Hire Vetted Desktop Application Engineers at Upstaff
All vetted software engineers you need to build AI, Web3, and data Products.
- Dedicated Full-time commitment for long-term or Time& Material for shorter or ongoing support
- Europe, Israel, LatAm, United States, Asia geography coverage
- Remote and hybrid engagement
- Trial period, no termination fees or hidden costs for transparent and risk-free onboarding.
Desktop Application
All
Web Application
Data and Analytics
Cloud and Operations
Mobile Application
Blockchain
Digital Platforms
Design and Creative
Quality Assurance
Project Management
Desktop Application
Marketing and SEO
Scripting and Automation
Embedded Systems
Writing and Translation
Low-Code and No-Code
GameDev
Industrial Engineering
Node.js 10yr.
• 15+ years JavaScript programming
• Over 10 years in Node.JS programming
• Familiar with React.js
• Experience building highly scalable distributed web applications and browser extensions
• Extensive experience with REST services
• Strong communication and cooperation skills
• Solid experience as a Backend developer
• Fluent in English, written and spoken
• long Term experience in remote work with USA and Europien companies
• Self-directed person, with proven ability to manage goals and deadlines effectively
Objective-C 10yr.
iOS 10yr.
C++ 10yr.
Swift 5yr.
- Served as a Senior Software Developer in the Two German Automotive Navigation Projects, focusing on System Team operations as well as Map and Routing domains.
- VPN and Network Filtering Development: Extensive experience developing VPN solutions, including cross-platform engines for KeepSolid’s VPN Lite, and expertise in low-level network filtering, proxies, and handling internet traffic.
- iOS Development Expertise: Over 10 years of hands-on experience with iOS development, including business apps and secure communication tools, with proficiency in Swift and Objective-C.
- C++ Proficiency: Strong background in C++ for developing core network functionalities, optimizing performance, and building cross-platform applications.
- Enterprise Application Development: Skilled in developing enterprise-level applications, including parental-style internet filters and device policy management tools.
- Agile Methodologies: Proven track record of working in Agile Scrum environments, delivering high-quality software with fast iteration and strong collaboration.
- Leadership and Team Collaboration: Experience as a Tech Lead, mentoring teams, and coordinating with stakeholders to resolve issues and implement new features.
- Available to start ASAP
Delphi 20yr.
React
Node.js
- Software Engineer with over two decades of experience, specializing in system design, and system integration (System Design, Technical Leadership, System Integration, Scalability, Security, Communication, Documentation);
- Strong abilities with React.js for building, interactive web applications;
- Experienced in Java, Spring Boot, and creating microservices;
- Skilled in Node.js for backend development;
- More than 20+ years of experience with Delphi, Deep knowledge with different versions of Delphi to 10.2;
- Experience with various localisations and Delphi UIs;
- Expert in various programming languages including C++, JavaScript, and Python;
- Experienced in database management with Oracle, MySQL, and PostgreSQL among others (Data Modeling Database Management, Normalization and Denormalization, Data Integrity, Data Warehousing, ETL, SQL and Query Optimization, Database Design, Stored Routines and Packages, Data Backup and Recovery, Data Migration, Web Scraping);
- Experience in technical leadership in various domains such as enterprise software, finance, and healthcare.
Teamwork
I have been able to achieve so many things in a financial investment company,I learnt how to check the bank position of the company daily,how to confirm payment etc
C++
I reduced API response time by 75 percent from 1.2 seconds to 0.3 seconds using FastAPI and Redis caching. I built a payment system handling over 2 million monthly requests with zero downtime for twelve consecutive months. I migrated a fifteen-year-old MFC legacy system to modern C Sharp and .NET, cutting maintenance costs by 60 percent and tripling data processing speed. I also developed cross-platform desktop applications using Qt framework that reached over 10,000 downloads across Windows, macOS, and Linux.
C++
I reduced API response time by 75 percent from 1.2 seconds to 0.3 seconds using FastAPI and Redis caching. I built a payment system handling over 2 million monthly requests with zero downtime for twelve consecutive months. I migrated a fifteen-year-old MFC legacy system to modern C Sharp and .NET, cutting maintenance costs by 60 percent and tripling data processing speed. I also developed cross-platform desktop applications using Qt framework that reached over 10,000 downloads across Windows, macOS, and Linux.
