Upstaff Developer Profile Directory

Hardworking front-end developer with 3+ years of extensive experience. I’ve worked on several challenging projects and have solid technical knowledge.

- More than 5 years of software development experience using Vue.js, - More than 5 years using WordPress technology. - Intermediate English. - Available ASAP.

Seasoned Full-Stack Engineer with 6+ years of significant experience in designing and building sophisticated web applications, with a particular strength in revenue management systems for the Japanese market. Known for exceptional proficiency in Python, JavaScript, and modern web technologies like Django, Flask, Vue.js, and React. Adept at all stages of software development from requirement analysis to deployment, consistently delivering projects that prioritize user experience and maintainability. Distinctive competencies include deep understanding of data visualization as evidenced by the implementation of complex features for SaaS platforms, combined with proficiency in critical full-stack development tools and practices such as Docker, CI/CD, and AWS. Recognized for a track record of remote freelancing success on Upwork, citing 100% job satisfaction over 24 jobs and more than 5,623 remote hours. Backed by a solid foundation in computer science with a completion of the reputable CS50x course from Harvard University.

- 11+ years of experience in Full Stack Engineer with main focus on JavaScript/TypeScript. - Experienced with all stages of the development cycle for dynamic web projects. - Well-versed in React/Redux & Vue & Angular. - Fluent English - Available ASAP - No vacation plans

- 4+ years of commercial experience in IT. - Experience in developing applications using JavaScript (Vue). - Good knowledge in JavaScript - Experience in Single Page Applications Development - Intermediate English - Available ASAP

Good understanding of HTML5 and CSS3. Highly proficient with Vue.js framework and its core principles. Ready to start ASAP.

As an experienced web developer with 7 years of experience specialising in developing WordPress websites of varying complexity. In the last 3 years, has focused on honing my skills in JavaScript, with a particular emphasis on using Vue/Vuex and WordPress REST API.

- 14+ years of experience in Web & Mobile App development - Fluent English - Available ASAP - No vacation plans

- 8+ years of commercial experience in IT - Experience in developing web applications using Vue.JS (Vuex, Vuetify) - Intermediate English - Good logical thinking, high level of responsibility. Communicative, responsible, hardworking, result-oriented, and team player - Available ASAP

I'm a second-year Computer Science student at Nanyang Technological University with a passion for full-stack development and cloud engineer , I’m seeking internships to combine my technical expertise and business acumen to drive innovative, tech-driven solutions.

Software engineer with a deep foundation in RDBMS design, including extensive experience in developing and bug fixing MySQL. Expertise in client-server protocols, lexical analysis, parsing, and SQL commands. Highly skilled in C and C++, with notable contributions like the MySQL++ API and software critical to the Mars Rover mission. Holds a BSc in Technology, with proficiencies in English, French, Italian, Greek, and Slavic languages. Recognized with numerous industry awards, including the 'MySQL Rock Star 2025'.

- 4+ years of experience as a Data Engineer, focused on ETL automation, data pipeline development, and optimization; - Strong skills in SQL, DBT, Airflow (Python), and experience with SAS, PostgreSQL, and BigQuery for building and optimizing ETL processes; - Experience working with Google Cloud (GCP) and AWS: utilizing GCP Storage, Pub/Sub, BigQuery, AWS S3, Glue, and Lambda for data processing and storage; - Built and automated ETL processes using DBT Cloud, integrated external APIs, and managed microservice deployments; - Optimized SDKs for data collection and transmission through Google Cloud Pub/Sub, used MongoDB for storing unstructured data; - Designed data pipelines for e-commerce: orchestrated complex processes with Druid, MinIO, Superset, and AWS for data analytics and processing; - Worked with big data and stream processing: using Apache Spark, Kafka, and Databricks for efficient transformation and analysis; - Amazon sales forecasting using ClickHouse, Vertex AI, integrated analytical models into business processes; - Experience in Data Lake migration and optimization of data storage, deploying cloud infrastructure and serverless solutions on AWS Lambda, Glue, and S3.

With over a decade of IT support and customer relations, the engineer has a solid track record of driving growth and process improvements in tech-centric roles. Experience includes resolving complex technical issues, optimizing IT systems for improved user experience, and leading cross-functional teams to success. Highlights of their achievements include a significant increase in company revenue, a high rate of customer satisfaction, and earning accolades for exceptional leadership. The engineer's professional background is underscored by impactful roles in operations management and IT support without specifying a computer science education or software engineering particulars.

