java English-speaking jobs in Trofa

.NET Developer needed for a long-term product-focused role in Lisbon. Design, develop, and maintain software components for a gas flow management product. Collaborate with cross-functional teams to translate operational challenges into digital solutions. 3+ years of experience with .NET, ASP.NET Web API, WCF, SQL Server, and Oracle databases required.

Test Automation Engineer will work with consultants and business representatives to create, maintain, and execute test scripts. Requires a Bachelor's/Master's degree in a relevant field, 1-3 years of test automation experience, and excellent English communication skills.

Optimization Scientist will model healthcare operational problems using Mixed-Integer Programming (MIP). You will translate academic research into practical solutions, formulate MIP models for scheduling, staffing, and resource allocation, and design objectives to improve efficiency.

Lead Flutter Mobile Engineer to design, architect, and deliver high-quality mobile applications. Manage and mentor a team of developers, provide technical leadership, and collaborate with stakeholders.

SAP ABAP Developer to design, develop, test, and support SAP applications across ECC and S/4HANA. Collaborate with global stakeholders, build integrations, and contribute to system performance and innovation.

Builds predictive ML models for core banking products and uses LLMs to prototype new product ideas and evaluate response quality. Partners with product, engineering, and domain teams to translate banking problems into ML and AI approaches.

The Senior Analyst, Data Science & Value Optimization will design and implement data-driven frameworks to enhance value delivery across Pricing, Pre-Sales Enablement, and Customer Success. This role requires proficiency in advanced analytics, business intelligence, and automation to support scalable solutions.

Software Engineer with +5 years of .NET development experience (C#, .NET Core, ASP.NET, Entity Framework) and experience with AWS/Azure, microservices, and containerization tools (Docker, Kubernetes). Proficiency in English (B2 level) required. Hybrid work model (3 days/week in Porto) and occasional business trips. Must be based in Portugal with Portuguese or EU citizenship or a valid Portuguese work permit.

Senior SAP FI/CO Analyst to support a global manufacturing company's SAP S/4HANA Finance transformation. Experience with SAP FI/CO modules, implementations, and S/4HANA environments required.

Build and ship LLM-powered AI features and microservices in Python. Implement retrieval workflows, prompt orchestration, and agentic capabilities. Integrate multi-provider LLMs and work with platform, data, and ontology specialists.

Application & Systems Integration Engineer will develop flexible thin film solar cells, conduct mechanical testing, and integrate solar cells into power systems.

Lead the development of AI and machine-learning solutions for complex business challenges. Leverage deep learning, reinforcement learning, and AI to uncover insights and improve business performance. Mentor other data scientists, shape QuantumBlack's R&D roadmap, and identify high-potential machine-learning initiatives. Collaborate with data engineers, machine learning engineers, and designers to build end-to-end analytics solutions.

Principal AI Engineer will own the architecture of the VLA, video, vision, and spatial model stack, enabling natural-language reasoning and autonomy across the platform. Set the AI research agenda, own the data flywheel strategy, and mentor the AI engineering team.

Lead the affiliate channel strategy, team, deals, traffic quality, and results for a digital entertainment company. Experience with Tier-1 markets, deal-making, affiliate acquisition, traffic & profitability analysis, and team management required.

Citrix Expert needed for secure, scalable, and high-performance Citrix environments. Requires expertise in Citrix CVAD, NetScaler, and ADM, as well as scripting, automation, and troubleshooting. Strong communication and collaboration skills are essential. Relevant Citrix certifications are a plus. Must reside in Portugal.

Workplace Engineer to design, manage, and optimize hybrid and cloud-based device management solutions in enterprise environments with a focus on Microsoft technologies.

Fullstack Developer to join an Agile team and contribute to the development, modernization, and maintenance of web applications.

Lead Mechanical Rotating Equipment Engineer to assist the Technical section. Updates maintenance plans, supports FPSO operational teams, develops maintenance methods, and performs technical studies. Analyzes equipment performance, coordinates repairs, and supervises receipt of materials. Requires a University Degree in Mechanical Engineering or equivalent and knowledge of TOTALENERGIES Process.

HR Business Partner for Amcor's Supply Chain, shaping and elevating people strategies across a multi-country network. Partner with senior business leaders, drive talent management, and lead change initiatives. Requires proven HR leadership in supply chain environments, experience with HR systems, and strong change management skills.

Siemens Mobility Portugal seeks a dynamic IT Systems Engineer to join its Innovation Team. The ideal candidate will design, implement, and manage networks and systems, architect technical infrastructure solutions, and lead complex projects. Strong experience in networking, cloud technologies (AWS, Azure), and operating systems (Windows, Linux) is required.