freelance English-speaking jobs in Valongo

The Public Relations Manager supports initiatives to enhance visibility and strengthen the hotel's reputation. The role secures media coverage, manages social media, and contributes to the annual PR plan. The ideal candidate has a Bachelor's degree in a related field and at least three years of experience in public relations.

Finance Specialist (Accounts Payable) will manage purchase orders, coordinate with vendors, process invoices, and reconcile vendor statements. Requires a Bachelor's Degree in Finance/Accountancy/Business, fluency in English, and experience in Accounts Payable or Purchase to Pay.

Salesforce DevOps Engineer designs, builds, and supports scalable Salesforce solutions. Responsibilities include developing CI/CD pipelines, defining release governance, and collaborating with teams to deliver technical solutions. Requires experience with Salesforce development, DevOps, and release engineering.

Backend Expert for global HR benefit and compensation platform. Coordinate external providers, manage workload and sprints, and drive backend solution architecture. Experience with C#, .NET, EF Core, AWS technologies (RDS, MSK, Redis), and RESTful APIs required.

Sales Development Representative will identify and qualify prospects in the UK market, conduct discovery meetings, and present Agicap's value proposition. The role requires prior sales experience, strong communication skills, and the ability to analyze financial issues.

Data Analyst to develop and implement a data governance framework, ensuring data accuracy and integrity. Responsibilities include establishing data quality monitoring processes, identifying data inconsistencies, and collaborating with cross-functional teams. Requires expertise in SQL and Python, data visualization, and statistical techniques.

Senior Frontend Engineer to design, develop, and maintain high-performance web applications for trading analytics and execution monitoring. Responsibilities include building scalable frontend architectures using React, Next.js, and related technologies, participating in the full software development lifecycle, and collaborating with stakeholders to translate requirements into technical solutions. Requires 5+ years of professional software development experience and expertise in TypeScript, HTML5, CSS3, and frontend tooling. Experience with testing frameworks (Jest, Playwright), data grid solutions (AG Grid, DevExtreme), and real-time applications is highly desirable.

This role supports the ENT International organization across RLM and OLM geographies, acting as a strategic business partner to the VP, Commercial, Marketing and Finance leadership teams. The Principal Business Analyst will enable data-driven decision making, improve business visibility, and support execution of key commercial and strategic initiatives.

Senior DevOps Engineer to develop generative AI solutions based on LLMs, AI agents, and automate software development processes. Requires experience with Python, JavaScript or TypeScript, cloud platforms (GCP preferred), and DevSecOps practices.

Account Manager will build and manage client relationships, oversee annotation teams, and ensure project success. Requires excellent Ukrainian and English communication skills, 2-3 years of tech service experience, and strong leadership and negotiation abilities.

Support testing, commissioning, and troubleshooting of railway systems and infrastructure. Assist with system integration, validation, and performance testing. Prepare technical documentation and reports. Collaborate with multidisciplinary teams on engineering projects.

Application Support Engineer to ensure operational stability, performance, and availability of mainframe environments. Responsibilities include providing Level 2 support for z/OS systems, batch applications, and job execution monitoring. Requires expertise in z/OS system monitoring, batch processing, JCL, ISPF, SDSF, TSO, Control-M, and TWS.

Manage CRM campaigns, execute omnichannel strategies, and analyze data to optimize performance. Coordinate campaign cycles, manage communication assets, and provide operational support to CRM users.

Lead the development and scaling of native advertising capabilities across Taboola, Microsoft Ads, LiveIntent, and Newsbreak. Build and develop a high-performing team of media buyers. Drive performance excellence and own testing strategy across targeting, bidding, placements, creatives, and campaign optimization.

Develop and maintain Java-based microservices for digital payment solutions. Design, implement, and consume REST and gRPC APIs. Build event-driven applications using Apache Kafka. Migrate applications to public cloud environments.

Senior Software Engineer to join engineering teams of up to five people. Develop, test, deploy, and maintain software platforms. Requires a Bachelor's degree in Computer Science, Mathematics, or Physics, 5+ years of software engineering experience, and proficiency in C/C++, Python, or Java.

Design and develop avionics hardware for TEKEVER's autopilot systems. Responsibilities include schematic capture, PCB layout, component selection, signal integrity analysis, and hardware validation.

Senior Android Software Developer designs and delivers high-quality features in an Agile team. Develops scalable mobile solutions using modern technologies and architectural best practices. Minimum 5 years of professional Android development experience required. Fluent English required.

Experienced Scrum Master / Delivery Manager to lead Agile delivery for data and integration teams. Drive end-to-end delivery planning, facilitate Scrum ceremonies, manage stakeholder communication, and ensure high-quality project delivery.

Performance Marketing Specialist to execute and scale global paid media programs across channels like LinkedIn, Google, and Meta. This hands-on role involves campaign building, optimization, and cross-functional collaboration to drive engagement and achieve ROI.