Api developer jobs in Poland

 ...With 14:00 UTC to 17:00 UTC being the team’s overlapping hours. What You’ll Do Design, build, and maintain backend systems and APIs that power Wikidata’s query infrastructure Improve reliability, observability, and automation of the Wikidata Query Service and... 

 ...method, or geographical market—directing routing decisions, tokenization rules, API authentication, and automated fallback logic. This role demands a seasoned distributed systems developer who can deal thoughtfully with inheritance code complexity, defend error paths aggressively... 

 ...development and data-driven solutions. Softeta is looking for a Java Developer to become a part of our vibrant team and will be work for our...  ..., generation, archiving and signing solutions Work on API-driven architectures, microservices, and cloud-native applications... 

 ...We are seeking a highly analytical, systems-minded Middle Java Developer to join our expanding back-end engineering division in a remote-...  ...caching mechanisms natively using Hibernate and Java Persistence API (JPA) configurations. Automated Compilation & Build... 

 ...Identify and flag breaking changes that may impact integration with Django Assess the impact of each release on the existing API contract Perform reactive compatibility patching on the Unity client side when: SDK updates introduce incompatibilities Integration... 

 ...run an active high-throughput microservices backend, third-party API webhooks, and relational data pipeline laboratory. Partnering...  ...professional software engineering history operating as a Backend Developer, Systems Engineer, Node.js/Python Specialist, API Integration Architect... 

 ...Identify manual workflows and automate them using Python scripts, API integrations (Looker API) or Agentic AI. Operational...  ...welcoming team which is always ready to help. Opportunity to develop in an international environment - we have teams in 6 countries.... 

 ...Ideal Experiences Strong experience in full stack engineering (frontend + backend) Solid understanding of system design and API architecture Experience working with LLMs , RAG systems , or AI-powered applications Ability to handle ambiguity and make pragmatic... 

 ...world deployments. This is a backend role for someone who wants to work on machine data, events, fleet infrastructure, dashboards, APIs, and operational systems. Responsibilities: Build backend services for telemetry, device state, events, dashboards, and partner... 

 ...focuses on full‑stack software architecture, infrastructure, and developer productivity across on‑prem and cloud environments. You...  ...problem‑solving principles Experience designing and operating APIs, with familiarity with Kubernetes and identity technologies... 

 ...video segments like Honest Trailers. Fandom equips high-agency developers with an uncompromised software canvas to engineer highly interactive...  ...), user segmentation engines, and external monetization APIs cleanly. Video Player Optimization: Develop and implement full... 

 ...work for our client from banking sector. Responsibilities: Develop and maintain scalable frontend applications using React 19 and...  ...Design System, and Storybook . Design and maintain type-safe APIs and data contracts with Zod . Ensure software quality through... 

 ...Scripting , and coordinates multi-platform global distribution system (GDS) API contracts confidently. Key Responsibilities Production-Grade AI Systems Architecture: Design, develop, and scale advanced AI-driven backend services that power virtual agent workflows... 

 ...The exchange team develops and maintain a cutting-edge trading platform. With a global presence across APAC, EMEA and North America, the team has since grown with the goal to provide a seamless and secure trading experience for our clients. As a Senior Devops Engineer... 

 ...foundational pillars. The platform provides high-agency backend developers with an uncompromised remote canvas to leverage modern...  ...backend software engineering, distributed systems development, core API architecture design, database optimization, or technology product... 

 ...development, driving a native-first testing strategy and a culture where developers own quality rather than hand it off. Your scope of work will...  ...on BrowserStack with GitLab CI . Keep the backend/API/contract layer strong and connect it to the mobile client layer... 

 ...critical. Focus Build and maintain iOS applications using Swift and SwiftUI. Integrate AI-powered features through backend APIs. Design UX patterns for AI interactions, including loading states, streaming responses, retries, and fallbacks. Optimize... 

 ...internationally recognized AI product incubator, growth marketing tech developer, and elite automated systems provider operating on a relentless...  ...-end structural ownership over internal data models, background API integrations, webhooks, tracking configurations, and multi-... 

About Nethermind Nethermind is a blockchain research and software engineering company building high-performance infrastructure, security tooling, and cryptographic systems across the Ethereum ecosystem and beyond. We work closely with protocol teams, L2s, and ZK projects...

 ...organizational knowledge, agentic infrastructure, the platform API surface, and the cost-governance model that keeps running within...  ...platform API surface, translating infrastructure primitives into developer-ready abstractions. Building reference agent implementations... 

 ...primarily in Western Europe and North America. We're seeking a Python Developer to join our innovative AI team. This role is focused on building...  ...65 stack ~ Strong understanding of web development and modern API design (e.g., FastAPI , Flask ), async API design ~ Good... 

 ...conversational, recommendation, or automation systems. Strong programming ability in Python, TypeScript, or similar. Experience with LLM APIs, tool calling, retrieval, structured outputs, evaluations, and production AI workflows. Understanding of prompt engineering, RAG,... 

 ...Join Checkly as a Senior Customer Solutions Engineer and empower developers and agents to own and ensure application performance and reliability - from pull request to post-mortem! Checkly is the active reliability layer for developers and agents. We unify testing,... 

Facets Developer – C# and SQL for agile development for a Facets implementation role. This Developer position will participate in a team environment for the delivery and code for a Facets testing and implementation. Responsible for programming, debugging and testing of... 

 ...customers onto our AI platform, we’re facing challenges that sit at the intersection of infrastructure, application architecture, developer experience, and enterprise clients’ requirements. These problems are rarely well-defined upfront, there’s never a single way to solve... 

 ...infrastructure veteran with 6+ years of craft depth who maps out automated server provisioning fluidly natively using DevOps pipelines, develops low-overhead operational tooling smoothly natively using Python or Go runtime automations, and commands rigid system-hardening... 

About WearLinq: WearLinq is a groundbreaking healthcare startup emerging from Stanford University on a mission to democratize healthcare. We built an FDA-cleared 6-channel EKG wearable device and mobile app that bridges the gap between patients and providers to diagnose...

 ...and design standards for your team, and advocating for them beyond your team through your writing and tech talks. You will help develop talent on your team by providing feedback and guidance, and leading by example. What We Look For You have 4+ years of experience... 

 ...Platform teams, and use experimentation, observability, and user behaviour to guide what we build next. The opportunity Design, develop, and maintain high-quality consumer-facing features across web (React) and mobile (React Native), owning the full experience from... 

 ...are responsible for ensuring that our platform is stable and healthy. We break down barriers to running our products by fostering developer run ownership and empowering developers to build resilient products. We support our developers during the application build phase...