. Contact me now, and let's embark on this exciting journey! 👍Backend Rest API
Web DevelopmentBot DevelopmentBack-End DevelopmentFull-Stack DevelopmentTrading AutomationFigmaSOAPSpring MVCMongoDBAngularPythonSQLJavaRESTful APIHTML - $44 hourly
- 5.0/5
- (2 jobs)
Greetings! I'm a Senior Back-End Developer with more than 6️⃣+ years of experience specializing in crafting web and mobile solutions to propel your projects forward. With a versatile skill set and huge expertise ready to create efficient and scalable ⭐⭐⭐⭐⭐ stars applications. Web&Mobile Applications RockStar who can help you to handle your idea with of 5 stars ⭐ and 100% JSS 🚀 ⚙️ Technologies: Python, Django, Flask, Node.js, Express.jsFastAPI, SQLAlchemy, Celery, Scikit-Learn, NumPy & Pandas Here's what I bring to the table: 🔧 Expertise: Proficient in developing and maintaining back-end systems, I bring a wealth of experience in architecting solutions that meet the most demanding requirements. 💡 Innovative Solutions: I thrive on challenges and excel in finding innovative solutions to complex problems, ensuring your projects stand out in today's competitive landscape. 🚀 Scalability & Performance: Whether it's optimizing performance or ensuring scalability, I have a proven track record of building back-end systems that can handle high loads with ease. 🤝 Collaborative Approach: I believe in open communication and collaboration, working closely with clients to understand their needs and deliver tailored solutions that exceed expectations. Let's work together to turn your ideas into reality. Whether you're building a new platform or enhancing an existing one, I'm here to help you succeed. Get in touch, and let's create something amazing! Let's achieve success together with WeSoftYou! Last updated: November 4, 2024Backend Rest API
Web DevelopmentNode.jsPythonDjangoCeleryBack-End DevelopmentServerless StackJiraAWS LambdaDockerNGINXRabbitMQPostgreSQLRESTful APIGit - $40 hourly
- 5.0/5
- (1 job)
Hey, my name is Denys and I'm an experienced software developer with a heavy tech stack and expertise in various areas. I am always easy to reach and open for your ideas. There is a personality behind each line of my code! Don't hesitate to contact me about projects of any complexity. I guarantee the job to be done with high quality and on time. Skills: • Web Development with Python - Django, Flask, FastAPI • JavaScript – Vue.js. React.js • DB – MySQL, PostgreSQL, MongoDB, Azure SQL, MS SQL • Cloud-native development - Azure, AWS, GCP • Kubernetes, Docker • Ajax • HTML5, CSS3 • Git • Integrations – PayPal, Stripe etc • Web-servers – Apache, Nginx Regards, Denys 07/08/2023Backend Rest API
EnglishLinuxEnglish to Russian TranslationPostmanEnglish to Ukrainian TranslationDjango StackRESTful APIGitHubpandasPostgreSQLPythonGitDockerHTMLDjango - $40 hourly
- 5.0/5
- (3 jobs)
🌟 Detail-oriented approach and problem-solving skills 🌐 Strong understanding of web development and user experience 🏅 Certified Full Stack Developer with over 10 professional certifications 🚀 Created over 100 websites in 5 years, with a 98% success rate 👉🟢 Tap the "𝐈𝐍𝐕𝐈𝐓𝐄" button and let’s start working together!! Oliver ⭐⭐⭐⭐⭐: "Valentyn was amazing to work with on our Laravel project! He understood our vision perfectly and remained patient as we made changes throughout the process. His deep knowledge of Laravel, combined with his creative input, made the outcome outstanding. Excellent communicator and truly a pleasure to work with. We’re thrilled with the final result. Thank you for everything!" Charlotte ⭐⭐⭐⭐⭐: "Valentyn was excellent to collaborate with—the project was completed efficiently, on time, and communication was seamless. This was our first project together, and I am looking forward to hiring him for more Laravel tasks in the future." Jackson ⭐⭐⭐⭐⭐: "Valentyn delivered exceptional work and was very responsive to my needs, often suggesting better solutions that enhanced the final result. I would always hire him again for future projects." 