Senior C++ cross-platform (mobile & desktop) engineer with 13 years of experience. Proficient in low-level Android Linux development (HAL, AOSP, Linux kernel), driver int...
Backend Developer | Full-Stack Developer
Experienced in building production-ready systems from concept to deployment. Hands-on experience working with Python, FastAPI, ...
Graphic Designer 360º & Web Developer based in Barcelona.
I bring a 360º vision from design to development, creating cohesive brands and well-crafted digital experienc...
Hi there! I'm Eduardo Ladrón de Guevara, a passionate Full Stack Developer based in Barcelona. I enjoy building scalable web applications with React.js on the frontend an...
I consider myself a calm and cheerful person.
I have led development teams on critical projects, managing both the technical design and the implementation of robust an...
Hi, I’m Josep Romero Ros, a full‑stack engineer with a track record of delivering scalable web apps and marketplace platforms for B2B and fintech. I’ve driven migrations,...
Hi, I'm Pascual Fort, a versatile Full Stack Developer based in Barcelona, Spain. I started coding when I was 13 and I can build mobile apps, desktop apps, games, website...
Hi, I’m Javier Torrús Galindo, a senior software engineer specializing in mobile, XR, and Web3 solutions. Over the past several years I’ve planned, architected, and deliv...
I am a IT professional with a track record of leading technology projects in multi-company environments, designing and building tailored business applications, particular...
Frontend-focused Full-Stack Developer with 6+ years of experience.
Strong skills in React (TypeScript), Django (Python), Postgres, InfluxDB
Passionate about intuitive...
"Pet e Life is a full-stack web application designed to connect pet owners with veterinary services, pet shops, and essential pet care resources. The platform aims to simplify pet management by offering appointment scheduling, service listings, and personalized pet profiles in a centralized digital environment.
The..."
"Pet e Life is a full-stack web application designed to connect pet owners with veterinary services, pet shops, and essential pet care resources. The platform aims to simplify pet management by offering appointment scheduling, service listings, and personalized pet profiles in a centralized digital environment.
The project is currently in development and focuses on delivering a modern, responsive user experience combined with a secure and scalable backend architecture.
Key features planned for the platform include user authentication, pet profile management, service booking, and real-time notifications. The system will follow RESTful API standards and clean architecture principles to ensure maintainability and performance.
Pet e Life is being developed as a portfolio and production-ready project to demonstrate strong front-end and back-end engineering practices."
"Working with Ondrej was one of the best technical decisions we made for our product. From the very beginning, he demonstrated not only strong engineering skills but also true ownership and care for the success of our platform. He quickly understood our business requirements, proposed practical architectural improvements,..."
"Working with Ondrej was one of the best technical decisions we made for our product. From the very beginning, he demonstrated not only strong engineering skills but also true ownership and care for the success of our platform. He quickly understood our business requirements, proposed practical architectural improvements, and delivered clean, scalable, and production-ready code.
What impressed me most was his reliability and problem-solving mindset. When we faced performance bottlenecks and complex integration challenges, Ondrej approached them calmly and systematically, identified the root causes, and implemented solutions that significantly improved system stability and response times. He communicates clearly, meets deadlines consistently, and collaborates naturally with both technical and non-technical stakeholders.
Beyond his technical strengths, Ondrej brings a professional attitude and a genuine commitment to quality. He doesn’t just complete tasks — he improves the overall system and elevates the team’s standards. I would confidently recommend him to any company looking for a senior engineer who can be trusted with critical systems and deliver real, measurable impact"
"While on the ES team, in discussions, Lucas would provide insightful and critical solutions to the problems faced by the company. These solutions required the out of the box thinking that Lucas possesses to tackle such multifaceted problems."
Vikram @ The Nationwide Group
Feb 18, 2026
"Achla was great to work with. They really listened to my needs and all work was delivered on time."
Jasspreet @ jassi photography
Feb 17, 2026
"Gonzalo Eloy Vazquez Dieguez was great to work with. They really listened to my needs and all work was delivered on time."
Tomo @ MedServ
Feb 13, 2026
"Mustafa is pro for website development, he rebuilt my website simple to well optimised design. Highly Recommended!"
Jack @ Hulm solutions
Feb 13, 2026
"Working with Twine enabled us to scale projects quicker than before and the Twine Business makes it so easy to manage and pay contractors over the world."
-Josh Bolland
CEO, J B Cole
"I found an amazing designer and she's fast. I now send her my ideas and she transforms them into great design. The collaboration is fast, professional and easy. It feels like she is already part of our team."
-Achim Kohli
CEO, Legal-i
Clients Rate Twine Back End Developers
4.98
/ 5.0
on average across
895
895
reviews as of March 14, 2026
Twine
Animators Freelance Services
Hire the best animators freelancers with Twine.
108 reviews
How we work
1
Post your project for free
This only takes 3-5 minutes and choose how you want your experts to contact you.
2
Matched to expert talent
Within days, we'll introduce you to the right expert for your project. Average time to match is under 24 hours.
3
Hire securely and fast
You can choose Twine to manage your payments securely or use your own payment system for free.