Upstaff Developer Profile Directory

Software engineer with over 5 years of development experience, specializing in blockchain platforms, DeFi, and DApps. Demonstrates expertise in Ethereum ecosystem (DEX/CEX integrations, GameFi, lending, RWA, wallets, ZK systems), and diverse blockchain technologies such as Bitcoin, Stellar, and StarkNet. Key competences include Solidity development, smart contracts audit, crosschain NFT systems, and proposing standards like ERC-8006. Possesses advanced knowledge in backend engineering utilizing technologies like Node.js, Python, and .NET, with a strong foundation in computer science from Kharkiv National University of Radioelectronics. Skilled in Full SDLC, devises encryption solutions (zk-proof, homomorphic), and excels in developing auxiliary tooling and technical documentation. Active in OSS, contributing to security (Slither, Echidna, Manticore, Mythril) and infrastructure projects (AWS, DigitalOcean, Heroku).

I help enterprise teams automate and simplify Oracle data workflows, integrations, and large-scale backend systems. Experienced across healthcare, telecom, logistics, retail, manufacturing, consulting and public sector, I solve database reliability and performance problems for mission-critical applications. Available for remote freelance/contract projects, specializing in PL/SQL, Python, Oracle EBS R12, ETL pipeline automation, and cross-time zone support.

- 10+ years with Salesforce (mostly B2C Commerce), I have successfully built topnotch back-end and front-end for various e-commerce websites, - improved Salesforce solutions for clients, and created many integrations in small and large teams. I have experience as a Salesforce developer with Service, Sales, Financial Services, Communications, and Marketing Clouds. - Past projects include developing solution approaches for diverse tasks such as integrating all import/export jobs with the client's SFTP servers, integrating third-party services using a services framework, LINK integrations, and building custom integration cartridges for payment processors like Adyen and Rakuten.

- Experienced Senior AX Developer and Technical Solution Architect with extensive expertise over 21 years in implementing and customizing ERP solutions, particularly Microsoft Dynamics AX (AXapta); - From 2000 to 2022, participated in more than 150 projects doing estimations, implementation, testing, and installation of change requests; - Proficient in technologies such as Microsoft Dynamics AX 2009, AX 2012, AX 2012 R2, AX 2012 FP, AX 2012 R2 CU, AX 2012 R3, and D365O; - Strong background in various industries, including retail, wholesale, sports media and marketing, distributorship, cosmetics production, and distribution; - Commercial experience includes successfully leading and participating in multiple ERP implementation projects, including deploying ERP solution D365O (Dynamics 365 Finance and Operations) and upgrades to AX2012 R2 and D365O; - Has been involved in technical analysis, implementation of changes, testing, data migration, technological concept development, and providing ongoing support; - Fluent in English; - Basic A2 German. - Available from 05.06.2023

Software engineer with extensive experience in Python development, application support, and financial systems. Strong expertise in technologies such as Django, Flask, Oracle, SQL, and data visualization through Power BI. Proven background in Python script automation and API creation for banking applications, improving operational efficiency by 30%. Skilled in cross-functional team collaboration, version control with Git, and maintaining critical 24/7 financial systems. Adept in machine learning and data science methodologies, poised to contribute to technology advancement in a reputed organization.

- A Software Engineer with over 12 years of development experience in the IT industry - Specialize in the .NET platform and C# programming language for both client and server-side development; - Expertise spans across US Healthcare, EdTech, Defense and Space Manufacturing, Customer Relationship Management, Retail, Digital Media and Document Management industries. - 5+ years of experience with MS Dynamics 365 - Solid experience working with cross-application integrations. - Advanced English

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.