💻 My Services: ▪️ Laravel + PHP Development: Building scalable and secure web applications using Laravel and PHP. 🔧 ▪️ React Development: Creating interactive and responsive front-end applications with React. ⚛️ ▪️ Payment Integrations: Seamlessly integrating payment gateways for secure transactions. 💳 ▪️ End-to-End Website Solutions: From design to deployment, I handle the full development cycle. 🌐 ▪️ Performance Optimization: Ensuring fast and efficient websites with top-tier speed. ⚡ ▪️ SEO Optimization: Enhancing your site's visibility with basic SEO for better rankings. 📈 ▪️ Clear Communication & Smooth Collaboration: Transparent processes from start to finish. 🗣️ 📝 Work steps: 1️⃣ Client Discovery: Understanding client goals and project requirements. 2️⃣ Preparation: Analyzing potential challenges and solutions. 3️⃣ Development: Full-scale development using technologies tailored to the project’s needs. 4️⃣ Testing & Quality Assurance: Ensuring functionality through thorough testing. 5️⃣ Deployment & Support: Project launch and ongoing support to maintain and improve performance. 🛠️ Backend: ▪️ Laravel / Livewire ▪️ PHP ▪️ OOP / MVC / Design patterns ▪️ RESTful API ▪️ Webhooks 🛠️ Frontend: ▪️ Javascript / jQuery / Alpine.js / Inertia ▪️ React.js / Redux / Zustand ▪️ TypeScript ▪️ HTML5 / CSS3 / LESS / SASS / SCSS ▪️ Material UI / Bootstrap UI ▪️ Vite / Webpack ▪️ CKEditor 🛠️ API Integrations: ▪️ PayPal, Stripe (and similar integrations) ▪️ Auth: Google, Facebook, TikTok, Telegram (and similar integrations) Ready to kick things off? 👉🟢 Tap the "𝐈𝐍𝐕𝐈𝐓𝐄" button and let’s start working together!! Best regards, Valentyn Humenchuk KEYWORDS: Laravel Web Development, Laravel E-commerce Solutions, Laravel API Development, Laravel Custom Web Development, Laravel CMS Development, Laravel Application Development, Laravel Backend Development, Laravel Full Stack Development, Laravel Web Design, Laravel Frontend Development, Laravel MVC Architecture, Laravel Rest API Development, Laravel Mobile App Integration, Laravel Database Management, Laravel Responsive Design, Laravel Secure Web Development, Laravel Social Media Integration, Laravel SEO Optimization, Laravel Performance Optimization, Laravel Real-time Applications, Laravel Cloud Application Development, Laravel Project Management Tools, Laravel SaaS Development, Laravel Integration with Third-party Services, Laravel Payment Gateway Integration, Laravel Multilingual Websites, Laravel Automated Testing, Laravel Agile Development, Laravel Microservices Architecture, Laravel CRUD Operations, Laravel Dynamic Content Management, Laravel Theme Development, Laravel Data Migration Services, Laravel User Authentication, Laravel User Authorization Systems, Laravel Single-page Applications, Laravel Data Encryption, Laravel Code Refactoring, Laravel Website Maintenance, Laravel Laravel Lumen Development, Laravel SEO-friendly Web Development, Laravel Web Application Security, Laravel Laravel Passport Integration, Laravel Task Automation, Laravel Multi-platform Development, Laravel Data Visualization, Laravel User Experience Optimization, Laravel Interactive Web Features, Laravel Real-time Notifications, Laravel Push Notification Services, Laravel Content Management Systems, Laravel Laravel Nova Development, Laravel GraphQL Integration, Laravel Event-driven Development, Laravel Continuous Integration, Laravel Serverless Architecture, Laravel Website Load Balancing, Laravel Web Performance Tuning, Laravel Page Speed Optimization, Laravel Cloud Deployment.Backend Rest API
User ExperienceFront-End DevelopmentJavaScriptRESTful APIFull-Stack DevelopmentEcommerce WebsiteWeb DevelopmentCSSMySQLReactWebsite OptimizationTailwind CSSHTMLPHPLaravel - $40 hourly
- 5.0/5
- (1 job)
