118 Ofertas de Senior Web Developer en Costa Rica

Become an EXpert as a Full Stack Developer & Python).

We are seeking a Full Stack Developer based in Costa Rica to join our team. In this role, you will design and implement scalable solutions that enhance customer workflows, integrate systems with cloud-based products, and contribute to successful project delivery through close collaboration with both clients and internal teams.

What You'll Do

• Design, develop, and deploy scalable web applications using and Python.
• Build and integrate solutions that optimize customer workflows and system interoperability.
• Implement RESTful APIs with secure authentication mechanisms.
• Collaborate with solution architects, clients, and cross-functional teams to ensure alignment and delivery excellence.
• Deploy and maintain applications in AWS cloud environments, ensuring performance, scalability, and security.
• Create and manage containerized applications using Docker; exposure to Kubernetes is a plus.
• Provide technical expertise across both Linux and Windows platforms.

What You'll Bring

• Bachelor's or Master's degree in Computer Science or a related field.
• 5+ years of professional experience in software development.
• Strong expertise in frontend development with
• Proficiency in backend development with Python.
• Experience working with RESTful APIs and authentication standards.
• Proven ability to design secure, maintainable, and high-performance solutions in AWS.
• Hands-on experience with Docker; familiarity with Kubernetes is a plus.
• Knowledge of both Linux and Windows operating systems.
• Excellent verbal and written communication skills.
• Advanced English proficiency, both spoken and written.

Nice to Have

• 2+ years of experience in solution architecture.
• Familiarity with DevOps practices and infrastructure automation.
• Exposure to cloud-native application design patterns.

Why Join EX Squared?

At EX Squared, we deliver high-quality technology solutions while fostering innovation, collaboration, and professional growth. You will join a multicultural team where your expertise will directly impact exciting and challenging projects.

What We Offer

• Competitive salary in USD.
• Remote work model in Costa Rica.
• Opportunities for professional growth and continuous learning.
• A collaborative and innovative culture.
• Recognition and support for your contributions.

Ready to make an impact? Apply now and become an EXpert with us

Job Title: Full Stack Developer

Location: Remote | Mexico, Brazil, Argentina, Colombia, Costa Rica

Employment Type: Contract

About the Role

We are looking for a seasoned developer to join our client's team in the energy sector. In this role, you will contribute to re-architecting existing systems, resolving data inconsistencies, and modernizing integration touchpoints within a customer-facing Gateway portal.

Responsibilities

• Develop and maintain backend services using C#/.NET.
• Design and optimize SQL databases, including stored procedures and views.
• Build and consume APIs using Azure API Management, MuleSoft, and Informatica.
• Collaborate with internal teams to align on integration strategy and execution.

Requirements

• Strong proficiency in C#, SQL, and API development.
• Familiarity with Azure, Salesforce, MuleSoft, and Informatica.
• 8 years of experience in backend development and system integration.
• Excellent communication skills and ability to work U.S. business hours.

Preferred Qualifications (if any)

• Bilingual proficiency is preferred.
• Experience in re-architecting data flows and system reliability improvement.

Salary & Benefits (Optional)

Pay Rate: Competitive, with flexibility for strong candidates.

Benefits include flexibility, autonomy, and the opportunity to work on high-impact projects.

Who We Are

SGF Global is an integrated talent solutions provider, offering staffing, recruitment, Employer of Record (EOR), nearshore, and consulting services across a wide range of industries in 35 countries. We're a dynamic, people-first organization where fresh ideas are always welcome. Our culture is built on collaboration, innovation, and a genuine passion for helping people grow. At SGF Global, smiles are part of the dress code, and every voice matters.

Are you looking to join an organization where your ideas are valued, your growth is supported, and your work makes a global impact? We're always looking for talented individuals who are ready to make a difference.

• Explore opportunities
• Grow your career
• Be part of something global
• Your future starts here.

Company Description
We are Software Mind, an awesome team of engineers who are ready to ramp up any top-notch company's projects Our aim? To always be one step ahead. Become part of a multicultural company in constant growth with an excellent work environment certified by Great Place To Work

Overview
Job Description

Software Mind is seeking qualified candidates to fill the role of
Full-Stack Developer
In Addition To a Competitive Salary Rate And a Positive Work Environment Committed To Delivering High-quality Technology Solutions, We Also Offer

• Flexible schedules
• An authentic work-life balance
• Payment in US Dollars

About The Role
We are seeking a Full-Stack Developer who will play a crucial role in the creation, testing, debugging, and thorough documentation of both novel applications and improvements to existing systems. The core focus of this role lies in the development and optimization of applications using an extensive stack encompassing MSSQL, React, , Express, Tailwind CSS, Headless UI, Power BI, , , and TypeScript.

