Senior Backend Developer At Uni Systems Brussels jobs in Brussels – Browse 735 openings on RoboApply Jobs

Senior Backend Developer At Uni Systems Brussels jobs in Brussels

Open roles matching “Senior Backend Developer At Uni Systems Brussels” with location signals for Brussels. 735 active listings on RoboApply Jobs.

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Uni Systems logo
Full-time|On-site|Brussels, Brussels, Belgium

Join Uni Systems, where we are dedicated to transforming digital dreams into reality. We are expanding our team in Brussels, Belgium, and we are in search of a skilled Cybersecurity Analyst to become part of our UniQue team.Your Contributions to the TeamSecurity Monitoring & DetectionDevelop and evaluate detection rules within Splunk and Splunk Enterprise Se…

Mar 5, 2026
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Uni Systems logo
Full-time|On-site|Brussels, Brussels, Belgium

At Uni Systems, we are dedicated to transforming digital aspirations into tangible outcomes. Our growth journey continues, and we are seeking a talented Enterprise Architect to become a vital part of our UniQue team.Key Responsibilities:Engage in the agile development process, making informed decisions regarding priorities, business value, and functionalities for the agile development team.Assess and validate requirements in collaboration with relevant data space stakeholders.Design solutions that integrate IT tools with business process enhancements, leveraging an extensive understanding of specific data spaces and initiatives.Participate in decision-making for scheduling user stories into sprints.Conduct reviews of deliverables and demonstrate product versions/software functionalities at the conclusion of each sprint.Facilitate live product demonstrations post-sprint.Oversee and enhance progress reporting mechanisms.Support both internal and external communications by fostering transparency and effective information dissemination.Help prioritize and resolve defects and bugs.Collaborate with business analysts, architects, stakeholders, project leaders, and developers.

Feb 12, 2026
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Uni Systems logo
Full-time|Remote|Remote — Brussels, Brussels, Belgium

Uni Systems is expanding its remote team in Brussels and seeks a Professional Front-end Developer. This position centers on building digital solutions and collaborating with colleagues on enterprise-scale projects. Role overview The Professional Front-end Developer will work on designing and developing scalable website frameworks and software. The team values practical solutions and close cooperation across various projects. What you will do Design and implement website frameworks and software that can adapt as requirements grow. Develop user-facing features with a focus on usability and responsive design. Create and document APIs (REST and SOAP), and assist with backend business logic. Set up and manage server environments, databases, and components for large applications. Analyze data, build models, and apply security and data protection standards. Join technical design sessions and architecture reviews with the team. Maintain code quality, introduce automation, and resolve technical issues. Write technical documentation and communicate effectively with both technical and non-technical team members. Location This is a remote role. The team is based in Brussels, Belgium.

Apr 27, 2026
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Uni Systems logo
Full-time|Remote|Remote — Brussels, Brussels, Belgium

Join Uni Systems, where we are dedicated to transforming digital visions into tangible results. As we continue to expand, we are in search of a talented Data & Business Analyst to become a vital part of our UniQue team.In this pivotal role, you will be responsible for:Conducting in-depth analyses of business processes and user requirements to establish precise data specifications.Engaging with end-users, key users, and technical teams to ensure seamless communication.Translating business needs into insightful reports and visualizations through comprehensive data analysis.Establishing and maintaining data quality standards to guarantee the accuracy, consistency, and reliability of our data.Collaborating with stakeholders to identify and resolve data quality concerns.Supporting the go-live phase of validated solutions.Sharing your knowledge and expertise with our internal consulting team.Creating test plans and scenarios aligned with business specifications.Facilitating clear communication between technical and non-technical stakeholders to align on business needs and data requirements.Assessing the effects of changes in business processes on the data warehouse.Working with stakeholders to manage change requests, ensuring alignment with overall business and data strategies.Conducting demonstrations of reports and dashboards for relevant parties.Organizing workshops with stakeholders to foster collaboration.Partnering closely with data architects and database developers to design data models that meet business objectives.Translating business requirements into actionable business cases, detailing the As Is vs To Be and providing a Fit-Gap analysis.Collaborating with business users and technical teams to gather and document data necessities.Advising customers on selecting the most effective solutions to enhance their daily operations.Documenting functional specifications clearly for the development team.Ensuring that all documentation is current and accessible to stakeholders.Testing and validating proposed reports and dashboards to ensure they accurately reflect data from source systems.

