Thank you, David. Thank you for joining us today. Three months ago, we shared some details of what we are thinking about 2023 and how we saw the main factors and trends driving our performance during the year. As you will recall, we anticipated some level of market slowdown in general demand, but we are not certain of the impact level of this slowdown in our own portfolio yet. We also saw that some of our customers were mitigated the risk exposure due to the war in Ukraine and we are showing signs of managing those risk by [indiscernible] and work streams to some other partners. With the understanding of all of that, we were proactively investing in building scalable quality delivery locations outside of our traditional comfort zone to consistently delivering comparable engineering quality across all of our growing global delivery markets. And we also said that we were expecting to continuously optimize operations across our global delivery locations to bring the cost structure back to our traditional metrics in near and medium time frame. And despite a number of EPAM specific challenges, we believe that the market for our services continues to be strong and our proposition remains extremely relevant so we were broadly expecting a general uplift in demand going into the second half of 2023. Today, three months later, we understand that with the visibility we had in fewer quarters we underestimated the breadth of the macroeconomic slowdown and the depths of the impact, specifically in the transformational sector of the IT services market. And as you know, we always stated that our customers are almost exclusively Global 2000 enterprises leading global platform companies and venture backed emerging tech firms who rely on EPAM to design, engineering and deploy a large scale transformational and digital engineering programs. Helping them to grow and to differentiate themselves based on technology advanced solution. Our work largely supports their disruptive business model, accelerates growth and specifically targets new product data and cloud platform development and modernization programs. Such work was an ease in our focus area and represents a very significant share of our revenue, especially in comparison with most of other companies within the global IT services segment. Exactly that type of work was largely responsible for a significantly stronger growth rate during the last few decades. Unfortunately, it is exactly those programs are all currently showing visible signs of weakness. Instead, during the last three months, it become very clear that the economic environment is more focused than it has been for decades. On cost optimization, which for now benefiting more traditional outsourcing firms, with strong cost takeout offerings. We understand this is likely a continuous story as the market adjusted to the new economic conditions and the investment requirement changes. It means, this is all global and usually impact on demand and the headwinds associated with the war. We must accept the picture for EPAM is more complex than [indiscernible] and yes, visibly changed today from what we shared with you just three months ago. But before we go into what we're doing to address the immediate challenges and to share some of our more practical priorities and efforts, I want to restate our view on our mid and long term positioning in the future beyond 2023 growth perspective. Let me start with [indiscernible]. Technology change and the disruption of traditional business models was the main growth driver during the last decade. During those decades, we saw only three relatively short recessional periods for the technology sector. There is simple evidence that those companies who invested in their digital transformation during these slow periods and those who adapted to new tech and applied new business models realized by the [tech faster] (ph) versus those who just focused on straight cost cutting become the new leaders in their markets. For us each of those short downturns led to resurgence in demand for our unique retail services and consequently to our historical growth rates of 20 plus% and on very consistent long term basis. We believe that nothing changed from that trend and we are in the middle of another term when we about to adapt a new wave of technology impact. That is why we believe that the current situation is temporary and that in line with the path we will see a similar comeback pattern. Pushing companies, we strive to lead for accelerated investments in new and disruptive complex solution based on rapid adoption of new advanced technologies. With that, we also believe that we will continue to benefit from our traditional capabilities and our delivery track record and that give us the confidence that we are fundamentally better positioned for future accelerated growth than most of other market players. Those critical EPAM pillars includes: First, our continuous focus on differentiated product and platform development versus more traditional outsourcing BPO and [indiscernible] and our engineering DNA built over decades. Those make us the best partner to learn and understand and implement new solutions, which aligns in the next generation technologies. And yes, we don't do want to share with you in anticipation of the like equation that is a public adoption of generative AI and widespread use of large language models or LLMs, we already have dozens active use cases across the global network of practitioners in all our verticals and horizontal functional areas that we are actively proceeding with both internally and with our customers. Second, our investments and broad deployment of EPAM continuum integrated consulting services boost strategy and experience even closer with engineering. And together accelerating the value we can bring from investments in data, in machine learning and GenAI technology by advising on what is possible tomorrow and what can be made real today. And third, all of our customer engagements and our people are enabled by our own digital platforms, which preparing us much stronger for our plan and current capabilities of ML and AI and LLMs