23 Ofertas de Backend Developer en Costa Rica

Become an EXpert as a Senior Backend Developer (Java + AWS)
At EX Squared LATAM, we empower global brands through innovative digital strategies. We're looking for a Senior Backend Developer with strong expertise in Java and AWS to design, develop, and optimize scalable, high-performance backend services for enterprise-grade applications.

This role is ideal for a bilingual professional passionate about clean architecture, cloud-native development, performance tuning, and delivering secure, reliable solutions.

6-month contract
– Opportunity to make a direct impact on high-level digital solutions.

Hybrid model
– You will be expected to work 1 day per week (Wednesdays) from the office.

What You'll Do

• Design, build, and maintain backend services and APIs using Java and Spring Boot.
• Develop and optimize RESTful APIs for enterprise-grade applications.
• Integrate backend services with AWS infrastructure (S3, Lambda, API Gateway, RDS).
• Apply object-oriented principles and design patterns to build scalable, maintainable solutions.
• Optimize database operations: queries, stored procedures, performance tuning, and troubleshooting.
• Collaborate with cross-functional teams (Frontend, Product, QA) to ensure smooth delivery.
• Write unit and integration tests with JUnit and related frameworks.
• Operate in CI/CD pipelines using Jenkins, GitHub Actions, or GitLab CI.
• Support observability and monitoring using Datadog, Splunk, or similar tools.
• Work in Unix/Linux environments for deployments and troubleshooting.

What You'll Bring (Must-Have)

• Bilingual proficiency (English C1+) with ability to explain technical concepts clearly.
• 5+ years of professional experience in backend development with Java.
• Strong knowledge of Java fundamentals: Collections, Streams, Lambdas, functional programming, concurrency, and error handling.
• Proven expertise in Spring Boot & Spring MVC.
• Hands-on experience designing and consuming RESTful APIs.
• Advanced skills in relational databases (Oracle, PostgreSQL, or MySQL) and PL/SQL.
• Experience deploying and integrating with AWS services (S3, RDS, Lambda, API Gateway).
• Proven experience in performance optimization and scalability (SQL tuning, memory management, high-load services).
• Familiarity with CI/CD workflows and Git.
• Comfort working in Unix/Linux environments.

Nice to Have

• Experience with GraphQL (design and implementation).
• Experience with Terraform or other Infrastructure as Code tools.
• Familiarity with microservices architecture and distributed systems.
• Knowledge of secure coding practices and static code analysis.
• Experience with Docker, Kubernetes, or event-driven architectures (Kafka, SNS/SQS).
• Understanding of cloud security best practices.

Why Join EX Squared?
At EX Squared, you'll join a team that's reshaping digital experiences across LATAM and beyond. We foster a culture of innovation, continuous learning, and collaboration, empowering our people to create real impact for global clients.

What We Offer

• Competitive salary in USD.
• Hybrid model (remote + one day per week onsite).
• Access to continuous learning programs.
• Inclusive and collaborative culture.
• Recognition for outstanding performance.

Conviértete en un EXpert como Senior Backend Developer (Java + AWS)

En EX Squared LATAM potenciamos a marcas globales a través de estrategias digitales innovadoras. Buscamos un Senior Backend Developer con sólida experiencia en Java y AWS para diseñar, desarrollar y optimizar servicios backend escalables y de alto rendimiento para aplicaciones de nivel empresarial.

Este rol es ideal para un profesional bilingüe, apasionado por la arquitectura limpia, el desarrollo cloud-native, la optimización de rendimiento y la entrega de soluciones seguras y confiables.

Contrato de 6 meses – Oportunidad de generar un impacto directo en soluciones digitales de alto nivel.

Lo que harás

• Diseñar, construir y mantener servicios backend y APIs utilizando Java y Spring Boot.
• Desarrollar y optimizar APIs RESTful para aplicaciones empresariales.
• Integrar servicios backend con infraestructura AWS (S3, Lambda, API Gateway, RDS).
• Aplicar principios de programación orientada a objetos y patrones de diseño para construir soluciones escalables y mantenibles.
• Optimizar operaciones de base de datos: queries, procedimientos almacenados, ajuste de rendimiento y resolución de problemas.
• Colaborar con equipos multifuncionales (Frontend, Producto, QA) para asegurar una entrega fluida.
• Escribir pruebas unitarias e integraciones con JUnit y frameworks relacionados.
• Operar en pipelines CI/CD utilizando Jenkins, GitHub Actions o GitLab CI.
• Dar soporte en observabilidad y monitoreo con Datadog, Splunk u otras herramientas similares.
• Trabajar en entornos Unix/Linux para despliegues y resolución de incidencias.