Senior .NET Developer with over a decade of professional experience, showcasing advanced competencies in scalable and secure web application development, microservices architecture, and cloud solutions. Expertise in crafting optimized code by leveraging C#, ASP.NET Core, Entity Framework, and diverse databases like MS SQL Server and MongoDB. Proven track record in improving system performance, maintainability, and accelerating development cycles through SOLID principles and modern DevOps practices. Demonstrated ability touring in enterprise-level API development, and security enhancements, further leveraging CI/CD, containerization, and serverless technologies in both Microsoft Azure and AWS environments. Adept in applying design patterns and software engineering principles like CQRS, DDD, and the Akka.NET actor model to build robust and fault-tolerant systems.

Software engineer with a Bachelor's degree in Computer Science from Illinois State University, exhibiting a solid grasp of programming methodologies and a 3.1 GPA. Accumulated over four and a half years of professional experience in web development, specializing in technologies such as Vue.js, Joomla, PHP, and cloud computing with AWS. Demonstrated proficiency in deploying complex applications to Kubernetes clusters and optimizing web content. Showcased commitment to continuous improvement by contributing to open-source projects and designing tools like a real-time log analyzer with NUXT.js and a Laravel command-line tool. Robust technical skill set includes JavaScript, PHP, Python, Java, Swift, Rust, alongside tools like GitHub, NoSQL, and REST APIs, ensuring the engineer is well-equipped to tackle a diverse range of software challenges and contribute significantly to any development team.

- 10+ years in software quality engineering, automation testing, and SDET. - 4 years of experience with Python for automation development, scripting, and testing. - Deep skills with Java, Javascript, Typescript, PHP, Groovy, Swift, Kotlin, Ruby, and Go. - 5 years of expertise in mobile test automation using Appium. - Skilled in using Robot Framework for scalable test automation, focusing on RPA and API testing to streamline workflows. - 8 years of experience with Selenium/Selenide for web automation. - Extensive work with relational and NoSQL databases, including PostgreSQL, MySQL, MongoDB, and structured data formats like CSV/XML. - Strong background in CI/CD automation, including Jenkins, Docker, Docker Compose, CircleCI, and Kubernetes. - Experience with various QA tools such as Cypress, Cucumber, Playwright, WDIO, Browserstack/Lambdatest API, REST Assured, Postman, Axios, SOAP, JUnit/TestNG, PyTest, Allure reports, ReportPortal, Guava, AutoIT3 etc. - Created custom automation frameworks (Cypress-based) and migrated legacy QA systems, including CMS. - Experienced in API testing with GraphQL and RESTful services. - Testing techniques: Black-box (BVA, EP, CE, EG), Grey-box (pairwise, traceability matrix, decision tables), and White-box testing (statement analysis). Smoke/Regression/Release testing. - Test strategies development, with test plans, test cases etc. - Documentation, test reporting & analysis creation & maintenance.

- QA Engineer with a strong analytical background. Commercial experience since 2019. - Hands on on both Mobile (iOS and Android native applications) and web applications. - Proficient in employing OS emulation tools like BrowserStack and Azure Storage Emulator, and Remote Test Lab. - Expertise includes hands-on experience with Windows, Android, iOS, HTML, CSS, SQL, and managing databases using MS SQL. - Demonstrates comprehensive abilities in web and mobile application testing, front-end, back-end, and API testing, and database management: Postman, Swagger, and TestRail.

- Having over 25 years of experience as a Senior Software Solutions Architect, Hands-on Technical Team Leader, Full Stack Software Engineer, Business Intelligence (BI), and Applicative Database Administrator (ADBA) - Engineer with extensive experience in software development, demonstrating proficiency in multiple programming languages, including Java, C#, and Python. - Proficient with modern software development methodologies such as Agile and Scrum, ensuring project delivery aligns with business requirements and timelines. - Strong background in computer science with a focus on developing scalable and efficient code, contributing to robust software architecture. - Experience in full software development life cycle (SDLC), including requirements analysis, design, implementation, testing, and maintenance. - Expertise in applying best practices and patterns in software engineering to produce high-quality and reusable code. - Demonstrated success in past projects by optimizing system performance and enhancing user experience through innovative technical solutions.

- Full-Stack Developer with 5 years of experience, specialized expertise in C#, .NET frameworks, Angular, and various other modern technologies. - Demonstrated excellence in the design and implementation of user interfaces using HTML/CSS, TypeScript, and JavaScript, with a keen eye for transforming complex database information into accessible analytical insights. - Proven experience with automated validation, shipment update services, database design, and software development practices including OOP, SOLID principles, and Scrum methodology. - Strong background in computer science with a Bachelor's in Applied Mathematics and Informatics, enhanced by comprehensive skills in development tools such as Git, Visual Studio, and Azure.

