Upstaff Developer Profile Directory

Expert Data Engineer with 6+ years of professional experience, specializing in DataOps and DevOps, with a master's degree in Industrial Analytics from Uppsala University. Proficient in building scalable data pipelines using a variety of technologies including Snowflake, AWS, Lambda, PySpark, and Kafka, evidenced by success in event-driven pipeline creation and real-time data ingestion projects. Skilled in automating deployment using Ansible and GitHub Actions, and in data transformation with a focus on automation and efficiency. Accomplished in data analysis and visualization, utilizing tools such as Power BI, DAX, and Power Query. Possesses strong programming skills with extensive use of Python, and experience in database support with expertise in SQL. Demonstrated ability to develop IoT solutions, engage in network engineering, and apply advanced Linux administration techniques.

Software engineer leveraging robust academic foundation in Computer Science with hands-on experience in Flask, Python, and Django to build scalable web applications. Proven track record in deploying high-traffic websites leveraging advanced Django framework. Strong comprehension of software development life cycle principles, ready to contribute to cutting-edge technology projects.

With over 12 years in the software industry, this Senior Full Stack Technical Lead excels in leading teams and architecting a wide range of applications using technologies like ReactJS, NextJS, React Native, Flutter, and NodeJS. This includes proficiency in Redux-Saga and Redux-toolkit for state management, as well as utilizing MaterialUI for UI development. Versed in both front-end and back-end coding languages, methodologies, and databases, they consistently deliver complex projects, such as a BBL Bank web application and managing a city center web portal in Saudi Arabia. Their engineering prowess is backed by a Diploma in Software Engineering and a B.Sc., reinforcing their strong theoretical foundation. Methodically familiar with SDLC and agile practices, they are adept at project management using JIRA and have experience in AWS environments. Additionally, their technical toolkit encompasses CI/CD pipelines with Jenkins and CircleCI, and version control expertise with Github and Gitlab.

Accomplished Full Stack Blockchain Developer with over 9 years of experience in the industry, specializing in the integration of Web3, Rust, Solidity, and other technologies to create innovative blockchain solutions and decentralized applications (DApps). Expertise in front-end and back-end development evidenced by projects like BIMA and Bitcross, with skills in JavaScript, React JS, Node.js, and database management. Adept in building robust smart contracts on various blockchains such as EVM, Solana, and Arch Network, having contributed to key projects including Bitflow, Nimbus, and Trustbet. A solid computer science foundation from Rajiv Gandhi Technical University bolsters a career marked by technical proficiency and readiness for team collaboration as well as independent work. Proven track record of leveraging full-stack development capabilities and deep blockchain knowledge to meet and exceed project requirements.

• 13 years managing IT infrastructures across Windows and Linux environments. • Automation (Ansible, Terraform), Сloud administration (Azure, AWS, GCP), and security hardening with OPNsense, PFsense, and Sophos. • SaaS administration and automation (Microsoft 365, Entra ID/Azure AD, SharePoint, Power Automate), including Identity and access management services with SSO. • Ability to design and maintain scalable systems, implement SIEM solutions, and optimize performance while reducing operational costs.

A seasoned Software Engineer with over 5 years of specialized experience in frontend development and test automation, as well as a decade in the IT sector. Key competencies include advanced proficiency with React ecosystem, TypeScript, JavaScript, Material UI, Next.js, and familiarity with backend technologies like C#. Proven track record in leading feature initiatives to improve user experiences and operational efficiency, signified by a 40% reduction in duplicate entries and a 60% rise in proactive permission requests at a cloud kitchen operations platform. Expertise in continuous integration and delivery pipelines, demonstrated by contributions to Azure DevOps and CI/CD best practices. Capable of handling both development and QA roles effectively, evidenced by the establishment of test automation frameworks using tools such as Cypress and Playwright. Adept in a variety of programming environments and methodologies, the engineer has successfully orchestrated end-to-end functional testing, test design, and has a strong record of professional advancement as a self-learner and analytical problem solver.

Software engineer with close to 3 years of experience specializing in AI automation, proficient in Python programming, and experienced in backend systems and workflow automation. Holds a partially completed Bachelor's degree in Business/Commerce with an expected graduation date of March 2026. Demonstrated history of working as a self-employed AI Automation Specialist since March 2023, focusing on data analysis and automation solutions. Notable for applying modern software development practices to optimize operations and improve efficiency.

Back-end Software Engineer with over 5 years of experience in designing, building, and optimizing complex systems for multi-tenant SaaS platforms, government portals, and HR management applications. Demonstrated proficiency in C#, .NET Core, ASP.NET, and Entity Framework, with a solid grasp of microservices, RESTful API development, and DDD. Proven ability in leading technical teams and executing agile project delivery while maintaining a strong focus on database optimization and robust security protocols. Holds multiple Azure certifications and an education in Computer Science, underlining a deep technical background.

