19 Ofertas de Ui Developer en Costa Rica

Front-End Developer (ReactJS & JavaScript)

Location: Costa Rica (Remote or Hybrid – Preferred local candidates)

Duration: 6 to 8 Months

Project Overview:

Join a dynamic, fast-paced project team delivering enterprise-level solutions. We are seeking a skilled Front-End Developer with strong expertise in JavaScript and ReactJS, who also brings working knowledge of backend and infrastructure technologies like Java, Python, AWS, and Terraform.

Required Skills & Experience:

• 6+ years of experience in front-end development with a focus on
  JavaScript and ReactJS.
• Proficiency in HTML5, CSS3, and responsive design principles.
• Good understanding of
  RESTful APIs and web architecture.
• Experience with backend technologies like
  Java and Python (basic to intermediate).
• Familiarity with
  AWS cloud services (e.g., EC2, S3, Lambda, API Gateway).
• Exposure to infrastructure as code tools such as
  Terraform (or CloudFormation, Pulumi).
• Excellent problem-solving and communication skills.

Preferred Qualifications:

• Experience working in Agile/Scrum environments.
• Familiarity with testing frameworks like Jest, Cypress, or similar.
• Working knowledge of DevOps tools and CI/CD pipelines.

Key Responsibilities:

• Develop responsive, user-friendly web interfaces using ReactJS and modern JavaScript (ES6+).
• Collaborate with designers, backend developers, and product managers to deliver high-quality features.
• Integrate front-end components with backend services developed in Java and/or Python.
• Optimize applications for maximum speed and scalability.
• Participate in code reviews, testing, and debugging.
• Support deployment and CI/CD processes using AWS services.
• Contribute to infrastructure automation using Terraform or similar IaC tools.

Since 2008,
Flat Rock Technology
has provided a wide range of innovative and complex solutions for companies of all sizes and has grown into a reliable partner. Our company operates from several locations – London, Varna, Ruse, Burgas, Tbilisi, and now San Jose and provides software, cloud, and outsourcing services.

With more than 400 highly skilled specialists in our team, we are able to cover all phases of a solution lifecycle – from research, through implementation, to support and allow organizations to create a more cost-effective structure while focusing on their core activities.

Now, we're ready to grow even more We just opened in San Jose - and that's where you come in.

Position Overview:
We are on the lookout for a passionate and experienced Front-End Developer to join our team. If you thrive in a dynamic environment, love crafting high-quality front-end solutions, and are eager to grow with us, we'd love to hear from you.

What You'll Do:

• Develop:
  Build and maintain responsive and high-performance front-end applications that meet the needs of our clients.
• Collaborate:
  Work closely with cross-functional teams to translate requirements into well-architected solutions.
• Review:
  Conduct code reviews, provide constructive feedback, and contribute to continuous improvement.
• Document:
  Create and maintain technical documentation that supports the ongoing development process.

What We're Looking For:

• Experience:
  5+ years in front-end development, with a strong foundation in JavaScript (ES6+), HTML5, and CSS3.
• Frameworks:
  Proficiency in React and React Native is a must, proficiency in at least one additional modern front-end framework (Angular, ) is also expected.
• Expertise:
  Deep knowledge of CSS techniques, including Flexbox, animations, transitions, and media queries.
• Tools:
  Hands-on experience with CSS preprocessors (LESS, SASS, Stylus), task runners (Grunt, Gulp), and bundlers (Webpack, Rollup).
• Programming:
  Solid understanding of asynchronous programming (Ajax), JavaScript design patterns, and
• Extras:
  Experience with TypeScript, JWT, oAuth2, SPA, RESTful APIs, and Git.
• Soft Skills:
  Excellent organizational and communication skills, with a proactive, problem-solving mindset.
• Advantage:
  Previous experience in the gaming industry.

What We Offer:

• Hybrid Work:
  Flexible working options that suit your lifestyle.
• Career Growth:
  Opportunities for professional development and career advancement.
• Work-Life Balance:
  A supportive environment that values both professional and personal life.
• Engagement:
  Regular team-building events, parties, and involvement in industry events.
• Modern Workplace and international culture

If you feel your skills and experience are a match to what we are looking for please send your CV in English.

