Hire the best Product Developers in Sofia, BG

Check out Product Developers in Sofia, BG with the skills you need for your next job.
  • $35 hourly
    Hello! My name is Hristo and I am a Product manager with 10+ years of experience, in building and releasing B2C and B2B SaaS digital products, starting from scratch. My passion is in Product management and Product innovation. I have been employing my skills in the Online Gaming, eCommerce and Digital Marketing domains. I have worked in various companies, both small startups and multinational corporations, while also managing and mentoring people to success! Now I am at a stage in my career, where I feel like I want to share what I've learned with fellow entrepreneurs, and help them to succeed in their ventures! Along the way I learnt that success never comes easy! That's why it is critically important that you deploy modern Product Management practices, ideally even before you write the first line of code. However it's never too late to bring the right people and knowledge on board.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Relationship Management
    Wireframe & Prototyping Software
    Management Skills
    Product Launch
    Customer Relationship Management
    Product Discovery
    Market Analysis
    IT Project Management
    Analytics
    Customer Acquisition
    Client Management
    Product Roadmap
    Product Design
    Product Management
  • $97 hourly
    ✅Expert-vetted & pre-screened by the Upwork team for the top 1% of Product Management talent working with enterprise clients ✅I work with founders, investors, and executive teams to turn Vision into scalable, high-performing digital products. Whether you're building a SaaS, Marketplace, or AI-driven platform—or navigating M&A due diligence—I bring 15+ years of expertise leading 500+ projects (from startups to Fortune 500s). I specialize in product management, development and strategy, digital transformation, and business scaling, ensuring your team moves fast with clarity and precision. Let’s connect to de-risk decisions, accelerate growth, and maximize value in your next venture. 🚀 Expert-Vetted (Top 1%) | Building & Scaling SaaS, Marketplaces, and AI-Driven Solutions | Fractional CTO & COO Who I Work With: ✔ Founders & CEOs looking to launch or scale, SaaS & AI-driven products ✔ Investors & PE firms needing M&A technology advisory and due diligence ✔ Teams seeking product & agile leadership to accelerate execution 💡 Key Outcomes I Deliver: ✅ Product-Led Growth – Go-to-market strategies that drive revenue & adoption ✅ M&A Technology Due Diligence – Ensuring seamless transitions & risk mitigation ✅ SaaS & Marketplace Scalability – Optimizing product-market fit & business operations ✅ AI & Automation Strategy – Integrating AI-driven solutions for competitive advantage ✅ Agile & Cross-Functional Leadership – Leading teams to execute efficiently at scale Why Clients Trust Me ⭐⭐⭐⭐⭐: 🔹 “Mitko’s experience and strategic mindset transformed our SaaS business.” 🔹 “His leadership and execution helped us scale to a multimillion-dollar exit.” 🔹 “An invaluable asset—deep expertise, clear communication, and results-driven.” 🚀 My Background & Expertise: ✔ Product Strategy & Management – Roadmaps, GTM, monetization ✔ Fractional CTO/COO Leadership – Aligning business & technology ✔ M&A & Due Diligence – Risk assessment, tech audits, post-acquisition strategy ✔ AI & SaaS Growth – Implementing AI & automation to drive efficiency ✔ Agile & Scrum – Certified Scrum Master, fostering high-performing teams ✔ Angel Investor - Reviewing 50+ company pitches each year 📢 Let’s Build Something Exceptional Together Invite me directly to your project or send a direct message. I offer a Free 30-minute Strategy Call to discuss your goals. Let’s connect and explore how I can help you Go-to-Market, scale faster, optimize operations, and drive impact.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Scrum
    Business Planning & Strategy
    Ecommerce Website Development
    UX & UI
    Product Roadmap
    Startup Consulting
    Strategy
    Business Analysis
    Business Consulting
    Business Coaching
    Management Consulting
    Agile Project Management
    AI Product Management
    Product Management
  • $45 hourly
    I am an experienced engineer with over 8 years of experience in the Automotive, Medical, Industrial, IoT and Commercial fields. I have completed more than 30 projects and have a strong track record of understanding my clients’ needs. My expertise includes Schematic development, PCB Design, Microcontroller programming and Systems Engineering. I have successfully delivered projects ranging from small-scale prototypes to large-scale production runs. My clients appreciate my ability to lead their ideas from concept to a complete product on the market. I am dedicated to delivering high-quality work, ensuring customer satisfaction and building long-term relationships with my clients.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Analog Electronics
