Do you want to be part of our team of expert hackers and help with the maintenance and reporting tools? If so this is your opportunity!!
Help us transform raw data into business information intelligence.

Position Challenges

• Help with building of scalable platform to collect and process very large amounts of data (structured and unstructured)
• Assists in the design of new systems or the redesign of existing systems to meet business requirements, changing needs, or newer technology
• Work closely with your manager across an array of various teams and organizations in the company

Requirements

• Solid knowledge of at least one mainstream programming language: Java, python, PHP, ruby, perl, C++
• Knowledge of object-orientation and web technologies (HTML, CSS, Javascript, HTTP);
• Experience with databases;
• Know your way around UNIX/Linux operating system: command-line use, shell scripting, basic system administration;
• Studying computer science, software engineering, or computing-related subject;
• Fluent English

Bonus

• PHP, Python, Shell-scripting, Map-Reduce - Hadoop, web-programming, jQuery or similar, OLAP, data warehouses, MySQL, NoSQL - Apache Cassandra / Redis.

Start date: ASAP
Location:  Barcelona
Offer: We offer creative freedom, as well as fun work environment with a fruit stocked kitchen and more

Your personal information will be incorporated in a file created and managed by Yuilop, S.L. with registered office at C/ París Nº 207 3º 1ª 08008 Barcelona, Spain, Fiscal Number B65377665. The file has been notified to the Spanish Data Protection Authority. We will use your data to assess your application of enrollment in Yuilop. You can exercise your access, modification, cancellation and opposition rights by sending your request to privacy@yuilop.com

Apply for this job

If you want to make part of the team developing our world-class, international real.time communication product and service available to the Windows Phone 7 community, here’s your opportunity.

Position Challenges

• Design: Implement Pixel Perfect UI. Smooth and responsive transitions. Increase the pleasure of using our Application.
• Reliability:  Bugs are not welcome. Passion for code perfection is required.
• Product:  Have Product orientation. Develop with understanding on overall understanding of the Product.
• Performance: Nobody likes a slow Product.

Requirements

• BS in computer science or equivalent. MS or PhD is a plus
• Strong C# programming and debugging skills

Bonus

• Experience with Native WP7 Interface
• XMPP Experience
• Network Debugging TCP and UDP

Include an answer to the following challenge with your resume

Build a WP7 Application that fetch your phone contacts and let you assign gestures to 4 contacts of your choice. After the contacts are selected they can be quickly retrieved through the selected gesture. The selected contacts and gestures must be saved and automatically loaded upon Application start.

Gesture Examples:

• Spin Clockwise
• Spin Counter Clockwise
• 3 Finger Scroll Left
• 3 Finger Scroll Right

It should scroll smoothly and look beautiful. Bonus points for readable code, best user experience and attention to detail.

Start date: ASAP
Location: Murcia (preferred) or Barcelona
Offer: We offer creative freedom, competitive salary including employee stock option program, as well as fun work environment with a fruit stocked kitchen and more

Your personal information will be incorporated in a file created and managed by Yuilop, S.L. with registered office at C/ París Nº 207 3º 1ª 08008 Barcelona, Spain, Fiscal Number B65377665. The file has been notified to the Spanish Data Protection Authority. We will use your data to assess your application of enrollment in Yuilop. You can exercise your access, modification, cancellation and opposition rights by sending your request to privacy@yuilop.com

Apply for this job

You will be the voice of yuilop – the important social glue between our revolutionary product and the end-customer!

Your objective is to build awareness the yuilop brand and story among key audiences including users, partners, press and other industry influencers.
You ensure yuilop receives coverage in the Europe (UK, Germany, Spain, etc.), US and LatAm for our free communication service, as well as our story and vision.