Privacy statement:

By submitting your application you agree that FRT will use your personal data for recruitment purposes only. All documents will be treated in the strictest confidentiality.

Only short-listed candidates will be invited for an interview.

We can't wait to meet you

Senior Front-End Developer

Plannatech is a B2B platform provider with innovative and leading-edge technology. We provide a selection of services to choose from, in a simple yet effective proprietary platform that has modularized components and omnichannel capabilities in a user-friendly system. We offer a completely customizable solution, ready for integration with leading providers of sports data, streaming video, virtual sports and 3rd party integrations.

About the job

At Plannatech, we are looking for a Senior Front-End Developer, you will lead the design and development of complex user interfaces for web and mobile platforms using modern front-end frameworks. You will play a key role in setting development standards, mentoring other team members, and collaborating with cross functional teams to ensure consistent, performant, and accessible user experiences. This role requires deep technical expertise, initiative, and a passion for delivering high-quality front-end solutions that align with product goals.

Responsibilities

• Design and implement scalable UI architecture.
• Lead integration of web workflows.
• Ensure cross-browser compatibility and performance.
• Mentor juniors and perform detailed code reviews.
• Work closely with product and UX teams.

Qualifications

• 5+ years of front-end experience.
• High expertise mainly in Angular framework, HTML, CSS, JavaScript, TypeScript.
• Familiar with Capacitor, Gulp, 3rd party SDKs.
• Strong and proactive ability to evaluate, learn, and adopt new programming languages, frameworks, and technologies independently to drive innovation and support technical leadership.
• Advanced soft skills including effective leadership communication, mentoring abilities, cross-team collaboration, and emotional intelligence in fast-paced environments.
• Fluent English and Agile experience.

Considered as a plus

• Experience with RabbitMQ and real-time data acquisitions.

What we offer

• Solidarist Association.
• Company doctor, psychologist, funeral plan.
• Full compliance with legal regulations.
• New benefits added monthly.
• Remote work flexibility.
• A support and inclusive work environment.
• Opportunities for professional growth and development.

Job Title: Web Developer/Front End Developer

Job Type: Contract

Years of Experience: 4+ YOE

Location: Remote in Costa Rica

Job Functions:

• Designs, codes, tests, corrects, and documents responsive web applications using ReactJS and modern JavaScript frameworks, assisting in the implementation of software as part of a properly engineered information or communications system.

• Assists in providing accessibility, retrievability, security, and protection of data in an ethical manner.

• Defines test conditions for given requirements. Designs test cases and creates test scripts and supporting data using Jest as the testing framework. Interprets, executes, and records test cases in accordance with project test plans. Analyses and reports test activities and results.

• Produces software builds from source code and supports CI/CD pipelines using tools like Bamboo, Octopus, or similar.

• Conducts integration tests, records failures, and performs fault diagnosis for simple issues, reporting results clearly and concisely.

• Undertakes complete design of simple applications using reusable templates and tools. Assists as part of a team on the design of components of larger systems, including UI components and application architecture.

• Supports integrated applications with an understanding of front-end and back-end integration, test planning, scripting, and troubleshooting.

• Works closely with UX/UI designers, backend developers, and stakeholders to ensure seamless user experiences.

• Establishes, participates in, and maintains relationships with business units, customers, and IT subject matter experts to stay informed on project status, technology issues, risks, and integration challenges.

• Performs code reviews and provides constructive feedback to peers.

• Collaborates in agile development environments, applying best practices in version control (Git), testing, and iterative delivery.

• Participates in framework upgrades, refactoring efforts, and application modernization initiatives to improve performance, maintainability, and scalability of existing systems.

Qualifications:

• Bachelor's degree in Computer Science or related field, or equivalent experience.

• 2 to 4 years of experience in a software development environment, with a strong focus on front-end technologies.

Experience & Skills:

• Strong proficiency in ReactJS, JavaScript (ES6+), HTML5, and CSS3.

