Upstaff Developer Profile Directory

Software Developer | Backend & Web3 Engineer | Golang, TypeScript, PythonResults-driven software developer with 3+ years of experience in building scalable backend systems, financial infrastructure, and Web3 solutions. Proficient in Golang, Python, TypeScript, C++, and cloud-native technologies (AWS, Kubernetes, Docker).🔹 Currently at Syndr, designing high-performance exchange servers, optimizing data pipelines, and developing Web3 SDKs. 🔹 Previously at Epifi, led UPI-based financial workflows and transaction processing using Temporal. 🔹 Ex-Smarsh, where I improved database architecture and query performance for SaaS compliance solutions.Passionate about distributed systems, blockchain, and high-performance computing. Active contributor to open-source and tech communities.📌 GitHub: AbhinitKumarRai | LinkedIn: Abhinit Rai

Software engineer with 3 years of front-end development experience, adept in JavaScript, TypeScript, React, Redux, Next.js, Angular, and strong back-end knowledge including Node.js, Express.js, PostgreSQL, and MongoDB. Demonstrated ability in working with modern dev tools like Docker, nginx, and Git. Key projects include development of Automated Information Systems (AIS) and upgrading safety certification systems. Proven expertise in integrating digital signature technologies like Rutoken Plugin and JaCarta PKI. Holds a Bachelor's in Applied Informatics and pursuing a Master's in Green Industrial Engineering, indicative of a solid technical education. Excels in Agile methodologies and proficient with several UI libraries/frameworks.

With a focus on operations and HubSpot expertise, the featured engineer brings a strategic mindset to project management. Possessing strong experience in utilizing CRM systems, especially HubSpot, they have a proven track record of enhancing operational efficiency. Skilled in various sales and financial software such as Stripe and PandaDoc, and adept at website development through WordPress using Elementor, their technical prowess spans across customer service platforms to marketing automation. Additionally, their proficiency covers a robust range of HubSpot certifications, demonstrating a commitment to staying at the forefront of marketing technology and operations optimization.

With a Ph.D. in Computer Science and a comprehensive background in Electrical and Electronics Engineering, this candidate has over two decades of adeptness in AI, cloud computing, and big data analytics. The engineer is skilled in strategic project management, with a strong focus on the application of machine learning pipelines and cloud infrastructure development. Technical proficiencies include expertise in NLP, data analysis, IoT, and using advanced cloud platforms like AWS, Google Cloud, and Microsoft Azure. The candidate's teaching experience and substantial contributions to industry publications underscore a balanced blend of practical and theoretical knowledge. The engineer's prior roles demonstrate significant leadership in shaping AI strategies and guiding data-driven innovations.

- Seasoned in using a variety of PPC and offline tools: paid traffic, social media, CPA-marketing, email- push- in-app communication, content marketing, PR and event, SMMand SERM - Led Data-Driven Marketing Efforts, utilizing analytics to guide strategic decisions, monitor KPIs, and achieve business objectives. BI analytical tools such as MS PowerBI. - Managed company content plan for variety of social media and other content activities, content writers and in-house designers - Digital Marketing Technologies, proficient in using Google Ads, LinkedIn, SEO, and various analytics tools including Google Analytics, Firebase Analytics, and Kissmetrics, MS Excel. - Managed Advanced Marketing Tools such as Affiliate Marketing platforms, SMM tools, SERM, Mailchimp, Ahrefs, Similarweb, and SpyFu to drive marketing strategy and operations. - Extensive experience in international projects as CMO, worked on user acquisition from Asia, LATAM and Europe for gambling products. - Affiliate partnership (retention and new affiliate acquisitions) - Handled SEO Optimization and Website Development across multiple roles, enhancing online presence and optimizing user engagement and conversion rates.

- Senior Software Engineer with 8+ years of experience; - Expertise in Java, Kotlin, Spring Boot, Hibernate, and Micronaut for cloud-based microservices; - Strong background in AWS, GCP, Kubernetes, and event-driven architecture; - Led monolithic to microservices migrations and real-time data processing solutions; - Skilled in database management with PostgreSQL, MySQL, Oracle, and TimescaleDB; - Experience with Kafka, RabbitMQ, and Elasticsearch for scalable data processing; - Ability to design financial and banking software solutions; - Hands-on experience with CI/CD pipelines, Docker, Helm, and GitLab CI.

