Upstaff Developer Profile Directory

* Software engineer with 6+ years in mobile Android (Kotlin, MVVM and Clean Architecture). * Master's degree in Computer Engineering * Experience with Android SDK, Jetpack components (Room, Dagger/Koin Compose), Android Views, and integrating with RESTful APIs and various hardware (e.g., portable printers, scanners, Bluetooth devices). and REST API integration, Git/GitFlow, and API integrations. * 4 years with ERP systems (internal use: employees, warehouse, workers "in fields") for mobile devices and hardware (e.g., portable printers, scanners, Bluetooth devices). * Led a team of Android developers, mentoring junior engineers, conducting code reviews, and coordinating with cross-functional teams to ensure the timely delivery of high-quality products. * Passionate about delivering user-friendly solutions that solve real-world problems.

At DBB Software, we deliver custom software products tailored to your needs, leveraging our set of pre-built solutions that reduce your development time by up to 50%. As a certified AWS Partner, we excel in migrating any system or workload to the cloud, ensuring your setup is up to industry standards and primed for success.Our services: Web Development Mobile Development DevOps Engineering AI/ML Development Software Integration (CMS/CRM/ERP) AWS integration Dedicated Team Team Extension IT Support & OperationsIndustries: E-commerce Real Estate Social Network HR platforms Logistics HealthCareOur Approach: We use pre-built solutions with ready-made blocks to speed up development, leading to: 50% reduction in development time. Up to 30% faster POC and prototype stages. 50% less planning time.Why DBBS? 10+ years of industry experience 100+ skilled software engineers 5+ years is the average employee tenure. 6+ years of client lifetime We’ve successfully completed over 100 projects for industry leaders such as JLL, WeWork, RedAlpine, Philips, DispatchHealth, and Doctify, helping secure substantial funding for our clients, including $50M for a healthcare startup, $11M for a marketplace, and $5M for a real estate platform.

I am a seasoned blockchain developer with proven experience in building, optimizing, and scaling projects across multiple layers and ecosystems. Beyond development, I also bring strategic connections and marketing expertise to help projects succeed from launch to adoption.

- Over 12 years in the tech industry, my mission is to innovate with cutting-edge technologies, fostering a team-driven environment where diverse perspectives thrive - 6 years of experience with Flutter; - Committed to developing robust products that seamlessly integrate mobile and cloud technologies, aligning with our organization's culture of continuous learning and improvement. - My expertise in mobile development and enterprise systems, underpinned by a solid understanding of business ownership, empowers us to create solutions that resonate with our users' needs. -Over the past 6 months, my role team-lead and Head of R&D has centered on assembling and leading a dynamic team adept in technologies such as Flutter, Golang, Java, Angular, and React. - Dedicated to leveraging cloud services like AWS and Google Cloud Platform, ensuring our products are scalable and reliable.

A well-rounded software engineer with a National Diploma in IT and diverse experience across several tech domains. Engineer possesses expertise in a range of programming languages like Dart (Flutter), Java, C#, and PL/SQL, and is also proficient in data automation tools including Power BI, Tableau, and VBA. They have a proven track record in database administration, test automation, and system integration, demonstrated by their work with enterprise clients and contributions to national innovation projects. Notably, the engineer has developed AI-powered platforms and fintech solutions, showing a commitment to innovation and problem-solving. Their methodologies include Agile and SDLC, ensuring efficient and effective project execution. With certifications in modern frameworks and technologies like Hashgraph and BDD testing, the engineer's technical acumen is well-established.

Android developer with a strong foundation in software engineering, holding a Bachelor's Degree in IT and Software Engineering, and boasting over 4 years of professional experience. Expertise in Java SE, Kotlin, and Android SDK underscored by proficiency in MVVM, MVP, and Clean Architecture, ensuring scalable and maintainable code. Adept in modern Android development tools like Jetpack Compose and Navigation Component, coupled with mastery in Networking & APIs like Retrofit 2 and Stripe API. Demonstrated abilities in asynchronous programming using Kotlinx Coroutines, and commitment to quality through rigorous test case development. Proven track record in contributing to all phases of the SDLC in various projects, from user interface implementation to application deployment for mobile and Android TV platforms.