• Experience with state management libraries (e.g., Redux, Context API).

• Familiarity with RESTful APIs and asynchronous programming.

• Good understanding of software engineering practices including testing, version control (Git), and agile methodologies.

• Experience with cloud platforms such as AWS, Azure, or Google Cloud.

• Familiarity with CI/CD tools like Bamboo, Octopus, or similar.

• Knowledge of Java and Spring Boot is a plus, especially for full-stack collaboration.

• Experience with MongoDB or other NoSQL databases is beneficial.

• Knowledge of health-related terminology and Tableau reporting tools is a plus.

• Strong problem-solving, analytical, and organizational skills.

• Excellent oral and written communication skills.

Job Description
We are seeking a highly skilled and innovative Developer to join our dynamic team. In this role, you will be responsible for designing, developing, and implementing cutting-edge solutions to streamline business processes and enhance operational efficiency. You will collaborate with cross-functional teams to identify opportunities for automation, develop intelligent systems.

The ideal candidate will have a strong background in React, Python, Azure, DevOps and Fabric, with a passion for solving complex problems and driving technological advancements.

In This Role, Your Responsibilities Will Be:

• Working in an Agile framework and following sprint cycles to complete Software Development Life Cycle.
• Maintaining technical documentation, templates, or other reusable knowledge assets.
• Analysis and development of software and new functionalities.
• Management and solution of technical incidents.
• Development and maintenance of applications with different technologies.
• Execution of test plans and quality control code.
• Development in web environments with technologies such as React, Python, and Visual Studio.

Who You Are:
You ask the right questions to accurately analyze situations. You anticipate the impact of emerging technologies and make necessary adjustments. You create teamwork allowing others across the organization to achieve shared objectives.

For This Role, You Will Need:
Bachelor's degree in Computer Science, Information Technology, or equivalent experience.

Fluent in English, both written and verbal.

At least 3 years of development experience is required, which may include:

Experience in Visual Studio.NET technologies like C# .NET, .Net 4.5 or greater, .NET Core, ADO.NET, XML, Web Services, Azure, React.

Attention to detail and able to manage data accurately.

Preferred Qualifications That Set You Apart:

• Familiarity with Agile development methodologies.
• Experience with docker applications.
• Experience with SQL Server technologies.
• Microsoft Certifications.

Our Culture & Commitment to You:
At Emerson, we prioritize a workplace where every employee is valued, respected, and empowered to grow. We foster an environment that encourages innovation, collaboration, and diverse perspectives—because we know that great ideas come from great teams. Our commitment to ongoing career development and growing an inclusive culture ensures you have the support to thrive. Whether through mentorship, training, or leadership opportunities, we invest in your success so you can make a lasting impact. We believe diverse teams, working together are key to driving growth and delivering business results.

We recognize the importance of employee wellbeing. We prioritize providing competitive benefits plans, a variety of medical insurance plans, Employee Assistance Program, employee resource groups, recognition, and much more. Our culture offers flexible time off plans, vacation and holiday leave.

About Us
WHY EMERSON
Our Commitment to Our People
At Emerson, we are motivated by a spirit of collaboration that helps our diverse, multicultural teams across the world drive innovation that makes the world healthier, safer, smarter, and more sustainable. And we want you to join us in our bold aspiration.

We have built an engaged community of inquisitive, dedicated people who thrive knowing they are welcomed, trusted, celebrated, and empowered to solve the world's most complex problems — for our customers, our communities, and the planet. You'll contribute to this vital work while further developing your skills through our award-winning employee development programs. We are a proud corporate citizen in every city where we operate and are committed to our people, our communities, and the world at large. We take this responsibility seriously and strive to make a positive impact through every endeavor.

At Emerson, you'll see firsthand that our people are at the center of everything we do. So, let's go. Let's think differently. Learn, collaborate, and grow. Seek opportunity. Push boundaries. Be empowered to make things better. Speed up to break through. Let's go, together.

Accessibility Assistance or Accommodation
If you have a disability and are having difficulty accessing or using this website to apply for a position, please contact: .