What you’ll do:

• Design, develop, and execute our Communications  strategy
• Build awareness of yuilop and shape and maintain our public image by creating a unique wording and story
• Write, review and compile media materials (i.e. press releases, corporate material)
• Coordinate and answer media requests
• Find smart ways to „spread the word“ about yuilop (viral, mouth-to-mouth, etc.)
• Help with marketing by writing and editing newsletters, website content and announcements
• Work closely with CEO & CSO, though having project-ownership & responsibility
• take care of communication with yuilop and share what’s happening at yuilop with the world

What we look for:

• 4+ years working experiences as a Blogger ,editorial staff, writer with community management experience
• Bachelor or Graduate studies in: Journalism, Media Studies, Communications, English or Marketing.
• Perfect ability to operate in the social media „milky-way“…. We’re looking for a media junkies with personal expertise from among these channels
• Passion for Social Media, PR, Networking, Blogging.
• High level of general knowledge of the mobile and internet industry.
• Superior knowledge of and experience with all relevant social media tools.
• Working experience with WordPress.
• Close to Native English
• Ability to work both independently and as a team player, while recognizing the nature of a fast-growing startup.
• A network within the mobile and internet industry is a plus.

Your personal information will be incorporated in a file created and managed by Yuilop, S.L. with registered office at C/ París Nº 207 3º 1ª 08008 Barcelona, Spain, Fiscal Number B65377665. The file has been notified to the Spanish Data Protection Authority. We will use your data to assess your application of enrollment in Yuilop. You can exercise your access, modification, cancellation and opposition rights by sending your request to privacy@yuilop.com

yuilop is looking for an experienced DBA to be part of our tech tribe!

If you want to be part of our data group are looking for a challenging environment and like to be surrounded by the best talent , this offer has your name!

Job Responsibilities

• you will be responsible for the implementation, deployment and development of our database.
• you will ensure the fine optimization and performance tuning
• you will develop automatic tools to control the maintenance of our datawarehousing

Job Requirements

• At least 5 years of experience as MySQL DBA
• Proficient with database performance strategies
• Knowledge of TCP/IP Tuning
• Problem solver “Can Do” approach
• Fluent English
• Experience with Key Value Databases

Bonus Points

• You have experience with telecom/messaging Back-ends
• You are a contributor to open source projects and like “hacker culture” .

Start date: ASAP
Location: Barcelona or Murcia
Offer: We offer creative freedom, competitive salary including employee stock option program, as well as fun work environment in Barcelona city center with a fruit stocked kitchen and more

Your personal information will be incorporated in a file created and managed by Yuilop, S.L. with registered office at C/ París Nº 207 3º 1ª 08008 Barcelona, Spain, Fiscal Number B65377665. The file has been notified to the Spanish Data Protection Authority. We will use your data to assess your application of enrollment in Yuilop. You can exercise your access, modification, cancellation and opposition rights by sending your request to privacy@yuilop.com

Apply for this job

yuilop is looking for a Principal VoIP Software Engineer, that will coordinate the creation of a ground breaking Voice Over IP (VoIP) mobile service.

We are a team of engineers involved in the development of a revolutionary mobile product and if you like to work surrounded of innovation and determination you should join us!

Job Responsibilities

• 3-6 years proven domain expertise in developing software of Voice related technologies .
• Communication skills in working and driving discussions with teams, both engineering and marketing.
• Java application software development knowledge
• Demonstrated system and solution level focus while owning and understanding few product components/features

Job Requirements

• BS in Telecomunication or Computer Information Systems, or equivalent. MS or PhD is a plus
• Knowledge of VoIP Protocols SIP, RTP and SRTP
• Knowledge of TCP/IP – UDP/IP and experience with network programming
• Experience building and scaling distributed, highly available systems

Bonus Points
You are a contributor to open source projects and like “hacker culture”

Fast & Functions Challenge (Java or Erlang)

Write code that implements the described functions to be executed as fast as possible:

• Build a function that given a list of Integers in the range [-65000,65000], the function

returns true if any subset of the list summed is equal to zero. False otherwise.

Example:

■ [0, 1, 2, -3] returns true. As 1+2+(-3)==0.

■ [1, 2, 3, -8] returns false. As no subset summed is equal 0.

■ [1, 4, 5, 2, -3] returns true.

• Build a function that given a list of Integers pairs in the range [-65000,65000], that represents {X, Y} Coordinates in a Plane. The function returns the two closest pairs.

○ Example:

■ [{0,0}, {1,20}, {5, 2}] returns [{0,0}, {5, 2}]

■ [{-10,10}, {1,5}, {4, 3}] returns [{1,5}, {4, 3}]

Start date: ASAP
Location: Barcelona – First Mobile World Capital!
Offer: We offer creative freedom, competitive salary including employee stock option program, as well as fun work environment in Barcelona city center with a fruit stocked kitchen and more.