- 15+ years of experience as a Software Engineer, specializing in Java, microservices, and system design for backend development; - Expertise in developing and maintaining scalable web applications and microservices with a focus on performance optimization; - Strong experience in building applications using Spring Boot, Kafka, Docker, and RESTful API design; - Proficient in integrating third-party APIs and cloud-based solutions, with a strong background in Azure and AWS platforms; - Extensive experience with SQL (PostgreSQL, Oracle DB) and NoSQL (MongoDB) databases; - Familiar with CI/CD pipelines, using Jenkins, GitHub Actions, and AWS SDK for continuous integration and deployment; - In-depth knowledge of Agile methodologies, contributing to sprint planning, code reviews, and project delivery in international teams; - Experience in unit testing, integration testing, and ensuring high code quality with tools such as JUnit and RestAssured; - Worked on high-stakes projects in the finance, telecom, healthcare, and insurance industries, delivering critical software solutions; - Strong leadership and mentoring experience, managing development teams and delivering successful projects.

- 7+ years of experience as an Embedded Software Engineer with a focus on C/C++ programming, FPGA development, and VHDL; - Expertise in developing embedded systems, designing and implementing low-level software for hardware interfaces and device drivers; - Strong background in FPGA design using VHDL and Verilog, with experience in FPGA programming and hardware/software integration; - Experience with real-time operating systems (RTOS), and communication protocols such as SPI, I2C, UART, and CAN; - Proficient in C/C++ programming, with strong debugging skills using tools like GDB, JTAG, and Oscilloscopes; - Worked on hardware/software co-design and FPGA simulation and verification; - Familiar with Linux and Windows environments, with cross-compilation for embedded platforms; - Contributed to designing and developing embedded systems for automotive, telecommunications, and consumer electronics sectors.

A seasoned Fullstack Golang Developer with over 5 years of specialized experience in Golang, and a broader 9 years with Node.js, complemented by proficiency in other languages such as TypeScript, PHP, and Python. The candidate showcases a strong foundation in computer science with a Bachelor of Engineering in Information Systems Engineering. Throughout their career, they have engaged in various remote roles, underlying their expertise in building scalable distributed systems and web applications. Their open-source contributions, such as 'asyncmachine-go', demonstrate their ability to innovate in control flow libraries. With a history of optimizing financial tech systems and developing complex project management PWAs, the engineer has a proven track record in software engineering, underpinned by knowledge of databases and DevOps, including MySQL, PostgreSQL, and Docker.

solid foundation in front-end development Demonstrates expertise in JavaScript, React, HTML, CSS, and TailwindCSS, with a proven track record of optimizing websites and debugging.

- Frontend Developer at Liorra Tech and previous experience as a Freelance Web Developer and an IT Technician, embodies a strong background in full-stack development and cloud architecture. - Mastery in React, Apollo GraphQL, and technical support, offering robust solutions in technology services and leading digital transformation projects. - Proven history in enterprise-level software implementation and cloud solutions, adept at optimizing operations to meet business objectives. - Academically fortified with a Bachelor's Honors in Computer Engineering ongoing at Cape Peninsula University of Technology, with prior Bachelor's and Higher National Diploma in the same discipline. - Over 5 years of practical industry experience, with specialization in React and related web technologies, empowering businesses across Western Cape, South Africa. - Adept in software development practices, capable of guiding teams through SDLC and deploying innovative technologies that contribute to enterprise efficacy.

Software Engineer with 3.5+ years of experience, specializing in iOS development with Swift and Android development with Kotlin. Proficient in leveraging frameworks like UIKit, SwiftUI, CoreData, AVFoundation, and technologies like MVVM, VIPER, and Clean Swift. Demonstrates strong proficiency in application performance, memory management, and advanced photo editing application development. Holds a Computer Engineering degree and has a solid foundation in coding principles and software development practices. Worked on notable projects involving video streaming, e-commerce applications, and organizational management tools.

