Junior SaaS Engineer

About the Role 3e is seeking a Junior SaaS Engineer to join the team in Brussels. This role centers on supporting and improving the SynaptiQ platform, a solution for renewable energy clients. The position involves a mix of technical support, product improvement, and client interaction, with opportunities for growth into technical or client-facing roles over …

Sia is on the lookout for bright and enthusiastic Junior Engineers who are dedicated to forging strong relationships and achieving impressive results. We value individuals with a proven track record in their educational pursuits, and ideally, some relevant professional experience. At Sia, we believe in empowering our employees, encouraging you to take on responsibilities swiftly as your personal growth is our priority.As a Junior Engineer Consultant, you will play a crucial role in transformation projects for our clients. Your responsibilities will include executing project tasks such as intelligent data structuring, data analysis, benchmarks, conducting interviews, facilitating workshops, process mapping, and drafting functional specifications. You will quickly step into team support roles and have the chance to actively contribute to knowledge sharing and creation through workshops, publications, and seminars within the various industries we serve.With an entrepreneurial spirit, you are prepared to join us in a rapidly growing company.

Jobgether is looking for a Senior Software Engineer to help build AI-based SaaS solutions. This position is based in Belgium and focuses on designing, developing, and implementing software that improves user experience and supports business goals. Role overview This role centers on creating software products that use artificial intelligence within a SaaS context. Collaboration with cross-functional teams is a key part of the work, ensuring that project requirements are clear and that the final products align with business needs. What you will do Design and develop software solutions for AI-driven SaaS products Implement new features and enhancements to improve user experience Work closely with colleagues from different departments to define and refine project requirements Deliver high-quality software that meets project and business objectives Requirements Experience in software engineering, with a focus on AI or SaaS solutions Ability to collaborate effectively with cross-functional teams Strong skills in designing and implementing software systems

Sia seeks a Junior Engineer to join its Energy & Utilities team in Brussels. This entry-level role offers a chance to work with seasoned engineers on projects that contribute to sustainable energy practices. Role overview The Junior Engineer will support the development and implementation of engineering solutions for energy and utilities projects. Day-to-day work involves collaborating with senior engineers to help deliver project objectives and contribute to sustainability initiatives. What you will do Assist with engineering solutions for energy and utilities projects Work alongside senior engineers to support project delivery Gain practical experience across various technical tasks Develop technical skills while advancing sustainability goals Location This position is based in Brussels.

>>> Join Our Talent Pool!By submitting your CV, you express your interest in future opportunities as a Junior Solar or Wind Engineer in Brussels, allowing us to consider you for upcoming roles.As a Junior Engineer, you will provide exceptional energy yield estimations for utility-scale solar and/or wind projects, while gradually acquiring skills in feasibility studies, Due Diligences, and Owner’s Engineering tasks, both from our office and during site inspections.Your primary responsibilities will include: Conducting energy yield calculations with industry-standard software and internal processes. Analyzing results and generating comprehensive client reports. Executing technical feasibility studies. Carrying out site inspections at various stages of project construction after receiving appropriate training. Gradually building direct communication with clients through written and verbal interactions. You will be integrated into our consultancy team, providing a dynamic environment to explore the exciting field of solar and wind energy. Initially, you will support projects led by colleagues, transitioning to project management responsibilities over time.

Sopra Steria seeks a Junior Support Engineer for its 24/7 support team based in Brussels. This role is central to daily operations, providing clients with timely assistance and effective solutions at any hour. Key responsibilities Deliver first-line support for clients, resolving technical issues as they come up Participate in a rotating shift schedule to help maintain continuous service Communicate clearly with clients and ensure prompt resolutions to their requests Work closely with team members to share knowledge and develop skills Requirements Proactive approach and eagerness to learn Comfortable collaborating within a team Ready to work shifts as part of a 24/7 schedule This position offers the chance to build technical skills within a supportive team while helping ensure reliable service for clients.

