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TwinRed is a leading service provider in the digital advertising sector, offering self-service and openRTB capabilities to its clients as well as operating a well-established affiliate network. TwinRed has offices in Los Angeles, Luxembourg and Barcelona and is looking for talented and highly motivated colleagues to join their team in Barcelona. Be part of an energetic and dynamic work atmosphere, with offices in the centre of Barcelona, Diagonal. WITH US, YOU WILL BE Working with all parts of the AdTech stack, including ad delivery systems, OS and network level optimization Setting the direction of the technical development of our brand-new platform Working in public cloud environment (Linux ecosystem) Ensuring that systems are scalable and reliable to handle increased traffic and provide uninterrupted ad delivery Continuously optimizing and improving existing systems and technologies to enhance the efficiency and effectiveness of digital advertising campaigns Working collaboratively with cross-functional teams, including marketers, designers, data analysts, and product managers, to align platform development with business goals Determining causes for the most complex software issues and develop practical, efficient, and permanent technical solutions in the AdTech sector Guiding our Software Engineers to develop their skills and knowledge through the provision of advice, mentoring and training opportunities Creating and overseeing high-level KPIs for the IT department WHAT WE EXPECT FROM YOU Minimum 5 years of experience as a software developer in AdTech industry Excellent level of English In-depth knowledge of the ad-tech industry, especially ad-serving systems Experience in Golang, Scala or C would be a plus Knowledge and experience with programmatic advertising, including familiarity with demand-side platforms (DSPs), supply-side platforms (SSPs), and real-time bidding (RTB) Ability to understand and anticipate business needs and provide technical solutions accordingly IN RETURN, YOU WILL GET Private health insurance Company MacBook Brand new office Free coffee and snacks Flexible working hours Send your application to career@twinred.com
Here's how to pick the right one and stand out in your application.
144.883Jobs
31.687IN
81%EN
That number is real. WorkMundi's database shows 144,883 open engineer roles across the world. India has the most with 31,687 jobs, followed by the United States with 30,084. If you just finished reading one job ad and felt paralyzed by choice, you're not alone—but this scale is actually an advantage. It means you can afford to be selective.
Start by geography and language. The majority of engineer ads—117,837 of them—have the job posting text written in English. Use that as one filter, but remember: the ad text language tells you nothing about whether the role actually requires you to speak English day-to-day. Read the job description carefully. Then check which countries have the volume you're targeting. Singapore, Poland, and Australia round out the top five after India and the US.
Next, learn who's hiring. Accenture has posted 2,801 engineer roles. andurilindustries, speechify, and jobgether are also actively recruiting. If you're applying to one of these names, research their hiring patterns and interview style before you apply. That homework pays off.
When you interview, expect the question every engineer hears: 'Tell me about a time you had to debug a problem that wasn't in your job description.' Have a specific story ready—not a general one. Name the tools, the deadline pressure, and what you learned. Hiring managers listen for whether you see problem-solving as part of the role itself, not a favour.