    USB Electronics
    Microcontroller Design
    Verilog
    Project Management
    Electronic Design
    Electrical Engineering
    Digital Electronics
    Microcontroller Programming
    FPGA
    Hardware Design
    Embedded C
  • $50 hourly
    A great believer in the gig economy, I am an IT professional with nearly 15 years of experience in the areas of: Product Ownership & Business Analysis: - Requirements elicitation, requirements engineering, customer interviews, systems analysis - Deep dive into ideas and systems in order to develop them into requirements specification - Creation of software requirements specifications (SRS), use cases, user stories, complex process flow diagrams, software data flow diagrams, BPMN, etc. - Creation of wireframes (Balsamiq) - Requirements hand-off to design and development teams - Jira project administration Technical Writing & Process Development: - Creation of customer-facing SOPs (Standard Operating Procedures), L1 to L4 process documentation, business process documentation, solution documentation, RFP documentation, business requirements documentation, etc. - Development of process flow diagrams and charts (Microsoft Visio, Lucidchart, draw.io, etc) - Document formatting, creation of templates, (re)branding, creation of forms and active controls IT Service Management (ITIL Service Strategy, Service Design and Service Operations CERTIFIED) & IT Project Management: - Design, development and implementation of IT processes; mapping these processes to ITSM workflow tools (HPSM, BMC Remedy, ServiceNow, OTRS) - Assessment and analysis of current process environment and identification of opportunities for improvement - Design, development and implementation of operational, KPI and SLA reports - Project scoping, creation of project plans and project schedules, project status reporting, deliverables and milestones management, etc. - Communication with stakeholders, workshop facilitation, expectations management - Team coordination, resource management, etc. I have vast experience in IT outsourcing contracts (of different scale) and I have participated in different parts of the service lifecycle (pre-sales, solutioning, transition and transformation, operations, close down). I am an established professional with high work ethics, I am well accustomed to deadlines and working with different cultures. Work in virtual teams is part of my DNA as I have spent predominant part of my professional life in this mode. Looking forward to working with you!
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Product Roadmap
    Dev & IT Project Management
    Wireframing
    Jira
    Product Backlog
    Management Consulting
    Product Management
    Sprint Planning
    Atlassian Confluence
    Business Analysis
    Backlog Grooming
  • $90 hourly
    I am “multi-role fighter” professional with extensive background in fintech, corporate finance, business development, e-commerce and IT project management. Over the course of my 13-year career, I have occupied various senior and executive positions, most recently as CEO of an innovative startup. My track record includes successfully executing numerous fundraising, financing and investment deals and co-founding and leading several startup projects. As result of my diverse background, I have managed to build-up proficiency in several core business domains such as financial modelling, strategic management, business and product development, project management, operational setup, process optimization, team leadership, as well as sales and marketing. I possess an in-depth knowledge of both the Bulgarian and European startup ecosystems and maintain a keen interest in fintech, Web 3.0, circular economy, ESG, AI and all new technologies. If your start-up or company needs help in any of my domains of expertise I will be glad to help you.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    FinTech
    DeFi
    Software Architecture & Design
    Business Consulting
    Strategic Planning
    Strategy
    Data Science
    Fundraising
    Corporate Finance
    Financial Modeling
    Business Modeling
    International Development
    Business Development
    Sales & Marketing
  • $15 hourly