C# 7yr.
Java 6yr.
TypeScript 6yr.
PostgreSQL 6yr.
- Senior software engineer with 10+ years delivering complex systems in Java, .NET/C#, JavaScript, and Avalonia/WPF desktop applications.
- Founder and CEO of a software consultancy with proven success in e-commerce, FinTech, video management and telecom domains.
- Strong background in software architecture, Agile/Scrum methodologies, CI/CD pipelines, and technical consulting for enterprise-grade projects.
- Advanced education in ICT and Computing from the University of Zagreb (FER)
OutSystems 5yr.
.NET
OutSystems Service Studio
OutSystems Integration Studio
- 16+ years experience in IT
- Extensive leadership experience across various IT domains, managing diverse teams, spearheading critical projects, and championing training initiatives in both software development and educational settings.
- Over 5 years of experience as a Senior OutSystems Lead Engineer, focusing on the development and enhancement of web applications using OutSystems v11.
- 2+ years of hands-on experience with agile methodologies, validated by a Scrum Master certification.
- 2+ years of expertise in both JavaScript and PostgreSQL, complemented by a year of experience with NoSQL databases.
- Demonstrated skills in Unit Testing across multiple projects, and experience in working closely with QA teams on Performance Testing.
- Comprehensive background in a wide range of technologies, leadership roles, and project management, supporting OutSystems and other software development tasks.
- Awarded Outsystems Certificates: Outsystems Professional Web Developer (2020); OutSystems Associate Reactive Developer (2022).
- Advanced English
JavaScript 4yr.
CSS/HTML 4yr.
Node.js 4yr.
Angular 4yr.
TypeScript 1yr.
Software engineer with a Bachelor's degree in software engineering and over 6 years of professional experience in developing web, mobile, and desktop applications. Emphasizes technical expertise in a range of programming languages including Typescript, Javascript, C#, Java, HTML/CSS, Python, Visual Basic, and C++. Experience with modern technologies and frameworks like Angular, Ionic, .NET Core, Vue.JS, and React. Skilled in various databases such as Microsoft SQL Server, Postgresql, Firebase, MySQL, and Mongo DB. Demonstrated ability in leading teams as an eCommerce Tech Lead and facilitating process automation using AI. Proficient in multiple operating systems, version control systems, and has engaged with cloud services including AWS. Known for strong skills in decision-making, leadership, and a capability to learn independently, showcased through continuous career progression from junior developer to technical leadership roles.
Python 10yr.
Django REST framework 10yr.
JavaScript 10yr.
React 7yr.
TypeScript 5yr.
Senior Software Engineer with a BSc in Computer Science and over 10 years of experience specializing in Python, Django, JavaScript, React, TypeScript, and cloud platforms like AWS and Azure. Demonstrated ability in creating scalable microservice architectures and developing high-performance backend services, with a keen eye for front-end user experiences. Proficient in deploying applications using CI/CD pipelines and proficient in database management with systems such as PostgreSQL. Successfully evolved ML workflows in FinTech, eCommerce, and AI, enhancing operations and boosting performance.
.NET
MS Dynamics 365
React
Azure
- 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
Delphi 25yr.
SQL
Visual Basic
Pascal
Software engineer with over 25 years of development experience, possessing extensive expertise in Delphi (VCL/FMX) and database management across various sectors. Notable for implementing performance-focused custom applications, this engineer's technical proficiency also spans C#, Visual Basic, SQL, and multiple database systems. They have a strong track record in system administration and IT support, having worked with reporting tools like Crystal Reports. Holds a Diploma in Computer Program from BIG SERVICE, showcasing a solid foundation in computer science.
C++
- Strong knowledge of C/C++, 20 years of experience in firmware and embedded development using different types of micro-controllers and microprocessors
- Design of different measuring units for MWD-systems, SCADA systems for industrial equipment
- Experience and understanding of OOP, component design
- Deep experience in developing measuring equipment
- Involvement in long-term projects, which gave me strong experience in various areas of software design and development, including design of client-server systems, low-level firmware development and testing projects.