Feb 19, 2026
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Uni Systems logo
Full-time|On-site|Brussels, Brussels, Belgium

Join Uni Systems in bringing digital transformations to life! We are expanding our team and seeking a skilled Business Analyst to become part of our innovative UniQue team.Key Responsibilities:Evaluate and structure business requirements, converting them into functional and technical specifications.Assist business units in identifying suitable digital solutions that adhere to standards of reuse and effective policymaking.Analyze and compare various solution alternatives (corporate services, existing systems, cloud, or low-code solutions) and provide recommendations based on functional, technical, security, and governance aspects.Engage in IT governance processes, including documentation preparation and input provision.Keep abreast of technological trends and evaluate their potential applicability.Facilitate the identification, analysis, and prioritization of AI use cases, considering feasibility, risks, value, and alignment with corporate guidance and regulations.Collaborate with technical experts, service providers, and corporate services to support the evaluation and implementation of AI and innovative digital solutions.Assist in the deployment, optimization, and adoption of Microsoft 365 collaboration tools.

Feb 13, 2026
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Uni Systems logo
Project Manager

Uni Systems

Full-time|On-site|Brussels, Brussels, Belgium

At Uni Systems, we are committed to transforming digital visions into reality. As we continue to expand, we seek a dynamic Project Manager to become an integral part of our UniQue team.Key Responsibilities:Plan and manage projects from IT, communication, and business perspectives, contributing to the enhancement of platform architecture, structure, and user experience while providing user support.Monitor content accuracy and coordinate updates with stakeholders to ensure timely availability.Oversee platform governance, user access, and security policies.Engage with stakeholders, documenting discussions, and ensuring follow-up actions are completed.Develop, manage, and nurture an online community.Prepare feasibility studies and business cases to inform strategic decisions regarding platform upgrades and transitions (e.g., potential migration from Confluence Wiki to SharePoint).Organize and facilitate meetings, webinars, and training sessions for internal and external users, including drafting documentation (such as user manuals and web procedure manuals), developing coaching materials, and presenting projects on online communication platforms (Confluence Wiki, MS Teams, Jira).Create and manage online collaborative sites (Confluence Wiki, MS Teams, Jira).

Jan 9, 2026
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Uni Systems logo
Full-time|On-site|Brussels, Brussels, Belgium

At Uni Systems, we are dedicated to transforming digital visions into tangible realities. As we continue to expand, we are seeking a skilled Test Automation Specialist to join our innovative UniQue team.Key Responsibilities:Design, prepare, and oversee automated testing processes.Contribute to the development of an integration plan for automated testing within the overall testing framework.Evaluate tools and technologies to identify the best automation solutions aligned with the DevSecOps methodology.Create a robust approach and methodology for developing a test automation architecture.Design and develop automated testing solutions that fulfill business requirements, leveraging continuous integration technologies, particularly focusing on backend and web service interfaces.Facilitate the transition of testing from manual to automated processes.Generate automated test reports and collect relevant metrics.Provide support during various stages of testing, analysis, technical documentation, deployment, evaluation, and reporting.

Sep 26, 2025
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Uni Systems logo
Full-time|Remote|Remote — Brussels, Brussels, Belgium

At Uni Systems, we are dedicated to transforming digital visions into tangible realities. As we continue to grow, we are seeking a Senior Data Scientist to become a vital part of our innovative UniQue team.Key Responsibilities:Gather business requirements and design advanced data mining solutions, while evaluating and implementing existing data mining, machine learning, and business intelligence tools.Specify and design user-friendly presentation interfaces that optimize usability and user experience.Identify, gather, convert, and refresh various data types and sets from multiple sources (e.g., ETL processes).Develop data models tailored to specific problem statements.Engage in scripting and programming tasks.Contribute to the design and execution of analytics architecture, including considerations for performance, physical design, and capacity.Document processes and collaborate with other project teams to manage interdependencies.

Dec 4, 2025
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Altersolutions logo
Contract|On-site|Brussels

Join Altersolutions as a Senior Java/Angular Developer in Brussels. We are looking for a talented individual who is passionate about technology and eager to contribute to innovative projects. This role offers an opportunity to work in a dynamic environment where your skills will directly impact the success of our clients.