Lo que necesitas para tener éxito (Must-Have)

• Dominio bilingüe (Inglés C1+) con capacidad para explicar conceptos técnicos con claridad.
• 3+ años de experiencia profesional en desarrollo backend con Java.
• Sólidos conocimientos de fundamentos de Java: Collections, Streams, Lambdas, programación funcional, concurrencia y manejo de errores.
• Experiencia comprobada en Spring Boot y Spring MVC.
• Experiencia práctica diseñando y consumiendo APIs RESTful.
• Conocimientos avanzados en bases de datos relacionales (Oracle, PostgreSQL o MySQL) y PL/SQL.
• Experiencia desplegando e integrando servicios con AWS (S3, RDS, Lambda, API Gateway).
• Experiencia en optimización de rendimiento y escalabilidad (tuning de SQL, gestión de memoria, servicios de alto tráfico).
• Familiaridad con flujos CI/CD y Git.
• Comodidad trabajando en entornos Unix/Linux.

Deseable (Nice to Have)

• Experiencia con GraphQL (diseño e implementación).
• Experiencia con Terraform u otras herramientas de Infraestructura como Código.
• Familiaridad con arquitecturas de microservicios y sistemas distribuidos.
• Conocimiento de prácticas de codificación segura y análisis estático de código.
• Experiencia con Docker, Kubernetes o arquitecturas event-driven (Kafka, SNS/SQS).
• Conocimiento de buenas prácticas de seguridad en la nube.

Por qué unirte a EX Squared

En EX Squared te unirás a un equipo que está transformando experiencias digitales en LATAM y más allá. Fomentamos una cultura de innovación, aprendizaje continuo y colaboración, empoderando a nuestra gente para generar un impacto real en clientes globales.

Lo que ofrecemos

• Salario competitivo en USD.
• Modalidad remoto.
• Acceso a programas de aprendizaje continuo.
• Cultura inclusiva y colaborativa.
• Reconocimiento al desempeño sobresaliente.

Become an EXpert as a Senior Backend Developer (Java + AWS)

At EX Squared LATAM, we empower global brands through innovative digital strategies. We're looking for a Senior Backend Developer with strong expertise in Java and AWS to design, develop, and optimize scalable, high-performance backend services for enterprise-grade applications.

This role is ideal for a bilingual professional passionate about clean architecture, cloud-native development, performance tuning, and delivering secure, reliable solutions.

6-month contract – Opportunity to make a direct impact on high-level digital solutions.

Hybrid model – You will be expected to work 1 day per week (Wednesdays) from the office.

What You'll Do

• Design, build, and maintain backend services and APIs using Java and Spring Boot.
• Develop and optimize RESTful APIs for enterprise-grade applications.
• Integrate backend services with AWS infrastructure (S3, Lambda, API Gateway, RDS).
• Apply object-oriented principles and design patterns to build scalable, maintainable solutions.
• Optimize database operations: queries, stored procedures, performance tuning, and troubleshooting.
• Collaborate with cross-functional teams (Frontend, Product, QA) to ensure smooth delivery.
• Write unit and integration tests with JUnit and related frameworks.
• Operate in CI/CD pipelines using Jenkins, GitHub Actions, or GitLab CI.
• Support observability and monitoring using Datadog, Splunk, or similar tools.
• Work in Unix/Linux environments for deployments and troubleshooting.

What You'll Bring (Must-Have)

• Bilingual proficiency (English C1+) with ability to explain technical concepts clearly.
• 5+ years of professional experience in backend development with Java.
• Strong knowledge of Java fundamentals: Collections, Streams, Lambdas, functional programming, concurrency, and error handling.
• Proven expertise in Spring Boot & Spring MVC.
• Hands-on experience designing and consuming RESTful APIs.
• Advanced skills in relational databases (Oracle, PostgreSQL, or MySQL) and PL/SQL.
• Experience deploying and integrating with AWS services (S3, RDS, Lambda, API Gateway).
• Proven experience in performance optimization and scalability (SQL tuning, memory management, high-load services).
• Familiarity with CI/CD workflows and Git.
• Comfort working in Unix/Linux environments.