- Solid knowledge in using various tool required for successful project development: Issue and Bug Tracking systems, Source Control systems, Code Review tools.
- Active teamwork attitude, quick learning ability, good skills in problem solving.
-Sociable, result oriented, Good logical thinking
- Intermediate English.
- Availability starting from ASAP
PHP
JavaScript
jQuery
MySQL
PostgreSQL
Expert software engineer with 20+ years of experience specializing in backend and full-stack development. Proficient in an array of languages like PHP, Visual Basic, and JavaScript, with a strong foundation in database architecture across MySQL, PostgreSQL, and SQL Server. Demonstrates a consistent track record of optimizing system performance and scalability, evidenced by a 40% reduction in load times and a successful migration from Delphi to PHP. Holds an engineering degree and numerous technical certifications, underpinning a solid educational foundation in computer science. Recognized for advanced technical skills and delivering high-impact projects such as ScanChex Mobile and comprehensive payroll and administrative systems.
C++
Qt Framework
Python
PostgreSQL
- 7+ years of experience in C++ software development across desktop and embedded systems;
- Experienced with 15+ commercial projects in automotive, fintech, and embedded domains;
- Skilled in C++, Qt, QML, Python, and experience with JavaScript, Lua, and TypeScript for cross-platform applications;
- Skilled in REST API, HTTP, VoIP, SIP, and DICOM integrations;
- Experience with GitLab, Jenkins, Azure, TFS, SVN, CodeBlocks, QtCreator, and Visual Studio across Windows, Linux, and Mac environments;
- Solid understanding of SDLC, clean architecture, software optimization, and code refactoring for performance and maintainability;
- Experienced in mentoring team members, code reviews, and ensuring adherence to best engineering practices.
C++ 15yr.
Software engineer with over 15 years of experience in Windows desktop application development, specializing in scientific software and business solutions. Core technical competencies include advanced knowledge in C++, Delphi, and Python, with a strong background in scientific research and programming within academic and commercial sectors. Proven track record in developing complex scientific software for gamma spectrometry analysis and environmental radiation monitoring. Demonstrated ability to architect and maintain comprehensive POS systems for retail management. Educational background includes a Master's degree in Physics, emphasizing nuclear and particle physics, which underpins a solid understanding of scientific computational requirements. Commitment to professional growth is evidenced by continuous freelance work and publications in scientific journals.
Delphi
AWS
Salesforce
Salesforce AppExchange
Software engineer possesses robust problem-solving skills and experience in writing scalable code. Specializes in Delphi RAD Studio, with hands-on experience in ETL operations and third-party integration (Kawasaki, Honda, Briggs & Stratton, etc.). Brings proficiency in Azure Cloud Services, Salesforce (Admin + Developer), and diverse programming languages including C and C#. Holds certifications in Salesforce Platform Developer I, Azure Developer Associate, and Azure DevOps Expert. Educational background includes a BS in IT and an M.Sc in Criminology & Security Studies. Over 4 years of experience as a Senior Software Developer and adept in SMS/Email systems, payment gateways, and accounting software integrations.
Team Leadership 5yr.
Software engineer with over 20 years of experience in core banking system implementations and integrations, with a strong background in computer science and business administration. Expertise in leading integration teams, developing system functionalities and managing end-to-end project deliverables. Proven track record in supervising technical teams, engaging with business stakeholders, and providing solutions within the financial services industry. Hands-on experience with Temenos OFS, CRPL Cash Management, and Oracle Financials, evidenced by successful project completions. Adept in SDLC, Agile methodologies, and possess ITIL and PMI-ACP certifications, signifying a commitment to best practices and continuous improvement in the IT sector.
$25/hr
$4000/month
$4000/month
Erlang
Elixir
PostgreSQL
Software Engineer​ with 6 years of software development experience. Fluent with agile methodologies, software design principles & approaches.​ Experienced with ​capturing and analyzing business requirements, their decomposition & further tasks planning. Result-oriented, open-minded, stress-resistant. My goal is to grow up ​own professional skills in development and make great contribution to company's growth.