    Software Engineer ✅🗓️ 3+ years experience as a React/React Native Developer I'm a React and React Native developer willing to improve your business and bring your ideas into reality. Starting from the UI until delivering a live working app, I can handle any part of the development process. Focus on quality of code, accurate fulfillment of client requirements Skilled at team collaboration while working independently in remote projects. I am available to assist with resolving any issues in your project. Tech Skills: ✅ Back-end stack: Node.JS, Express.JS. ✅ Front-end stack: React.JS, React Native, Next JS. ✅ Front-end technologies: HTML5, CSS3, TypeScript, JavaScript, Redux, Redux-Saga, three.js. ✅ Front-end frameworks: Webpack, CSS Modules, React Query, GraphQL. ✅ Experience in Databases: MySQL, PostgreSQL. ✅ Area of expertise: Healthcare, Social Networks. ✅ Specific Application Development: Meeting Application for MS Teams, Video Editor in web, Viewer for Surgical Model Soft Skills: ✅ Able to quickly learn and apply new technologies. ✅ Development for me is a challenge where I am capable of creating complex projects and find the best solutions. ✅ Focus on quality of code, accurate fulfillment of client requirements ✅ Open for support 8 - 12 hours a day. ✅ Self-motivated and proactive, with demonstrated creative and critical thinking capabilities
    vsuc_fltilesrefresh_TrophyIcon Product Development
    .NET Core
    Websockets
    Apollo GraphOS
    Redux Saga
    React Native
    ASP.NET
    Java Servlet API
    Java
    Responsive Design
    SCSS
    Redux
    JavaScript
    TypeScript
    React
  • $55 hourly
    I will leverage 15+ years of experience in project and program management, a master’s level education, a broad spectrum of technological skills, and strong work ethic to assist you in delivery of your project goals. I will work to ensure that any outcome meets or exceeds your expectations. I have worked for notable companies such as the IKEA, Bank of Ireland, Swedbank, Nordea Universal Bank, MCB Bank, Mashreq Bank, Al-Ansari Exchange, Vodafone Germany and Italy, Dubai Economy and Tourism (DET), Dubai Electricity and Water Authority (DEWA), Neste Oil, Orsted Energy, Tele2, Oredoo and Emirates National Oil Company (ENOC). My successfully experience spans in managing projects in Africa, Asia, Europe, Middle East, UK and USA. I’m also an Award-Winning Creative Producer who strives to create original, fun, and boundary-pushing content with every project I work on. I have a broad spectrum of technological skills and I’m always looking to work on new, innovative, exciting, and challenging projects taking them from initial creation all the way to the end of post-production. I make people around me shine, hence, I am always surrounded by the most talented people in this universe. They have crafted visual effects for various Hollywood productions, some of which were nominated for Oscars and developed AAA Games.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Visual Effects
    3D Design
    3D Rigging
    3D Animation
    Automation
    Virtual Reality
    Augmented Reality
    Mixed Reality
    Software Development
    IT Project Management
    Artificial Intelligence
    Smartsheet
    Agile Project Management
    Jira
  • $75 hourly
    SUMMARY Passionate Software Engineer with 10֡ years of experience in developing web applications and backend systems. Skilled at writing clear, concise code that is easy to maintain and troubleshoot. Experienced in working with both small and large teams across multiple projects and companies. Able to work independently of remote locations or in office environments as needed by the company.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    International Development
    Web Development
    Web Application
    MongoDB
    Node.js
    React
    JavaScript
    CSS
    HTML
  • $35 hourly
    SUMMARY As a Certified Salesforce Commerce Cloud (SFCC) Developer with more than 8 years of experience I have been able to specialize in eCommerce solutions, delivering scalable and robust storefronts. I am skilled at writing clear, concise code that is easy to maintain and troubleshoot. Experienced in working with both small and large teams across multiple projects.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Specifications
    Web Development
    Ecommerce Website
    Ecommerce
    International Development
  • $80 hourly
