Senior Blockchain Software Engineer

Fundació i2cat; Barcelona; Híbrido; EUR 40.000 - 60.000; Jornada completa

Descripción de la vacante

A non-profit research and innovation center in Barcelona is seeking a Blockchain Expert to join its research team. The ideal candidate will work on decentralized technologies and cryptography, contributing to innovative solutions in various domains such as 5G networks and cybersecurity. A minimum of 3 years of experience with blockchain projects is required. The position offers a flexible work schedule and various benefits.

Servicios

Flexible work schedule

27 days annual leave

Optional benefits like restaurant vouchers

Company social events

Formación

• 3 years of experience in open-source projects related to blockchain.
• Experience with W3C Verifiable Credentials and DID recommendations.
• Demonstrable knowledge of smart contracts using Solidity.

Responsabilidades

• Develop solutions based on decentralized technologies.
• Collaborate with the blockchain innovation team on digital identity management.
• Contribute to enhancing solutions for various technological domains.

Conocimientos

Open-source projects

Blockchain

Cryptography

Smart contracts

Decentralized systems

Public key cryptography

Linux system administration

Programming languages

Educación

Bachelor's degree in relevant field

Herramientas

Docker

PostgreSQL

Java

Python

JavaScript

Descripción del empleo

Overview

The Cybersecurity-Blockchain area of the i2CAT Foundation is seeking a blockchain expert to join its research and innovation group in DLT-Blockchain Technologies. The position will focus on working within the blockchain research team to carry out tasks related to the development of solutions based on decentralized technologies and advanced cryptography. You will contribute to developing new tools and solutions that integrate the inherent functionalities and capabilities of blockchain technology and advanced cryptography to enhance solutions in other technological domains such as 5G & 6G networks, Cybersecurity, Artificial Intelligence, DataSpaces, as well as applications for the management of commons. You will collaborate with the blockchain innovation team to create synergies and apply research results in areas such as digital identity management and control (Self-Sovereign Identity - SSI and Verifiable Credentials), privacy-enhancing technologies (PET) using zero-knowledge proofs (ZKP), verifiable computing, and proxy re-encryption.

Who we are : The i2CAT Foundation is a non-profit research and innovation center that promotes mission-driven R&D activities on advanced Internet architectures, applications, and services. More than 15 years of international research define our expertise in the fields of 5G, IoT, VR, and Immersive Technologies, Cybersecurity, Blockchain, AI, and Digital Social Innovation. The center partners with companies, public administration, academia, and end-users to leverage this knowledge in order to meet real social and business challenges.

The greatest value of i2CAT is the talent of the people who make up our human team. We enjoy a team of people from more than 13 different nationalities and work every day to create and foster a work environment where we all feel comfortable creating, innovating and growing.

Want to know more? Visit our webpage! www.i2cat.net

What will you enjoy?

• Work from our offices or from home, whichever works best for you. We only ask for one day in person at the office to coordinate with the rest of the team.
• This is a full-time vacancy.
• We have a flexible work schedule respecting your work-life balance.
• Reduced working hours on Fridays and in July and August.
• Fix + variable salary based on objectives.
• You decide whether you prefer to receive your salary in 12 or 14 payments.
• Optional benefits: Configure your salary according to your needs. We offer restaurant vouchers, public transport vouchers, nursery services, and medical insurance.
• Annual leave of 27 working days.
• If you are interested, you can participate in events of your sector.
• You will work with a laptop. You can choose your operative system, Mac, Linux or Windows.
• Company social and team-building events (virtual & in-person).
• You can develop your own and personal training programme with our support.
• We will work so that you have a career plan to promote your growth and development.

Where will you do it?

At i2CAT we already have an established ‘work-from-home’ policy for some time. You can work from home or from the office, whichever suits you best. We expect that you attend the office one day per week to stay connected with your team and to engage with other colleagues.

If you decide to come to the office, we are located in Zona Universitària, next to the Campus Nord of the UPC, within a multidisciplinary and multicultural environment. It is a very well-connected area (metro, tram, bus) with bars and restaurants around.

Our offices are designed with an open-office concept where everything is light and transparency. We have a variety of workspaces so that you don\'t have to be at the same table all day.

Equality, Diversity and Inclusion

i2CAT was granted the "HR Excellence in Research" award by the European Commission in 2018, recognizing our commitment to aligning HR practices with the European Charter for Researchers and the Code of Conduct. As part of the HRS4R strategy, we ensure Open, Transparent, and Merit-based Recruitment (OTM-R) in all selection processes. Diversity is key to progress and innovation, and at the i2CAT Foundation, we actively work to create an inclusive and equitable environment where everyone can develop their full potential. That’s why we are committed to plurality and aim to increase the number of people with functional diversity within our team. We seek talented individuals with diverse perspectives to enrich our team. In our selection processes, we are committed to promoting female talent and are particularly interested in the experience of women and other underrepresented groups in the scientific and technological fields. If candidates have similar qualifications, priority will be given to those belonging to one of these groups. We know that talent manifests in many different ways, and we are eager to discover new perspectives!

If what you’ve read sounds good to you... let’s have a coffee, and we’ll tell you more! As part of the recruitment team, I would be happy to meet you, hear about your experience, and see how you could fit into our team. And if you liked it but this isn’t the right opportunity for you, maybe you know someone who would be a perfect fit and whom you’d like to recommend!

Minimum requirements

Experience working in open-source projects, blockchain, cryptography, smart contracts, decentralized systems, or any technology related to the web3 ecosystem. 3 years of experience. Demonstrable experience in the following areas:

• W3C Verifiable Credentials and DID recommendations
• Public key cryptography (ECDSA / Ed25519, etc.)
• Symmetric cryptography
• Blockchain / DLT timestamping
• Smart Contracts (Solidity)
• OAuth / OpenID Connect
• Linux system administration
• TCP / IP
• Programming languages : Java / Python , JavaScript (Node.js + Browser)
• Stack : Docker, PostgreSQL, Frontend frameworks

Nice to have

Knowledge of ZKP and proxy re-encryption; Knowledge of C and Rust; Asynchronous app development (Apache / Kafka or similar).

Submission documents

Candidates applying are required to submit the following documents:

• Motivation letter – Mandatory (if not attached directly, send it to [e-mail])
• CV (blind CVs are accepted) – Mandatory
• Degree certificates – Optional (if not attached directly, send it to [e-mail])