Jul 7, 2025
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Uni Systems logo
Full-time|On-site|Brussels, Brussels, Belgium

Join Uni Systems, where we transform digital visions into impactful realities. We are expanding our talented team and are in search of a skilled Python Developer specializing in AI and Machine Learning to contribute to our innovative projects.Key Responsibilities:Design, develop, and implement comprehensive AI/ML solutions for operational settings.Utilize Python for the execution of Natural Language Processing (NLP), Large Language Models (LLM), and foundational data science projects.Enhance and sustain AI/ML models, focusing on performance, scalability, and reliability.Engage with stakeholders to ascertain business requirements and convert them into effective AI strategies.Create and update thorough documentation for models, workflows, and data pipelines.Articulate and defend AI design choices during technical discussions confidently.

Dec 9, 2025
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Talan logo
Full-time|On-site|Brussels

Join Talan as a Fullstack Developer in Brussels and play a vital role in shaping innovative solutions that drive our clients' success. As a member of our dynamic Engineering & Development team, you will collaborate on diverse projects, utilizing your expertise in both front-end and back-end technologies.

Apr 1, 2026
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Netcompany logo
Full-time|On-site|Brussels

Join the dynamic team at netcompany1 as a Full Stack Developer and play a pivotal role in shaping innovative digital solutions.As a Full Stack Developer, you will:Architect and develop engaging website structures, user interfaces, and responsive web applications.Craft back-end applications while implementing essential business logic.Set up and manage servers, databases, and APIs to guarantee seamless operations.Engineer scalable software solutions and optimize them for cross-platform performance.Establish robust security protocols and data protection strategies.Produce clean, efficient code while adhering to organizational coding standards and integrity.Conduct testing, debugging, and data analysis to identify and resolve issues effectively.Lead projects when necessary, produce technical documentation, and ensure alignment with technical and user requirements.

Feb 5, 2026
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Uni Systems logo
Full-time|Remote|Remote — Brussels, Brussels, Belgium

At Uni Systems, we are dedicated to transforming digital aspirations into tangible outcomes. As we continue to expand our team, we are excited to invite a skilled Cloud DevOps Engineer to become a part of our UniQue team.Key Responsibilities:Configure and manage cloud and hybrid infrastructure along with various applications.Establish configuration management and deployment strategies.Guarantee the availability and stability of production environments, both cloud-based and on-premises.Devise and create software automation and scripts to orchestrate cloud and virtualization technologies aligned with project scope, timelines, and expectations, with a strong emphasis on Operations.Provide expert technical support to customers utilizing Cloud Platform products, solutions, and APIs, concentrating on Operations.Design and implement DevSecOps capabilities such as observability, continuous monitoring, and traceability.Collaborate with development teams to troubleshoot software and other issues related to cloud deployment infrastructure and code deployed on platforms like Database and/or Middleware.Oversee daily deployment and maintenance operations.Analyze and optimize information systems performance.Conduct security administration and monitoring, adhering to established security protocols.

Mar 11, 2026
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Nuvei logo
Full-time|On-site|Brussels, Brussels, Belgium

In the fast-paced world of payment processing, businesses are increasingly seeking trusted and strategic partners to fuel their growth.Introducing Nuvei, a leading Canadian fintech company dedicated to accelerating the success of clients globally. Our cutting-edge, modular, and scalable technology empowers businesses to seamlessly accept next-generation payments, explore diverse payout options, and leverage comprehensive services including card issuing, banking, and risk and fraud management. With a presence in over 200 markets, local acquiring in 50 countries, and support for 150 currencies alongside 700 alternative payment methods, Nuvei equips clients with the tools and insights needed to thrive in both local and global markets through a single integration.At Nuvei, we embody our core values and are passionate about tackling complex challenges. We are committed to continuously enhancing our products and delivering exceptional customer service. We are always on the lookout for extraordinary talent to join us on our journey! Your MissionWe are seeking a dynamic and results-oriented Senior Business Development Manager to join our rapidly growing Benelux team. Reporting directly to the Vice President of Sales for Benelux and Nordics, you will play a pivotal role in expanding Nuvei’s market presence and driving strategic growth throughout the region.In this position, you will help accelerate the distribution and adoption of Nuvei’s innovative payment solutions, focusing primarily on the ecommerce, financial services, digital goods, and marketplaces sectors. Your responsibilities will include identifying new business opportunities, forging long-lasting partnerships, and collaborating closely with cross-functional teams to deliver exceptional value to our clients and partners.Key Responsibilities:Build and manage a robust pipeline of sales opportunities, ensuring accurate sales forecasts are provided to senior management.Develop and implement innovative sales strategies while identifying high-value prospects.Present sophisticated technical products and pioneering solutions to C-level executives.Directly establish and nurture new sales partnership programs with major merchants in the Benelux region.Translate client business requirements into technical specifications, leveraging Nuvei solutions to address customer needs.Maintain strong pipeline management through Salesforce, ensuring accurate performance forecasts and consistent results among Tier 1 and Tier 2 prospects.

