Upstaff Developer Profile Directory

- 5+ years in web and mobile development (Node.js, NestJS, Next.js, React); - AWS and GCP clouds, including Serverless Framework for serverless app deployment; - PostgreSQL, MongoDB, Docker, and microservice-based architecture; - Delivered real-time features using WebSockets for game logic and session state, REST and GraphQL APIs with Express.js and NestJS; - Experience with billing, auth, and dashboard modules for SaaS, fitness, and e-commerce platforms. Integrated Stripe and Google/Auth for billing and authentication; - Applied CI/CD, unit testing, and agile workflows across all projects

I am a Quadient developer looking for job in Netherlands. I have 9 years of relevant exp and immediate joiner

* Machine Learning Engineer with over six years of experience in AI and machine learning. * Specializes in recommendation systems, predictive analytics, and computer vision solutions. * Experience with predictive models for demand forecasting and property valuation, optimizing inventory and decision-making processes.

Software Engineer with 5+ years of backend development expertise, focusing on API construction, microservices management, and database performance optimization. Proficient in PHP, Node.js, NestJS, JavaScript, TypeScript, MySQL, and PostgreSQL. Holds a Bachelor degree in Science and has worked on enhancing Shopify web applications and designing scalable backend infrastructures. Known for optimizing MySQL queries to increase performance and improve server stability under high load conditions, resulting in more efficient and maintainable systems.

Lead Full Stack Developer with 5+ years of experience specializing in developing scalable web applications and architecting cloud-native solutions. Extensive experience with a wide range of technologies like JavaScript (ES6+), TypeScript, Python, React.js, Node.js, AWS, and DevOps tools including Docker and Kubernetes. Proven track record in leading teams, improving system performance, and integrating advanced security measures. Holds a strong background in Computer Science with a high GPA and certifications in AWS and Google Cloud. Recognized for contributions to the tech community and excellence in optimizing real-time systems.

A seasoned Full Stack Developer brings over six years of experience, specialized in JavaScript, Golang, and React Native, with profound knowledge of modern frameworks like NextJS and NestJS. Proven track record in leading projects from inception to launch, showcased through success in diverse domains such as Legal Tech, AgriTech, and Health. Demonstrates expertise in writing efficient, optimized code, backed by the ability to guide design efforts and manage installations for on-time product rollouts. Familiar with CI-CD pipelines, evident from setting up CircleCI, and skilled in complex technology ecosystems, including Microservices, Kubernetes, Docker, and AWS. Adept at full lifecycle software development practices, integrating various technologies with a focus on robust, scalable web and server solutions.

- 8+ years of experience in software development with a focus on JavaScript, TypeScript, and full-stack engineering; - Built complex web applications using React.js, Angular, and React Native across edtech, healthtech, e-commerce, and banking projects; - Developed cross-platform interfaces, including AI-powered chatbots with Whisper and Heygen, and real-time messaging platforms; - Worked with Redux Toolkit, RxJS, Nest.js, and Express for scalable state management and backend logic; - Delivered serverless APIs using AWS Lambda, API Gateway, Cognito, and integrated MongoDB via Mongoose; - Experienced in performance optimization, refactoring, bug fixing, and CI/CD using the Serverless Framework; - Built and maintained responsive UIs with accessibility, mobile support, and data visualization features; - Participated in team-based delivery with cross-functional collaboration and code quality improvements.

- Full-stack software developer with 15 years of experience - Expert in C#, asp.net, asp.net MVC, .net core, native JS, Jquery, Angular 1 and 2+ generation, and other technologies in the web development stack. - I have experience in C\C++, WinApi, COM, MFC and other technology stacks and I can work with the intersection of these technologies - My experience includes team and technical management, mentoring, and project management for new teams - Industries: Logistics and transportation, business intelligence, insurance and reinsurance, healthcare, government, information technology and services, professional services, computer software. - Upper-intermediate English

Software engineer with practical experience in full-stack web development, encompassing HTML, CSS, JavaScript, Node.js, and MongoDB. Proven track record with internships at CodeCraft Solutions and Nestsoft Technologies, demonstrating strong initiative, self-motivation, and real-world project management. Robust educational foundation with a Bachelor's in Computer Applications plus a specialization in Cyber Security. Developed a Master Study Portal project, showcasing skills in front-end and back-end development, RESTful API integration, and database management using Mongoose. Competent in version control with Git, and proficient with modern development tools such as GitHub and VS Code. Technical skill set further includes Bootstrap, Express.js, and REST API development.