Software engineer with hands-on experience in Android development, boasting a solid engineering foundation with a Bachelor's degree in Business Informatics. Demonstrates proficiency in multiple architectures, including MVVM and MVP, and technical fluency in Kotlin, Java, and Android Studio. Known for contributing to complex projects using tools like Dagger2, RxJava, and Realm, and adept at optimizing app performance and integrating third-party libraries. Played a key role in the development of applications in sectors such as e-commerce, delivery, and CRM, leveraging sound knowledge in material design guidelines and handling API interactions. Emphasizes a thorough understanding of project management and SDLC, with a strong ability to lead and collaborate within cross-functional teams.

Results-driven Senior Java Backend Developer with 11+ years of experience specialising in Java-based API integration and microservices architecture. Worked in international teams of 2–25 members, both on-site and remotely, with 3 years of proven team leadership. • Expertise: Kubernetes (AKS, AWS, GCP , OpenShift), cloud computing, enterprise integration platforms (EIP), and workflow automation. • Leadership: Successfully led teams, mentored developers, and drove the adoption of best practices in software design, CI/CD, and Agile methodologies (Scrum, Kanban).

Software Engineer with a strong background in full-stack development, having worked with a variety of technologies including ReactJs, NextJs, NestJs, NodeJs, and Go. Exhibits proficiency in both front and backend development, with experience using databases like PostgreSQL and MongoDB. Utilizes Microservices Architecture with Kafka and demonstrates a keen understanding of event-driven patterns for scalable and efficient applications. Proven track record in delivering optimized web solutions, achieving notable performance improvements and containerizing applications with Docker for streamlined deployment. Strong proponent of clean code and best practices in security, particularly in the development of a secure password manager with end-to-end encryption. Evidences a Bachelor’s degree in Management Information Systems (MIS) from Lebanese University, underlying a solid foundation in computer science.

Software engineer with hands-on experience in multiple languages including Python, JavaScript, Java, and proficiency in web development. Deep knowledge of frameworks such as Django, Flask, and frontend technologies like React, Vue.js, and CSS. Notable achievements include developing a highly downloaded plugin for Open Broadcaster Software and an innovative online music platform. Holds a bachelor’s degree in Computer Science from National Open University of Nigeria and a National Diploma in Computer Science and has practical experience with deploying applications on AWS and Heroku. The engineer effectively utilizes version control with Git and engages in agile practices with tools like Jira and Trello. Specializes in API development, cybersecurity, and responsive frontend implementation, and is known for efficiency in remote work environments.

- Full-Stack Engineer with a strong background in software engineering - 8+ years with React, Vue, and Angular - Backend systems with NodeJS, PHP, Laravel, and various database technologies such as MySQL, PostgreSQL, and MongoDB. - Holds a Specialist degree in Software Engineering

Data Scientist/Machine Learning Engineer with over 5.5 years of experience specializing in predictive modeling, analytics, computer vision, and offering a robust background in computer science and software engineering. Technical proficiency in Python and a range of data science tools including Numpy, Pandas, and Machine Learning libraries such as Scikit-learn. Expert in deploying ML models to cloud environments like Azure and AWS. Experience includes implementing custom ML solutions for fraud detection in banking, credit risk analysis in finance, energy consumption forecasting, and telecom subscriber insights. Strong track record in data engineering with Apache Airflow and Spark, and backend development with FastAPI. Practical DevOps and MLOps integration expertise using Docker, Jenkins, and MLflow, and experience with databases like PostgreSQL and Redis. Recognized for enhancing model performance through feature engineering, optimizing hyperparameters, and ensuring model explainability.

- Highly skilled and experienced Software Engineer with a strong background in computer science and automated control systems. - Proficient in a wide range of programming languages and technologies, including Java, Python, Ruby, and Node JS. - Extensive experience in designing and implementing software architectures, with a focus on cloud solutions and DevOps practices. - Strong knowledge of methodologies and frameworks such as TOGAF, Agile, and SCRUM. - Experienced in working with cloud platforms such as Amazon Web Services (AWS), Microsoft Azure, and Google Compute Platform. - Skilled in data analysis, data modeling, and data integration, with expertise in Big Data and IoT solutions. - Demonstrated ability to lead and manage teams, conduct architecture assessments, and provide improvement recommendations.