- HubSpot CRM/CMS Developer with 7+ years of web development and CRM automation experience, and over 3 years of HubSpot-specific experience; - HubSpot CMS & CRM experience, including automation of business processes, pipeline setup and operations, CRM data work, reporting, and optimizations to serve Sales and Marketing teams; - Skilled in building responsive websites and templates with HTML5, CSS3, JavaScript, and HubL, as well as custom module development and integrations to extend HubSpot functionality; - Experience in integrating HubSpot with third-party services, including Mailchimp, Aloware, 8x8, ClickUp, and other systems via native integrations, APIs, Make, and Zapier; - Contributed to CRM analytics, custom reports, lead qualification automation, spam detection, and third-party source-based data enrichment; - Extensive background in technical SEO, on-page optimization, cross-site analytics, and site performance (including page load), including GTM integrations and payload optimizations; - Experience assisting users, mentoring teammates, coordinating across multiple stakeholders, and ensuring stable CRM and CMS operations across multiple departments.

Software Engineer with over 6 years of expertise in high-scale system architecture, proficient in Python (Django, FastAPI, Flask) and front-end technologies (JS/TS, Node.js, React.js). Excelled in DevOps practices with experience in CI/CD automation, AWS infrastructure, and agile methodologies. Played a pivotal role in building a B2B marketplace supporting 10M+ daily users, optimized search performance by 20x, and improved API responsiveness and compliance accuracy in blockchain analytics. Holds a BS in Computer Science.

Software Engineer with over 10 years of experience, specializing in AI and full-stack development, demonstrating a strong foundation in computer science with a B.Sc. from the University of Illinois at Chicago. Expert in Python, C#, JavaScript, and cloud technologies such as AWS, Docker, and Kubernetes. Skilled in machine learning frameworks including TensorFlow and PyTorch, further evidenced by AWS Certified Machine Learning and TensorFlow Developer certifications. Proficient in deploying scalable web systems and integrating AI models into high-throughput environments, with a proven track record of enhancing model accuracy and system performance in production-grade systems.

Seasoned Data Engineer with over 6 years of industry experience, specializing in the development of robust ETL pipelines, real-time streaming solutions, and advanced data architectures. Outstanding proficiency in Python, PySpark, Kafka, AWS services, Databricks, and Airflow. Demonstrated expertise in automating data workflows, optimizing data models for analytics, and managing data migrations with minimized disruption. Adept at deploying scalable cloud-based data warehousing solutions and enforcing high standards of data quality.

Expert Full-stack Developer with advanced capabilities in TypeScript, React/Next.js, and Node.js. Possesses a Bachelor's in Computer Science and has taken specialized courses in Full-stack development and blockchain technologies, reflecting a commitment to continual learning. Proven track record in building and scaling high-load applications, particularly in the healthcare, media, and decentralized tech sectors. Demonstrates strength in creating responsive UIs, implementing complex back-ends, and ensuring high code quality through rigorous testing. Technical skill set includes modern JavaScript frameworks, RESTful and GraphQL APIs, microservices, and cloud services (AWS, GCP), supplemented by practical knowledge of SQL/NoSQL databases, Docker, and CI/CD pipelines. Fluent in essential industry practices and proficient in English and several other languages, making for a versatile asset in international and cross-functional teams.

Software Engineer with 3.5 years of experience in Data Engineering, specializing in ETL and Data Migration solutions. Expert in Azure Data Factory, PySpark, SQL, and Azure Databricks. A proven track record in data pipeline automation, improving data processing workflows, and implementing sound data management practices. Holds a Bachelor of Technology with a strong academic background, and an Azure Data Fundamentals certification from Microsoft. Key skills include technical fluency in data warehousing, cloud services, and software development methodologies like CI/CD. Recognized for reducing compliance errors by 35%, decreasing data retrieval times by 40%, and enhancing reporting capabilities in complex business environments.

- Software Test Engineer with 2 years of experience in an agile Android/iOS application development environment. - Proficient in writing tests for software and implementing testing methodologies (CMM, RUP, MSF). - Experienced in using bug logging systems like Rational ClearQuest and Jira. - Strong command of English, allowing for reading and composing technical texts and reports. - Achieved a 45% reduction in order fulfillment time through effective testing strategies. - Skilled in analyzing and clarifying requirements, planning testing processes, and tracking bugs. - Continuously optimizing the testing process and improving team work processes.

