Hire the Best Software Development Freelancers
in Croatia

More than 3,000 reviews on G2
Rating is 4.5 out of 5.
4.5/5
of Upwork by G2 peer reviewers
Oleksandr L.

Split, Croatia

$35/hr
5.0
24 jobs

PMP-certified Technical Project Manager with 8 years of experience in software development and consulting, specializing in Agile delivery. Skilled at managing cross-functional teams, budgets up to $500k, and projects from ideation to production. Proven ability to align technical execution with business goals, streamline workflows, and enhance product quality. 📝 Certifications: PSM I by Scrum org; PMP by PMI; SAFe® 4 Agilist by Scaled Agile 🛠️ Project Management Software: Jira, ClickUp, MS Project, Trello, Azure DevOps 📊 PM methodologies: Agile (Scrum & Kanban), traditional (waterfall) 🎓 Education: MS in Project Management from Northeastern University (Boston, USA) 👥 Project team sizes: 3 - 15 people 📆 Project duration: 3 months to 1,5 years 💰 Project budget: $20k to $500k A couple of most notable projects that I managed, my responsibilities & key achievements: 1) Project manager for a SaaS web application that generates human motion animations using AI - Led the development of the 3-year project to the successful release on time & budget - Established the planning process for training ML models that allowed us to meet the expectations of the client for the scope and timing of the public beta release - Reorganized our processes to switch to regular monthly releases to aid with user retention and increase MRR - Interviewed and brought consultants to the team to complement our skillset in specific domains like 3D animation, SEO, Auth0 - Worked with the client to propose improvements in the UX and branding; coordinated those changes with the designer Team: 1 ML team lead, 4 ML engineers, 3 web developers, 1 designer, 1 QA engineer, 1 infrastructure engineer, 1 SEO/Marketing specialist. Achievements: Thanks to the effective product development process and close collaboration with the project sponsor, we were able to get 20+ paying customers (approx. $1000 MRR) just in one month after the public beta release. The project was managed so successfully that the client gave us a 5-star review for it. 2) Project manager for a web application for automating business workflows (Upwork project) - Set up reliable QA processes to improve product quality and reduce the time needed to fix bugs - Led the introduction of a release management process to reduce the risk of issues in the production environment after releases - Defined and documented team member roles and responsibilities to prevent interpersonal conflicts within the project team - Collected requirements and documented expectations for epics and tasks, helping developers save time and avoid reworking functionality - Coached the team on continuous improvement, introducing weekly sprint retrospectives to enhance our work processes - Created UI/UX design mockups to eliminate frequent meetings with the designers to discuss expectations for the design they create Team: 1 product owner, 1 tech lead, 5 developers, 2 designers, 1 QA engineer, 1 infrastructure engineer/release manager. Achievements: We were able to set up reliable QA and release schedule that freed up time of the project sponsor and led to higher volume of acquired customers. Number of bugs on production decreased by about 80%. As a project manager, I got a 5-star feedback from the client for my work. Here's the review: Project Manager for Application Development Rating is 5.0 out of 5.0 ⭐⭐⭐⭐⭐ Aug 25, 2024 - Oct 8, 2024 "Thank you, Oleksandr, for stepping in as project manager during a crucial time. Despite the short term, your professionalism and leadership ensured seamless progress during the absence of an employee. Your contribution was invaluable, and I look forward to working with you again!" Keywords: project manager construction project manager clickup project manager marketing project manager ecommerce project manager virtual assistant executive assistant operations manager business analyst Skills: Project Management Agile Project Management Project Scheduling Scrum Project Plans Project Timelines Project Management Professional Project Management Software Project Workflows Management Skills Project Delivery Project Budget Stakeholder Management Jira Administrative Support Product Management Business Analysis Team Management Change Management Microsoft Excel Microsoft Project

  • Project Management
  • Agile Project Management
  • Project Scheduling
  • Scrum
  • Project Plans
  • Project Timelines
  • Project Management Professional
  • Project Management Software
  • Project Workflows
  • Management Skills
  • Project Delivery
  • Project Budget
  • Stakeholder Management
  • Administrative Support
  • Product Management
  • Business Analysis
  • Team Management
  • Change Management
  • Microsoft Excel
  • Jira
Neven D.

