freelance English-speaking jobs in Maia

Technical Leader with 6+ years of experience required. Responsibilities include defining and maintaining solution architecture, ensuring system scalability and sustainability, and leading technical decision-making. Strong Java, Spring Boot, and API experience is essential.

Collaborate with hiring managers to define job requirements and create engaging job advertisements. Conduct candidate preselection and support student-oriented events.

This non-billable engineering leadership role focuses on team development, hiring, retention, and workflow improvement. The ideal candidate has strong technical acumen and a passion for people, with experience in performance reviews, training, and mentorship.

Provides administrative and recruitment coordination support across the employee lifecycle. Supports hiring managers, onboarding processes, and HR reporting. Maintains employee records, prepares documentation, and assists with HR projects.

Supports financial planning, analysis, and reporting to ensure accuracy and compliance with business objectives. Provides financial support to senior management for decision-making.

Senior game designer for mobile games (casual or hybrid casual) with experience from inception to live ops. Design and refine gameplay systems, UX, progression, and monetization. Translate product goals into production-ready designs and work with cross-functional teams.

QA Engineer focused on manual testing of web-based portal applications. Responsibilities include functional, regression, exploratory, and smoke testing, defect tracking, and collaborating with developers and product owners.

Senior DevOps Engineer to build and operate a global public cloud infrastructure platform. Evaluates product designs, partners with product development teams, and implements infrastructure automation. Requires 5+ years of cloud infrastructure engineering experience, preferably AWS and Oracle Cloud. Strong Linux systems administration, networking, and scripting skills are essential.

Design, build, and maintain enterprise-grade dashboards, reports, and financial reporting solutions using SAP Analytics Cloud (SAC), SAP Analysis for Office (Af O), and other front-end tools.

Senior Backend Engineer (Tech Lead) to join the Accounting Integrations team. Drive technical direction and quality standards for integrations. Expertise in server-side languages, especially Kotlin, and experience with distributed systems, microservices, and cloud environments. Lead initiatives to enable scale and improve ways of working. Collaborate with cross-functional teams and external partners. Mentor and upskill other engineers.

The Brand Manager for Bledina is responsible for driving sustainable growth and reinforcing brand relevance in the Early Life Nutrition category. The role focuses on building a trusted and engaging brand through impactful communication, activation, and consumer engagement initiatives.

Backend Engineer to design, build, and deploy microservices on GCP. Experience with Java, Spring Boot, Kafka, Redis, and Kubernetes required. Strong ownership mindset and experience working with AI in a structured way are essential.

Build and maintain a data stewardship platform for Open Data, collaborating with engineers and product managers. Design APIs, business logic, and user interfaces using Python and Type Script.

Revenue Marketing Associate will support demand generation and pipeline acceleration programs across the UK and EMEA region. Responsibilities include executing targeted campaigns, collaborating with sales teams, and tracking campaign performance metrics. Requires 3+ years of B2B marketing experience, familiarity with marketing automation platforms, and strong organizational skills.

Research grant for a Master's graduate enrolled in a non-degree program at the Faculty of Sciences of the University of Lisbon. The grant is funded by Programa Regional de Lisboa (LISBOA 2030), through FEDER funds, within the scope of the Project “CoastNet: Rede Portuguesa de Monitorização Costeira”. The successful candidate will contribute to content production, dissemination, and communication for the CoastNet infrastructure project.

The Product Portfolio Manager manages a product line portfolio, ensuring strategic alignment, financial performance, and operational efficiency. This role requires experience in managing product lines, ideally in C4ISR, Cyber, or Education and Training. The successful candidate will have strong analytical, business analysis, and reporting skills, as well as experience with Agile Product Management methodologies.

Embedded Systems Engineer Innovation will design, test, and validate new hardware and software for remote-control products. Responsibilities include developing prototypes, collaborating with cross-functional teams, and ensuring compatibility with cloud platforms. Requires a Bachelor's degree and proficiency in C, C++, Python, or Java, along with experience with RTOS, ARM Cortex-M, and communication protocols.

DataSmart seeks a Network Engineer to manage and operate data center network infrastructures, ensuring high availability and service continuity. Responsibilities include network troubleshooting, supporting Unified Communications and Identity & Access Control solutions, implementing network security controls, and operating transport and backbone networks. Requires 4+ years of experience supporting complex network infrastructures, strong knowledge of data center networking, network security, and transport networks, and hands-on experience with Cisco technologies.

Inside Sales professional to deliver results and achieve goals independently. Support strategic growth of clients, build relationships, and present tailored proposals. Must have fluency in Spanish, 2+ years of account management experience in an SME environment, and knowledge of marketing solutions, printing, and promotional gifts.

Provide Dutch-speaking customer service via phone, email, and chat. Act as a brand ambassador and ensure a positive customer experience.