Your personal information will be incorporated in a file created and managed by Yuilop, S.L. with registered office at C/ París Nº 207 3º 1ª 08008 Barcelona, Spain, Fiscal Number B65377665. The file has been notified to the Spanish Data Protection Authority. We will use your data to assess your application of enrollment in Yuilop. You can exercise your access, modification, cancellation and opposition rights by sending your request to privacy@yuilop.com

Apply for this job

If you are passionate over new technologies and spend most of your time developing code you should join us!

We are a team of engineers involved in the development of a revolutionary mobile product.

Job Responsibilities

• 2-4 years proven domain expertise in developing software of Voice related technologies - VoIP.
• Communication skills in working and driving discussions with teams, both engineering and marketing.
• Very Good Java application software development  knowledge
• Demonstrated system and solution level focus while owning and understanding few product components/features

Job Requirements

• BS in Telecomunication or Computer Information Systems, or equivalent. MS or PhD is a plus
• Knowledge of VoIP Protocols SIP, RTP and SRTP
• Knowledge of TCP/IP – UDP/IP and experience with network programming
• Experience building and scaling distributed, highly available systems

Bonus Points
You are a contributor to open source projects and like “hacker culture”

Fast & Functions Challenge (Java or Erlang)

Write code that implements the described functions to be executed as fast as possible:

• Build a function that given a list of Integers in the range [-65000,65000], the function

returns true if any subset of the list summed is equal to zero. False otherwise.

Example:

■ [0, 1, 2, -3] returns true. As 1+2+(-3)==0.

■ [1, 2, 3, -8] returns false. As no subset summed is equal 0.

■ [1, 4, 5, 2, -3] returns true.

• Build a function that given a list of Integers pairs in the range [-65000,65000], that represents {X, Y} Coordinates in a Plane. The function returns the two closest pairs.

○ Example:

■ [{0,0}, {1,20}, {5, 2}] returns [{0,0}, {5, 2}]

■ [{-10,10}, {1,5}, {4, 3}] returns [{1,5}, {4, 3}]

Start date: ASAP
Location: Barcelona – First Mobile World Capital!
Offer: We offer creative freedom, competitive salary including employee stock option program, as well as fun work environment in Barcelona city center with a fruit stocked kitchen and more.

Your personal information will be incorporated in a file created and managed by Yuilop, S.L. with registered office at C/ París Nº 207 3º 1ª 08008 Barcelona, Spain, Fiscal Number B65377665. The file has been notified to the Spanish Data Protection Authority. We will use your data to assess your application of enrollment in Yuilop. You can exercise your access, modification, cancellation and opposition rights by sending your request to privacy@yuilop.com

Apply for this job

yuilop is looking for a Junior Web Designer that is a creative thinker and has the ability to express concepts visually.

If you want to impact the web experience of the growing yuilop community send us your portfolio!

Key responsibilities

• Content update, campaign activities and offline materials for marketing team
• Building/managing/creating a WordPress site/pages (PHP, HTML and CSS)
• Development of visual style of our core applications, the website and mobile site

Job requirements

• 1+ years’ experience creating digital interfaces or websites,
• Solid knowledge of graphic design tools: Adobe CS Suite
• Ability to prototype quickly and iteratively in HTML/CSS/JS
• Basic knowledge of PHP knowledge
• Supreme attention to detail
• Language skills: fluent English oral and written, as well as good oral Spanish skills
• Being a team player, as well as creative, proactive and results-oriented
• Experience to quickly create product prototypes and mockup iteratively

 Bonus  

•  Mobile experience a big plus

Please send us a link to your portfolio with examples of your work and show us why you should be the one that will be part of this innovative team!

Your portfolio should include work samples that showcase your eye for perfection and a user-centered design approach.

Start date: ASAP

Location:Barcelona

Offer: We offer creative freedom as well as fun work environment in Barcelona city center with a fruit stocked kitchen and more.