Qualifications
The main responsibilities/tasks include:

• Design, develop, and maintain cutting-edge, responsive user interfaces with an emphasis on user experience, leveraging technologies such as React, , Tailwind CSS, and Headless UI, based on supplied design mockups.
• Architect and implement RESTful APIs for both internal and external applications. Familiarity with for API documentation and design is highly desirable.
• Write, optimize, and manage robust stored procedures for MSSQL database transactions, ensuring data integrity, security, and performance.
• Develop and deliver custom, insightful business reports using Power BI and MSSQL, meeting diverse business needs.
• Engage proactively with the IT department to share knowledge, streamline processes, and increase overall departmental efficiency.
• Contribute to coding standards by responding constructively to feedback from Code Reviewers, Quality Assurance Specialists, and User Acceptance Teams.
• Enhance code readability and maintainability by providing comprehensive comments that articulate the purpose and parameters of classes and functions.
• Promptly and effectively respond to Service Desk tickets, meeting the daily needs and concerns of customers while maintaining high customer service standards.

Job Skills/Requirements

• +90% English written and oral (at least B2 level) with excellent communication skills
• 3+ years of professional experience working with the Microsoft stack, specifically IIS and MSSQL, and authoring JavaScript code.
• 3+ years of hands-on experience writing efficient query statements and stored procedures for MSSQL Server.
• Minimum of 3 years' experience working with RESTful APIs, possessing familiarity with JSON and REST.
• 2+ years of experience managing version controls using Git via the command line.
• Prior experience with JavaScript libraries such as React, , , and is highly valued.
• Experience with Auth0 for managing user identities and security in web-based applications will be advantageous.
• Familiarity with Atlassian tools, including JIRA, Confluence, Bitbucket, or Bamboo, would be a plus.
• Practical experience in writing unit tests and integration tests is appreciated, demonstrating a commitment to code quality and stability.
• Experience maintaining IIS web servers is advantageous, contributing to site reliability and performance.
• Proficiency in TypeScript is a significant advantage, enhancing code safety and tooling.

Job Description
In This Role, Your Responsibilities Will Be:

• Design, develop, and maintain scalable full-stack web applications using and
• Build reusable frontend components using React with state management libraries such as Redux or Context API.
• Develop robust backend services and RESTful APIs using or NestJS.
• Integrate frontend applications with APIs and third-party services.
• Write clean, maintainable, and well-documented code across the stack.
• Participate in agile ceremonies, code reviews, and peer programming sessions.
• Contribute to system design discussions and architectural decisions.
• Work with SQL (e.g., PostgreSQL, MySQL) or NoSQL (e.g., MongoDB, DynamoDB) databases.
• Debug and troubleshoot issues efficiently, proactively addressing technical debt.

Who You Are:
You are passionate about technology and are highly skilled in crafting the overall technical vision for a specific solution to a business problem. You are responsible for designing, describing, and managing the solution. You can proficiently communicate ideas and build positive relationships with customers at all levels.

For This Role, You Will Need:

• 3–5 years of experience in full-stack web development.
• Strong expertise in , including component lifecycle, hooks, and adaptable design.
• Proven backend development experience with and Express/NestJS.
• Solid understanding of REST APIs and API integration practices.
• Experience with SQL or NoSQL databases and data modeling concepts.
• Proficiency with Git, modern JavaScript (ES6+), and web development tools.
• Advanced English

Preferred Qualifications that Set You Apart:

• Experience with GraphQL, Web-Sockets, or real-time applications is a plus.
• Exposure to cloud platforms (AWS, Azure, GCP) is a plus.
• Familiarity with Docker, CI/CD pipelines, and automated testing frameworks like Jest or Cypress is a plus.
• Bachelor's degree in computer science or a related field.

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, including paid parental leave (maternal and paternal), vacation, and holiday leave.

We are seeking a Full Stack Developer with strong proficiency in GenAI, agentic AI solutions, and full stack development. This role focuses on building and integrating semi-autonomous agentic AI solutions for adaptive process orchestration within the BFSI sector.