- iOS software developer with 10+ years of experience. Participated in developing an architecting different iOS applications: from iOS AVFoundation players to iPad book readers, from hospitality and Digital Key experience to VPN and security (privacy) applications. - Comprehensive knowledge of core iOS frameworks, excellent hands-on experience in CI/CD pipelines setup, Unit testing and UI prototyping. I have complete knowledge of Apple development guidelines and put 20+ applications to the AppStore. - Strong team player: Always set the product’s needs and team’s goal at the topmost priority. Occupied team leader positions and have lead my teams to growth, and have proven leadership experience. - The scope of professional interests is in between cutting edge technologies: from modern REST API stack technologies to networking, from big-data and machine learning to computer vision applications. - Work expectations would perfectly match with iOS application development and architecting; taking a part in prototyping of UI/UX with technical expertise; leading the team and perform technical expertise of any level. The main goal is to develop robust, advanced and feature-full applications for the world-wide auditory. - Upper-Intermediate English

- 12+ years of experience. - Present talks, explain and give classes about web3 concepts and integrations for blockchain, NFTs, cryptocurrencies, and metaverses. - Bridged the gap between Product/Product Marketing providing data for ‘wants vs. needs’ of dev community for product development. - Executed production strategies and campaigns to more than 500 million users worldwide for all content available on Google Play store. - Led the product development for a multi-million dollar mobile Disney game planning sprints and restructuring the entire project. - Directed product development at five tech and game startup companies simultaneously while getting a Master of Science degree. - Led development of ground-breaking web projects at my own startup using custom-built systems and advanced API integrations. - Upper-intermediate English. - Available ASAP.

- 5 years of experience in strong technical solutions to solve business problems - Building Architecture for Salesforce Sales Cloud and Salesforce Community Implementation. Salesforce DevOps - Demonstrated experience in implementing Innovative and strategic CRM solutions for Health Care, High-Tech, and Manufacturing Industries - Salesforce Certified Developer Platform 1 & Salesforce Certified Platform App Builder - Available ASAP

- Extensive experience in analyzing client needs, designing tailored CRM solutions, and executing system implementations, including migrations, configurations, and integrations with third-party tools. - Proven ability to streamline operational processes, automate workflows, and improve data management, enhancing productivity and reducing errors. - Deep knowledge of HubSpot CRM, including setup, custom objects, workflows, and marketing automation, enabling businesses to optimize sales, marketing, and customer service. - Skilled in developing and executing inbound marketing strategies, leveraging tools like Apollo, Zapier, and Aircall to enhance lead generation and customer engagement. - Proficient in conducting workshops, delivering end-user training, and ensuring smooth adoption of new tools and processes, fostering client satisfaction and retention. - Strong expertise in performing data quality audits, managing data migrations, and building analytics frameworks to provide actionable insights for decision-making.

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.

Microsoft Certified D365 CRM Techno-Functional Consultant Strong knowledge of the System Development Life Cycle (SDLC) model Proficient in developing web-based applications using C#.Net, Asp.Net, Web services, and MS-SQL Server Experience in project management using Jira Strong interpersonal and communication skills, with the ability to lead a team Proficient in Dynamics 365 CRM, ASP.NET, WPF, Silverlight, C#, MVC, .NET Core, HTML/XHTML, Ajax, jQuery, Angular JS, JavaScript, CSS, Power BI, RDLC, Telerik Reporting, XAML, Microsoft Expression Blend, Web API, WCF, REST, Web Services, SQL Server, LINQ, Entity Framework, SQL LITE, Data migration, Hybrid Mobile App using Telerik App builder, UML, Coding Standards, NopCommerce, DocuSign, and Scrum methodologies.

- Technical Architect with 11+ years of extensive expertise across RPA, AI, cloud computing, and data-driven solutions. - Extensive experience designing end-to-end systems focusing on modularity, scalability, and integration with existing enterprise technologies. - Advanced proficiency in UiPath, Power Platform, and low-code/no-code tools such as Zapier, Kubeark (iPaaS), Flowise, and Druid.ai, enabling the delivery of streamlined automation solutions. - Skilled in OpenAI, Azure AI, Llama, and other generative AI platforms to design intelligent systems such as chatbots, predictive analytics, and automated decision-making tools. - Comprehensive experience with Azure, AWS, and Google Cloud Platform, developing and managing robust, scalable infrastructure solutions. Expertise in DevOps tools such as Azure DevOps, GitHub, and Linux for CI/CD, infrastructure as code, and cloud deployment. - Proficient in SQL, Python, Databricks, Power BI, and Tableau, building data pipelines, ETL processes, and interactive dashboards for actionable insights. - Strong programming background in Java, Angular, Python, and SQL, with experience in Spring and RESTful API development.