At 3E, we are committed to accelerating the global energy transition. Our flagship digital platform, SynaptiQ, is a trusted solution among renewable energy leaders for its robust, hardware-agnostic capabilities. As the energy markets evolve with increasing flexibility requirements, dynamic pricing fluctuations, and the integration of Battery Energy Storage Systems (BESS), our customers seek innovative tools to navigate and leverage these complexities. We are dedicated to product innovation to empower our clients to stay ahead of the curve, and we are in search of a Product Manager to spearhead this initiative.In this pivotal role, you will be a strategic, hands-on product leader adept at translating changing market dynamics into actionable product roadmaps. Your strengths lie in effective communication, cross-functional collaboration, and a passion for tackling challenges that demand decisive action and creative problem-solving. With a thorough understanding of SaaS products and the energy landscape, you will prioritize user experience and business value. Above all, you will be proactive, take ownership of outcomes, and be poised to develop solutions that truly make a difference.As the Product Manager for Flexibility, you will be the driving force behind our flexibility solutions, overseeing everything from market analysis and product strategy to feature delivery and go-to-market execution. You will collaborate closely with our commercial, technical, and research teams, as well as external partners, to create a product that stands out in this rapidly evolving sector. Key Responsibilities:Market intelligence & customer discovery: Analyze trends in energy flexibility, regulations, and the competitive landscape. Engage with customers to gather insights that keep us ahead of the competition.Vision & roadmap: Establish a clear vision and develop a prioritized roadmap that aligns market needs with technical capabilities.Go-to-market & enablement: Define our positioning, pricing, and packaging for flexibility offerings. Collaborate with marketing to produce impactful materials and ensure commercial teams are well-prepared for launch.Cross-functional leadership: Work closely with engineering, UX, R&D, and business teams to deliver high-quality features that meet customer requirements.Stakeholder communication: Serve as the central point for all flexibility-related matters, ensuring alignment among internal and external stakeholders.Partnership development: Identify and cultivate partnerships with key players such as VPPs, EMS, BMS, integrators, traders, and forecasting experts to enhance our platform.Operational support: Equip sales and operations teams with the necessary tools, training, and information to ensure customer success.

Are you looking to kick-start your career in the dynamic field of bid management? Join our team at arhs as a Junior Bid Officer. In this role, you will support our experienced bid managers in crafting compelling proposals and engaging with clients. You will gain invaluable experience while working with a team of professionals dedicated to excellence in bid processes.If you are passionate about providing top-notch service and are eager to learn, we want to hear from you!

Join our dynamic team at Netcompany1 as a Junior Application Support Agent, where you will play a crucial role in ensuring the seamless operation of our cutting-edge applications. You will provide exceptional support to our clients, troubleshoot issues, and work collaboratively with various teams to enhance user experience.

Join Roland Berger as a Junior Consultant and become a key player in the consulting field. You will collaborate with teams on challenging projects, utilizing your analytical skills to provide innovative solutions to our clients.

Join Eurofins as a Junior IT Project Manager through our exciting V.I.E Programme! In this dynamic role, you will collaborate with cross-functional teams, manage project timelines, and ensure the successful implementation of IT projects that enhance our operational capabilities. This is an excellent opportunity to kick-start your career in project management within a global organization dedicated to innovation and excellence.

Join a distinguished construction contractor renowned for executing exceptional building, renovation, and redevelopment projects throughout Belgium. The company's impressive portfolio encompasses residential, office, healthcare, educational, and mixed-use buildings. With operations spanning both public and private sectors, they are also part of a larger multidisciplinary construction group boasting a century of experience and technical prowess.As a Junior Site Superintendent - Buildings, you will be at the forefront of on-site operations, ensuring that projects are executed safely, on schedule, and meet high-quality standards. This role involves coordinating subcontractors, managing site teams, and assisting in the implementation of work plans while gaining invaluable exposure to technically challenging building projects. This position offers a clear trajectory towards senior site leadership roles.