Nice to Have

• Experience with GraphQL (design and implementation).
• Experience with Terraform or other Infrastructure as Code tools.
• Familiarity with microservices architecture and distributed systems.
• Knowledge of secure coding practices and static code analysis.
• Experience with Docker, Kubernetes, or event-driven architectures (Kafka, SNS/SQS).
• Understanding of cloud security best practices.

Why Join EX Squared?

At EX Squared, you'll join a team that's reshaping digital experiences across LATAM and beyond. We foster a culture of innovation, continuous learning, and collaboration, empowering our people to create real impact for global clients.

What We Offer

• Competitive salary in USD.
• Hybrid model (remote + one day per week onsite).
• Access to continuous learning programs.
• Inclusive and collaborative culture.
• Recognition for outstanding performance.

Conviértete en un EXpert como Senior Backend Developer (Java + AWS)
En EX Squared LATAM potenciamos a marcas globales a través de estrategias digitales innovadoras. Buscamos un
Senior Backend Developer
con sólida experiencia en
Java y AWS
para diseñar, desarrollar y optimizar servicios backend escalables y de alto rendimiento para aplicaciones de nivel empresarial.

Este rol es ideal para un profesional bilingüe, apasionado por la arquitectura limpia, el desarrollo cloud-native, la optimización de rendimiento y la entrega de soluciones seguras y confiables.

Contrato de 6 meses
– Oportunidad de generar un impacto directo en soluciones digitales de alto nivel.

Lo que harás

• Diseñar, construir y mantener servicios backend y APIs utilizando Java y Spring Boot.
• Desarrollar y optimizar APIs RESTful para aplicaciones empresariales.
• Integrar servicios backend con infraestructura AWS (S3, Lambda, API Gateway, RDS).
• Aplicar principios de programación orientada a objetos y patrones de diseño para construir soluciones escalables y mantenibles.
• Optimizar operaciones de base de datos: queries, procedimientos almacenados, ajuste de rendimiento y resolución de problemas.
• Colaborar con equipos multifuncionales (Frontend, Producto, QA) para asegurar una entrega fluida.
• Escribir pruebas unitarias e integraciones con JUnit y frameworks relacionados.
• Operar en pipelines CI/CD utilizando Jenkins, GitHub Actions o GitLab CI.
• Dar soporte en observabilidad y monitoreo con Datadog, Splunk u otras herramientas similares.
• Trabajar en entornos Unix/Linux para despliegues y resolución de incidencias.

Lo que necesitas para tener éxito (Must-Have)

• Dominio bilingüe (Inglés C1+) con capacidad para explicar conceptos técnicos con claridad.
• 3+ años de experiencia profesional en desarrollo backend con Java.
• Sólidos conocimientos de fundamentos de Java: Collections, Streams, Lambdas, programación funcional, concurrencia y manejo de errores.
• Experiencia comprobada en Spring Boot y Spring MVC.
• Experiencia práctica diseñando y consumiendo APIs RESTful.
• Conocimientos avanzados en bases de datos relacionales (Oracle, PostgreSQL o MySQL) y PL/SQL.
• Experiencia desplegando e integrando servicios con AWS (S3, RDS, Lambda, API Gateway).
• Experiencia en optimización de rendimiento y escalabilidad (tuning de SQL, gestión de memoria, servicios de alto tráfico).
• Familiaridad con flujos CI/CD y Git.
• Comodidad trabajando en entornos Unix/Linux.

Deseable (Nice to Have)

• Experiencia con GraphQL (diseño e implementación).
• Experiencia con Terraform u otras herramientas de Infraestructura como Código.
• Familiaridad con arquitecturas de microservicios y sistemas distribuidos.
• Conocimiento de prácticas de codificación segura y análisis estático de código.
• Experiencia con Docker, Kubernetes o arquitecturas event-driven (Kafka, SNS/SQS).
• Conocimiento de buenas prácticas de seguridad en la nube.

Por qué unirte a EX Squared
En EX Squared te unirás a un equipo que está transformando experiencias digitales en LATAM y más allá. Fomentamos una cultura de innovación, aprendizaje continuo y colaboración, empoderando a nuestra gente para generar un impacto real en clientes globales.

Lo que ofrecemos

• Salario competitivo en USD.
• Modalidad remoto.
• Acceso a programas de aprendizaje continuo.
• Cultura inclusiva y colaborativa.
• Reconocimiento al desempeño sobresaliente.