    I am a passionate and experienced software developer, who enjoys creating new and effective solutions for clients around the world. I have a good understanding of both software and website development and therefore I can provide the following services: software design, web application development and creation of responsive websites. I am conversant with a number of programming languages and frameworks that enable me to provide quality, scalable and timely solutions that meet business goals. I am currently providing my services and I always endeavor to provide beyond the client’s expectations through professional and timely communication. If it is website development or creation of robust software, I am committed to assisting businesses in the achievement of their digital objectives.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Artificial Intelligence
    Ecommerce
    Ecommerce Website
  • $50 hourly
    Frontend Engineer experienced in building web applications for businesses of all sizes. Whether you need a dynamic website, a user-friendly interface, or a complete frontend solution, I can help. - Skilled in JavaScript, React.js, and TypeScript, Automations, Scripts. - Full project management. - Effective communication is essential.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Automation
    Quality Assurance
    Script
    HTML
    CSS
    Node.js
    PHP
    JavaScript
    TypeScript
    React
    Web Development
    Web Application
  • $20 hourly
    Hi, I’m looking for job on the side, I can help with projects, documentations, presentations, school work etc.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Microsoft Virtual Server
    Oracle Enterprise Service Bus
    Business Management
    Office 365
    Management Skills
    Documentation
    Project Management
    Agile Project Management
  • $18 hourly
    🏆 Top 1% Talent on Upwork | 7+ Years of Experience in mobile applications, websites, and automated workflows. I specialize in merging cutting-edge design, advanced automation, company websites and e-commerce development to drive business success for companies of all sizes—from startups to large enterprises. Excellence in Java, JS, PHP, C#, Python Areas of Expertise: 🛠 Automation & AI Integration: Automation tools like Make.com and Zapier Artificial Intelligence solutions such as ChatGPT and Google Gemini to enhance business processes and customer engagement 🛠 UI/UX Design for Web and Mobile Applications: Mastery of Figma,Webflow, Adobe XD, Photoshop, and Illustrator for designing user-friendly interfaces Specialized in iOS and Android app design, ensuring cross-platform consistency and performance Wireframing, prototyping, and designing intuitive user journeys for seamless interactions 🛠 E-commerce Development & Optimization: Shopify, WooCommerce, and Amazon Seller Central expert, focused on conversion rate optimization (CRO) and maximizing sales Deep experience with platforms like Webflow and Squarespace for modern, visually appealing storefronts Proficiency in SEO best practices, ensuring high visibility and traffic growth 🛠 Web Development & Integration: Proficient in WordPress, Laravel, React.js, HTML/CSS, and JavaScript to deliver both front-end and back-end development Experience with custom APIs, database management, and integrating systems across platforms Xamarin for mobile app development with unified code for iOS and Android Why Work with Me? 🔥 Holistic Approach to Design and Development: From conceptualization to launch, I handle all phases of the project lifecycle. Whether it's designing a sleek mobile app interface or automating repetitive tasks to boost efficiency, my focus is on creating impactful, user-friendly, and future-proof solutions. 🔥 Automation-Driven Results: I help businesses streamline their operations by automating mundane tasks, saving thousands of hours annually. My expertise in AI-driven solutions empowers companies to better understand and serve their customers. 🔥 SEO & Conversion-Focused Solutions: I build websites and apps with a solid understanding of SEO architecture, ensuring your digital presence ranks well on search engines. My CRO techniques focus on driving conversions and increasing user engagement across platforms. Tools & Technologies I Excel In: Automation: Make.com, Zapier, Custom APIs AI Solutions: ChatGPT, Google Gemini,Replica Api, Chatbots Web Development: WordPress, Shopify, Webflow, WooCommerce Design Tools: Figma, Adobe XD, Photoshop, Illustrator Mobile Development: React Native, Xamarin for iOS & Android E-commerce Platforms: Shopify, WooCommerce, Amazon Seller Central Project Management: Monday.com, Asana, Trello, ClickUp Data Tools: Google Sheets, Airtable, Excel SEO & CRO: Advanced understanding of SEO principles, A/B testing, heatmaps, and analytics tools like Google Analytics Customer Service Platforms: Zendesk, Intercom, Freshdesk CMS Platforms: Webflow, WordPress, Squarespace API Integrations: Custom APIs, AI Chatbots, and CRM integrations (HubSpot, Salesforce, Pipedrive) Client Outcomes: ERP,CRM,HCM,SCM systems 💼 $50K+ Annual Wage Savings: By eliminating manual tasks and implementing automation, my clients enjoy significant time and cost savings. 💼 95% Time Reduction in Report Generation: Automating complex workflows helps clients achieve faster, more accurate reporting. 💼 Enhanced User Experience & Increased Sales: Through my UX/UI designs and CRO strategies, I have helped e-commerce clients significantly boost conversion rates and overall revenue. Industries I've Worked In: 📦 E-commerce (Retail, Fashion, Health, Cryptocurrency, NFT) 💡 Education (E-learning platforms, tools) 🏢 Real Estate 🎨 Entertainment 🍴 Food & Hospitality Logistics, Manufacturing,Pharmaceutical , Dental, AI