C++ 7yr.
CMake 5yr.
- 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.
Project Management 5yr.
Project Planning 5yr.
Project Scheduling 5yr.
Software Engineer with 19+ years of comprehensive experience in the design, development, and management of applications across various domains such as E-commerce, Banking, Healthcare, and more. Proficient in a wide array of technologies, including .NET, C#, ASP.NET, SQL Server, MVC architecture, and a strong command over web technologies like AngularJS and ReactJS. Skilled in both Waterfall and Agile methodologies, adept at project management with a successful track record of leading and implementing large-scale applications. Contributions to projects have consistently driven faster MVP releases and enhancements, while fostering team development and overseeing the complete SDLC.
Python 20yr.
React 7yr.
Azure 2yr.
- 26+ years of experience in IT;
- 20+ years experience working with Python;
- 2 years experience working with Azure;
- 7 years experience with React;
- Experience working with Flask;
- 15+ years experience working with Java;
- Experience working with Kotlin, Spring;
- 8+ years working with JavaScript;
- Good skills with Angular, TypeScript, and Node.js;
- Deep abilities working with PostgreSQL, SQL, MySQL, and MongoDB;
- Good knowledge of AWS;
- Experience working with Docker, Terraform;
- Deep skills with C, and C++;
- English: Upper-Intermediate.
OutSystems
- Software Engineer with a broad software development experience in commercial projects. - Prefers to work in Microsoft stack but is also familiar with other environments like Outsystems or UiPath.
- His command of English allows to communicate freely, as it was the default language for most of his employment. Always open to innovation.
Java
- 15+ years experienced and result-oriented software engineer with strong technical, analytical, and mentoring skills.
- Having wide expertise in computer science working with different technologies including front and back-end side (mostly Java, Java Script), Key person in leading development of products from scratch throughout the project life cycle.
- Excellent problem-solver able to take responsibility for project delivery on time. Successful in solving complex challenging tasks.
- Fluent English.
Go
- 28+ years of experience in the tech
- Higher engineering education
- Implemented more than 100 successful projects in various fields
- Managing units of more than 10 people
- Development of WEB projects and REST API services
- Management of the development and implementation of projects
- Upper-Intermediate English
- Available ASAP
Node.js
- 4 years of commercial software engineering experience
- Experienced with backend development in Node.js and PHP
- Intermediate English
- Available ASAP
PHP
Go
- Software Engineer with over 7 years of experience
- 3 years of experience with Go
- Work on Php, Node and Golang
- Upper-Intermediate English.
- Available ASAP
Python 12yr.
- 12 years with Python (Django, Flask, and other Python frameworks), PostgreSQL 10 years
- 22 years of experience in tech
- Strong experience in data structures, software development with object-oriented design, cloud platforms
- Data scraping from SourceForge & Yahoo Finance, ETL pipelines
- ELK (Elasticsearch, Logstash, Kibana) stack, various Data / API Integrations, IoT (Internet of Things)
- Advanced English
- Available ASAP
C#
Java
SQL
AWS
MongoDB
- 13+ years of experience in IT
- Work in a globally competitive environment on challenging assignments that yield steady professional growth. I was a part of a professional and highly successful team implementing innovative ideas and the latest technological trends. Very flexible as regards moving from project to project and assimilating new technologies
- Advanced English.
IOT
- 7+ years of experience in IT
- Upper-Intermediate English
- Available ASAP
Python
Elixir
Go
Kafka
- 20+ years of software development
- 5+ years of Python & Elixir, Go development, .Net development
- Mathematical Science education (diploma with honours), R language for statistical computing and graphics
- Strong knowledge in Python, Go, Redis, Elixir, ASP.NET MVC, Angular, DevExpress, C++, PHP, MS SQL Server, PostgreSQL, Oracle SQL, NodeJS, React, React Native, Azure, AWS, Apache Kafka
- Strong knowledge of ERP Systems
- Strong web technologies
- Extensive knowledge of software development lifecycle
- Available in approx 4 weeks