Siddharth Kashiramka joined Amazon in 2022 as a product manager for AI projects.Looking back, he thought his rsum highlighted his impact but he would not write in the third-person now.And he would stick to one page, the standard recommended rsum length.Siddharth Kashiramka was six years into his post-Masters career when he began considering his next move.He worked as a product manager at Capital One and was previously a consultant at PwC. Some of his colleagues had gone to Amazon, but he didn't want to uproot his life from Virginia to Seattle. Then he was approached to work with artificial intelligence at Amazon no move required.To prepare for his interview, Kashiramka networked with contacts who had made a similar transition and spent a month practicing for interviews, doing mock sessions on a career service platform.After several rounds of interviews, Kashiramka landed a product management role at Amazon in 2022. The role came with about $300,000 in annual compensation, a mix of base salary and stock options.As a hiring manager, Kashiramka said that while rsums are a small part of the overall hiring process, they can still be an important decision-making tool."I remember an instance where there were two equally good candidates for a position. Both of them cleared the final round of interviews, but the offer had to be given to only one," Kashiramka said. "Ultimately, the decision hinged on the candidate with the most polished rsum."Here is the rsum he used to apply to Amazon and other Big Tech companies. It wasn't perfect he told Business Insider he would change three major components.Looking back on the rsum, he said three things work well:1. Talk about impact: He gives a high-level description of past roles, followed by his work and its impact.2. Summarize: "The summary is very unique to me," he said. "You can't copy-paste it to someone else." In the future, he would also add a short section talking about his external mentorship efforts and academic journal contributions, which he has been doing more actively since 2022.3. Show variety: Throughout the rsum, Kashiramka used a range of keywords, including "leveraged," "delivered," "established," and "collaborated." "Unintentionally this also optimizes for the ATS systems as well," he said about the application tracking systems that digitally parse rsums for keywords.What he would changeWhile the rsum got him interviews at Meta, Amazon, and Google, there are still a few things he would change moving forward:1. One page rsum: "I think the rsum should be one page," he said about keeping the document short. "That was a big red flag for me here in this rsum." Kashiramka added that his rsums for PwC and Capital One, where he worked before Amazon, were both one page, and he would return to that length in the future.2. Use first-person voice: Kashiramka said another mistake was writing about himself in the third person because it sounds less personal. "It seems very pompous, to be honest," he said. "I'm like: 'Who am I talking about here?'"3. Attention to detail: "I have made a few grammatical mistakes in this," he said. He recommends using a proofreading tool and getting another set of human eyes on the document.Kashiramka said that while there were grammatical errors, he was careful to be consistent in formatting, such as not using periods anywhere.Kashiramka is a senior product manager at Amazon's office in Crystal City,Virginia. Business Insider has verified his employment history and compensation.