Software engineer possesses robust problem-solving skills and experience in writing scalable code. Specializes in Delphi RAD Studio, with hands-on experience in ETL operations and third-party integration (Kawasaki, Honda, Briggs & Stratton, etc.). Brings proficiency in Azure Cloud Services, Salesforce (Admin + Developer), and diverse programming languages including C and C#. Holds certifications in Salesforce Platform Developer I, Azure Developer Associate, and Azure DevOps Expert. Educational background includes a BS in IT and an M.Sc in Criminology & Security Studies. Over 4 years of experience as a Senior Software Developer and adept in SMS/Email systems, payment gateways, and accounting software integrations.

An adept Senior Software Engineer with a strong background in Elixir/Phoenix, robust API development, and systems scalability. Engineered the 'Wukong API Proxy' to streamline deployment timelines at Mindvalley, resulting in significant reduction of developer wait times. Skillfully managed Robu Sdn Bhd’s software team, developing its B2B2C platform and ensuring efficient cloud-based deployments. At Fave, excelled in site reliability while transitioning infrastructure from AWS to GCP and enhanced web app performances via Elixir optimizations. With a Bachelor's in IT from Universiti Teknologi Petronas, the candidate demonstrates a solid grasp of software development. Emphasizes AI-assisted workflows, mastering languages like Ruby on Rails, Elm/React, and Rust, and diversifies with a foundational understanding of cryptography and blockchain technologies.

Expert with PHP, Symfony, Relational and No-SQL databases. Hands on AWS, Gitlab Ci/CD

Software engineer with over 20 years of experience in core banking system implementations and integrations, with a strong background in computer science and business administration. Expertise in leading integration teams, developing system functionalities and managing end-to-end project deliverables. Proven track record in supervising technical teams, engaging with business stakeholders, and providing solutions within the financial services industry. Hands-on experience with Temenos OFS, CRPL Cash Management, and Oracle Financials, evidenced by successful project completions. Adept in SDLC, Agile methodologies, and possess ITIL and PMI-ACP certifications, signifying a commitment to best practices and continuous improvement in the IT sector.

Seasoned Head of Engineering with 8+ years of experience in driving technical strategy and leading multidisciplinary development teams. Expertise in AI, blockchain, and full-stack custom software solutions including MERN stack, PHP, and MySQL. Proven track record at Macromodule Technologies, shaping engineering culture with agile principles and maintaining focus on delivering business-aligned, future-ready software products. Holds a Bachelor of Science in Computer Science and has previously elevated backend systems at Dtech Systems and spearheaded full-stack projects at ArhamSoft. Known for integrating emerging technologies and establishing engineering KPIs that foster continuous improvement and technical excellence.

- More than 15 years of experience in IT; - 4+ years of experience as a DevOps engineer; - 4+ experience with Kubernetes, Docker, and Terraform; - Good understanding of AWS Cloud Platform; - 2+ experience with Grafana; - Creating new development environments in the AWS cloud; - Deep skills in creating new development environments in the AWS Cloud; - Experience with migration to AWS; - Good knowledge of creating infrastructure and Security levels on AWS; - Experience working with databases; - Good skills in working with high loads; - ASAP

Seasoned software engineer with over 21 years of industry experience, specializing in Java enterprise architectures and full-stack development. Known for executing robust back-end systems using frameworks like Spring, with prowess in front-end technologies like React. Demonstrated expertise in adapting and implementing SOA, REST, and design patterns, which enhance software design and problem-solving effectiveness. Strong history of engaging in complex projects, including NFT marketplaces and web analytics systems using diverse technologies (AWS, SOLR, Lambda). Proven record of delivering end-to-end solutions from architecting secure authentication infrastructures to crafting real-time mobile apps for contact tracing. Educated in Electrical, Electronics, and Communications Engineering, leveraging a deep understanding of the software development lifecycle and agile methodologies to lead multidisciplinary projects successfully.

Highly experienced software engineer with over 10 years in QA, leading various QA teams and projects. - Expertise in testing automation tools Appium, Selenium, Cypress, WebDriver, and Protractor; - Experience with Java, Groovy, JavaScript, and TypeScript; - Skilled in creating test automation frameworks for Web UI/API/Mobile platforms; - Proficient in developing test documentation such as test plans, test cases, and incident reports; - Good understanding of systems development life cycle methodology and QA methodology and tools; - Strong knowledge of CI environment configuration and different operating systems (Windows, Linux); - Ability to quickly learn new technologies and approaches and implement them effectively.