About Emerson
Emerson is a global leader in automation technology and software. Through our deep domain expertise and legacy of flawless execution, Emerson helps customers in critical industries like life sciences, energy, power and renewables, chemical and advanced factory automation operate more sustainably while improving productivity, energy security and reliability.

With global operations and a comprehensive portfolio of software and technology, we are helping companies implement digital transformation to measurably improve their operations, conserve valuable resources and enhance their safety.

We offer equitable opportunities, celebrate diversity, and embrace challenges with confidence that, together, we can make an impact across a broad spectrum of countries and industries. Whether you're an established professional looking for a career change, an undergraduate student exploring possibilities, or a recent graduate with an advanced degree, you'll find your chance to make a difference with Emerson. Join our team – let's go

No calls or agencies please.

About Ua/Uniform Advantage Brands
For over 39 years, UA Brands has been synonymous with fashion-forward specialty apparel for the medical and culinary professions. We are proud to support our valued customers - true heroes giving back with every shift. Our culture includes a long history of philanthropy and community support. Our strong values and unique culture are built on collaborating not merely as coworkers, but as family and friends. From the beginning, we provide candidates an authentic look into how UA Brands embraces their skills and perspectives, all in ways that continue to set us apart.

As part of our expansion plans as a growing, global organization, Costa Rica was chosen to open a Shared Services Center, which started operations in December 2020. While our Costa Rica business office is based in the beautiful and sunny province of Heredia, at a convenient We Work building with wonderful co-working space, most of our global team members in Costa Rica are able to work exclusively from home.

About The Role
The Wed Developer II shall be responsible for developing both front and
back-end
systems, shall have an in-depth knowledge of the software development process, and shall be expected to contribute during software architecture sessions. Our ideal candidate should have experience working in a team environment, but shall also be a self-starter able to work in minimal direction. The ideal candidate will have a passion for developing and solving problems and a genuine interest in providing value to their team and the company as a whole. Excellent knowledge of
React
, C#, and JavaScript is required. Previous programming experience in e-commerce is a plus.

What You'll Do

• Software Development at 70%.
• Software Testing a 20%.
• Software Design a 10%.

What You'll Bring

• Bilingual (English & Spanish) is required for this position. Must demonstrate the ability to read, speak, and write in English.
• 5 - 10 years of experience in Backend Software Development.
• Object Oriented Programming.
• Advanced experience developing in C#.
• Advanced experience with ASP.Net.
• Experience with T-SQL.
• Advanced experience with JavaScript and React.
• AS/AA or Equivalent - Bachelor's degree in Computer Science.
• Excellent problem-solving, organizational, and analytical skills, with sharp attention to detail.

WHERE YOU'LL WORK
REMOTE
– Work from Home
Have workplace flexibility - you'll work exclusively from the comfort of your home with no commute Remote employees are expected to be online and available during the core business hours for their team. Company computer equipment is provided for business use.

Plenty Of Benefits Too
UA BRANDS offers a full range of benefits that addresses both your health and financial needs.

• Private medical insurance
• Life insurance
• Employee Assistance Program – self-care and support for life's everyday challenges
• Continuous remote work
• Paid vacations
• Holiday Pay
• Social Security coverage (CCSS)
• Workers Insurance coverage (INS)
• Referral Program - Get paid to work with Friends
• Regular Recognition, Social Activities, and Events – Mandatory Fun

UA IS AN EQUAL OPPORTUNITY EMPLOYER
As an employee of any UA Brands division, you will be part of an established and dynamic organization. We believe that success starts from within, and we are seeking individuals who thrive in an environment that encourages and supports self-management. To provide equal employment and advancement opportunities to all individuals, employment decisions at UA Brands will be based on merit, qualifications, and abilities. UA Brands does not discriminate in employment opportunities or practices based on race, color, religion, sex, national origin, age, disability, or any other characteristic protected by law. UA Brands will make reasonable accommodations for qualified individuals with known disabilities unless doing so would result in undue hardship.