Your personal information will be incorporated in a file created and managed by Yuilop, S.L. with registered office at C/ París Nº 207 3º 1ª 08008 Barcelona, Spain, Fiscal Number B65377665. The file has been notified to the Spanish Data Protection Authority. We will use your data to assess your application of enrollment in Yuilop. You can exercise your access, modification, cancellation and opposition rights by sending your request to privacy@yuilop.com

Apply for this job

yuilop is looking for a  Technical QA   to join its growing team of tech wizards that are creating a ground breaking Voice Over IP (VOIP) mobile service.

Do you like challenging tasks? Then this offer has your name on it!

Job Responsibilities

• Test planning, design, and implementation
• Providing test advice to developers
• Teaming up with developers to create automated  test suites
• Supporting continuous deployment systems

Minimum Job Qualifications

• Experience in at least one scripting language (bash, lua, python, etc).
• Extensive experience on Linux platforms.
• Excellent communication skills.
• Experience with Mobile Platforms iOS and Android

Preferred Job Qualifications

• 3+ years of test automation experience.
• A BSc in Computer Science, Telecommunications or Electronic Engineering or
• equivalent.
• Working knowledge of SQL
• XMPP Knowledge is a plus

Challenge: Sanity Bot

Create an XMPP Bot using the language of your preference that test a list of

external components availability using XEP-0199.

The checks SHOULD be performed periodically every 5 minutes and provide a

list of which services are online with the measured latency of the responses

and a list of the components that did not replied within 5 seconds.

The bot SHOULD be able to login in the XMPP Server using a regular JID and

password.

The bot SHOULD alert if the XMPP Server is not available or not accepting

login.

Please send the answer to this challenge with your application … we only

consider applications/CVs with completed challenge! we assure you, you’ll

get a response from us!

Start date: ASAP

Location: Barcelona or Murcia, Spain

Offer: We offer creative freedom, competitive salary including employee stock option program, as well as fun work environment in Barcelona city center with a fruit stocked kitchen and more

Your personal information will be incorporated in a file created and managed by Yuilop, S.L. with registered office at C/ París Nº 207 3º 1ª 08008 Barcelona, Spain, Fiscal Number B65377665. The file has been notified to the Spanish Data Protection Authority. We will use your data to assess your application of enrollment in Yuilop. You can exercise your access, modification, cancellation and opposition rights by sending your request to privacy@yuilop.com

If you are  passionate for negotiations, understand the ins and outs of the telecommunication carriers, and like challenges …. become yuilop´s ICX/Interconnection Junior Coordinator !

Job Responsibilities

• Help with the coordination of the interconnection of voice and SMS in yuilop by optimizing interconnection agreements (quality and price)
• You will be responsible for negotiating agreements with carriers and of the daily management of the interconnect agreements.
• Stay always up-to-date with the emerging changes in regulatory and technology
• Help with the disputes, claims and complaints with respect to the contracts
• Help develop an analysis /comparison of prices and quality of the different networks/carriers
• Help with the desition on optimal routing and the overall P&L of SMS and voice interconnection

Job Requirements

• Fluent English
• BS in Telecommunication or Business Studies
• Voice and SMS knowledge

Start date: ASAP
Location: Barcelona
Offer: We offer creative freedom, professional growth, competitive salary plus bonus, as well as fun work environment as part of a young and very talented team in Barcelona city centre with a fruit stocked kitchen and more

Your personal information will be incorporated in a file created and managed by Yuilop, S.L. with registered office at C/ París Nº 207 3º 1ª 08008 Barcelona, Spain, Fiscal Number B65377665. The file has been notified to the Spanish Data Protection Authority. We will use your data to assess your application of enrollment in Yuilop. You can exercise your access, modification, cancellation and opposition rights by sending your request to privacy@yuilop.com

Currently we’re specifically looking to fill the following positions - if you’re ready to take the challenge and change the world of communication,
please send us your application!

Software Development

• Web App Developer (HTML5 / Javascript)
• Software Engineer - Windows Phone 7
• Technical QA & Testing for Mobile App Development
• VoIP - Lead Server Engineer
• VoIP - Server Engineer 
• Lead Server Core Developer (Java/Erlang)
• Server Core Developer (Java /Erlang) 
• Quality Assurance Engineer