About the Role Eurofins Scientific is looking for a Junior Business Controller to join the team in Brussels as part of the V.I.E Programme. This position supports financial operations and assists with strategic decision-making across the business. What You Will Do Assist with financial analysis and reporting Support budgeting and forecasting activities Help prepare data for management reviews Contribute to projects that improve financial processes Who We’re Looking For Strong analytical skills Interest in finance and business operations Motivation to learn and develop new skills Ability to work well in a team This role is part of the V.I.E Programme and based in Brussels.

Who Are We?Trasys International is a vibrant global organization, recognized as a trusted partner to EU Institutions. With a robust commitment to excellence and a 30-year legacy of delivering top-notch solutions, we are devoted to empowering our clients to navigate the complexities of digital transformation. We aim to provide the right talent at the right time to meet evolving challenges. We continuously seek skilled professionals eager to engage in demanding international projects and deliver high-quality results in diverse, multicultural settings. Our expertise spans modernization of solutions, digital workspaces, cloud technologies, and IT security. Our headquarters are located in Brussels, complemented by our active offices across Europe, including Luxembourg, Amsterdam, Athens, Stockholm, and Geneva.Are You the Right Fit?We are currently searching for a Junior Enterprise Architect to join our team in Brussels, serving one of our key clients within the European Institutions. We are looking for individuals who excel in large-scale, complex environments and preferably have experience in multicultural public-sector or institutional settings.Your Responsibilities (Non-Exhaustive)As a Junior Enterprise Architect, you will be pivotal in aligning the organization's business goals with its technology strategy.Business & Architecture StrategyDevelop business architecture models that align with the organization’s strategic objectives.Ensure that project and program strategies are fully integrated and consistent with business priorities.Create and implement a long-term business vision along with a multi-year architecture roadmap.Governance, Analysis & OptimizationIdentify optimization opportunities and cost-reduction measures across IT and business domains.Evaluate existing systems to detect discrepancies, inefficiencies, security risks, or vulnerabilities.Conduct research to recommend improvements in operations, processes, or technology.Guidance & CommunicationProvide expert input on business architecture, systems processes, and enterprise-wide design principles.Facilitate group sessions and stakeholder workshops.Present architectural concepts and recommendations to diverse audiences.

Who are we?Trasys International is a vibrant global organization recognized as a trusted partner of EU Institutions. With an unwavering commitment to excellence and a strong 30-year track record, we dedicate ourselves to empowering our clients through effective digital transformation. Our mission is to equip our clients with the right talent, at the right time, and for the right tasks. We are on the lookout for talented individuals eager to contribute to challenging international projects and deliver high-quality results in multicultural settings. Our extensive service offerings include solution modernization, digital workspaces, cloud technologies, and IT security. Headquartered in Brussels, we maintain active accounts and offices across Europe in cities such as Luxembourg, Amsterdam, Athens, Stockholm, and Geneva.Is this YOU?We are seeking a Junior Project Manager to support one of our key clients, a European Institution based in Brussels. This role is ideal for individuals accustomed to large-scale project management in multicultural public sector environments.

Join our dynamic team as a Junior Financial Accountant, where you will play a vital role in supporting the daily financial operations of our International Finance & Accounting department. This position is key to ensuring smooth accounting processes across all company entities.In this role, you will:Assist in the processing and booking of Accounts Payable (AP) and Accounts Receivable (AR) invoices, alongside preparing financial statements.Analyze aging reports and facilitate cash collection efforts.Prepare and manage payments within the banking system.Contribute to the monthly and quarterly balance sheet accounts review.Support the completion of VAT declarations, tax payments, and VIES declarations.Serve as the primary contact for vendors and engage with various internal and external stakeholders.Collaborate with the Financial Accountant on General Ledger (GL) accounting processes.Assist in the monthly, quarterly, and year-end closing activities.Help with posting basic journal entries and maintaining accurate financial records.Prepare and update reconciliations for vendors and clients.Ensure proper documentation is maintained for audits and internal reviews.Work closely with internal teams (AP, AR, GL) to address daily accounting queries.