Here at Harris, you'll be working as part of 5 different business verticals, Public Sector, Healthcare, Utilities, Insurance and Private sector, with over 12,000 employees and more than 100,000 customers located in 200 countries around the globe. We need your help to keep growing and we hope you can become an integral part of the Harris family.

Harris OnPoint, a business unit of Harris Computer, delivers elite and innovative software solutions that solve real client problems in the ever-changing world of healthcare.

We are dedicated to using innovative technology to bridge gaps in communication, workflows, connectivity, safety, and efficiency within healthcare organizations. We consistently strive to help healthcare teams optimize their time so they can focus on what's most important – patient care.

Job Summary:

We are seeking a skilled Full Stack Web Developer with strong experience in ASP.NET MVC, C#, SQL Server, and Bootstrap for responsive UI development. The ideal candidate will work across the full stack to design, develop, and deploy scalable applications. Exposure to basic database administration tasks is a possibility.

Primary Functions
:

• Design, develop, and maintain web applications using ASP.NET MVC, C#, and SQL Server.
• Build responsive applications using HTML5, CSS3, JavaScript, and Bootstrap.
• Develop, consume, and document RESTful APIs.
• Collaborate with product managers, QA engineers, and fellow developers in an Agile environment.
• Participate in code reviews, sprint planning, and DevOps processes.
• Utilize Bitbucket for source control, Jira for task tracking, and Azure DevOps for builds and deployments.
• (Optional) Support basic database maintenance and tuning tasks.
• (Highly desirable) Experience working on clinical or healthcare applications.

Job Qualifications:

The qualifications we are looking for are mixture of work experience and educational background.

They are split into Minimum Qualifications (must have) and Additional Qualifications (nice to have) along with soft skills (competencies) needed for the role:

Minimum Qualifications:

• Bachelor's degree in computer science, Engineering, or related field (or equivalent experience).
• 3+ years professional development experience with ASP.NET MVC, C#, and SQL Server.
• 3+ years' experience using Bootstrap for responsive UI development.
• 3+ years in Agile methodologies
• 3+ years of experience DevOps workflows using Bitbucket, Jira, and Azure DevOps.

Additional Qualifications:

• Knowledge of modern frontend libraries (e.g., React, Angular, Vue).
• (Bonus) Exposure to basic DBA concepts such as indexing and query tuning.

Soft Skills:

• Ability to work both independently and as part of a team
• Independent and self-learner
• Excellent communication and interpersonal skills
• Analytical Skills in relation to problem-solving abilities - thinks outside the box with a 'can-do attitude.
• Ability to work under pressure.

The above statements are intended to describe the general nature and level of work being performed by people assigned to this job. It is not designed to be utilized as a comprehensive list of all duties, responsibilities, and qualifications required of employees assigned to this job.

Working Environment:

This job operates in a professional office environment or remote home office location. This role routinely uses standard office equipment such as computers, phones, photocopiers, filing cabinets and fax machines. Periods of stress may occur.

This role may occasionally encounter Protected Health Information, Personal Identifiable Information or Privacy Records, and it is essential that all employees adhere to confidentiality requirements as outlined in the Employee Handbook and Harris' Security and Privacy policies, as well as apply the concepts learned in the annual Security Awareness training.

We're Hiring Join Our Growing Team

Positions Available: Java Developers (3)

Location: Remote (occasional in-person meetings)

Job Type: Full Time, Contractor

Job Overview

We're growing our team in Costa Rica and are hiring for multiple roles

As a Java Developer, you'll work on the development and expansion of our proprietary website publishing and automation platform.

Responsibilities:

• Develop and maintain platform features
• Refactor and clean up legacy code
• Build new functionality based on spec sheets
• Integrate APIs and automation flows
• Ensure scalability and performance across massive domain volumes

Requirements:

• 2 - 3+ years of Java development experience
• Strong English C1+ (written & spoken)
• Strong backend architecture knowledge (Tomcat preferred)
• Solid SQL (PostgreSQL) and relational data modeling skills
• Experience with APIs and modular coding
• Startup or fast-paced environment experience is a plus

Why Join Us?

