Telecom Sector | Java Backend Developer, Permanent contract

Devoteam; Lisboa; Hybrid; EUR 65,000 - 90,000; Full time

Job summary

Devoteam is seeking a skilled Backend Java/ServiceNow Consultant to join our international teams. You will design and implement scalable Java backends with Spring Boot, APIs, and data platforms, while collaborating with frontend teams and DevOps in a remote-capable setting.

You will also design ServiceNow configurations, integrations, and customizations, guiding junior staff and ensuring quality through testing. Fluency in English is essential as we operate across multiple regions.

Qualifications

• Bachelor's degree in Computer Science or related field.
• 5+ years of backend development experience with Java.
• Strong experience with Spring / Spring Boot.
• Proven experience designing and consuming RESTful APIs.
• Solid experience with MongoDB and Elasticsearch.
• Experience with large-scale or data-intensive systems.
• Familiarity with React.js or frontend tech (nice to have).
• Experience with Git and collaborative workflows.
• Experience in Agile environments.
• Fluency in English (spoken and written).
• Ability to work autonomously in a remote setup.

Responsibilities

• Design, configure, and implement ServiceNow solutions per business requirements.
• Translate business needs into scalable technical configurations and designs.
• Customize the platform following best practices and coding standards.
• Develop integrations with third-party systems (REST, SOAP, file-based transfers).
• Deliver well-documented, tested customizations including unit/structured testing.
• Mentor junior team members and flag risks and dependencies.
• Identify risks or improvement opportunities within scope of work.

Skills

Java

Spring Boot

REST APIs

MongoDB

Elasticsearch

React.js

Git

Agile

English fluency

Education

Bachelor's degree

Tools

ServiceNow

Job description

At Devoteam, we believe that technology with strong human values can actively drive change for the better. Discover how Tech for People unlocks the future, creating a positive impact on the people and the world around us. We are a global leading player in Digital Transformation for leading organizations across EMEA, with revenue of €1B. We believe in transforming technology to create value for our clients, partners and employees in a world where technology is developed for people. We are proud of the culture we have built together. We are proud of our people at the service of technology. We are proud of our diverse environment. Because we are #TechforPeople. Join our multidisciplinary team of Cloud experts, Designers, Business consultants, Security experts, Engineers, Developers, and other extraordinary talents, spread across more than 20 EMEA countries. Become one of our +10.000 tech and business leaders on cloud, data, and cyber security. Let’s fuse creativity with technology together and build innovative solutions that actively change things for the better.

Job Description

• Develop and maintain scalable, efficient, and high-performance backend applications using Java and Spring Boot;
• Design, implement, and maintain RESTful APIs to support IoT platforms and web applications;
• Work with large volumes of data related to IoT SIM connectivity, monitoring, and management;
• Integrate backend services with MongoDB and Elasticsearch;
• Collaborate with frontend teams to integrate server-side logic with web applications (React.js knowledge is a plus);
• Optimize application performance, scalability, and reliability;
• Participate in code reviews and contribute to continuous improvement of development standards and best practices;
• Troubleshoot, debug, and resolve complex technical issues;
• Collaborate with international teams in an English-speaking environment.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or a related field;
• 5+ years of experience in backend development using Java;
• Strong experience with Spring / Spring Boot;
• Proven experience designing and consuming RESTful APIs;
• Solid experience with MongoDB and Elasticsearch;
• Experience working with large-scale or data-intensive systems;
• Familiarity with React.js or frontend technologies (nice to have);
• Experience with Git and collaborative development workflows;
• Experience in Agile environments;
• Fluency in English (spoken and written);
• Strong problem-solving skills and ability to work autonomously in a remote setup.

Additional Information

The Devoteam Group works for equal opportunities, promoting its employees based on merit and actively fights against all forms of discrimination. We are convinced that diversity contributes to the creativity, dynamism and excellence of our organization. All of our vacancies are open to people with disabilities.

As a ServiceNow Technical Consultant at Devoteam, you design, configure, and implement ServiceNow solutions that translate business requirements into robust, scalable technical configurations. You apply ServiceNow best practices to decide when to configure out-of-the-box and when tailored customization is required. Alongside hands-on delivery, you mentor junior team members and proactively flag risks, dependencies, and improvement opportunities within your scope of work.
At Devoteam, we lean into change and embrace emerging technologies from day one. Every consultant receives dedicated AI training and modern tools designed to streamline daily work, amplify expertise, and fast-track learning.

Responsibilities

• Design, configure, and implement ServiceNow solutions according to business and functional requirements
• Translate business needs into scalable technical configurations and detailed technical designs
• Customize the platform when required, following ServiceNow best practices and coding standards
• Develop integrations with third-party systems (REST, SOAP, file-based transfers)
• Deliver well-documented, thoroughly tested customizations, including unit testing and structured testing approaches
• Mentor and guide junior team members on both technical and functional topics
• Proactively identify risks, dependencies, or improvement opportunities within your scope of work