Zagreb, Croatia

$70/hr
5.0
23 jobs

👋 Hello! 👉 I'm an experienced Software Developer with over 10 years of experience. 👉 You can expect quick turnaround, timely updates about your project with full transparency ✅ Top Rated | 100% Job Success Score ✅ I'm quite flexible and easy to work with 👉 You can hire me as solo freelancer. 👉 If you have an existing team in-house or a team of freelancers I have no problem jumping in quickly learning the ropes and becoming a part of a team. 👉 Also I am able to assemble a team fast to expedite the project according to your specific needs. ✅ I can help you with 👇👇👇 👉 Mobile App Development Flutter, React Native (Expo and React Native CLI) Help with Apple and Google app publishing process on their respective app stores 👉 Web App Development (Frontend, Backend) JavaScript, TypeScript, React, Vue, NextJS, NodeJS, PHP, Laravel Tailwind, Bootstrap, CSS, HTML MySQL, PostgreSQL, MongoDB, Firebase, SupaBase WebSockets, WebRTC, APIs 👉 Artificial Intelligence (AI) Development & Integration OpenAI GPT-4, Anthropic Claude, Google Gemini, LLaMA, Mistral, Gemma, LangChain, LlamaIndex, Transformers QLoRA, RAG, Prompt Engineering Stable Diffusion, Whisper, LLaVA 👉 Cloud & DevOps AWS, Azure, Google Cloud Platform, Heroku, Vercel, Digital Ocean Application Deployment, Domain Setup, Infrastructure Setup, Git & Pipelines 👉 CMS: Wordpress, WooCommerce, Shopify, Strapi Custom Plugin Development, Shop setup, 3rd party integrations, payment gateway setups, theme modifications Automations, AI integrations, Migrations 👉 Project Management / Engineering management Running a project for you, writing technical specification for developers, leading a team ✅ I'm confident that I can help you out and if you think my skillset solves your problem, go ahead and message me. I'm happy to help even if we don't end up working together. Cheers, Neven

  • Software Development
  • MySQL
  • MongoDB
  • Laravel
  • JavaScript
  • React
  • PHP
  • Node.js
  • PostgreSQL
  • Web Development
  • HTML
  • Next.js
  • React Native
  • Software Architecture
  • Mobile App Development
Mateus M.

Koprivnica, Croatia

$15/hr
5.0
17 jobs

I am a Software Developer with a Bachelor's degree in Business Informatics from the Faculty of Organization and Informatics, University of Zagreb. My primary focus is backend and application development for web, mobile, and software platforms. I have experience building applications using technologies such as Node.js, TypeScript, C#, .NET, Kotlin, SQL databases, and REST APIs. I develop web applications, backend systems, mobile applications, and software tools while focusing on clean architecture, maintainable code, and reliable application logic. My development background allows me to understand both the technical implementation and the user experience side of software products. In addition to development, I also provide manual QA testing and usability validation for web and mobile applications. Because of my technical background, I approach testing from a developer’s perspective and can identify not only visible UI bugs but also potential logic issues, backend problems, or API-related errors. My QA work includes: • Mobile app testing (Android / iOS) • Web application testing • AI conversational system testing • Functional and usability testing • Writing detailed bug reports with reproduction steps • Verifying bug fixes and validating application flows I regularly collaborate with development teams and create structured issues using tools such as GitHub Issues, Jira, Trello, Notion, and Slack. I am familiar with modern development workflows including GitFlow methodology, which allows me to communicate issues clearly and efficiently with engineers. Technical stack: • Node.js / Express • C# / .NET • Kotlin (Android development) • SQL databases • NoSQL databases (MongoDB) – schema design, querying and integration with backend APIs • REST APIs • Git / GitHub Alongside development and QA work, I am also open to smaller or quick tasks such as bug verification, app testing, usability testing, and technical support tasks. I am reliable, detail-oriented, and focused on delivering accurate and high-quality results. If you need a developer who understands both software development and quality assurance, I would be happy to help.

  • Software Development
  • Back-End Development
  • Web Development
  • App Development
  • Node.js
  • TypeScript
  • C#
  • .NET Framework
  • Kotlin
  • PostgreSQL
  • MongoDB
  • SQL
  • REST API
  • API Development
  • QA Testing
  • Manual Testing
  • Functional Testing
  • End-to-End Testing
  • Bug Fix
  • Bug Reports
Vedran O.

Zagreb, Croatia

$40/hr
5.0
129 jobs

I do my work with passion. So, I am experienced professional iOS developer with for over eight years as a freelancer. There are 20 years of software development behind me in general. On Upwork, I worked more than 2000 working hours billed in 75 projects best rated. Also, there are about 70+ projects on Freelancer.com in my recent freelancer history with overall score 5.0 and very high Repeat Hire Rate. Some of my past work includes: - Audio/Video editing applications - Working time tracking system - several board games My work can be described as: "Anything less than perfect is not an option." Here are some of apps that I did develop: OfficeTime (time tracking tool) Pulp Movie Studio (Audio/Video editing/sharing app) Vintage Looks  (Audio/Video editing/sharing app) 

  • OpenCV
  • Objective-C
  • Deep Learning
  • iOS Development
  • Computer Vision
  • Core ML
  • Swift
  • Machine Learning
  • Artificial Neural Network
  • iPad App Development
  • Artificial Intelligence
Matija B.