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Back-End Development
    Front-End Development
    Enterprise Resource Planning
    Webflow
    Figma
    WordPress
    WooCommerce
    Shopify
    Software Development
    Web Development
    Web Application
    iOS Development
    Android App Development
    Mobile UI Design
  • $40 hourly
    Software engeneer for web based applications and platforms. I have also experiance in project management and DevOps.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Amazon Web Services
    React
    Angular
    JavaScript
    PHP
    Product Management
    Scrum
    Web Application
    Ecommerce
    Web Development
  • $30 hourly
    Experienced software engineer specializing in building complex financial products for international clients. Skilled in collaborating with major banks and card providers to deliver cutting-edge solutions. Proficient in Java, Groovy, and React to develop innovative software applications. Strong problem-solving abilities and a proven track record of delivering high-quality projects on time. Passionate about staying updated on the latest technologies and continuously improving skills to drive successful outcomes.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    International Development
    Apache Camel
    Redis
    MariaDB
    MySQL
    Relational Database
    Jenkins
    Gradle
    Apache Kafka
    React Native
    React
    Apache Groovy
    Java
  • $50 hourly
    Software engineer with extensive experience in the analysis, design, deployment and integration of web based applications and services. I consider myself a good communicator, enthusiastic and committed team member and also a calm and self-motivated person.Co
    vsuc_fltilesrefresh_TrophyIcon Product Development
    International Development
    Ecommerce
    Desktop Application
    Ecommerce Website
    Web Development
    Web Application
    JavaScript
    Back-End Development
    Front-End Development
    NoSQL Database
    Architectural Design
    SQL
    .NET Core
  • $20 hourly
    As a passionate game and software developer, I specialize in creating engaging, interactive games and applications across multiple platforms. With a focus on Unity and C#, I excel at building 2D and 3D games, including multiplayer browser games. My expertise spans from game mechanics and physics to networking and performance optimization. Top Skills: - Game Development: Expertise in Unity and C# for creating interactive and fun games. - Multiplayer Games: Building multiplayer experiences with frameworks like Photon Networking and WebRTC. - Web & Desktop Applications: Designing applications for multiple platforms, ensuring seamless user experiences. - Problem Solving & Optimization: Focused on debugging, optimizing performance, and creating efficient code. - Collaboration: Experience working in small, dynamic teams to bring game projects from concept to completion. Whether you're looking to develop a fun indie game or need a reliable developer for your next project, I'm here to help bring your vision to life. I pride myself on clear communication, creative solutions, and delivering projects on time.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Smartphone
    Personal Computer
    Software Development
    Construction Document Preparation
    Desktop Application
    International Development
    Web Application
    Game
    Game Design
  • $25 hourly
    🔥 Full-Stack Web Developer | JavaScript, React, Node.js Hi there! I’m a skilled web developer with 2 years of experience building modern, fast, and highly optimized websites and applications. I specialize in JavaScript (React, Node.js, Express) and API integrations, helping businesses and entrepreneurs create efficient digital solutions. ✅ What I Can Do for You: • Develop high-quality, fast, and responsive websites (WordPress, custom CMS, Webflow) • Build dynamic web applications with React, Vue.js, and Next.js • Backend development using Node.js, Express, Firebase, MongoDB, MySQL • API integrations and system optimizations • Website maintenance, migration, and improvements