The ideal candidate will thrive in a startup environment, showing ownership, adaptability, and the ability to transform incomplete requirements into structured, scalable solutions.

• Design, develop, and integrate AI-driven agentic solutions for adaptive process orchestration.
• Collaborate with cross-functional teams to analyze BFSI use cases and convert them into robust technical solutions.
• Own the full development lifecycle: from concept to deployment and continuous enhancements.
• Operate in a fast-moving environment with limited structure, proactively defining frameworks and standards.
• Integrate AI models and tools into scalable and maintainable software architectures.
• Communicate effectively across teams, demonstrating collaboration, adaptability, and leadership mindset.

• 5+ years of experience as a Full Stack Developer.
• Strong proficiency with Python and TypeScript.
• Experience working with SQL and NoSQL databases.
• Hands-on experience in GenAI and agentic AI solutions.
• Solid background in modern web technologies and frameworks.
• Exposure to process automation, intelligence, or orchestration tools, ideally in BFSI.
• Comfortable working with ambiguity and evolving project scopes.
• Excellent communication and collaboration skills, with a startup-driven approach.

• Prior experience in BFSI or other highly regulated industries.
• Familiarity with AI orchestration frameworks and advanced automation tools.
• Proven ability to introduce structure and scalability in unstructured projects.
• Strong passion for emerging technologies and AI-driven innovation.

We offer a supportive and rewarding work environment with benefits designed to help you thrive:

• Full-Time Position: Stability and long-term growth.
• Competitive Compensation: Paid in US dollars.
• 100% Remote: Work from anywhere in Colombia.
• Paid Time Off: 12 PTO days per year.
• Local Holidays: Celebrate all official holidays in your country.
• Birthday Off: Enjoy your special day off, on us
• Career Growth: Clear paths for development and progression.
• Recognition Program: Celebrate achievements and contributions.
• Paid Leaves: Full coverage for approved leaves.

If this role excites you and matches your background, wed love to hear from you

We are looking for a Full Stack Developer to contribute to the modernization and stabilization of a B2B marketplace application. The position involves upgrading core technologies, restoring essential modules, resolving performance and functionality issues, and preparing the system for transactional readiness. This role requires strong technical skills in .NET Core, Angular, and Azure, along with experience managing complex environments and legacy modernization.

About First Factory

We are a software development company with over two decades of experience, boasting a dynamic team of 180+ professionals actively engaged in diverse projects across various industries. We invite you to join us on this journey as we thrive and embrace fresh challenges.

Key Responsibilities

• Migrate existing frameworks and dependencies to the latest supported versions, including Angular and .NET Core.
• Review, validate, and repair the data entry functionality supporting a large media kit database.
• Investigate and address any technical or functional problems limiting system capability.
• Re-establish and optimize development, testing, and production environments hosted in Azure.
• Support onboarding flows (registration, payment setup).
• Reinstate marketplace features such as search, browsing, and offer/counter-offer workflows.
• Ensure end-to-end processing of transactions.

Requirements

• Strong background in C# and .NET Core.
• Proficiency with Microsoft Azure services (App Service, DevOps, SQL Database, Service Bus).
• Hands-on experience with Angular and TypeScript.
• Solid knowledge of SQL Server database design and optimization.
• Proficient with Visual Studio and Azure DevOps.

Nice to have

• Exposure to microservices architectures.
• Previous work on B2B marketplace or e-commerce applications.
• Experience in startup or fast-paced environments.
• Familiarity with modernizing legacy codebases.

We are looking for a Full Stack Developer to contribute to the modernization and stabilization of a B2B marketplace application. The position involves upgrading core technologies, restoring essential modules, resolving performance and functionality issues, and preparing the system for transactional readiness. This role requires strong technical skills in .NET Core, Angular, and Azure, along with experience managing complex environments and legacy modernization.

About First Factory

We are a software development company with over two decades of experience, boasting a dynamic team of 180+ professionals actively engaged in diverse projects across various industries. We invite you to join us on this journey as we thrive and embrace fresh challenges.

Key Responsibilities

• Migrate existing frameworks and dependencies to the latest supported versions, including Angular and .NET Core.
• Review, validate, and repair the data entry functionality supporting a large media kit database.
• Investigate and address any technical or functional problems limiting system capability.
• Re-establish and optimize development, testing, and production environments hosted in Azure.
• Support onboarding flows (registration, payment setup).
• Reinstate marketplace features such as search, browsing, and offer/counter-offer workflows.
• Ensure end-to-end processing of transactions.