Software Engineer with 4 years of experience specializing in high-volume business code development and project management. Expertise in SEO integration, digital marketing, and Web3 community management with a strong background in using project management platforms and community moderation tools. Holds certifications in Community Management, Project Management, Digital Marketing, and Web3 management. Recognized for leading Web3 community initiatives, improving follower retention by 20% with analytical protocol enhancements. Technical skills include Project Management (5 years), Unreal Engine, DigitalOcean, and MS SQL Server Management Studio (each 4 years), along with proficiency in iOS Core Graphics and CSP.

Hello, my name is Hashir, and I am a mobile app developer with 5 years of experience in both iOS and Android app development. Over the years, I have honed my skills in developing high-quality mobile applications that are user-friendly, efficient, and visually appealing.As a mobile app developer, I specialize in a wide range of technologies such as React Native, Android Studio, and Swift. My knowledge in these technologies enables me to design and implement custom mobile applications that meet the unique needs of each client.Throughout my career, I have gained valuable experience in all aspects of the mobile app development process, from concept to launch. I have a deep understanding of both the design and development aspects of creating a mobile application, which allows me to provide clients with comprehensive solutions.I am also passionate about staying up-to-date with the latest trends and advancements in mobile app development. This passion drives me to continuously seek out new skills and knowledge, which enables me to develop innovative and efficient solutions that exceed my clients' expectations.In summary, I am a dedicated and skilled mobile app developer with a passion for creating high-quality, user-friendly applications.

- Java Software Engineer with 7+ years of experience in web services and backend development; - Expertise in Java, Spring Boot, Hibernate, and microservices architecture; - Skilled in containerization with Docker and orchestration with Kubernetes; - Experienced in CI/CD, test automation, and performance optimization; - Experienced in high-load systems, multithreading, and asynchronous processing; - Strong background in AWS (Lambda, S3, Scaling, Redshift) and cloud-based solutions; - Experience in database management with PostgreSQL, MySQL, MongoDB, and Cassandra; - Integrated payment systems such as PayPal, Stripe, and Coingate.

- Experienced Golang Engineer – 6+ years in Golang development, working on distributed systems, cloud-native architectures, and microservices. - Cloud & DevOps Expertise – Proficient in AWS, Kubernetes, Docker, CI/CD (GitHub Actions, Terraform, Ansible), and monitoring tools (Datadog, Prometheus). - Data Engineering & Pipelines – Built ETL workflows, API integrations, and real-time data pipelines using Kafka, SQS, and Postgres. - Backend Development in Go & Python – Experience with FastAPI, Flask, GraphQL, REST APIs, and implementing secure authentication (JWT, OAuth). - Leadership & Mentorship – Led backend teams, defined scalable architectures, set up on-call rotations, and mentored engineers. - Full-Stack Collaboration – Worked with ReactJS, NextJS, VueJS, integrating Golang and Python backends for seamless applications. -Fluent English

Senior Web Developer with extensive experience in WordPress, WIX, and e-commerce system development. Proficient in converting designs (Figma) to functional WordPress sites and optimizing websites for SEO and usability. Demonstrated expertise in front-end development, including HTML, CSS, and JavaScript, coupled with a deep understanding of Elementor and WooCommerce. Proven track record in delivering web projects across various industries, with a focus on enhancing user experience and meeting business requirements.