An adept RPA Developer with over 7.5 years in IT, specializing in end-to-end RPA solutions using UiPath and MS Power Automate. Experience includes over 50 successful projects across Banking, Healthcare, and more, with proficiency in integrating applications such as ServiceNow and SharePoint. Strong grasp of SDLC and project management, certified in UiPath Advanced RPA (UIP00197988) and Azure Fundamentals. Led teams in design, testing, deployment, and optimization of automation solutions, demonstrating a commitment to efficiency, compliance, and continuous improvement.

- 3+ years of experience in the IT industry - Core technology stack is AWS, Node.js, Python - Actively working with serverless architecture AWS (Lambda, Cognito, VPC, Security Group, EC2, RDS, API Gateway, CloudFormation, SES, SNS, S3, Amazon Timestream, IAM, LightSail) - Intermediate English - Available ASAP

- 2+ years of experience with Python as a Data Engineer and Deep/Machine Learning Intern - Experience with Data Vault modeling and AWS cloud services (S3, Lambda, and Batch) - Cloud Services: Sagemaker, Google BigQuery, Google Data Studio, MS Azure Databricks, IBM Spectrum LSF, Slurm - Data Science Frameworks: PyTorch, TensorFlow, PySpark, NumPy, SciPy, scikit-learn, Pandas, Matplotlib, NLTK, OpenCV - Proficient in SQL, Python, Linux, Git, and Bash scripting. - Had experience leading a BI development team and served as a Scrum Master. - Native English - Native German

RevOps professional with over 5 years' experience specializing in streamlining the synergy between sales, marketing, and service departments. Proven proficiency in a suite of CRM and analytic tools including HubSpot, Zoho, and Google Analytics, with a strong track record in lead optimization and revenue growth. Demonstrated ability to implement automation and ABM strategies, enhancing lead conversion and customer engagement through effective workflow design. Seasoned in multi-platform campaign management and SEO, with a focus on data-driven decision making and key performance metrics analysis.

- Extensive experience in implementing and customizing HubSpot CRM to align with business goals, including workflows, pipelines, automation, and reporting tools, ensuring seamless integration with other platforms (e.g., Google Analytics, Google Ads). - Skilled in setting up custom objects, fields, and dashboards to optimize client data organization and operational efficiency. Proficient in creating automated workflows to streamline marketing, sales, and customer service processes. - Successfully conducted CRM audits, data migration projects, and integrations with third-party tools (e.g., Salesforce, Aircall, and SEMrush), ensuring accuracy and efficiency in client operations. - Delivered tailored HubSpot training sessions to teams, ensuring high adoption rates and empowering clients to leverage the platform for marketing and sales success fully. - Expertise in designing and executing inbound marketing campaigns leveraging HubSpot tools, including CTAs, landing pages, and email marketing workflows, to attract, nurture, and convert leads. - Hands-on experience managing websites, implementing content strategies, and optimizing for search engines using HubSpot CMS, WordPress, and Joomla. - Designed and executed multichannel marketing campaigns combining HubSpot, email marketing, social media, and PPC to achieve business objectives. - Leveraged HubSpot’s analytics and reporting tools to monitor campaign performance, generate actionable insights, and improve ROI. - Certifications: HubSpot Sales Software, HubSpot Service Hub, Email Marketing, Contextual Marketing, Inbound Marketing, Frictionless Sales, SEO Certified, Google Analytics.

Senior Software Engineer with over a decade of expertise in designing, developing, and managing software solutions. Specializes in PHP, .NET, Python, Java, alongside advanced knowledge in AWS, Terraform, and CI/CD tools. Proven record in building scalable payment systems, e-commerce platforms, and cloud applications. Demonstrates strong leadership in driving technology strategy and fostering innovative solutions with effective use of DevOps practices to enhance deployment efficiency. Holds a substantial education in computer science complemented by professional certifications in DevOps and Full-stack Development. Experienced in API development, system security, and database management with notable project accomplishments in payment integration and systems automation.

