Senior Frontend Developer

About Ascendion Ascendion is a full-service digital engineering solutions company.We make and manage software platforms and products that power growth and deliver captivating experiences to consumers and employees.Our engineering, cloud, data, experience design, and talent solution capabilities accelerate transformation and impact for enterprise clients.Headquartered in New Jersey, our workforce of 6,000+ Ascenders delivers solutions from around the globe.Ascendion is built differently to engineer the next.Ascendion | Engineering to elevate life We have a culture built on opportunity, inclusion, and a spirit of partnership.Come, change the world with us: Build the coolest tech for the world's leading brands Solve complex problems – and learn new skills Experience the power of transforming digital engineering for Fortune 500 clients Master your craft with leading training programs and hands-on experience.Experience a community of change-makersJoin a culture of high-performing innovators with endless ideas and a passion for tech.Our culture is the fabric of our company, and it is what makes us unique and diverse.The way we share ideas, learning, experiences, successes, and joy allows everyone to be their best at Ascendion.*** About the Role *** Job Title: Senior Frontend UI Developer Contract Type: Contract in Costa Rica Office model - Hybrid (2 days onsite at office location in Vila Olimpia) Roles and Responsibilities: Lead the design, development, and implementation of complex front-end applications using Angular (version 4+), ensuring high performance and responsiveness across all devices.Write clean, efficient, and maintainable code in HTML5, CSS, SCSS, TypeScript, and JavaScript (ES6), adhering to best practices and coding standards.Implement reactive programming patterns leveraging RXJS to handle asynchronous data streams and improve app responsiveness.Develop and maintain application state management solutions using Redux/NGRX, ensuring seamless state transitions and data integrity.Create and maintain comprehensive automated test suites using Jasmine and Karma to ensure feature reliability and prevent regressions.Collaborate closely with cross-functional Agile teams, participating actively in sprint planning, daily stand-ups, and retrospectives to deliver iterative value.Handle and optimize large data sets within the application, applying best practices in data binding, virtualization, and performance tuning to deliver efficient user experiences.Contribute to the development and enhancement of trading platforms, ensuring feature completeness, accuracy, and compliance with business requirements.Work hands-on with application development lifecycle activities, from requirements gathering through deployment and continuous improvement.Engage effectively with stakeholders and team members using strong interpersonal and communication skills, facilitating knowledge sharing, requirement clarification, and issue resolution.Leverage any experience with OpenFI to integrate and extend platform capabilities, delivering business value and innovation.Continuously stay updated with the latest front-end technologies and industry trends to recommend and incorporate improvements while mentoring junior developers.Qualifications: 5-7 years of experience in front-end development.Experience in building complex applications in Angular (version 4+).Experience in modern technologies like HTML5, CSS, SCSS, Typescript, JavaScript, RXJS, ES6, Redux/NGRX.Automated testing experience with Jasmine/Karma.Somebody who has been working with Large Data sets.Experience with Trading platform.Experience with Application Development.Experience with OpenFI is beneficial.Desired skills: E-Trading Knowledge Event Driven Architecture Terraform Continuous Deliver