Backend Developer Jobs in Poland

O projekcie: Dołączysz do nowo powstającego zespołu odpowiedzialnego za platformę zarządzania cyklem życia rezerwacji. Platforma wspiera obsługę danych rezerwacyjnych oraz przepływ danych i procesów biznesowych z nimi związanych, takich jak rozliczenia, raportowanie, analityka, przygotowanie danych

Considering joining Espeo Software? We are a technology company that started its journey in 2008. Our main headquarters is located in the picturesque city of Poznań, nestled by the beautiful Malta lake. For more than 18 years, we have been assisting companies in developing and implementing innovativ

Sonalake is a software partnering company that helps our clients realise their product roadmaps. Product design and engineering are at the heart of our business. Our engineering teams work with clients right across the stack; UX, UI design, frontend, backend, analytics, infrastructure, operations -

About AlphaSense: The world’s most sophisticated companies rely on AlphaSense to remove uncertainty from decision-making. With market intelligence and search built on proven AI, AlphaSense delivers insights that matter from content you can trust. Our universe of public and private content includes e

Join beqom — where tech meets impact beqom is a high-growth B2B SaaS company that provides industry-leading tools for pay equity and transparency, compensation, and performance management. Trusted by some of the world’s most respected companies, beqom enables HR and business leaders to navigate glob

Upside is a software consultancy built by engineers, for engineers. We partner with global companies to solve real, complex technical challenges. We’re deep into Applied AI and R&D, building both production-grade platforms for clients and our own open-source tools like Enthusiast (Agentic AI framewo

About Anovium Anovium is a product-focused digital innovation agency and consultancy. We empower companies to innovate and harness technology. Anovium is a sister organization of a venture studio, which builds out ideas into high-growth companies. This provides unique exposure to the agency in emerg

SplitMetrics is a global software company offering an ecosystem of products and services that serve as a growth engine for top mobile-first businesses worldwide. Our ecosystem includes: SplitMetrics Acquire, a platform for automating and optimizing Apple Ads. SplitMetrics Agency, a full-service mobi

We are looking for a skillful Backend Developer to join one of our teams working with US clients - referrals from the high-end American IT market. Our tech stack is built around React, Node.js and TypeScript. We are working with well-established companies and sometimes startups in their early stages

About Shelf Shelf is the operating system for agentic AI: a platform that models your policies, workflows, and operational logic into an AI Data Model so AI agents don't just respond—they reason. The result is AI that understands how your business actually operates and delivers precise, compliant, a

About the company At Thrill Labs, we're not just building a gaming company; we're creating a global sensation. We are the innovative force behind Thrill.com, a groundbreaking crypto gaming venture set to launch soon! Our mission? To build the world’s most epic gaming brand and craft magical experien

SwingDev—a hippo company is the Polish branch of a fast-growing InsurTech product company – Hippo Insurance. We’re here to make home insurance smarter and more proactive, using tech to bring fresh solutions. We also create digital products that support our customers, always focusing on what really m

Are you passionate about building event-driven systems? Do you have a strong grasp of Kotlin or Go? Do you enjoy finding solutions for significantly impactful challenges? If the answers to the above questions are yes, then this role could be ideal for you! What you will do Build greenfield mission-c

About the role This role is going to be working on the open source Doppler SDK and Indexer. Responsibilities Implementing - new SDK and Indexer features Testing - automate backend testing alongside a release pipeline Support - helping applications and protocols integrate the SDK and Indexer Shipping

Parę słów o nas: Wyobraź sobie pracę w firmie, która realnie poprawia komfort życia milionów ludzi na całym świecie. Pracę w projektach, w którym masz wpływ na wszystko – od doboru narzędzi, po możliwość realizowania własnych pomysłów. Diagnostyka Digital Hub to centrum innowacji technologicznych gr

In short If you're a backend engineer who doesn't just build what's asked, but shapes how it's built, we want to talk. We're looking for someone who can own the technical direction of a project end to end: architecture, infrastructure, trade-offs, and the conversations that come with them. You'd joi

SwingDev—a hippo company is the Polish branch of a fast-growing InsurTech product company – Hippo Insurance. We’re here to make home insurance smarter and more proactive, using tech to bring fresh solutions. We also create digital products that support our customers, always focusing on what really m

About First Connect: First Connect Insurance Services is a digital marketplace providing independent insurance agents access to top US carriers and the optionality necessary to grow their businesses. Agents can work with 130+ carriers, selling various insurance policies, including home, auto, small

Whippy is leading the way in AI-powered business communication, transforming how companies engage with customers using intelligent AI Agents. From customer support to marketing to sales, businesses rely on Whippy’s Voice AI and Chat AI to eliminate manual workflows—responding to inquiries, nurturing

Flying Bisons is a leading Digital Consulting & Delivery company based in the heart of Europe, Warsaw. Our mission is to help our clients to Unleash Digital Potential™. We discover, define, design, and develop world-class digital products that drive business results for our clients, shaping digital