backend developer English-speaking jobs in Świdnica

The Product & Solution Security Expert (PSSE) will own the end-to-end security strategy for Industrial Cabinet Solutions (ICS) software and firmware development. Responsibilities include driving secure-by-design principles, reviewing security test plans, governing threat modeling and risk assessments, and overseeing secure software development lifecycle (SSDLC) integration.

The Project Engineering Manager will support the AP1000 new build at the Lubiatowo-Kopalino site. Responsibilities include coordinating engineering processes, providing direction to project teams, developing budgets and schedules, and managing direct reports.

As a Solutions Architect, you will build trusted relationships with c-level executives and technical decision makers to provide business and technical thought leadership. You will architect business models, drive thought leadership, and design end-to-end customer transformation journeys. You will also lead strategy engagements, expand Stripe's footprint within accounts, and act as the "Voice of the Customer" to bring insights to leadership, product, and engineering teams.

Manage and scale paid social media campaigns for eCommerce brands across Meta and TikTok. Develop testing frameworks, optimize campaign structures, and analyze performance data. Maintain client communication and ensure account performance meets churn targets.

Claims Handler for commercial insurance (Property, Liability, related lines) in Poland. Handles, analyzes, and resolves claims independently, ensuring accurate and timely handling while balancing customer focus with legal and regulatory requirements. Collaborates with various teams to resolve complex cases and identify process improvements. Requires 5+ years (mid-level) or 8+ years (expert level) experience in commercial insurance, strong analytical and communication skills, and fluency in Polish and English.

Accountant will handle intercompany accounting, including posting invoices, reconciling accounts, and building relationships with suppliers. Requires a Master's or Bachelor's degree in economics or equivalent, 1+ year of accounting experience, and proficiency in English. German language skills are a plus.

Lead the technical delivery of customer-facing software solutions across industries such as Automotive, Transport, and Logistics. Responsible for the full lifecycle of solution development, from planning and design to implementation and testing. Collaborate with internal and external stakeholders, serving as the technical authority within the assigned project scope.

Lead a research team developing reasoning-capable multimodal LLMs (text, vision, speech) for real-world applications. Manage researchers, oversee model development, and collaborate with international teams.

Lead independent proof-of-value (POV) engagements with enterprise prospects, designing custom ontologies and configuring solutions within 3-5 day cycles. Conduct technical discovery and present solutions to Data Engineers, Enterprise Architects, and AI/ML Engineers. Support Account Executives throughout sales cycles with primary ownership during technical evaluation and POV phases.

Junior Backend Java Developer will design, develop, and maintain backend systems using Java 17+, Spring Boot, and PostgreSQL. Responsibilities include system-level scripting, DevOps infrastructure contributions, and collaboration within distributed teams.

Design and maintain graph data models using Neo4j. Develop and optimize Cypher queries and Java integrations. Improve database performance, indexing, and scalability. Collaborate with data scientists and backend teams on analytics features.

CAD Project Engineer will support Process and Design Engineers by transforming technical markups and instructions into P&IDs. Prior experience with ACC is an advantage.

Producer to oversee concept art production for a new IP. Collaborate with Art Directors, Creative Directors, and Production leadership to define, plan, and manage the concept art production roadmap. Coordinate with cross-disciplinary leads to ensure alignment and timely asset delivery. Manage workload distribution, track progress, and ensure high-quality standards are met.

Full stack developer to build and maintain a high-volume booking engine using Ruby on Rails. Experience with relational databases and APIs required. Front-end experience, Elasticsearch, or Redis is a plus.

Intern to support process maturity assessments, data analysis, and audit management using Power BI and Excel. Must have strong analytical and communication skills.

Credit Analyst will manually review and assess creditworthiness for unsecured retail products in the Portuguese market. Decision making based on risk appetite with clear documentation. Requires a degree in Finance, Economics, Statistics, or a related quantitative field. Portuguese language skills are advantageous.

Tax Analyst prepares VAT/Intrastat returns, coordinates data for audits, and reconciles VAT reports. Requires a finance/accounting/tax degree, 2+ years experience, Polish tax knowledge, and fluency in English.

Senior Java Developer sought for a project with a banking client. Responsibilities include designing, developing, and maintaining Java applications, implementing REST APIs, and collaborating with international teams. Requires 8+ years of Java development experience, including Quarkus, REST APIs, Lombok, and JUnit. Must be proficient in Git, SonarQube, Jira, and Confluence. Fluency in English and Polish is required.

Polish speakers needed for a remote freelance role as an E-Commerce Search Analyst. Analyze product data, evaluate filters and search results, and ensure data accuracy for AI training. Must have native Polish and advanced English skills.

The Account Receivable Specialist will be responsible for the monthly settlement process, including calculating revenue accruals, ensuring accurate invoices, and managing customer payments. They will also review sales agreements, update customer accounts, and prepare reports.