- Extensive experience developing, customizing, and integrating CRM systems across various industries using MS Dynamics 365, Power Apps, and Azure. - Proficient in a wide range of technologies, including .NET, C#, JavaScript, SQL, Entity Framework, Azure Functions, Azure Logic Apps, Angular, React, and various CRM and cloud platforms. - Skilled in deploying and managing Azure infrastructure, including developing Azure Functions and integrating them into cloud-based solutions. - Pending March 2025 Certifications: Power Platform Developer Associate

Expertise in Python, SQL, and ML web applications with a focus on practical applications in fields like AI and computer vision. Proven track record in AI with projects at DeepLogic AI, including creating an ML Web app for classifying blastocyst embryos and implementing LLM for in-house document processing. Further experience includes feature extraction via PySpark at Tata Digital, and exploiting BERT for NLP tasks at Concentrix. Academically grounded with a Master's in CS from Columbia University and a BTech in Math/CS from Delhi University. Holds AWS accreditations, demonstrating proficiency in cloud architectures, EC2, S3, and RDS. Skilled in end-to-end software development, including full-stack abilities shown at Datacultr with Django and PostgreSQL.

QA Engineer with over 6 years of experience in Salesforce platform testing, including Sales Cloud and Service Cloud. Certified Salesforce Administrator with a B.E. in Computer Science, showcasing a solid foundation in technical principles and software development practices. Skilled in automating QA processes, accomplishing a 30% efficiency improvement through test automation frameworks like Selenium and Cucumber. Strong in functional, performance, and regression testing with tools like JMeter and proficiency in defect tracking using JIRA and Bugzilla. Holds a track record of effective collaboration with cross-functional teams to ensure product quality in line with PRDs and user stories.

- 8+ years of experience as a front-end Angular / Ionic developer and 5 years as a Full-stack developer using Node.js and PHP -Vast experience with modern JavaScript frameworks like Angular, Node.js, and Ionic, complemented by back-end expertise in Node.js, deployed on cloud services such as Azure,GCP Firebase, and MongoDB/Atlas/Cosmos - Proven experience architecting solutions from the ground up, including leading development teams, code reviews, essential infrastructure setup and controlling key processes - Focused on efficiency directing collective effort to deliver features quickly while ensuring high code quality. - Skilled in multi-tenant architecture, API integration, database management, and system scalability.

Senior DevOps Engineer with 6+ years of experience designing and implementing scalable, secure infrastructure for data-driven platforms: * Expertise in Azure DevOps, Azure Kubernetes Service (AKS), and Azure KeyVault, delivering robust CI/CD pipelines and efficient cloud-based solutions. * Led full DevOps lifecycle for complex enterprise projects, including microservices architectures, logging/monitoring solutions (Prometheus, Grafana, ELK), and resource optimization across Azure, AWS, and GCP. * Deployed and maintained high-availability infrastructure for AI, analytics, and cross-platform applications, ensuring uptime and operational excellence. * Master’s Degree in System Engineering with deep technical knowledge of Windows, Linux, and MacOS platforms.

- Certified Senior Go Engineer ( 12 years with Go, 19 years in Software Engineering) with experience in software engineer, team lead and software architect roles. - Master’s Degree in Computer Science - Designed and implemented a scalable multi-microservice backend for an enterprise AdTech CRM, integrating 10+ third-party services and streamlining client management operations. - Built and deployed a billing system for a money exchange platform, integrating third-party payment systems and delivering a user-friendly web interface for seamless transactions. - Optimized data processing pipelines by implementing quantiles on streams, enabling real-time analytics and supporting large-scale data operations for scientists and business stakeholders. - Extensive background in data processing and reporting.

- Back-end Software Engineer with 12+ years in the IT industry as a back-end engineer - Excellent knowledge of different databases and a good level of understanding of complex systems with lots of dependencies. - 5+ years of recent commercial experience with Go - Has experience with leading the team of up to 30 engineers, - Experience mentoring on Codementor, StackOverflow, and teaching - Upper-Intermediate English

Software Engineer with a comprehensive Computer Science education and 9 years of experience in Fin-tech, E-Commerce, and Investment domains. Technical proficiencies include Python, JavaScript, TypeScript, and Go, with notable expertise in backend frameworks like Django and Flask, and data engineering tools such as Apache Spark and Airflow. Experienced in cloud environments, particularly Azure and AWS, providing scalable data processing solutions. Strong DevOps skill set with Docker, Kubernetes, and CI/CD implementation ensuring robust deployments. Proven track record in projects that demand seamless backend development, efficient data pipeline construction, and cloud infrastructure automation.