to drive increased work productivity and always sharing at a new global scale for us. To sum up, in our view, even with complicated macroeconomic headwinds, the market still points toward disruption and demand companies to transform again to address the challenges posed by many emerging technologies including such as Generative AI, which everyone is talking about it today. But what is difficult to predict right now is, when this come back will start at full speed. We believe that it will be happening rather sooner than later. In quarters, not in years. Still right now, we obviously have an immediate and different challenge. So let us talk about our last quarter and now thinking about the rest of 2023. With all the complexities of current environment, our performance in the first quarter was sorted. While that gives us a better start to move further into complex 2023 environment, we have to acknowledge that the combination of conditions we talked already today of general pullback and delays on transformation spent and the [indiscernible] concerns taken by our customers has now translated into a revision to our initial revenue expectation for this year. With this new view we are drafting visibly our full year revenues and EPS outlook. And during the year, expect to be thinking more about sequential growth metric versus our traditional year-over-year trends. Jason will talk about all relevant details in his section. For now, as long as we are seeing contracted buyers for new builds business, we will be adapting a three pronged approach to navigate the current environment. First, pushing all possible efforts to address our current customer's most present tactical items, including the mix of engagement models, cost takeouts and consolidation priorities, while protecting our share of wallet and long term relationships, all possibly leading to lower short term profitability metrics. Second, winning and quickly growing new business through increased focus on sales and GTM, motions and partnerships. Especially across those champions who would like to use the slow time to build a competitive advantage. Over the last two, three quarters our global business field organization and specialized practice teams have focused on developing new offerings, new engagement models and new ways of working with our customers and have done so with some success, a new momentum and new logo acquisition which will still take some time to realize as larger revenue impact down the line, especially in the current economic climate. And third, continuously investing in our strategic priorities. Which are staying in line with what we communicated before. Expansion of differentiated consulting agency [indiscernible] cloud capability is building, improving our work by delivering strategy implementation simultaneously, expanding our engineering DNA across all strategic global delivery location. All in anticipation for the sharp return on demand for the next generation transformational services. With that, as part of our continuous investment strategy, I want to share some updates on our global delivery expansion programs. During the past quarter, we have made good progress in both maintaining the level of delivery quality in Eastern and Central Europe and strengthening such quality in Central and Western Asia. We have both years benefited from integrating strong EPAM talent moving to many new locations across the regions. As part of our heritage and our core differentiation, Eastern and Central Europe delivery and most notably our Ukrainian operation will continue to be an cornerstone of our proposition. While we accelerate our investments in new center of excellence and while we continue to hire across our global footprint for high demand skills. As part of the global delivery strategy, we continue to focus on building out further our two currently fastest growing regions, India and Latin America. In addition to opening several new locations across those geographies, we are happy to see sizable work streams starting and expanding there. And now not only from our existing clients, but also with brand new logos who are attracted by the advantages demonstrated by EPAM in those regions. It's also important to mention that the configuration of our client footprint in those still relatively new for us geographies now very much represents our traditional client's mix with some of our top 10 customers, but also new ones across multiple verticals from large corporations to technology platform, firms and to software product companies. In our view, it's a very good illustration of the quality of the services we are delivering from the region, confirming that continued investments into engineering excellence programs, education and integrated delivery platforms bring the results we expected to achieve to date. Also with experience over the past few years, we are now able to stand up new locations across EPAM global footprint in months versus years, by leveraging all elements of our digital platform ecosystem, and strong talent acquisition capabilities. We believe during the next few years, we will be able to build the most geo balance delivery talent platform on the market. To conclude, we believe that while we are experiencing and addressing accordingly very specific but still temporary challenges, fundamentally, we are moving in the right direction. Our strategy for future accelerated growth is based on delivering complex business solution driven by advanced disruptive technology and quality engineering. Many of those solutions require unique alignment of consulting and implementation services and are specifically attracted to the client base consisting of leading global enterprises with markets are driven and disrupted by continuous technological transformers. We do believe that such enterprises will have to come back to significant investments into technology build component to lead and disrupt further their respective markets and they will need partners like EPAM to progress. With that, I would like to pass to Jason to share more details and numbers for Q1 and for our change in outlook for the rest of the year.