Responsibilities and Duties

• Gain a strong understanding of the design and architecture of the products under development.
• Demonstrate solid knowledge of technologies such as GitHub (or similar), Docker, CircleCI (or similar), Python, and Kubernetes.
• Follow and contribute to the CI/CD process.
• Apply web service design principles.
• Work with AWS solutions (S3, EC2, EKS, Aurora, among others).
• Actively contribute to the development and design of a new multi-tenancy computational resource sharing platform and other upcoming projects.
• Lead troubleshooting efforts for microservices when required.
• Participate in code reviews (primarily via GitHub Pull Request reviews).
• Write functional tests for all new microservices functionality and improve coverage for existing ones.
• Support release activities.
• Write unit tests for new common code and any code not efficiently testable via functional tests.
• Integrate microservices functional tests into deployment pipelines/jobs.
• Participate in regular status update meetings.

Requirements, Qualifications, and Skills

• Minimum 3 years of recent, hands-on experience as a Python Developer.
• Proficiency in at least one popular Python framework (Django, Flask, FastAPI, or Pyramid). Flask and/or FastAPI are strongly preferred.
• At least 2 years of experience integrating application code with AWS Cloud solutions (or similar platforms such as Microsoft Azure and/or Google Cloud).
• Strong experience with Docker and Dockerfile syntax.
• Solid knowledge of databases.
• Familiarity with front-end technologies (JavaScript, HTML5).
• Strong problem-solving skills and a collaborative, team-oriented mindset.
• Bachelor's degree in Computer Science, Engineering, or related field.
• Advanced English level.

Work Conditions

• Monday to Friday, standard business hours.
• Hybrid position. Centro Ejecutivo de Negocios Eurocenter Torre I, Piso 8Vo, Heredia, San José

Benefits

• Legal benefits.
• Access to professional courses and certifications.

Position:
Software Development Engineer in Test

Location:
Costa Rica

Modality:
100% Remote

Duration:
Initial 6 months with potential extension

We are pleased to present an exciting opportunity with a leading company in the
technology
sector.

What You'll Do:

• Collaborate closely with the engineering team to resolve bugs and develop new features.
• Design, implement, and maintain new functionalities based on product management requirements.
• Investigate and resolve technical issues, including addressing technical debt.
• Apply best practices in automated testing throughout the development lifecycle.

Your Key Qualifications:

• Strong proficiency in
  TypeScript
  ,
  JavaScript
  , and
  React
  .
• Prior experience working in agile development environments.
• Ability to write clean, reusable, and well-documented code.
• Familiarity with unit testing and frameworks such as
  Jest
  .
• Experience with end-to-end testing using
  Cypress
  .
• Understanding of
  CI/CD pipelines
  and continuous integration tools.

At
Net2Source
, we are committed to connecting top talent with industry leaders. If this role aligns with your expertise, let's connect

Additional Locations: Costa Rica-Heredia

Diversity - Innovation - Caring - Global Collaboration - Winning Spirit - High Performance

At our company, we value diversity and believe it is our greatest strength. We are committed to empowering women, supporting the LGBTQ+ community, and creating opportunities for individuals with disabilities. Our belief is that your diversity enriches our work environment. As an equal opportunity employer, we wholeheartedly welcome applications from all qualified candidates, regardless of their background. Additionally, we have a Gender Equality Policy that reflects our commitment to fairness and equality in the workplace.

Hybrid Roles:

Boston Scientific's hybrid workplace includes Working From Home and onsite. You will have the opportunity to discuss details in the interview.

About the role:

Boston Scientific is seeking a highly motivated and versatile Sr. Software Development Engineer in Test to join our Neuromodulation Software Development team of diverse and high-performing employees, tackling some of the most important health industry challenges. As an engineer on the Software Infrastructure, Framework and Tools team you will be collaborating on various exciting projects, ranging from test automation to connectivity projects.

In this pivotal role, you will be expected to leverage your extensive experience to tackle complex technical challenges and drive innovation within the team. Your proactive approach and problem-solving skills will be crucial as you navigate the intricacies of software testing and development. By embracing new technologies and methodologies, you will ensure the robustness and reliability of our software solutions, thereby contributing to our mission of improving patient outcomes through cutting-edge neuromodulation technologies. Your collaboration with cross-functional teams will be instrumental in achieving our strategic goals and delivering high-quality products to the market.