🍔 "𝐈𝐟 𝐆𝐨𝐫𝐝𝐨𝐧 𝐑𝐚𝐦𝐬𝐚𝐲 𝐜𝐨𝐨𝐤𝐞𝐝 𝐮𝐩 𝐝𝐢𝐠𝐢𝐭𝐚𝐥 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬, 𝐈'𝐝 𝐛𝐞 𝐭𝐡𝐞 𝐜𝐡𝐞𝐟 𝐢𝐧 𝐭𝐡𝐞 𝐤𝐢𝐭𝐜𝐡𝐞𝐧 𝐨𝐟 𝐜𝐨𝐝𝐞, 𝐬𝐞𝐫𝐯𝐢𝐧𝐠 𝐠𝐨𝐮𝐫𝐦𝐞𝐭 𝐏𝐲𝐭𝐡𝐨𝐧 𝐛𝐚𝐜𝐤𝐞𝐧𝐝𝐬." 🍔 During the last 7 years, I delivered 50+ projects to industries such as 𝐑𝐞𝐚𝐥 𝐄𝐬𝐭𝐚𝐭𝐞, 𝐅𝐢𝐧𝐭𝐞𝐜𝐡, 𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞/ 𝐑𝐞𝐭𝐚𝐢𝐥, etc. My benefits: ✅ 6+ years of proven track record in Web Development ✅ 50+ delivered projects ✅ Extensive experience in API integrations ✅ Master's degree in Computer Science ✅ Comprehensive understanding of the fundamental principles in computer science, with a focus on data structures and algorithms. ❔What do I create: ➤ Custom web applications ➤ API integrations ➤ CRM/ERP systems ➤ SaaS ➤ Platforms / Marketplaces ➤ Services for business internal usage 💪 The most powerful technology list for your project: ✔️ Django ✔️ FastAPI ✔️ Flask ✔️ Docker ✔️ Kubernetes ✔️ Git • Celery • Redis • Nginx • Go • PostgreSQL / MySQL/ SQLite • MongoDB • Elasticsearch • Firebase • SQLAlchemy Do you want to boost your business with top software? Press the "Invite" button at the top of my profile, and let's chat!Backend Rest API
AIOHTTPPython AsyncioWebsocketsGoogle APIsCeleryFirebaseElasticsearchAPI DevelopmentRESTful APIDjangoPythonRedisMongoDBAPI IntegrationPostgreSQL - $35 hourly
- 4.6/5
- (11 jobs)
Hi, my name is Dmytro, I'm a Back-end Developer with 4 years of experience and a passion for crafting robust and efficient digital solutions that power your web applications. Let me be your technical anchor, dedicated to building the foundation that drives the digital world behind the scenes. My core competencies include working with: 📌 Python 📌 FastAPI, Django/DRF, Flask 📌 AWS, Heroku I have experience with several popular frameworks, which allows me to choose the best tool for creating a high-quality user interface according to your needs. Moreover, I am good at working in a team and appreciate the exchange of knowledge, but I am also able to independently solve problems and look for new solutions to improve the quality of work. 💪 More about my skills that will help us achieve the best result: ✅ FastAPI, Django/DRF, Flask, Celery, Bootstrap, SQLAlchemy, Numpy/Pandas; ✅ SQLite, MySQL, Microsoft SQL, PostgreSQL, Alembic; ✅ NoSQL - MongoDB, Neo4j, Redis; ✅ HTML, CSS, LESS, Sass; ✅ AWS, Heroku; ✅ Git, GitHub, GitLab, BitBucket; ✅ Agile, Scrum, Kanban, Waterfall, Pair Programming, Feature Driven. 🔹I am always striving for excellence and am ready to work on projects of any complexity. 🔹I am a fast learner and willing to learn new technologies and frameworks to stay up to date with the latest trends in the industry. 🔹I also appreciate quality communication, so I am ready to offer you timely communication and solutions that will be useful in the long run. 🔹I am sure my experience and skills can be useful for your company and I will gladly participate in your project. I'm here to bring the engine of your web applications to life, ensuring they run smoothly and securely. Let's work together to turn your digital aspirations into a reality. If this sounds like a fit for you, I’d love to chat – invite me to interview and grab some time.Backend Rest API
AIOHTTPWebsocketsAPIBack-End DevelopmentRESTful APIAPI DevelopmentNeo4jpandasAmazon Web ServicesFlaskNumPyRedisPostgreSQLDjangoMongoDB - $43 hourly
- 5.0/5
- (1 job)
👋 Hello, I'm Ilya, a Middle .NET Developer based in Ukraine. My passion lies in unraveling complex engineering puzzles, and I wield a robust technology stack to achieve that. I'm ready to turn your project ideas into reality and bring maximum value to your tasks. 💼 My Experience💼 🏬Archysoft: Tasks I handled: Developed APIs and new features for a startup CRM platform tailored for construction accounting in the USA. What I delivered for the client: API Integration, new features for the CRM platform (as enhanced employee/contractor management) and optimized project collaboration using Scrum methodology. Tools I used to achieve this: .NET Core, ASP.NET Core, EF Core, PostgreSQL. 