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Selmir · Full-stack Product Partner

I build the products founders actually launch.

SaaS platforms, AI tools, and MVPs — engineered end to end with clear scope, clean architecture, and a straight line from first version to real adoption.

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100+
Projects delivered
5+
Years building
4.9
Client rating
About Me

I help founders and teams turn ideas into reliable software.

I am Selmir, a full-stack developer focused on SaaS platforms, AI products, and MVPs. My work sits at the intersection of practical engineering and product thinking: understand the problem, choose the right scope, build cleanly, and ship something real users can trust.

Selmir

How I approach the work

I like building software that feels useful from day one. That means I ask early questions about the users, the workflows, and the parts of the product that actually move the business forward.

On the frontend, I care about clear interfaces, responsive layouts, and pages that are easy to scan. On the backend, I focus on stable APIs, data models, authentication, integrations, and code that another developer can continue without friction.

I am usually the best fit for founders and small teams that want one technical partner who can take ownership, communicate clearly, and keep pushing the product toward launch.

5+
Years Experience
50+
Projects Delivered
100%
Job Success
Top Rated+
Upwork Badge

Product-first thinking

I care about what the software is supposed to achieve, not only how it is built. Before writing code, I want to understand the customer, the business goal, and the fastest path to useful progress.

Full-stack ownership

I can move comfortably from interface details to backend architecture, database structure, integrations, and deployment. That helps teams avoid handoff friction and keep momentum.

Clear, steady delivery

My working style is direct: clear scope, frequent updates, practical decisions, and code that stays understandable after launch.

Core Tech Stack

Tools I use to build stable, modern products.

The exact stack depends on the project, but these are the tools I reach for most often when building interfaces, APIs, data layers, and deployments.

Frontend

Next.jsReact.jsTypeScriptTailwind CSS

Backend

Spring BootJavaREST APIs

Database

MongoDBPostgreSQLRedisFirebase

DevOps

DockerCI/CDGitAWSLinux

I build products that are ready for real users, not just demos.

If you need someone who can understand the product, own the implementation, and keep communication simple, that is the kind of work I enjoy most.

What I Offer

From Idea to Product,
Built End-to-End

Choose a specialized path or combine services into one full-stack execution plan for your SaaS, AI app, or startup MVP.

01

Spring Boot Development

APIs, Microservices, SaaS Backends

Scalable APIs and microservices with Java, Spring Boot, PostgreSQL, and Redis.

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02

React & Next.js Frontend

Responsive UI, Performance, SEO

High-performance, SEO-friendly interfaces built for product growth and conversion.

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03

AI Chatbots & Integrations

ChatGPT, OpenAI, RAG Workflows

Production-ready OpenAI integrations, assistants, and workflow automation.

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04

MVP Development

Fast Delivery, Lean Scope, Launch Ready

From idea to launch in weeks with a full-stack architecture ready to scale.

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100+Projects Delivered
5+Years Experience
4.9★Client Rating
Case Studies

Products built around real business problems.

A quick look at the products I built, the problems each one needed to solve, and the architecture and interface work behind them.

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Full FreelyDesk marketing website

Freelance business workspace

FreelyDesk

freelydesk.com

Unlimited projects, clients, invoices, time tracking, and clear update links in one focused workspace built for solo client work.

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Full Kupuj Domaće marketplace website

Local producer marketplace

Kupuj Domaće

kupujdomace.ba

A transparent marketplace connecting buyers with farms and households across Bosnia and Herzegovina, from the field to the delivery address.

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Scisbo Dashboard webpage screenshot

AI-powered internal workspace

Scisbo Dashboard

Private internal platform

Scisbo Dashboard combines an AI assistant, private cloud storage, Kanban boards, social connections, messaging access, and user settings in one modular platform.

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Scisbo Messaging webpage screenshot

Real-time chat application

Scisbo Messaging

Private companion application

Scisbo Messaging is a standalone real-time chat application for private DMs and group conversations, connected to Scisbo Dashboard through shared authentication, friends, and AI services.

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Upwork Experience

Trusted by clients as a
Top Rated Plus Upwork Partner

I help founders and teams ship full-stack products quickly with strong communication, reliable delivery, and production-ready code.