Versatile Software Engineer with 9 years of experience, bringing a strong background in computer science, particularly in backend development, data processing, and cloud services. Specialized in Python and proficient with frameworks like FastAPI, Django, and Flask. Has engineered complex ETL pipelines, optimized databases including PostgreSQL and Redis, and implemented cloud solutions using AWS and Azure. Excelled in DevOps practices with tools such as Docker, Kubernetes, and Terraform. Demonstrated capability in building scalable, secure applications and services, evidenced by successful project delivery in domains such as e-commerce, human resources, and cybersecurity. With hands-on experience in Stripe payment systems and expertise in system integration, this candidate is equipped to tackle challenging roles in the tech industry.

The engineer boasts a robust technical background with 8 years of DevOps expertise, underpinned by a Computer Science and Software Engineering education, and a proficiency in English at B2 level. With a comprehensive mastery of cloud platforms including AWS, Azure, and GCP, the engineer has demonstrated advanced skills in infrastructure automation using Terraform, Ansible, and Kubernetes. Additionally, they hold a suite of certifications that include Azure Fundamentals, Administrator Associate, DevOps Engineer Expert, and Solutions Architect Expert from Microsoft. The engineer's project experience showcases a strong command of CI/CD processes, using tools like Azure DevOps and GitLab CI, and a deep understanding of containerization with Docker. They are also proficient in data engineering tools such as Kafka and experienced in monitoring and logging with solutions like Zabbix and Grafana. This amalgamation of hands-on project roles and technical acumen positions them as an exceptional candidate for complex, multi-cloud DevOps engineering roles.

As a passionate AI developer with a strong command over machine learning, data analytics tools, deep learning, Django, Flask, SQL, data extraction, and web automation, I have gained valuable experience through various roles. I have worked as a data analyst on contracts with an Indian MNC, making significant contributions. Additionally, I played a key role in a ship maintenance-based startup by providing a corrosion segmentation solution. Moreover, I have worked on RAG techniques and implemented personalised chatbot features using LLMs like ChatGPT using LangChain technology. I have successfully provided customers more than a million units of required data by implementing efficient data extraction methods.

- Software Engineer with over 7+ years of experience designing and delivering robust software solutions across diverse industries, including manufacturing automation, robotics, audio processing, UAV control, and communication systems. - Proficient in C++ (C++11, C++17, C++20) with a proven track record in developing both backend and frontend systems using React Native, Qt (QML, Qt Widgets), and PHP-CPP. - Skilled in creating high-performance multithreaded servers, implementing WebSocket protocols, and integrating cutting-edge technologies such as io_uring and advanced signal processing algorithms. - Demonstrated expertise in deploying solutions for real-time audio processing, cloud-based parking systems, and 3D modeling of industrial components. - Experienced in robotics and sensor integrations (Riftek, Nanotec, Rozum, Basler SDKs) for automating precision tasks in manufacturing. - Adept in database management (MySQL), DevOps (Docker, Bazel, Git), and cross-platform development on Linux, Windows, Android, and iOS.

Software engineer with over 6 years of experience specializing in C++ development, software architecture, and CI/CD practices. Strong fintech, databases, cybersecurity, and embedded systems domain expertise. Proficient in modern C++ standards (C++11/17), CMake, and GUI development using Qt and Boost. Adept at database management and optimization with MySQL, PostgreSQL, Oracle, and SQLite. Extensive use of version control systems such as Git, SVN, including code quality tools like Doctest and SonarQube. Demonstrated abilities in leading project teams, mentoring, and aligning software solutions with business requirements. Proven track record of improving system performance and reliability across multiple successful projects.

Accomplished Software Engineer with 5.2 years of experience specializing in the hospitality industry, holding a MCA degree with a high aggregate. Expert in Microsoft technologies, particularly in C#.NET, ASP.NET MVC, and Core, with a track record of implementing successful hotel reservation and marketplace systems. Proficient in Agile and Scrum methodologies, with an aptitude for problem-solving and a commitment to delivering efficient, high-quality software solutions. Key achievements include a 30% reduction in transaction failures through secure payment integrations and a 50% increase in online bookings via a user-friendly customer portal. Skilled in modern development practices and bringing strong expertise in cloud computing with Azure, demonstrated through leadership roles in several high-profile projects at Cyber Infrastructure. Recognized for technical skills in full-stack development, SQL databases, and internet technologies, ensuring that applications meet the complex demands of today’s digital landscape.