Senior Software engineer with over 5 years of experience specializing in Flutter development for cross-platform mobile apps. Mastery in architecture patterns like MVVM, MVP, BLoC, and Clean Architecture, combined with advanced skills in Dart, Flutter, Firebase, and WebRTC. Demonstrated capability in building complex real-time communication applications and ensuring data security aligns with OWASP guidelines. Adept in state management using BLoC, Provider, and Riverpod, and proficient in development tools like Visual Studio Code, Android Studio, Git, and Flutter Inspector. Significant experience with database technologies like Hive, SQFlite, and Firestore, and contributions to enterprise-level projects ensuring performance optimization and crash-free user experiences.

Senior AI/ML Engineer with over 6 years of experience, specializes in LLM pipelines and generative AI. Demonstrates strength in designing high-performance machine learning algorithms and implementing scalable AI solutions. Proficient in FastAPI, AsyncIO, and Python, with deep knowledge of Pandas, NumPy, and AI/ML technologies like TensorFlow and LangChain. Has successfully deployed complex ETL pipelines and cloud infrastructure, ensuring robust data processing and delivery. Holds advanced certifications and a proven track record in AI project delivery, consistently improving operational efficiencies and business intelligence.

Data Engineer with extensive experience in developing data-driven solutions, leveraging Python, SQL, and ETL/ELT methodologies. Proven track record in optimizing data pipelines and implementing large-scale data warehouses, evidenced by the successful analysis of AirBnB rental prices and product sales strategies. Skilled in Big Data technologies like PySpark, Databricks, and MongoDB, as well as report generation and visualization using Power BI. Holds professional certifications from DataCamp and Microsoft, demonstrating a strong foundation in data fundamentals and Azure services. Played a pivotal role in deploying an LLM powered chatbot at Cisco. Contributed to an increased efficiency and automated processes as a freelance engineer, bringing innovative solutions that enhance operational performance.

- 4 year experience

['Extensive 10-year background in .NET development, specializing in enterprise-level application design and maintenance.', 'Crucial role in developing large-scale systems at an international organization, demonstrating ability to work under demanding conditions.', 'Expertise in full .NET stack: C#, .NET Core, ASP.NET, coupled with front-end technologies Angular/React, and database management using SQL Server.', 'Proven track record of delivering secure, reliable, and high-performance solutions with a focus on clean, maintainable software architecture.', 'Practical experience in Agile, version control with Git, continuous integration & deployment (CI/CD), and integrating complex third-party systems.', 'Skilled in converting complex business requirements into technical solutions, with clear communication and collaboration in distributed team environments.']

- Full Stack Developer with over 6 years of experience in creating and delivering web applications, with Node.js, React, and TypeScript and DevOps skills. - Specialized in engineering high-performance solutions in domains such as E-commerce, Fintech, and Entertainment. Skilled in RESTful and GraphQL APIs, relational databases, - Postgres, MySQL/MariaDB. AWS Certified Developer Associate, holds Master's Degree in Software Engineering - Strong command of Node.js, TypeScript, NestJS, PostgreSQL, and scalable system architecture. Over the years, he has demonstrated exceptional ownership, engineering judgment, and the ability to solve complex backend challenges independently. - Hands-on experience building distributed, reliable, and high-performance systems on AWS, including serverless components, data pipelines, CI/CD automation, and infrastructure-as-code using CDK and Terraform. His strong debugging abilities and deep understanding of relational data modeling make him particularly effective in performance-critical environments. - Direct experience working with AI-native platforms. On the Visiblie.ai project, he integrated ChatGPT, Perplexity, and Google AI Overviews into backend workflows, implemented real-time analytics, and ensured system scalability and observability - experience that closely aligns with your platform’s needs. - AWS Developer Certification further confirms his level of technical maturity.

Full-stack developer with solid experience in React.js, Angular, and Node.js, building high-performance and secure applications across fintech, travel, and real estate domains. Experienced with DBs (Postgres, Mysql), backend services written in Go, integrating AI/LLM platforms via API and integrating Conversational AI tools like Voiceflow. Comfortable working in mixed environments, with end clients, elaborating engineering decisions and shaping solutions to match business needs.

Software engineer with a strong focus on frontend development utilizing modern frameworks such as Angular, React, and Next.js with proficiency in TypeScript. Demonstrates expertise in creating scalable and maintainable web applications with a history of improving codebases adhering to SOLID principles and optimizing for performance to achieve high Lighthouse scores. Established a record in implementing white-label solutions, UI component libraries, CI/CD pipelines with Docker, and comprehensive test coverage with Cypress. Brings experience in technical leadership, including guiding teams and enhancing product accessibility standards. Holds an education in Information Systems and Technologies, communicating fluently in English and Serbian as part of an international collaborative environment.

