When it comes time to negotiate a compensation package, many tech pros worry about leaving money on the table. Yet in trying to secure as high a salary as possible, many neglect to lock down the benefits and perks that can account for 31 percent or more of total compensation. But more tech pros are coming around to the idea that they can ask for (and often receive) perks. Surveys show that employers are willing to throw in lucrative benefits and create one-off deals in order to attract and retain the best employees. As high demand for specialized tech talent continues unabated, it’s clear that many employers will need to offer perks in order to secure the people they need. Here’s a list of perks that tech pros have been asking for. Keep these in mind when sitting down with a candidate.