Outcomes over activity

I focus on measurable product progress: shipped features, stable infrastructure, and cleaner codebases your team can maintain.

Communication that removes guesswork

You get direct communication, clear milestones, and regular updates so decisions are easy and momentum stays high.

Built for long-term growth

From MVP scope to scaling architecture, I design and build with your next phase in mind.

100%
Job Success
Top 3%
Upwork Tier
50+
Projects
4.9★
Client Rating
Upwork Profile - 100% Job Success Rate and Top Rated Plus

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Profile Highlights

100% Job Success Rate
Top Rated Plus Status
Top 3% of Freelancers
50+ Completed Projects

Why Teams Keep Working With Me

My Upwork success is built on consistency, speed, and ownership from first discussion to final delivery.

Clear Communication

Regular updates and prompt responses

Fast Delivery

Efficient development without compromising quality

Reliable Support

Ongoing maintenance and optimization

Testimonials

What clients say after working with me.

Real feedback from founders and teams I helped with backend engineering, frontend delivery, and full-stack product development.

"By far one other best full stack custom software developers I have worked with! Wholeheartedly recommend!"

Seth B.

Scisbo

"Working with Selmir has been nothing short of amazing. Very clear communication from the start, Selmir is very patient and made sure everything was in order for each milestone."

Guillaume Hucheloup

Momentum Research Limited

"It was a pleasure to work with Selmir. He helped figure out all of the detail that project needed and built a great functional prototype that has been extremely useful."

Graham Shillington

Founder

Next Mind

"He done a fantastic job in just two days. It was a pleasure working with him."

Jay Siddik

CEO

Byte

"Selmir is a stellar freelancer. I would recommend him to anyone. Serious, reliable with great communication. A pleasure to work with him every step of the way."

Guillaume Hucheloup

Momentum Research Limited

"Selmir went above and beyond what was requested of him and has been an absolute pleasure to work with. I look forward to working with him again in the future."

Conner Dunda

Satlantis Studios

Development Blog

Development Insights for
SaaS, AI, and MVP Teams

Explore my latest thoughts on full-stack development, React/Next.js, Spring Boot, and modern web development practices.

Scroll horizontally to browse recent posts.

Need Expert Development Services?

Ready to implement these best practices in your project? Let's discuss how I can help you build scalable, high-performance web applications.

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FAQ

Frequently Asked
Questions

Got questions? I've got answers. Here are some common questions about my development services and process.

I specialize in full-stack development with Next.js/React.js frontend, Spring Boot backend, MongoDB database, and Redis caching. My expertise includes modern web technologies, microservices architecture, and database optimization.

Project timelines vary depending on complexity and scope. A simple Next.js/React.js application might take 2-4 weeks, while a complex full-stack system with Spring Boot and MongoDB could take 2-6 months. I'll provide a detailed timeline during our initial consultation.

Absolutely! I'm experienced in working with legacy code, debugging existing applications, and improving performance. I can also help refactor and modernize older codebases, integrate new technologies, and optimize database queries.

My process includes requirements analysis, system architecture design, database schema planning, backend API development with Spring Boot, frontend development with Next.js/React.js, testing and integration, and deployment with ongoing support.

Yes, I offer ongoing maintenance packages that include updates, security patches, performance monitoring, database optimization, and technical support. This ensures your application continues to run smoothly and efficiently.

I use tools like Slack, email, and video calls for regular communication. I provide weekly progress updates and am always available for urgent questions or concerns about your Next.js/React.js or Spring Boot application.

Yes! I specialize in MongoDB optimization, Redis caching strategies, and database performance tuning. I can help design efficient schemas, implement proper indexing, and set up caching layers to improve your application's performance.

Yes, I work remotely with clients worldwide. I'm experienced in remote collaboration and use modern tools to ensure effective communication and project delivery regardless of location.

Contact

Start with a clear project questionnaire.

Share the essentials about your product, timing, and budget. I'll use that context to reply with practical next steps.

Project Questionnaire

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Location

Remote

Quick response

I typically respond within 24 hours with clear next steps.

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