Software engineer with over 27 years of experience, specializing in RDBMS and system software design. Core expertise in developing features and bug fixes for MySQL, including authorship of client-server protocol, lexer, parser, and SQL commands. Proficient in C, C++, and SQL with a demonstrated history of improving software performance and security, evident by contributions to MySQL's client-server protocol deployed in NASA's Mars Rover mission. Notable milestones include a groundbreaking symbol resolution method soon to be published in Springer's 'SN Computer Science' journal and multiple MySQL awards, including 'MySQL Rock Star 2025'. Holding a Bachelor of Sciences from the Institute of Technology, University of Belgrade, with a diverse language skill set and a portfolio of open-source contributions.

Software Engineer​ with 6 years of software development experience. Fluent with agile methodologies, software design principles & approaches.​ Experienced with ​capturing and analyzing business requirements, their decomposition & further tasks planning. Result-oriented, open-minded, stress-resistant. My goal is to grow up ​own professional skills in development and make great contribution to company's growth.

- Experience more than 15+ of professional Software Development and Automation Testing - Tech Lead of QA department, enormous experience in mentoring; - Participation in testing of software applications for a range of business domains; - Experience in testing of different projects for different OS and Application Servers; - Experience with Java, Python automated testing; - Experience with Relational databases and ORM technology; - Experience in writing testing documents (test plans, test cases, etc.); - Experience in common testing techniques including black box, functional, smoke, load, performance, regression, GUI, usability, scenario, etc.; - Good communication skills, ability to learn new software and processes quickly and efficiently. - Upper-Intermediate English. - Availability starting from 08.08.2023

- Accomplished Software Engineer with over 4 years of experience in developing robust code for high-volume businesses. - In-depth expertise in project management and a proven track record of applying skills in the efficient completion of several large-scale projects. - Highly skilled in SEO integration, digital marketing, and community management, particularly within the crypto and blockchain domains. - Holds multiple certifications in Moderating and Community Management, Project Management, Digital Marketing, and web3 management. - Technical prowess in project management platforms, community moderation tools such as Discord and Telegram, and leveraging social media analytics to enhance follower retention and engagement. - Recognized for successfully leading the Web3 community management, with achievements including a 20% improvement in follower retention through the introduction of new analytic protocols.

Organized, collaborative and highly skilled full stack & blockchain developer with 8+ years of professional experience in dynamic and deadline-driven work environments. Self-motivated and self-taught professional who always trends to challenge difficult problems no one dares to try. The following skills can cover your project? - Blockchain (Solidity, Web3.js, Ethers.js) - JS frontend frameworks (React, Vue, Angular, Next, Nuxt, Gatsby) - Backend skills (Laravel, Express, Django, .NET) - Other (GraphQL, Shopify, AWS, Firebase, Google APIs, Typescript) If so, your project is already 99.99% done. The only thing left is to hire me and wait for the perfect result drinking coffee ~_~

Organized, collaborative and highly skilled full stack & blockchain developer with 8+ years of professional experience in dynamic and deadline-driven work environments. Self-motivated and self-taught professional who always trends to challenge difficult problems no one dares to try. The following skills can cover your project? - Blockchain (Solidity, Web3.js, Ethers.js) - JS frontend frameworks (React, Vue, Angular, Next, Nuxt, Gatsby) - Backend skills (Laravel, Express, Django, .NET) - Other (GraphQL, Shopify, AWS, Firebase, Google APIs, Typescript) If so, your project is already 99.99% done. The only thing left is to hire me and wait for the perfect result drinking coffee ~_~

- Versatile Frontend Developer with 4 years of experience in React, React Native, and Vue.js. - Strong track record of working on various projects and delivering high-quality web and mobile applications. - Proficient in JavaScript/TypeScript, React, Redux, Redux Toolkit, Axios, and Vue. - Experienced in mentoring and teaching, with extensive teaching experience. - Skilled in Agile methodologies, Git, REST APIs, and MongoDB. - Familiar with Docker, AWS, Firebase, and Azure Devops. - Proficient in frontend development frameworks and libraries such as Material-UI, Antd, Tailwind, and Bootstrap.

- Experienced software engineer with 20+ years in Linux-based systems and infrastructure automation; - Skilled in developing networking tools and microservices in C, Go, Rust, and Python; - Hands-on experience with embedded platforms such as OpenWrt and LEDE; - Worked with distributed networking tools including vallumd for IPset distribution; - Experienced in firewall setup, routing, and network performance tuning; - Built CI/CD pipelines and automated deployments using Terraform, Ansible, GitLab, and Docker; - Familiar with Kubernetes and infrastructure-as-code practices in hybrid environments; - Used Bash and Python to automate system processes and infrastructure tasks; - Worked on wireless and telecom-related projects, including Express Wi-Fi and Android-based OTA tools; - Maintained and customized Linux distributions across ARM, MIPS, and x86 architectures for embedded and cloud systems.

