Senior Java Backend Engineer - Omnichannel Commerce

Hcltech; Madrid; Presencial; EUR 65.000 - 90.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Permanent contract

Competitive salary

Private health and life insurance from

Meal allowance on card/voucher

Descripción de la vacante

HCLTech in Madrid is seeking a Senior Java Backend Engineer to design, develop, and deploy robust backend solutions for omnichannel commerce. You will work on microservices using Java 21 and Spring, integrate with OMS and Fluent Commerce, and collaborate across cross-functional teams to ensure scalable, secure, and reliable order management workflows.

The role involves building RESTful APIs, modern cloud-native stacks, and participating in Agile ceremonies within a multinational environment.

Formación

• 5+ years of experience as a Java Software Engineer with strong Java 21 and Spring ecosystem.
• Experience developing microservices-based solutions using event-driven architectures.
• Experience with Order Management Systems (OMS) and Fluent Commerce for omni-retail.
• Strong RESTful API design in OpenAPI/Swagger; JSON/XML/GraphQL handling.
• Experience building omni-retail and e-commerce workflows (order lifecycle, inventory, fulfilment, returns, payments).
• Proficiency with MySQL and MongoDB.
• Hands-on with Docker, Kubernetes, and CI/CD (GitLab).
• Experience with event messaging systems (AWS SQS, Pub/Sub).
• Security expertise: OAuth2, OIDC, Keycloak/Okta.
• Familiarity with Atlassian toolchain and modern dev/testing tooling.

Responsabilidades

• Analyze requirements to design robust backend solutions for omni-channel retail and order management.
• Develop, test, and deploy Java-based microservices ensuring scalability and performance.
• Integrate with OMS and retail platforms across key flows like orchestration, fulfillment, and payments.
• Maintain and improve existing services for high quality and reliability.
• Troubleshoot defects and integration issues; resolve performance bottlenecks.
• Collaborate with Support to resolve production incidents in omni-retail services.
• Work with DevOps to improve CI/CD pipelines and deployment processes.
• Review specifications and translate into scalable solutions; support automated testing.
• Collaborate with QA to support testing strategies and automation.
• Contribute to product/service improvements through technical enhancements and optimizations.
• Participate in Agile ceremonies and cross-functional teamwork.

Conocimientos

Java 21

Spring ecosystem

Microservices

OMS / Fluent Commerce

RESTful APIs OpenAPI/Swagger

JSON/XML/GraphQL

Databases MySQL MongoDB

Docker Kubernetes

CI/CD GitLab

OAuth2/OIDC/Keycloak/Okta

AWS cloud

IntelliJ/Jira/Confluence

Educación

Bachelor’s or Master’s degree in Computer Science / Software Engineering

Herramientas

IntelliJ

Jira

Confluence

SonarQube

Datadog

Insomnia

RobotFramework

Descripción del empleo

Senior Java Backend Engineer - Omnichannel Commerce HCLTech•Madrid, area metropolitana (comarca); comunidad de madrid, Spain

Descripción del trabajo

We are HCLTech, one of the fastest-growing large tech companies in the world and home to 220,000 people across 60 countries. We supercharge progress through industry-leading capabilities centered around Digital, Engineering, Cloud, and AI. Our diverse, creative, and passionate people are the driving force behind our work, consistently raising the bar for excellence. We strive to help our employees find their spark and become the best version of themselves

Senior Java Backend Engineer - Omnichannel Commerce

Responsibilities

• Analyse business and technical requirements to design and develop robust backend solutions supporting omni-channel retail and order management processes.
• Develop, test, debug, and deploy Java-based microservices, ensuring scalability, reliability, and performance.
• Design and implement integrations with Order Management Systems and retail platforms, supporting key flows such as order orchestration, inventory visibility, fulfilment, returns, and payment flows.
• Maintain and improve existing services, ensuring high code quality, maintainability, and reliability.
• Troubleshoot and resolve software defects, integration issues, and performance bottlenecks.
• Collaborate with the Support team to investigate and resolve production incidents related to omni-retail and order management services.
• Work with the DevOps team to implement and improve CI/CD pipelines, automation, and deployment processes.
• Review functional specifications and translate them into scalable and maintainable technical solutions.
• Collaborate with QA Engineers to support testing strategies and contribute to automated testing.
• Contribute to the continuous improvement of the Product/Solution by recommending technical enhancements and optimizations.
• Participate actively in Agile ceremonies (daily stand-ups, sprint planning, sprint reviews, retrospectives).

Qualifications & Experience

Technical Skills

• 5+ years of experience as a Java Software Engineer, with strong expertise in Java 21 and the Spring ecosystem (Spring Boot, Spring Data JPA, Hibernate, Spring Cloud).
• Proven experience developing microservices-based solutions using event-driven architectures and API first principles.
• Experience working with Order Management Systems (OMS), Fluent Commerce, supporting order orchestration and omni-retail processes.
• Strong experience designing and implementing RESTful APIs (OpenAPI/Swagger) and working with JSON, XML, and GraphQL.
• Experience building omni-retail and e-commerce solutions, including order lifecycle, inventory visibility, fulfilment, returns, payment flows.
• Proficiency with databases such as MySQL, and MongoDB.
• Hands-on experience with containerized and cloud-native environments, including Docker, Kubernetes, and CI/CD pipelines (GitLab).
• Experience working with event messaging systems and integration patterns (e.g., AWS SQS, Solace, Pub/Sub architectures).
• Familiarity with security best practices including OAuth2, OIDC, and IAM solutions such as Keycloak and Okta
• Experience with modern development and testing tooling, including IntelliJ, SonarQube, Datadog, Insomnia, and the Atlassian suite (Jira, Confluence).

DevOps & Tooling

• Build & IDE: IntelliJ, Maven
• Version Control: Git, GitLab
• Code Quality & Security: SonarQube, Snyk
• API Testing & Integration Tools: Insomnia, RobotFramework
• Collaboration & Documentation: Atlassian Suite (Jira, Confluence)
• Cloud technologies/platform: AWS, K8s, Docker, Helm

Soft Skills

• Strong problem solving and analytical skills.
• Excellent communication and ability to work with multinational, cross-functional teams.
• Proactive, self-driven, and eager to learn new technologies.
• Ability to work independently in a fast-paced Agile environment.

Education & Language

• Bachelor’s or master’s degree in computer science, Software Engineering, or a related field.
• Fluency in English (French or other languages is a plus).

Why Us

• Permanent contract
• Competitive salary
• Private health and life insurance from day one in the company
• Working hours: Monday to Friday
• Meal allowance on card/voucher

Equality & Opportunity for All

Representing 165 nationalities across the globe, we pride ourselves on being an equal opportunity employer, committed to providing equal employment opportunities to all applicants and employees regardless of race, religion, sex, color, age, national origin, pregnancy, sexual orientation, physical disability or genetic information, military or veteran status, or any other protected classification, in accordance with federal, state, and/or local law.