• 100% Remote (with occasional in-person meetings)
• Fast-moving, collaborative, and startup-like culture
• Opportunity to grow, learn, and have real impact

How to apply: If you're interested, please specify which role you are applying for (
Operations Specialist
or
Java Developer
) and share your CV/resume with us.

Job Description
NOTE: This is a FULLY remote role, but the candidate must be in North or South America to collaborate with their team, peers, and internal customers. Please only apply if you are physically based in North or South America.
Hostaway is a SaaS scale-up that is transforming the vacation rental industry. With innovative solutions and partnerships with giants like Airbnb, VRBO, and Booking, we're taking on the competition and winning. Leveraging our customer-centric core values, we consistently deliver results that encourage growth, learning, and innovation for our team, our customers, and the industry.

As a profitable and growing company, this role is necessitated by our continued growth. Exciting Recent News We've raised $550M in the past 18 months, bringing us closer to unicorn status It's an incredible time to join us Learn More.

About The Role
Hostaway is on the hunt for a passionate and innovative Web Developer to elevate our digital presence.

In this high impact role, you will be at the forefront of building, enhancing and maintaining our website and digital assets. Which will directly shape how the world experiences our brand. You will work closely with Sr Marketing Manager, turning creative ideas into engaging online experiences that drive real results.

Your Mission

• Partner with the marketing team to launch new web pages, interactive experiences, and landing pages.
• Develop and maintain our marketing website, making it easy for the team to manage content through our Headless CMS ,Contentful
• Optimize our site for lightning fast speed, flawless mobile performance, and top tier SEO.
• Design and build eye catching, high converting landing pages that will wow our audience.
• Work closely with the marketing team plan and deliver website updates right on schedule.
• Uphold the highest standards in website quality, usability, and security.
• Monitor site performance and user experience, using data to spot opportunities for improvement.
• Work closely with the marketing team to execute A/B tests to boost conversions and support our growth goals.
• Collaborate with the content team to design and refine engaging website content.

Ensure all code is clean, modern and compatible across devices and browsers.

Job requirements

• 3–5 years of hands on web development experience, ideally in a B2B SaaS or startup/scale-up setting.
• A proven track record of building stunning, responsive websites for SaaS companies
• Mastery of HTML, CSS, JavaScript, React (Styled Components) and TailwindCSS.
• Bonus and nice to have skills: Gatsby, GraphQL.
• Experience with Headless CMS platforms like Contentful.
• Strong grasp of UI design, cross browser compatibility, and web standards.
• Familiarity with marketing tools like HubSpot, Unbounce, Google Analytics, Google search , Console ,SEMRush, Moz, and more.
• Knowledge of SEO/GEO best practices
• Experience using tools to monitor marketing websites for usage and behaviour to ensure a great user experience is considered an asset
• Excellent analytical and communication skills.

What We Offer

• Competitive Compensation: We offer competitive pay based on market rates in the country of the applicant.
• 100% Remote: Enjoy the freedom to work from anywhere within your country of residence—be it a co-working space, your home office, or even your dining room table. The choice is yours. Just don't ask to work in our office (we don't have one).
• Equity: Every role in our company comes with valuable stock options in a fast-growing and profitable company. This ensures we all share in the company's success.
• Values-Driven Leadership: Our Core Values are not just words we've written to make us feel good. We leverage them daily when making strategic and tactical decisions.
• Professional Growth: Our rapid growth offers unparalleled learning and development opportunities, along with a multitude of career advancement opportunities.
• Annual Paid Leave: The specific amounts vary by country and are aligned with country and/or contract-specific norms.
• Geographic Specific Benefits: As an international employer, we offer different country-specific benefits such as Health Insurance and Pensions in countries where these perks are customary. The specifics depend on the country of the applicant.
• Dynamic Team Culture: As a global company with team members in over 40 countries, our diverse and international culture fuels our innovation and creativity, providing a key pillar to our success (and making it a lot of fun to work here).

Thank you for your interest. If you apply for this role, you will receive an email from our Talent Acquisition team after your application has been reviewed alongside the qualifications for this role and the qualifications of others who have applied.