backend developer English-speaking jobs in Włocławek

Tax Manager will oversee all tax matters for the group, ensuring compliance with Polish regulations and timely filings. Provides strategic tax advice, monitors legislative changes, and collaborates with accounting and external advisors. Requires 5-7 years of senior-level tax experience, strong knowledge of Polish tax law, and proficiency in accounting software.

Provides operational support to the CEO and CCO, managing communication, schedules, and projects. Tracks, organizes, and updates key processes and anticipates needs to ensure smooth operations. Coordinates calendars, meetings, and communication, handles sensitive information, and supports company-wide projects.

Network Operations Center (NOC) team seeks an intern to monitor network devices, troubleshoot issues, and provide Level 1 network support. The intern will monitor network tools, create tickets for events and incidents, and perform network service fulfillment.

Experienced Talent Engagement Specialist needed to identify, attract, and build relationships with potential candidates for specialized roles. Responsibilities include strategic sourcing, networking, relationship management, full-cycle recruitment support, and process optimization. Fluency in Polish and English required.

Designs and implements core backend services for high performance, complex distributed systems. Collaborates across teams in a product-driven environment. Experience coding Python in modern, complex technical environments is required.

Junior Salesforce Marketing Automation Consultant will develop marketing automation strategies, analyze marketing processes, and utilize Salesforce Marketing Cloud tools to improve client marketing efforts.

Software Engineer to build and launch new products from prototype to production. Collaborate with founders and product builders on multiple startup ideas. Experience with Node.js, Python, and AI tools is required. Focus on clean code, architecture, and reliability.

Manages day-to-day purchasing activities in indirect procurement. Collaborates with clients and suppliers to ensure smooth ordering processes. Responds to inquiries, processes orders and requests, and performs vendor gatekeeping.

Finance Associate will contribute to month-end close, balance sheet integrity, and support international financial workflows. Tasks include general ledger postings, balance sheet reconciliations, accounts payable support, audit readiness, and process optimization. Requires a Bachelor's degree in Finance or Accounting, 2+ years of experience, and proficiency in Excel and mid-tier ERP systems.

Software Engineer (Python) to develop avionics systems using Agile methodologies. Minimum 2 years experience, proficiency in Python, and a B2 level of English required.

Senior Java & React Fullstack Engineer will design, build, and maintain robust applications. Responsibilities include software architecture, UI improvements, code development, documentation, and customer support. Requires 8+ years of Java development experience, including front-end (React), strong SQL skills, and DevOps knowledge.

Backend Engineer needed to design, develop, and maintain scalable backend systems using Java, Spring Boot, and Postgres. Experience with REST APIs, microservices, and TDD/DDD is required.

Senior Node.JS Developer to shape the technological direction of a new engineering hub. Build a high-performance payments platform, focusing on scalability, reliability, and security. 5+ years of Node.js experience and mastery of TypeScript required.

Senior Quality Engineer will design, implement, and maintain end-to-end test automation frameworks using Playwright and TypeScript. Responsibilities include leading the migration from TestRail to a new Test Case Management System, standardizing test case structure, and setting up an agentic test case development process leveraging AI tools. The role requires 5+ years of professional QA engineering experience with a strong focus on test automation and extensive hands-on experience with Playwright.

DevOps Engineer needed for a cutting-edge AI project focused on building an AutoML pipeline. Responsibilities include designing cloud infrastructure, transitioning scripts to a production-ready environment, and building CI/CD pipelines. Requires 5+ years of experience in DevOps/Cloud Engineering with Docker, Kubernetes, Terraform, and a cloud platform (AWS, Azure, or GCP).

Software Test Engineer will design, develop, and implement automated testing solutions for a new software ecosystem. Responsibilities include defining testing strategies, executing test cases, and mentoring team members. Requires 3-5 years of experience in test automation and infrastructure design. Familiarity with test management tools and CI/CD pipelines is desired.

Job Description Summary Avio Aero as a part of a GE Aviation Business is the leading company in the aeronautic business sector for the design, manufacturing and maintenance of components and systems for civil and military aero engines. We offer an opportunity of development in our Design Engineering Center team located in Bielsko-Biała plant!

Senior Institutional Sales Manager will accelerate institutional adoption by identifying, engaging, and onboarding clients including hedge funds, family offices, and asset managers. This role requires a strong network across traditional finance and crypto-native institutions and a proven track record in meeting sales targets.

QA Automation Engineer will design, implement, and execute manual and automated test cases for web and backend services. Develop and maintain automated test scripts using Playwright or Cypress, perform cross-browser and cross-device testing, and collaborate with developers, product managers, and designers.

Fullstack Engineer focused on backend development using Java (versions 11+, 17+ preferred), ReactJS, and Kubernetes. Will build and support services, microservices, and applications while migrating from legacy systems.