This individual will partner with product development, participate in architectural and software development activities, mentor junior SDET engineers and conduct software requirements analysis, verification, test documentation and automation.

Key Responsibilities:

• Being able to extract and create Test Plan by reviewing design documents, technical requirements, and Jira stories, and maintaining them during project lifecycle

• Creating, maintaining, and refactoring the testing frameworks, implementing test libraries

• Creating automated tests in Python using Pytest for Surface Pro application and mobile integration tests

• Familiar with test case management like JIRA and Zephyr to create test suites, and detailed test steps to ensure requirements traceability and test coverage

• Familiar with using general mobile devices to interact with devices via Bluetooth, NFC, Wi-Fi, and using mobile applications to interact with our devices

• Comfortable interacting and working directly with Development, Program Management, to get the necessary support regarding key deliverables and interacting with them to resolve issues quickly and efficiently

• Being able to reproduce issues reported, or as needed during regression and product verification during testing and after release to production

• Willingness to directly work with team members overseas

• Proficient oral and written communication skills

What we are looking for:

Required Qualifications:

• 4 or more years relevant work experience

• 2 or more years of Python test development experience

• Hands on end-to-end test experience with desktop, windows tablets, mobile and web software products

• Experience with testing and supporting large scale customer facing product releases

• Practical experience working within an Agile/Scrum based environment

Preferred Qualifications:

• Knowledge of wireless testing technologies, including cellular (5G, LTE, WCDMA), Wi-Fi, Bluetooth etc.

• Experience with testing complex applications on desktop, tablets

Requisition ID:

As a leader in medical science for more than 40 years, we are committed to solving the challenges that matter most – united by a deep caring for human life. Our mission to advance science for life is about transforming lives through innovative medical solutions that improve patient lives, create value for our customers, and support our employees and the communities in which we operate. Now more than ever, we have a responsibility to apply those values to everything we do – as a global business and as a global corporate citizen.

So, choosing a career with Boston Scientific (NYSE: BSX) isn't just business, it's personal. And if you're a natural problem-solver with the imagination, determination, and spirit to make a meaningful difference to people worldwide, we encourage you to apply and look forward to connecting with you

Benefits
• Life-Work Integration
• Community
• Career Growth

At Boston Scientific, you will find a collaborative culture driven by a passion for innovation that keeps us connected on the most essential level. With determination, imagination, and a deep caring for human life, we're solving some of the most important healthcare industry challenges. Together, we're one global team committed to making a difference in people's lives around the world. This is a place where you can find a career with meaningful purpose—improving lives through your life's work.

We're looking for a deeply technical and hands-on Software Development Engineer in Test (macOS) to own the quality of their macOS integration layers — including endpoint security agents, network extensions, and other system-level components. You'll work closely with engineering and product teams to build high-fidelity automated tests, validate complex behavior across macOS internals, and ensure our platform's reliability, security, and compatibility on Apple hardware.

This is not just UI testing — this is system extension testing, sandbox boundary validation, and building test frameworks that simulate real-world macOS system behavior under enterprise security constraints.

Responsibilities:

1. Work with product development teams throughout the product life cycle to ensure software quality requirements and goals are established and met.
2. Responsible for automating functional and non-functional tests to reduce test duration
3. Design, build, and maintain automated test infrastructure for system-level macOS functionality, especially around:
4. Perform code reviews and white box testing to uncover defects early in the product life cycle.

1. Strong proficiency in at least two of the following languages: Python, Swift, ObjC
2. Design, build, and maintain automated test infrastructure for system-level macOS functionality, especially around: Endpoint Security, Network Extensions, Accessibility and other Mac frameworks.
3. Experience developing automated test frameworks or comprehensive test suites targeting MacOS desktop applications and platform functionality.
4. Participate in architectural and design reviews with engineering and product
5. Drive regression, exploratory, and compatibility testing across macOS versions (including Sonoma and beyond)
6. Excellent debugging and troubleshooting skills on MacOS.

1. Experience in reverse engineering, disassembly, or debugging at the kernel/driver level is highly desirable.
2. Practical knowledge of functional and regression testing methodologies for desktop applications.
3. Familiarity with performance testing techniques (soak, stress, load testing).
4. Background in virtualization platforms, data center operations, or VM lifecycle management.
5. Experience integrating AI/LLM-based solutions into automation to improve testing efficiency.

Salary: $7,500 USD /month + Holidays

Unlimited PTO