Feb 18, 2026
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Netcompany logo
Full-time|On-site|Brussels

Join Netcompany at the cutting edge of technology as a Senior Enterprise Java Architect – Backend & Integration. In this pivotal role, you will:Offer expert insights into the development of enterprise policies and strategies concerning content, records, archives, and information management, which includes capture, selection, retention, and digital preservation.Lead the architecture, design, and upkeep of records, archives, and information management systems while supervising the technical execution of new or updated policies.Conduct requirement analysis and define needs for content, records, archives, and information management systems, creating functional and technical specifications for backend and integration solutions.Design system integration and data migration strategies for legacy repositories, ensuring seamless transitions with minimal disruption.Develop and sustain robust solutions for long-term digital preservation and archiving, complying with legal, security, and compliance standards including encryption, digital signatures, secure access, and data protection.Establish and apply metadata standards for content and records management to facilitate effective archival description and retrieval.Design and implement scalable data publication and exchange solutions, utilizing linked open data, semantic web technologies, and modern API/integration frameworks.

Feb 26, 2026
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Coreso logo
Full-time|On-site|Brussels, Brussels, Belgium

Join Coreso on a thrilling journey as we lead the charge in the European energy sector!Your Future at Coreso Located in the vibrant European district of Brussels, Coreso is an innovative small-to-medium enterprise (SME) seeking a dedicated Power Systems Engineer who is passionate about grid operations, energy security, and international collaboration.In this pivotal role, you will be instrumental in enhancing and securing electricity exchanges across Europe. Utilizing cutting-edge grid security analysis, capacity calculations, and collaboration with Transmission System Operators (TSOs), you'll ensure the stability and reliability of the interconnected European power network.Projected Start Date: April - June 2026Your Mission Awaits!As a Power Systems Engineer, your responsibilities will include both shift-based grid operations and project-based office work to uphold the stability of Europe's energy grid.Key Shift Responsibilities:Conduct cross-border capacity calculations – Evaluate and allocate energy exchange capacities between European nations.Oversee grid security – Assess network conditions to identify and address potential risks, such as overloads and instabilities.Execute emergency measures – Collaborate closely with TSOs to implement coordinated remedial actions.

Jan 14, 2026
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Netcompany logo
Full-time|On-site|Brussels

Are you ready to explore the dynamic role of an Information Systems Support Specialist at Netcompany? We are on the lookout for a meticulous and seasoned professional to oversee the quality and delivery of our Information Systems (IS) support services. This position is vital for fostering effective collaboration between support and project teams, upholding service excellence, and delivering outstanding user support.In your role as an Information Systems Support Specialist, you will:Lead the organization, implementation, and maintenance of IS support services.Facilitate coordination between internal support teams and external project teams to ensure efficient service delivery.Manage user requests, provide guidance on information system usage, and handle IS-related incidents, including organizing the reporting process with SAP Business Objects.Contribute to the creation and organization of user documentation and oversee the design and execution of IS and ICT training initiatives.Develop and implement effective support processes to boost efficiency and service quality.Monitor and assess the overall quality of IS services.Coordinate and manage collaborative tools, including wiki sites, collaborative platforms, and social networks.Actively engage in user, service, and project meetings.

Feb 19, 2026
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Sopra Steria logo
Full-time|On-site|Brussels

Join our dynamic team as a Drupal Developer where you will leverage your expertise to create, enhance, and maintain robust web applications using Drupal. You will collaborate closely with cross-functional teams to implement engaging user experiences and efficient backend solutions.

Jan 9, 2026
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Sopra Steria logo
Full-time|On-site|Brussels

Join our innovative team at Sopra Steria as a Java Developer, where you will play a crucial role in developing high-quality software solutions. You will work collaboratively with other developers and stakeholders to design, implement, and maintain Java-based applications. If you are passionate about technology and eager to contribute to exciting projects, we want to hear from you!

Apr 24, 2025
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sia logo
Full-time|On-site|Brussels

Join our dynamic team as a Senior Consultant at sia, where you will leverage your expertise to deliver high-impact solutions for our clients. As a pivotal member of our consulting team, you will engage with diverse projects, drive strategic initiatives, and help shape the future of our clients' businesses.

Mar 6, 2026

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