Requirements

• Strong background in C# and .NET Core.
• Proficiency with Microsoft Azure services (App Service, DevOps, SQL Database, Service Bus).
• Hands-on experience with Angular and TypeScript.
• Solid knowledge of SQL Server database design and optimization.
• Proficient with Visual Studio and Azure DevOps.

Nice to have

• Exposure to microservices architectures.
• Previous work on B2B marketplace or e-commerce applications.
• Experience in startup or fast-paced environments.
• Familiarity with modernizing legacy codebases.

Join our dynamic team where you'll be at the forefront of delivering transformative solutions for industry-leading clients. As a client-facing consultant, you'll tackle complex challenges within a fast-paced, high-growth environment. Our core platform, built on cutting-edge technologies like , TypeScript, and React, serves hundreds of thousands of users and ranks consistently on the App Store. Your work will directly impact our clients by enhancing user experiences, optimizing performance, and scaling backend systems on Firebase. This is a fully remote role, offering the flexibility to innovate and collaborate with top-tier U.S. teams from anywhere.

• A minimum of 1 year of professional full-stack development experience.

• Proficiency in TypeScript, , and , with a solid understanding of modern web architecture.

• Hands-on experience with Firebase (Firestore, Auth, Cloud Functions, Storage) or similar technologies.

• Familiarity with cloud infrastructure, such as GCP, Vercel, or AWS.

• Exceptional English communication skills, both written and verbal.

• Basic client interaction capabilities, with a professional and self-driven approach.

• Experience with Stripe Connect, real-time chat, or working in growth-stage startups.

• Previous consulting experience that demonstrates your ability to deliver impactful solutions for clients.

You'll collaborate with top-tier U.S. clients, gaining exposure to a variety of exciting projects that drive real-world impact. Our remote-first work environment offers the flexibility to balance your professional and personal life while working on innovative solutions. As part of our team, you'll have the opportunity to grow and develop your skills, contributing to a platform that is scaling rapidly and shaping the future of UGC creator marketplaces. Join us and be part of a lean, scrappy team that values high-velocity shipping and strategic product decisions.

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, San Jose (Costa Rica) 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 organisations to create a more cost-effective structure while focusing on their core activities.

As we continue to grow, we are seeking an
experienced
Full Stack .NET Developer with React to lead complex projects, mentor team members, and contribute to the development of cutting-edge software solutions.

Main Responsibilities

Design, develop, and maintain scalable and secure web applications using .NET, React, and related technologies.

Take ownership of the entire development lifecycle, including architecture design, coding, testing, deployment, and support.

Collaborate closely with cross-functional teams, including Product Managers, Designers, and QA Engineers, to deliver high-quality software solutions.

Lead code reviews, ensuring best practices in coding standards, security, and performance.

Provide mentorship and technical guidance to junior and mid-level developers.

Stay updated with emerging technologies and recommend improvements to enhance the technology stack.

Troubleshoot and resolve complex technical issues to ensure smooth operation of applications.

· Proficient in leveraging AI tools and platforms to support and enhance daily tasks and operational workflows.

Required Skills and Qualifications

5+ years of experience in full-stack development with a strong focus on .NET technologies and React.

Expertise in C#, ASP.NET Core, EF Core, and RESTful API development.

Proficiency in modern front-end technologies, including React, JavaScript/TypeScript, HTML5, CSS3 and responsive design best practices.

Solid experience with MS SQL Server or other relational databases.

Familiarity with CI/CD pipelines, version control systems (e.g., Git), and Agile methodologies.

Strong problem-solving skills and the ability to work independently on complex tasks.

Excellent communication skills with the ability to explain technical concepts to non-technical stakeholders.

A degree in Computer Science, Software Engineering, or a related field (or equivalent experience).

Preferred Qualifications

Experience with Cloud platforms such as Azure or AWS.

Knowledge of SignalR, Microservices architecture, Containerization (Docker, Kubernetes).

Experience with additional frameworks like VueJS, Angular, or mobile development frameworks like .NET MAUI.

Strong understanding of DevOps practices and tools.

What We Offer

Competitive salary and performance-based bonuses.

Opportunities to work on innovative projects with the latest technologies.

A supportive and collaborative team environment.

How to Apply

If you are a passionate and experienced developer looking to make a significant impact, Send us your CV, in English, we'd love to hear from you

Join us and help shape the future of technology