📊 SCULPT IT: Tasks I handled: Contributed to the development of APIs and integration with thirdparty services for a multiway synchronization platform specializing in shared contacts and calendars. What I delivered for the client: Improved the FrontEnd using Angular 12, maintained integration of third-party service providers to the system. Tools I used to achieve this: Angular 12, HTML/CSS, .NET Core, ASP.NET Core, EF Core, MongoDB. 🏢IT ENTERPRISE: Tasks I handled: Developed a personnel\HR management module within an ERP system for medium and large enterprises. What I delivered for the client: Addressed issues, implemented new features, and facilitated product implementation for clients. Tools I used to achieve this: .NET Framework, proprietary libraries, SQL. 👨💻 My Technology Stack👨💻 Languages: C#.NET, SQL (MS SQL Server / TSQL, Oracle, PostgreSQL). Development Frameworks: ASP.NET Core, .NET 6, Entity Framework, EF Core 6, Windows Forms. Web Services: WCF. Data Integration: Redis, RabbitMQ. Data Mapping: AutoMapper. Methodologies: Agile (Scrum). Version Control: Git. Clouds: AWS, Azure. Testing: Unit/Integration testing. 🤝 What You Get When Working With Me🤝 Transparent communication and a thorough understanding of project progress. Adaptability to your unique requirements, methodologies, and technologies on the project. A proven track record of successfully solving complex challenges in both commercial product development and outsourcing (see reviews). 🌐 Languages🌐 English (Upper Intermediate). Ukrainian (Native). 🚀 Ready to collaborate on your next project and provide tailored solutions that align with your business needs! 📩 Feel free to reach out to me, and I promise a quick and responsive response!Backend Rest API
.NET Stack.NET CoreRESTful APIMicrosoft AzureASP.NET CoreEntity FrameworkASP.NET Web APIC#CSSASP.NET MVCMicrosoft SQL ServerJavaScriptHTMLAngularMySQL - $40 hourly
- 5.0/5
- (19 jobs)
Hi!👋 Looking for an experienced software engineer? You found the right person. I am Microsoft- and AWS-certified engineer with 8 years of experience in developing enterprise applications. Having this expertise, I am well-equipped to provide you with a tailored solution that addresses your specific needs and requirements. I am committed to delivering high-quality work and ensuring your satisfaction. Let's collaborate to achieve your goals and drive success in your projects! My core skills are: ✅ C#/.NET ✅ ASP.NET ✅ Databases (SQL Server, MongoDB) ✅ AWS (EC2, RDS, Lambda, CloudFront, SQS, CI/CD, Beanstalk etc.) ✅ Azure (WebApps, Functions, EventBridge etc.) ✅ CI/CD (AWS, GitHub Actions, Teamcity, Octopus) ✅ Infrastructure-as-Code (Terraform, CloudFormation, Spacelift) ✅ Containers (Docker, Kubernetes) ✅ Search engines (Lucene, ElasticSearch)Backend Rest API
Cloud MigrationCloud ArchitectureCI/CDCloud Computing.NET CoreElasticsearchAWS LambdaRESTful APIKubernetesMicrosoft SQL ServerASP.NETEntity FrameworkDockerC#Amazon Web Services - $40 hourly
- 5.0/5
- (12 jobs)
I'm a Ruby/JavaScript Developer with a Bachelor's Degree in Computer Science. I've got experience working remotely alongside distributed teams for Ukrainian-based companies for the last 8 years. I've worked on large-scale SAAS applications, and I love what I do. I really enjoy working with STARTUPS, and I love to help them create MVP products and transform concepts into working applications. I always make sure to write GOOD CODE that won't get thrown away. Recently, I focused on modern websites building like Ruby on Rails and Hotwire using React for scalable and reliable SaaS platforms. - Ruby 3+, Rails 7, 8+ - Ruby on Rails, Hotwire(Turbo + Stimulus), Hanami, Sinatra - JavaScript, React, NextJS, AngularJS, Vue - PostgreSQL, SQLite - Redis, Supabase - Heroku - Docker & Docker Compose Let's go ahead 🚀! NikitaBackend Rest API
API IntegrationBack-End DevelopmentRedisPostgreSQLRESTful APIAPI DevelopmentHerokuSinatraVue.jsNext.jsHanamiJavaScriptRubyRuby on RailsReact Want to browse more freelancers?
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