Data scientist with over 4 years of experience in implementing scalable ML solutions in finance and tech sectors, with a focus on credit risk and behavior prediction models. Expert in Python, PyTorch, SQL, and leveraging cloud technologies (AWS, GCP). Demonstrable achievements in enhancing churn prediction accuracy and user retention rates through advanced analytics. Proficient in setting up continuous integration and deployment pipelines using Docker, Airflow, and GitLab. Holds a Masters in Data Science and IBM Data Scientist certifications, with a strong foundation in computer science from the University of Lagos. The engineer's technical prowess, coupled with their methodical approach to A/B testing, ML pipeline development, NLP, and recommendation systems, makes them a strong candidate for sophisticated data science roles.

Dynamic Senior Blockchain Developer with over 8 years of experience in building and deploying enterprise-grade blockchain applications. Proficient in Solidity and Rust, expertly crafted DeFi protocols managing $75M+ TVL and facilitated $100M+ in cross-chain volume. Proven leadership in guiding engineering teams to deliver high-performance technologies such as a network bridge for Solana-Ethereum interoperability and Cosmos SDK chains. Innovated within the blockchain space by implementing TSS/MPC for secure transactions, designing advanced Layer 2 scaling solutions, developing DEX platforms, and ensuring system robustness through comprehensive DevOps practices. Educated in Computer Science from Sonoma State University, this engineer brings a wealth of knowledge in blockchain frameworks and protocols, programming languages including Solidity, Rust, and Go, as well as cloud infrastructures like AWS/GCP, underpinned by a command of software development methodologies.

Software Analyst Tester with over 3 years in the financial services industry, proficient in end-to-end, functional, regression, and automation testing. Expert in Selenium, TestNG, Jira, and Agile methodologies, demonstrating significant improvements in software quality and QA efficiency. Record of managing 100+ defects and reducing UI errors by 10% through mobile testing innovations. Agile contributor with solid Java skills, instrumental in automating key testing workflows and enhancing testing coverage. Holds a Bachelor's in Computer Science, backed by a suite of certifications in JIRA, Postman API, and Selenium Automation. Recognized for autonomous project leadership and a substantial 30% improvement in QA processes via BDD implementation with Cucumber.

- 4+ years with JavaScript, Node.js, React - Proficiency in integrating third-party services and APIs, creating highly dynamic user interfaces and service architectures. - Bachelor's degree in Software Engineering

Software engineer with proven expertise in designing robust machine learning and data pipeline components. Key experiences include leading the integration of an agentic AI decisioning solution at Braze and crafting data strategies at WE Foundation. Technically proficient in Python, SQL, Spark, and GCP, with strong foundations in software engineering principles for scalability and maintainability. Demonstrated leadership in advancing team culture, significantly reducing model downtimes at SOK. Credited with innovating AI-driven scheduling solutions at Quinyx, contributing over €350K in annual recurring revenue. Currently finalizing a Master's degree in Business Analytics with hands-on application of Business Intelligence, analytics, and data modeling, poised to deliver high-impact results in technology-driven roles.

Highly skilled MLOps Engineer with extensive experience in building, deploying, and scaling machine learning models in production environments. Proficient with a range of cloud platforms (AWS, Azure, GCP) and containerization tools (Docker, Kubernetes), adept at implementing CI/CD pipelines (Jenkins, GitHub Actions) for reduced deployment time by 40%, and well-versed in MLOps/DevOps integration for efficient ML model lifecycle management. Holds a strong foundation in computer science with an M.Sc. degree and multiple certifications including AWS Machine Learning Specialty. Proven track record with project achievements like developing an ETL pipeline for real-time analytics and achieving a 20% reduction in transaction fraud through a real-time fraud detection system.