A highly skilled Software Developer with extensive expertise in Python, backed by 7 years of diverse experience in web development, server engineering, and automation. Renowned for building scalable microservices and upgrading applications to Python 3.12. Demonstrates a solid grasp of Django, Flask, Celery, Redis, Docker, MySQL, Linux, and modern frontend technologies like React. Proven ability as a lead developer, creating robust SEO tools and web applications, with a penchant for automating processes and integrating various APIs. Holds a strong background in both application development and teaching, blending technical acumen with a solid understanding of the software development lifecycle.

- 9+ years commercial projects in IT. Experience with the full lifecycle of designing, developing, installing, configuring, and maintaining applications on SharePoint 2010/2013/2016/2019/ Online - Power Platform: Power Apps, Power Automate, Power BI, Dataverse, MS Visual Studio 2015/2017/2019, VS Code - HTML (HTML5), JavaScript, CSS (CSS3), CSS Frameworks (Bootstrap 3/4, Semantic UI, Office UI Fabric, Metro UI) - Experience with JQuery, DataTables, Vue.js, ReactJS, SPFx, Project Server 2016, PowerShell, PnP, Azure DevOps, MS Project, MS Teams, Jira, Git, Slack

- Full-Stack Engineer with over 8 years of experience specializing in Web2 and Web3 technologies, blockchain development, and Full-Stack architecture. - Has 4 years of experience working with web3, implementing blockchain solutions using Ethereum, Solana, and smart contracts. - Proven expertise in tokenization, NFT integration, and cryptocurrency transactions for real estate, voluntary donation, and other industries. - Expertise in Node JS, Nest JS, and RESTful APIs, with proficiency in React JS for frontend development. - Strong experience with databases like PostgreSQL, Redis, MongoDB, and DynamoDB. - Well-versed in cloud services, including AWS and GCP, and experienced in container orchestration with Kubernetes. - Proficient in CI/CD using Jenkins, GitHub Actions, Bitbucket Pipelines, and Terraform. - Familiar with Nginx for web server management and ensuring smooth application deployments.

- Engineer who has 6+ years of experience with many programming languages, frameworks, and platforms; - 2+ years experience with developing smart contracts on Rust; - Solid skills with Solidity; - Working experience in building an NFT marketplace platform on Polygon and Binance Smart Chain using ERC-721 and ERC-1155; - Experience with ether.js, web3.js, and JS/TS frameworks; - Familiar with blockchain Ethereum, Binance, Tron, Solana, Polkadot, Tezos, Polygon, Huobi ECO chain, etc; - Deep knowledge in implemented Metamask, Torus, and other wallets to increase user experiences with the web apps; - Advanced English; - Available ASAP.

- 3 years of professional experience using front-end and back-end technologies - Front-end: React, Redux, React query, Context API, React Hooks, HTML, CSS(SCSS), BEM, MaterialUI, AntDesign, Firebase, Angular 7+, RxJs - Back-end: NodeJS (Express, NestJS), REST API, Docker - Knowledge of PostgreSQL, MongoDB, MySQL databases - Intermediate English - Available ASAP

International marketing manager with strong communication skills in 4 languages and project management experience, certified by Hubspot.

A seasoned Software Engineer with over 7 years of .NET technology expertise and a significant focus on RPA implementation using tools like UiPath, Power Automate, and Blue Prism, particularly in the banking and finance sector. Skillful in creating and managing Power Apps and Power Pages, with proficiency in C#, VB.NET, .NET Core, and other modern programming languages and frameworks. Demonstrated experience in enhancing operational efficiency through automation, achieving milestones like reducing runtime by 70% and preventing losses over $2 million in the healthcare sector. A mentor with a knack for developing reusable components and a track record of fostering knowledge sharing in automation technologies. Holds an MSc in Data Science, strengthening analytical and technical foundations alongside an educational background in mechanical engineering.