Cakovec, Croatia

$75/hr
5.0
63 jobs

Dear returning and new clients, I wish you all a warm welcome. You are just a message, away to boost your business with: ✔️ BACKEND web development problem and issue solving, ✔️ DATABASE querying and administration, ✔️ GUARANTEED A+ code quality following industry standards, ✔️ FAST and RELIABLE delivery and communication on AGREED tasks, ✔️ A RELIABLE and TRUSTWORTHY project manager who meets the client's reasonable deadlines. I am absolutely thrilled to help and guide you in IT technical sphere the best way I know (if you have time, you can also check short intro YouTube video here on my upWork profile, Thank you). I am FULL TIME freelancer with the set of skills, outlined by my clients: ✔️ PERFECT FEEDBACK SCORE (5.0) on ALL contracts AND 100% JOB SUCCESS - for more than a decade on upWork | Elance | oDesk, ✔️ upWork's TOP RATED FREELANCER BADGE since the start of their program, ✔️ POSITIVE attitude in RESOLVING conflicts and HANDLING glitches, ✔️ LIGHTNING fast replies and communication. DEVELOPMENT rules: - I write CLEAN and TESTABLE code, - write TESTS, so I am certain it does NOT break anything (if this is clearly communicated with client, I definitely encourage it highly), - CODE must be ready to DEPLOY at ANY TIME (CURRENT version must be in a WORKING state), - ALWAYS use GIT and BRANCHING, - SEPARATE ENVIRONMENTS for production, staging and local development, - use and TRACK PROGRESS through Jira, Trello, Asana and etc. - CLEAR AND CLEAN COMMUNICATION is an absolute MUST so the DEADLINES are met. For more please be sure to check feedback's, here on my profile page. Thank you in advance for dedicating your valuable time to me. --- BackEnd Web development: - PHP and frameworks - Laravel FrontEnd Web development: Jquery and Frameworks, CSS3, HTML5, Bootstrap, Vue Databases (development and administration): MySQL, MariaDB, MsSQL, PgSQL Amazon Web Services (AWS) Suite - EC2, S3, RDBMS Version control: - GIT - Bitbucket, GitHub - SVN - Tortoise SVN Linux - Ubuntu, CentOS7, Suse, Puppy - Bash Scripts - Docker -

  • JavaScript
  • PHP
  • API
  • Laravel
  • Amazon EC2
  • Web Development
  • MySQL
  • HTML
  • MySQL Programming
  • AWS CodeDeploy
  • DevOps
  • Amazon Web Services
  • SQL
  • AWS Amplify
  • GitHub
Antonio Ž.

Osijek, Croatia

$15/hr
5.0
1 jobs

Full-Stack Software Developer Full-stack software developer with professional experience building scalable, reliable, and maintainable applications using .NET and C#. I specialize in backend development, microservices architecture, cloud-native solutions, and database design, with hands-on experience using Docker, Kubernetes, SQL, and NoSQL technologies. My background includes both software development and QA engineering, giving me a strong focus on code quality, automated testing, and long-term maintainability. I have worked in Agile teams throughout the full software development lifecycle, collaborating closely with stakeholders while also successfully delivering projects independently from concept to deployment. I am proficient in .NET, C#, Python, Ruby, C, and C++, and I leverage modern AI-assisted development tools to improve productivity, accelerate delivery, and enhance code quality while maintaining full engineering oversight and adherence to industry best practices. Core Skills: .NET / C# Full-Stack & Backend Development Microservices Architecture Docker & Kubernetes REST API Development SQL & NoSQL Databases Python, Ruby, C, C++ Automated Testing & QA Agile Development I focus on delivering clean, maintainable, and high-quality software solutions that solve business problems and scale with future growth.

  • Software Development
  • Autodesk Revit
  • Software QA
  • .NET Framework
  • Python
  • Ruby
  • Docker
  • SQL
  • Telecommunications
  • AI Agent Development
  • Machine Learning
  • Cucumber
  • Testing Framework
  • C#
  • Back-End Development
  • ASP.NET
  • ASP.NET Core
  • Git
  • Linux
  • macOS

How it works

Post a job for freePost a job

Tell us what you need. Create your own job post or generate one with AI then filter talent matches.

Hire top talent fast

Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.

Collaborate easily

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

Payment simplified

Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.

Don't just take our word for it

How do I hire a Software Development Freelancer in Croatia on Upwork?

You can hire a Software Development Freelancer in Croatia on Upwork in four simple steps:

  • Create a job post tailored to your Software Development Freelancer project scope. We'll walk you through the process step by step.
  • Browse top Software Development Freelancer talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top Software Development Freelancer profiles and interview.
  • Hire the right Software Development Freelancer 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 Software Development Freelancer?

Rates charged by Software Development Freelancers 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 Software Development Freelancer in Croatia on Upwork?

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

Can I hire a Software Development Freelancer in Croatia 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 Software Development Freelancer proposals within 24 hours of posting a job description.