Software engineer with over 20 years of professional experience, adept in backend development, database programming, and application deployment. Graduated with a Bachelor's Degree in Computer Science from the University of Illinois at Chicago, demonstrating a robust educational foundation in the field. Exhibits proficiency in a multitude of technologies including C#, ASP.NET, Microsoft SQL Server, Oracle PL/SQL, and modern development tools like Visual Studio. Specializes in financial and accounting software, having developed key applications for revenue management and cloud-based accounting platforms, aligning with industry practices such as SDLC and Agile methodologies. Holds a track record in enhancing legacy systems and integrating APIs with a focus on improving application efficiency and user experience.

Cloud-focused Software Engineer with hands-on experience in full-stack app development, cloud infrastructure, and AI, leveraging a strong foundation in computer systems engineering from Midlands State University. Expertise lies in designing scalable, secure cloud solutions and employing automation in DevOps pipelines, manifested through project work including the development of a Security & Safety Solutions Web App and an AI Customer Feedback Classifier on AWS. Technologically proficient with AWS, Docker, Kubernetes, Terraform, among others, coupled with a background in multiple programming languages like Python, JavaScript, and Java, which was applied in intern role at Fredca Security. Holds AWS Certified Cloud Practitioner and other relevant certifications, underscoring technical proficiency and dedication to cloud services excellence.

Software engineer with 10+ years of experience in UI development and a strong proficiency in web technologies including HTML5, CSS3, JavaScript, and modern JS frameworks such as Angular and React.js. Proven track record of leading technical teams and managing end-to-end development cycles using Agile methodologies. Skilled in tackling complex problems with microservice APIs, Spring Boot, and cloud integration with AWS. Recognized for enhancing product user experience and system architecture through rigorous debugging and testing practices. Holds a B.Tech in Computer Science and multiple Coursera certifications. Advanced knowledge of dev ops tools and version control systems, excelling in fast-paced environments.

Software engineer with over 5 years of experience specializing in full-stack development, with a track record of improving performance metrics in social and AI products. Expertise in front-end technologies, including React, Next.js, and TailwindCSS, complemented by back-end proficiency in Node.js, Express, and GraphQL. Demonstrated success in building robust applications and APIs, optimizing payment processing for high-transaction platforms, real-time systems, and database management. Past projects have led to tangible improvements such as a 45% increase in job completion rates and significant enhancements in system reliability across distributed architectures.

- Senior Mobile Engineer with 17+ years of experience, focusing on cross-platform mobile application development and SDKs. - Expertise in various mobile frameworks (Capacitor, React, React Native, Ionic, Flutter) and native (Swift, Objective-C, Kotlin, Java). - Proficient in CI/CD practices (Fastlane, GitHub Actions, Jenkins), automated deployments, push & messaging tech (APNS, FCM, Courier). - Strong background in backend and API development, including REST, GraphQL, serverless architectures, along with performance optimization. - Demonstrated ability in fostering agile methodologies and working with multi-timezone teams to drive project success. - Holds a BSc in Computer Software Engineering from Sofia University, reflecting a strong technical foundation.

Dynatrace-Certified Expert – Application Performance Monitoring & ConsultationProfessional Certified consultant with over 6 years of high-impact APM experience, supporting financial institutions, telecom companies, and large enterprises. My qualifications and recent client successes make me an ideal fit for your long-term consultation project.Key Offerings: • Certified in Dynatrace Professional modules (certification PDF attached). • Expert in setup and deployment of Dynatrace (SaaS/Managed) across enterprise sites. • Advanced dashboard customization, alert optimization, and integration with ITSM tools (ServiceNow, Jira). • Deep knowledge of Real User Monitoring (RUM), Synthetic Monitoring, RCA, logs/data migration, and FinOps. • Extensive hands-on work with Prometheus, Grafana, OpenTelemetry, Kubernetes, and AWS. • Strong SRE background: expert in chaos engineering, resilience testing, auto-remediation.

Experienced DevOps Engineer with a proven track record in scalable infrastructure design, developer tooling, CI/CD, and cloud cost optimization. 10+ years cross-functional leadership in high performance environments. Expert in Python, cloud technologies (GCP, AWS, OCI), and infrastructure as code (Terraform, Ansible). Certified Kubernetes Administrator with strong skills in orchestration and observability systems. Reduced operational expenses significantly through strategic cloud migrations and efficient infrastructure management.