A highly proficient Full-Stack Developer with over 7 years of experience, specializing in AI and NLP applications alongside web development. Adept at optimizing large language models, designing intelligent systems, and developing full-scale software solutions. The engineer's technical skill set encompasses Python, JavaScript, TypeScript, Java, C++, and SQL, with mastery in AI & NLP tools such as Hugging Face and TensorFlow. Their proficiency extends to full-stack development with a focus on MERN stack and Vue.js, demonstrated by a history of delivering high-performance, responsive e-commerce platforms, and proprietary CMS interfaces. With a Bachelor's degree in Computer Science and a strong background in DevOps practices, cloud platforms, and deployment technologies, the candidate has a proven track record of enhancing backend performance and streamlining deployment pipelines, positioning them as an asset for technically demanding roles.

- Network Engineer with 7 years of a solid track record of successfully troubleshooting, implementing, and maintaining complex network infrastructures. - Expertise spans enterprise, data center, and ISP environments, encompassing vendors like Cisco and Juniper for routers and switches, Fortinet and Palo Alto for firewalls, and F5 and Pulse Secure. Additionally, experience in Zscaler VPN SSL clients and Azure and AWS Cloud environments. - Previous roles included network operations, support, design and implementation, architecture, and end-to-end network implementation. - Currently holds the following certifications: Cisco's CCNA and CCNP, Juniper's JNCIA, JNCIA-Security and JNCIS-Service Provider and Amazon's AWS Cloud Practitioner. - Available to travel to customer site if required. - Available to work outside business hours, including weekends and bank holidays. - Proficiency English

Software engineer with extensive experience in full-stack development, focusing on back-end technologies. Expertise in PHP, Laravel, MySQL, Redis, and Vue.js, with a background in computer engineering. Proficient in solving workflow issues through system design, exemplified by creating a generator tool that enhanced efficiency by a significant margin. Skilled in optimizing database queries and implementing TDD, familiar with Docker and Stripe integrations. Proven track record of improving team performance with task automation and has contributed to open source projects. Holds a strong commitment to continuous learning and problem-solving in high-traffic environments.

A proactive software engineering student immersed in foundational studies and Higher National Diploma coursework, with a focus on software engineering principles as mandated by the IIT curriculum. The engineer displays a blend of technical prowess and an emerging proficiency in digital marketing tools. Technical familiarity includes a command of digital platforms and a learning trajectory in CRM tools. Although specific programming languages and systems development life cycle (SDLC) experience are not detailed, the engineer's academic route aligns with an understanding of key software engineering methodologies. A penchant for content creation across social media further showcases a versatility that extends beyond core software development, poised to contribute inventively to tech-centric marketing initiatives.

- Software engineer with 10+ years of experience, specializing in Web and Blockchain technologies; - Expertise in Solidity for designing and deploying smart contracts; - Experienced in using Hardhat and Truffle for smart contract development and testing; - Deep abilities in Ethereum ecosystems and Solidity-based architectures; - Skilled in Ether.js and Web3.js for building dApps; - Proficient in designing complex systems, including yield farming and DeFi protocols; - Strong background in full-stack development; - Skilled in Node.js, Express.js, PHP, Java, and Kotlin for backend development; - Experienced in front-end development with Vue.js and EJS JavaScript frameworks; - Proven experience leading projects from concept to deployment across the entire SDLC; - Skilled in mentoring remote teams and collaborating effectively across functions; - Experienced in solution architecture, designing scalable systems, and ensuring smooth integration across platforms.

- 15 years in the software development industry as a Java Engineer - 6+ years of experience with Keycloak, utilizing Keycloak for permission and role/group-based authorization with decentralized user access management. - Adept at integrating Keycloak with external user sources such as LDAP and databases, and implementing custom sync mappers for groups. - Proficient in designing and implementing architectural solutions of web-based applications. - Team leading, organization of development process experience. - Experience with Java, and JS (SpringBoot, ReactJs). - Experience with different DB engines, and SQL performance optimization. - Web app security. Authentication & Authorization. - DevOps (Docker, K8s, Jenkins) - AWS Cloud - Upper-Intermediate English