With over 15 years of intense experience in Linux/System/Network/DevOps Administration and Engineering, the candidate showcases an exceptional grasp of technologies like Kubernetes, HELM, Rook Ceph, and HashiCorp Vault/Consul. Devoted to continuous integration and deployment, they adeptly handle Jenkins, TeamCity, and Gitlab-CI, and demonstrate proficiency in network protocols and security. Their cloud knowledge extends through AWS, Digital Ocean, and Google Cloud Platform. Key languages include Python and Bash, emphasizing their fluency in Python for web automation, data scraping, and back-end development. They have contributed significantly to the success of projects within the MarTech/AdTech, government, and retail industries, sharpening their skills in automation, system monitoring, and infrastructure management.

Software engineer with over 4 years of experience in full-stack development, specializing in PHP, Python, C#, .NET, Golang, JavaScript, and TypeScript. Holds a Master’s degree in Business Computing, Software Engineering, and AI, with strong expertise in frameworks such as Symfony, Laravel, Django, React, and Vue.js. Skilled in cloud infrastructure deployment (AWS, OVH, Docker, Kubernetes), API design (REST, OpenAPI, GraphQL), and performance optimization using Elasticsearch and Redis. Proficient in software architecture principles including SOLID, TDD, and design patterns, with hands-on experience in SaaS, ERP, CRM, IoT, and mobile applications. Demonstrated ability in business process automation and long-term project maintenance across diverse domains.

- 9+ years of experience in IT; - Experience working with Blockchain products; - Deep knowledge and skills in development of fintech products (CeFi/DeFi); - Work experience with Development and work on UI / UX design, and web programming (HTML, CSS); - Familiar with logic controller and CNC machine programming; - Experience in project management and sales - Good skills in organizing the work process in a team using Agile methodology; - Good understanding and vision of product development and its design solution; - Upper-Intermediate English; - Available ASAP.

An engineer with 20 years of experience in leadership roles across marketing, project management, and business development. Although not a traditional software engineer, they possess strong managerial skills overseeing technical teams, including web developers and SMM specialists, which could transfer effectively to tech-focused projects. Extensive experience in developing marketing strategies and conducting research, paired with a proven track record in building strategic partnerships, can contribute uniquely to a software engineering environment. Education background and linguistic proficiency were not aligned with software engineering, therefore omitted. Specific technical skills in software development were not provided, so could not be highlighted.

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

- 6 years of experience in developing web applications using cutting-edge technologies - Obtained a lot of experience in AngularJs, Angular2+, Microfrontend, Microservices, Java, Spring, JS/TS, HTML, CSS, and other related technologies - Experience in leading teams of 5 more people - Main subject areas include healthcare, government projects, insurance, etc. - Upper-Intermediate English - Available ASAP

Proven Full-Stack Engineer with over 7 years of experience in building robust, secure, and scalable systems. Has a strong background in team leadership and project management, ensuring timely delivery within scope and budget. Holds a Master's degree in Computer Engineering complemented by advanced technical skills across a myriad of technologies including AWS, TypeScript, JavaScript, React, Node.js, and Microservices. Experienced with a variety of databases such as SQL, MongoDB, and DynamoDB, and tools like Docker, Kubernetes, and Terraform for DevOps. Demonstrates a keen ability to integrate third-party services and has a solid foundation in continuous integration and delivery practices.

- 4+ years of professional experience using front-end and back-end technologies - Front-end: HTML, CSS, BEM, SASS/SCSS, Bootstrap, Webpack, Material-UI, ReactJS, Redux, Redux-Saga, Jest, Lodash, React-Hooks, React-Query - Back-end: NodeJS (Express), Nest.js, REST API, Docker, OAuth, Postgres, TypeOrm, Sequelize - Upper-Intermediate English level - Available in 2 weeks after approval for the project

- 16 years of experience in IT. 3 years of experience as a Flutter Developer. - He has experience in developing applications from scratch using the Flutter framework. - Intermediate English - Available ASAP