frontend developer English-speaking jobs in Leszno

Leads funnel performance, CRO, and commercial alignment between paid acquisition and on-site experience. Builds, tests, and optimizes funnels and landing pages to convert paid traffic into customers. Owns the full lifecycle of funnels, landing pages, and commercial flows. Directs the commercial execution of new product launches and campaigns.

Junior Software Engineer focused on problem solving and coding. Builds systems with a focus on clarity, speed, and maintainability. Works in small, autonomous teams with high ownership and impact. Strong understanding of data structures, algorithms, and software engineering principles required. Experience with Node.js, TypeScript, React, React Native, AWS, Kubernetes, and Terraform preferred.

Business Development Specialist to support international expansion activities. Conduct market research, analyze trends, and assist in identifying potential partners. Requires 1-5 years of experience in business development, sales support, or related fields. Strong English and Polish language skills are essential.

Senior Business Analyst with 5+ years of experience in IT, skilled in Agile and Kanban methodologies, business development, and project management. Experienced in business analysis tasks, requirements elicitation, and stakeholder management.

AP Problem Resolution Senior Specialist ensures high-quality, timely, and cost-effective service delivery. Responsibilities include investigating and resolving invoice and purchase order processing issues, handling inquiries, and providing customer support. Requires at least 2 years of experience in AP/P2P or related finance processes and strong analytical skills.

System Test Engineer will conduct thorough reviews of system requirements and designs, develop test cases, and execute manual and automated tests on PowerDrive HIL benches.

Experienced Java SRE Engineer needed for a 6-month project (extendable) supporting a large-scale, globally distributed payments platform. Focus on performance, security, and scalability.

Lead the Procure to Pay architecture for a global SAP S4HANA transformation. Design a harmonized global template for procurement, inbound logistics, supplier collaboration, and accounts payable. Partner with business process owners, SMEs, and technology teams to translate requirements into a compliant and scalable design.

Lead Quest Designer to manage and guide a team, ensuring the successful delivery of fun and memorable quest experiences for a new IP. Collaborate with cross-functional teams to craft a cohesive game experience.

Engineering Data Scientist will support data analysis, reporting, and dashboard development for Supplier Engineering initiatives. This role involves working with supplier data, building Tableau dashboards, and supporting data pipelines and reporting processes.

Senior Ruby on Rails and React Developer with 8+ years of experience sought. Expertise in designing, building, and maintaining robust systems, including admin panels and internal tooling. Proven ability to identify gaps, propose solutions, and drive projects to completion independently. Strong focus on quality, with extensive experience in designing and maintaining test suites.

Business Architect to design scalable contact center solutions. Translate business needs into actionable architectures. Experience with contact center solutions (Amazon Connect or similar), process design, and Agile methodologies required. Fluent English essential.

Supervises cash, position, and market value reconciliations, reviews fund pricing, corporate actions, and profit & loss reports. Ensures timely and accurate NAV calculations and assists in the development of the NAV team. Requires 3+ years of experience in hedge fund administration, strong communication and analytical skills, and the ability to work independently and as part of a team.

Enterprise Architect for Data Analytics will lead complex projects, provide architectural designs, and act as a trusted advisor to Product Line leadership. This role requires deep expertise in Data Analytics architecture domains and a proven ability to define and communicate a technology vision that delivers business value.

Lead and manage a global sales team, overseeing both inbound and outbound operations. Ensure lead pursuit, process adherence, and peak performance from all representatives. Report directly to the Head of Sales, focusing on execution and achieving sales goals.

Translate content from English to Polish, preserving Westwing's tone of voice and adapting it to the Polish market.

Lead integration workstream in S/4HANA implementation projects. Design and implement integrations using SAP BTP Integration Suite (CPI). Build API-first and event-driven integration architectures.

Develop and maintain Python-based applications and tools supporting AML solutions. Implement, optimize, and deploy machine learning models to enhance product capabilities. Collaborate with data scientists and teams to integrate models into production systems.

Lead Engineer responsible for specifying, designing, and optimizing oil supply systems for large gear systems. Develops new systems, performs risk assessments, and adapts existing systems to customer needs. Collaborates with internal and external teams, generates technical documentation, and provides technical support. Requires a mechanical engineering background with expertise in lubrication, hydraulics, and instrumentation.

The Junior AR Accountant (French) will support AR operations globally, handling cash allocation, collection management, customer management, reconciliation, and month-end tasks.