Moore welcomes recent graduates to join as Junior Consultants in Accountancy at the Brussels office, starting in September 2026. The Young Graduate program is designed to build a solid foundation in accounting and taxation, with practical support as you launch your career. This position suits those who enjoy working with numbers and want to contribute to the growth of entrepreneurs and their businesses. Main responsibilities Collaborate with colleagues to manage assigned accounting files, ensuring accuracy and efficiency. Prepare periodic VAT returns and complete related formalities within deadlines. Keep bookkeeping up to date, with a focus on live accounting and interim reporting. Handle year-end closings for sole proprietorships, corporations, and legal entities, as well as both personal and corporate tax returns. Consult regularly with senior team members, reporting progress to maintain quality and continuity. What we look for Interest in numbers and taxation, paired with a desire to support entrepreneurs. Commitment to delivering quality work and striving for excellence. Initiative and a proactive approach to advancing tasks. Strong team spirit, working closely with colleagues and clients as a reliable partner. Willingness to share knowledge and inspire others, both in meetings and informal discussions. Location This position is based at Moore's Brussels office, in Brussels Hoofdstedelijk Gewest, België.

Role overview Netcompany1 seeks a Junior Application Support Agent for a short-term assignment in Brussels. The position centers on supporting the team with troubleshooting and resolving application issues, ensuring clients continue to receive dependable service throughout the engagement. Key responsibilities Assist with diagnosing and resolving application problems Support the team in providing timely solutions to client requests Help maintain service quality during the assignment period Location and duration This role is based in Brussels and is intended as a short-term engagement.

About Trasys International Trasys International partners with EU Institutions, delivering IT solutions for over 30 years. Headquartered in Brussels, the company supports digital transformation for public sector clients across Europe. Service areas include solution modernization, digital workspaces, cloud technologies, and IT security. Offices and active accounts span Luxembourg, Amsterdam, Athens, Stockholm, and Geneva. Role Overview: Junior Java Developer (Near-Site in Brussels) This Junior Java Developer role supports a key European Institution client in Brussels. The position focuses on Java development within a large-scale, multicultural public sector environment. What We Look For Experience in Java development, ideally in sizable project teams Background working in multicultural or public sector settings Trasys International welcomes professionals motivated to contribute to international projects and deliver results in diverse teams.

Exciting Opportunity: BI Data Engineer (Data Lakes / Data Lakehouses)Trasys International is a vibrant global enterprise committed to supporting EU Institutions through innovative solutions. With over 30 years of experience, we pride ourselves on our ability to deliver top-tier services that empower our clients in their digital transformation journeys. Our mission is to match exceptional talent to the right opportunities, ensuring that we meet the evolving challenges of the tech landscape. We are constantly seeking skilled professionals ready to engage in impactful international projects and thrive in diverse environments. Our portfolio encompasses a range of services, including modernization of IT solutions, cloud technologies, digital workspaces, and IT security, with our headquarters located in Brussels and offices across Europe including Luxembourg, Amsterdam, Athens, Stockholm, and Geneva.Are You the One?We are currently on the lookout for a proactive BI Data Engineer to join our team for one of our primary clients located in Brussels, a European Institution. This role will involve the design of cutting-edge Business Intelligence (BI) architectures, emphasizing data lakes and data lakehouses. Key responsibilities include:Crafting BI architectures tailored for various environments with a strong emphasis on security and compliance.Evaluating business requirements for data pipelines and reporting solutions.Executing ETL/ELT processes and establishing data virtualization layers.Building data models, reporting applications, and refining database schemas.Performing database performance evaluations, instituting data quality frameworks, and defining testing protocols.Generating technical documentation and overseeing BI systems.Ensuring data security, optimizing BI platforms, and facilitating self-service BI capabilities.Required Expertise and Technologies:Design of enterprise data warehousesData lake and lakehouse design methodologiesProficiency in relational and non-relational databasesExpertise in SQLFamiliarity with BI reporting and analytics toolsExperience with ETL and ELT toolsKnowledge of data flow modeling toolsUnderstanding of OLAP technologies and data mining toolsExperience with near real-time data ingestion and Change Data Capture (CDC) technologiesCloud-based BI architecturesData governance and observability practices