Seasoned Full Stack Laravel Developer with a Bachelor of Science in Computer Science and over a decade of experience in crafting scalable web applications and SaaS solutions. Proven track record in utilizing Laravel 5–11, PHP 8.3, and modern front-end technologies such as Vue.js and React, combined with a strong foundation in databases and DevOps. Demonstrates extensive knowledge of RESTful and GraphQL API integration, microservices architectures, and cloud-based deployment, which includes expertise in AWS services, Docker, and Kubernetes. Instrumental in achieving significant performance gains by optimizing code and queries, exemplifying technical prowess in leading development teams, promoting best practices in software engineering, and delivering projects with high business impact.

Software Engineer with 7+ years of backend development experience, specializing in Spring Boot, REST APIs, and microservices, with a proven track record in the academic, enterprise, and telecom domains. Notable for scaling a microservice architecture to support 1.8M users, leading to $5M ARR, and demonstrating technical leadership through significant code base contributions and feature developments. Proficient in Java 17+, SQL, Git, Docker, Jenkins, Gradle, Grafana, Spring Boot, Redis, Websockets, AWS, Kubernetes, PostgreSQL, MySQL, and Oracle DB, the Engineer has a strong foundation in computer science with a BTech degree from VIT University. Recognized for exceptional problem-solving and code quality improvements, the Engineer also shared expertise through mentoring and streamlined cross-functional team collaboration.

Full-stack .NET developer with extensive experience in building scalable server solutions and responsive front-end designs. Strong foundation in C# and ASP.NET Core development, supplemented by proficiency in Entity Framework Core and Dapper for optimal data access. Versatile with front-end development using React and TypeScript, ensuring high interoperability within complex CRM and e-commerce ecosystems. Proven ability to optimize system performance under high loads, integrate various APIs, and maintain CI/CD workflows. Supported by a Master's degree in Informational Technologies and a keen understanding of software engineering methodologies, bringing a valuable combination of technical acumen and practical experience to any team.

Engineer with extensive expertise in full-stack .NET development, proficient in implementing complex server-side APIs, CRM, and e-commerce platforms. Advanced knowledge in a range of technologies including ASP.NET Core, React, Redux, Akka.NET, SignalR, EF Core, Dapper, SQL Server, AWS, and Azure. Demonstrated success in migrating legacy systems to .NET 6.0, optimizing data access, and ensuring high system reliability. Holds a Bachelor's degree in Computer Sciences and excels in integrating real-time data analytics with robust, scalable database designs. Backed with a strong foundation in software engineering practices and principles, the engineer is distinguished by their ability to deliver high-quality, maintainable, and performance-focused business solutions, having a tangible impact on operational efficiency and user engagement.

With over 9 years of experience, this Senior Full-Stack .NET Developer offers a robust technical portfolio with proficiency in C#, ASP.NET Core, Entity Framework Core, and a variety of frontend technologies including ReactJS and AngularJS. This professional has a track record of delivering scalable, fault-tolerant enterprise solutions, demonstrating extensive expertise in microservices architecture, cloud services (Azure, AWS), and DevOps practices (CI/CD pipelines). Their education includes a Master's degree in Informational Technologies of Design from Khmelnytskyi National University, reinforcing a strong foundation in computer science principles. An accomplished engineer with tangible contributions to FinTech, EdTech, and eCommerce - they have played a pivotal role in building CRM platforms, optimizing data management, and implementing advanced features that improve operational efficiency and user experience.

Software engineer with a strong focus on AI integration and full-stack web solutions. A proven track record in building AI-powered tools and automating core processes, coupled with expertise in cross-platform development and containerization. Extensive experience with Python, Docker/Nginx, and deploying reliable APIs. Actively pursuing a Bachelor's in Computer Science and excelling in hands-on roles such as Software Research Engineer. Achievements include reducing log review time by 70% and improving customer agents' response rate from 45% to 85%. Adept in languages like C/C++, JavaScript/TypeScript, and possesses advanced skills in frameworks like Django and ReactJS.