Software Engineer with a Master's degree in Food Technology and Engineering and extensive full-stack development experience. Expertise spans internal platform construction, workflow automation, data processing optimization, with strong proficiencies in HTML5, CSS3, React, Redux, Node.js, Express.js, and database management systems like MySQL and PostgreSQL. Proven track record in deploying through Azure and implementing CI/CD pipelines, alongside proficiency with cloud & AI tools, Chrome Extension development, and comprehensive understanding of SDLC and modern software engineering principles. Key achievements include database performance enhancements leading to near-instant response times, tripled productivity via automation, and the provision of mentorship with over 3000 code reviews, signifying a well-rounded technical proficiency and a commitment to development best practices.

Backend developer with 1 year of experience specializing in Node.js, TypeScript, and database management using PostgreSQL and MongoDB. Proven expertise in building REST APIs and executing performance optimization. Demonstrated flexibility by learning new technologies, Python (Django) and React, to deliver key projects. Proficient in Git, Redis caching, and Winston logging. Currently pursuing a bachelor's degree in Information Technology, with a solid foundation in software engineering principles and practices. Seeking a backend role to apply strong problem-solving skills and full-stack integration expertise.

Full-stack JavaScript Engineer with a proven track record in building robust web applications end to end. Key expertise includes Node.js, React.js, and Vue.js, with proficiency in both frontend and backend. Adept at API design, MongoDB and PostgreSQL advanced knowledge and TDD practices. Proficient with AWS, containerization, and CI/CD.

Versatile Full Stack Engineer/Lead with over 6 years of experience, specializing in creating robust web platforms and SaaS applications. Expertise in TypeScript, JavaScript, SQL, and a range of backend technologies including NestJS, Express, and TypeORM. Proficient in database management with Postgres, MySQL, MongoDB, and utilizing Redis and similar key-value stores, Familiar with AWS, GCP, and Azure. Skilled in CI/CD pipelines, Docker, caching, and queuing mechanisms, along with comprehensive testing abilities using Jest and Postman.A strong grasp of software architecture, particularly in microservices and event-driven systems, with a background in developing financial systems, IoT, and productivity tools.

Frontend Developer with expertise in building high-performance web applications specializing in React, Next.js, TypeScript, and state management libraries. Served key sectors including fintech, edtech, and e-commerce, with a knack for enhancing existing applications and crafting new feature-rich solutions. Skilled in integrating third-party services and APIs, performing migrations to modern frameworks, and optimizing for both performance and maintainability. Clearly demonstrated abilities in developing complex UI components and handling advanced frontend development tasks, backed by consistent application of coding best practices, a modern tech stack, and a commitment to quality via tools like ESLint and Prettier.

Software engineer with 12 years of full-stack development experience, specializing in scalable application architecture using technologies such as Node.js, React.js, and TypeScript. Expertise in backend engineering, notably in the US-based FinTech sector, with a track record of delivering real-time transaction systems, financial workflows, and secure third-party integrations (Stripe, Plaid, MX). Proficient in creating AI voice agents with modern APIs and cloud services, coupled with frontend development skills to optimize UI performance. Holds a Master's degree in Computer Application, adept at employing Agile methodologies, and excels in building solutions across various domains including FinTech, Healthcare, and E-commerce.

Experienced Senior Machine Learning Engineer with over 8 years in AI research and system architecture, developing and scaling AI systems and machine learning models for use in retail, conversational AI, and writing assistance platforms. Distinguished for leading multidisciplinary teams and aligning AI with business strategies, achieving substantial performance improvements and cost savings. Proficient in AI/ML (e.g., deep learning, reinforcement learning, computer vision), data pipeline design, and MLOps (e.g., Kubernetes, Docker), with a strong background in full-stack engineering (Python, C++, Go, Node.js, React) and cloud platforms (AWS, GCP, Azure). Holds a Master's degree in Artificial Intelligence from New York University, complemented by a Bachelor's in Computer Science, validating comprehensive expertise in algorithmic research, technical publications, and significant contributions to domain-specific AI applications.

Engineer with over 8 years of experience specializing in digital health and fintech platforms, with a robust track record in scaling microservices architecture and AI-driven solutions. Expertise in cloud-native infrastructure and full-stack development, leveraging technologies such as React.js, Java, Go, Python, and AWS. Significant achievements include enhancing PCI-DSS controls for payments processing, improving latency and system resiliency, leading large-scale global deployments, and ensuring compliance with various security standards. Holds a Bachelor's degree in Computer Science from Florida Institute of Technology and is adept at modern engineering practices and delivering business-oriented results in cross-functional settings.