Senior JavaScript Developer

We are seeking a talented developer with advanced expertise in asynchronous JavaScript and hands-on experience with OpenFin APIs to build high-performance desktop applications for the financial sector. The ideal candidate will also possess a strong understanding of FDC3 standards to enable secure and standardized interoperability between financial applications.Please note that the role requires working from the office 3 days per week.ResponsibilitiesDevelop and maintain high-performance desktop applications using JavaScript, focusing on asynchronous programming paradigms (Promises, async/await, event-driven and messaging architectures)Utilize OpenFin APIs to create, manage, and optimize application windows, inter-application messaging, and custom integrationsImplement FDC3 protocols to ensure secure and standardized communication between financial applicationsDebug, profile, and optimize applications for performance in complex, real-time environmentsCollaborate with team members to arrange in-office days and hours flexibly, based on project needs and meetingsRequirementsAdvanced proficiency in JavaScript, with a strong focus on asynchronous programming and 3+ years of relevant experienceHands-on experience with OpenFin APIs for desktop application developmentSolid understanding of FDC3 standards and protocols for financial app interoperabilityBackground in ReactJSStrong debugging and performance optimization skills in real-time, complex environmentsGood work ethic and strong sense of ownership of the end resultExcellent verbal and written communication skills, B2 level of EnglishWe offer/BenefitsWe gather like-minded people:Engineering community of industry professionalsFriendly team and enjoyable working environmentFlexible schedule and opportunity to work remotely within PolandChance to work abroad for up to 60 days annuallyBusiness-driven relocation opportunitiesWe provide growth opportunities:Outstanding career roadmapLeadership development, career advising, soft skills, and well-being programsCertification (GCP, Azure, AWS)Unlimited access to LinkedIn Learning, Get Abstract, Cloud GuruEnglish classesWe cover it all:Stable income (Employment Contract or B2B)Participation in the Employee Stock Purchase PlanBenefits package (health insurance, multisport, shopping vouchers)Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and moreReferral bonusesCorporate, social and well-being eventsPlease, note:The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview.We will reach out to selected candidates exclusively.EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.