Backend Engineer Web3 Jobs in Poland

This is a remote position. We are recruiting on behalf of a fast-growing European SaaS company that builds a cloud-based Quality Management System for the Life Sciences industry. Its customers make medical devices pharmaceuticals and biotech products and they use the platform to stay compliant with...

Take end-to-end ownership of the Vast Gateway serviceMaintain develop and extend platform functionalityDesign and implement scalable Back-end solutions for high-load environmentsSupport onboarding of new clients including integrations monitoring setup troubleshooting and optimizationBuild custom fea...

Backend EngineerWere looking for a Backend Engineer with 5 years of experience to build and maintain high-volume data collection systems and reliable experimentation infrastructure for a digital product.ResponsibilitiesBuild and maintain streaming pipelines for app web and business data.Develop and...

About the RoleWe are looking for an experienced Senior Backend Engineer specialising in Ruby on Rails to join the R&D and Engineering team of a fast-growing AI technology company serving millions of users this hands-on individual contributor role you will be responsible for designing developing and...

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco our investors include Benchmark General Catalyst Peter Thiel Adam DAngelo Larry Summers and Jack Dorsey. Position: Senior Software Engineer Backend ( TypeScript Rust) Type:...

About the companyInsurance is a $7T global industry built on professional labor: underwriting claims pricing operations and distribution. Were building AI that can perform that work - professional-grade systems for insurers that read reason decide and act inside real workflows over long time horizon...

About 0TO90TO9 is a bank for entrepreneurship built by and for financial innovators. We provide infrastructure for entrepreneurs ready to start and scale the next generation of financial products and platforms. Founded in Stockholm in 2025 were already 200 co-workers across Europe with offices in St...

Long-term B2B Contract Remote within EURole OverviewWe are looking for an experienced Java Tech Lead / Lead Backend Engineer who combines strong hands-on backend engineering with technical leadership and architectural ownership.You will work on cloud-native distributed systems taking ownership of co...

Type of contract: EmploymentcontractSalary range: PLN grossWhat will you doYou will design and develop production-grade AI and GenAI solutions built primarily in Python contributing to a large-scale enterprise technology transformation. You will work on LLM-based capabilities RAG solutions and agent...

Type of contract: Employment contractSalary range: PLN grossWhat will you doYou will build production-grade AI and GenAI solutions using Python contributing to a large-scale enterprise technology transformation. You will work on LLM-based capabilities RAG solutions agentic workflows and integrations...

Wipro Limited (NYSE: WIT BSE: 507685 NSE: WIPRO) is a leading technology services and consulting company focused on building innovative solutions that address clients most complex digital transformation needs. Leveraging our holistic portfolio of capabilities in consulting design engineering and ope...

SmartBear delivers application integrity for modern tech stacks ensuring continuous measurable assurance that software just works as intended with governance to operate at AI speed and scale. SmartBear offers deep test automation API lifecycle management and observability capabilities. With integrat...

SmartBear delivers application integrity for modern tech stacks ensuring continuous measurable assurance that software just works as intended with governance to operate at AI speed and scale. SmartBear offers deep test automation API lifecycle management and observability capabilities. With integrat...

Why voize Because were more than just a job!At voize we believe the greatest gift to frontline workers is time - time to care connect and be present. Today that time is lost to admin work that pulls nurses away from what matters most: people.Were changing that by building the AI companion that frees...

KrakówHybridJob DescriptionWant to grow as a backend engineer while working on products that make login identity and privacy simpler for usersWere looking for two JVM Backend Engineers to join our User Identity team. Youll work on Schibsted Account and privacy solutions used across Schibsted develop...