    vsuc_fltilesrefresh_TrophyIcon Product Development
    International Development
    Web Development
    Web Application
    Specifications
    Smartphone
  • $40 hourly
    Front-End Developer bringing 10 years of experience and proficiency in React to build dynamic and user-friendly web applications. My expertise lies in translating complex requirements into seamless, responsive interfaces that enhance user engagement and drive business success. Beyond my technical skills, I am known for my positive attitude and collaborative spirit, I thrive in environments that encourage continuous learning and innovation. I am committed to delivering high-quality solutions and contributing positively to both my professional team and the broader community.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Web Application
    Drupal
    React
  • $50 hourly
    I'm a seasoned software engineer with more than 20 years of experience as a full-stack developer, leader, and architect. Any technology does not constrain me, but my biggest experience is around the JS/TypeScript stack on the front end, back end, and mobile. I'm a certified cloud architect with vast corporate experience as a senior and principal solutions architect. Having profound experience with data analysis and AI/ML, I can also guide your success in the AI era. Finally, I've worked in the founding teams of multiple startups and can design solutions for the early development of innovations.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Cloud Engineering
    Cloud Computing
    Market Validation
    Prototyping
    AI Product Management
    Product Management
    Cloud Application
    Cloud Architecture
    Solution Architecture
    Clean Architecture
    Artificial Intelligence
    Web Application
    App Development
    Web Development
  • $25 hourly
    Greetings! I'm an accomplished professional with a wealth of experience in product ownership, business analysis and agile methodologies. Here's why you should consider collaborating with me. 6+ years as a Business Analyst, Product Owner and Project Manager. Working closely with engineers, designers, marketers, support, and other teams in the company. I'm extremely focused on improving customer experience and achieving ambitious and strategic goals. I understand programming, business processes, and market needs. My passion lies in bridging the gap between technical and non-technical stakeholders, and delivering high-quality integrated products to the market while adhering to the highest standards of excellence and continuous learning. Domain knowledge in E-com, FinTech&Banking, Recruitment, Real estate.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Business Analysis
    GitLab
    Zoho CRM
    Jira
    Microsoft Visio
    Figma
    Business Management
    Management Skills
    International Development
    Product Management
    Software Development
    Agile Project Management
    Agile Software Development
  • $7 hourly
    My name is Antonina and I am very happy to have the opportunity to use this platform to gather experience and knowledge in my desired field.
    vsuc_fltilesrefresh_TrophyIcon Product Development
    Web Application
    Web Development
    International Development
    Scrum
    Product Management
    Product Backlog
  • Want to browse more freelancers?
    Sign up

How hiring on Upwork works

1. Post a job

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.

Trusted by

How do I hire a Product Developer near Sofia, on Upwork?

You can hire a Product Developer near Sofia, on Upwork in four simple steps:

  • Create a job post tailored to your Product Developer project scope. We’ll walk you through the process step by step.
  • Browse top Product Developer talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top Product Developer profiles and interview.
  • Hire the right Product Developer for your project from Upwork, the world’s largest work marketplace.

At Upwork, we believe talent staffing should be easy.

How much does it cost to hire a Product Developer?

Rates charged by Product Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.

Why hire a Product Developer near Sofia, on Upwork?

As the world’s work marketplace, we connect highly-skilled freelance Product Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Product Developer team you need to succeed.

Can I hire a Product Developer near Sofia, within 24 hours on Upwork?

Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive Product Developer proposals within 24 hours of posting a job description.