- Dynamics 365/Power Platform Engineer with 3+ years of solid experience designing, developing, and implementing CRM systems and Power Platform solutions tailored to business needs. - Skilled in Power Pages, Power Apps (Canvas & Model-Driven Apps), Power Automate, and Dynamics 365 development for CRM systems across different industries. - Has experience with Azure AD B2C, Azure Functions, Azure Pipelines, and LogicApps, ensuring seamless deployment and secure user authentication for CRM systems and portals. - Hands-on experience with .NET/C#, JavaScript, TypeScript, React, Vue.js, and HTML/CSS for plugin development, feature enhancements, and custom web resources. - Pending February 2025 Certifications: Power Platform Fundamentals, Power Platform Developer Associate

- 10+ years experience as a Full-Stack Developer with of developing robust web applications and services, including extensive experience in both frontend and backend technologies; - Technical proficiency with PHP and MySQL for server-side development, advanced JavaScript utilization on the client side; - Strong abilities with blockchain technology engagement, including smart contracts and wallet development using Solidity, Hardhat, Truffle, WalletConnect, and Metamask SDK; - Experienced with libraries Web3.js, and Ethers.js; - Ability to work Ethereum Blockchain, Binance Smart Chain (BSC), with different wallets including MetaMask; - Adept at working with a variety of frameworks and languages beyond core competencies, such as Laravel, Solidity, Node.js, and C++; - Up-to-date with modern practices, possessing comprehensive experience in codebase upgrades, performance optimization, and integrating third-party APIs; - Successfully led a development team, demonstrating strong leadership and project estimation skills.

- 5+ years of experience as a Full-Stack Developer, specializing in .NET (C#), Angular, and AWS; - Backend: Expertise in .NET Core, ASP.NET, Entity Framework, and REST API development; - Frontend: Strong skills in Angular, TypeScript, JavaScript, HTML, and CSS for building dynamic web applications; - Cloud & DevOps: Hands-on experience with AWS services (Lambda, S3, DynamoDB, API Gateway, IAM) and CI/CD pipelines; - Databases: Proficient in SQL Server and PostgreSQL, including query optimization and database design; - Architecture & Best Practices: Experience with microservices, event-driven architecture, and SOLID principles; - Testing & Security: Writing unit and integration tests, implementing security best practices, and API authentication; - Agile & Collaboration: Worked in Agile/Scrum teams, participated in code reviews, technical discussions, and mentoring; - Background in finance, e-commerce, and SaaS projects, developing scalable and high-performance applications.

Six years experienced QA Engineer in manual and automated testing, ensuring robust, scalable, and user-friendly applications. Skilled in identifying issues early, optimizing testing processes, managing QA team and collaborating closely with developers to enhance product reliability.⬥ Experience in testing web applications , mobile applications , Blockchain, E-commerce, software and hardware. ⬥ Programming languages: JavaScript, TypeScript, Java, Python , C# ⬥ API testing: Postman, Apidog ⬥ UI testing: Playwright , Selenium, BackstopJS, Ghost Inspector, Cypress ⬥ CI/CD Integration: GitHub, Docker, Jenkins CI, GitLab

Accomplished ASP.NET full-stack developer with over 10 years of experience, specializing in ASP.NET, MVC, and ASP.NET Core. Expertise in C#, JavaScript, and front-end technologies like HTML, CSS, and React.js. Proficient in database management with MSSQL, PostgreSQL, and Oracle. Strong track record in software analysis, design, and project management, including leading projects for government and banking sectors. Education in IT engineering enhanced by practical application in software development. Recognized for advanced problem-solving skills and commitment to continuous professional development.

A seasoned software engineer with over 5 years specializing in JavaScript/TypeScript and Angular development, this professional demonstrates deep technical expertise, evidenced by robust web application projects and contributions to business growth. Holds a rich engineering background, with a demonstrated history in implementing scalable solutions using frameworks like Angular, Node.js, and containerization with Docker. Technically proficient with modern software development practices including microservices architecture, TDD, and CI/CD, enabling efficient SDLC management. Leveraging a Computer Science degree and fluency in English, the engineer has a track record of mentorship, collaborative feature planning, and execution, underpinning a strong career trajectory within diverse remote and hybrid engineering roles.

Software Engineer with 5+ years of expertise in developing Java-based enterprise and fintech applications. Spearheaded a 15-member team with a focus on cross-functional collaboration to enhance project outcomes. Highlights include raising production system TPS to 500, reducing bug rates by 15%, and improving application uptime. Excelled in a lead role at i2c Inc., with achievements in reengineering APIs for better performance, implementing DevOps practices, and ensuring 100% system uptime. Technical strengths encompass Java, microservices using Spring Boot, distributed systems, API development, and proficiency with Docker, Kubernetes, and CI/CD. Holds a Bachelor's in Computer Science, backed by industry recognition with the Dean's List Academic Achievement Award.