backend engineer nodejs

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 business, and more. We’re on a mission to overhaul...

About GRAI GRAI is reimagining how music is discovered and shared, created around the social layer of it. We're pre-launch, moving fast, and building the infrastructure for how the next generation of artists connects with their audience. The role You’ll build the systems that make GRAI’s AI music products work. From backend services and media pipelines...

**Project description** **About the Project:** Over 5 billion people use traditional, non-AI-native apps daily for email, notes, tasks, and calendars. Our client's mission is to build proactive applications for everyday users who aren't accustomed to complex prompting. Their platform aims to bring intelligence to conversations, errands, organization, and...

## **About GRAI** GRAI is reimagining how music is discovered and shared, created around the social layer of it. We're pre-launch, moving fast, and building the infrastructure for how the next generation of artists connects with their audience. ## **The role** You’ll build the systems that make GRAI’s AI music products work. From backend services and...

**About GRAI** GRAI is reimagining how music is discovered and shared, created around the social layer of it. We're pre-launch, moving fast, and building the infrastructure for how the next generation of artists connects with their audience. ****The role**** You’ll build the systems that make GRAI’s AI music products work. From backend services and...

The RoleThe platform processes massive streams of live sports data and video signals in real time-and the backend services driving this pipeline are yours to own. The challenge isn't just writing code; it's architecting for extreme scale and sub-second reliability where every millisecond counts toward a broadcast deadline. You will own features from initial...

Location: Preferably in Vienna but open to have someone remote in Austria or in PolandExperience: Over 5 years of experience in backend development using Golang and other OOP languages, you will contribute to our SaaS platform, managing the full software lifecycleContract: No freelancing, full timeWho We AreMillions of people interact with fiskaly every day,...

About CoW DAO CoW DAO is on a mission to protect Ethereum users from MEV and optimize trade execution across DeFi. We achieve this through the CoW Protocol, CoW Swap (a leading intent-based DEX aggregator), and the innovative MEV Blocker, which together help secure, aggregate, and route trades for optimal outcomes. We also fund values-aligned projects via...

Attio is the CRM built for the AI era. Designed for the most ambitious go-to-market teams, it gives companies the power to understand every customer, automate at scale, and build their go-to-market motion exactly as they need. We've raised $116M from some of the world's best investors: GV (Google Ventures), Redpoint, Balderton, Point Nine, and 01A. We hire...

Tatari is on a mission to revolutionize TV advertising. We work with some of your favorite disruptor brands—like Calm, Fiverr, and Rocket Money—to grow their business through linear and streaming TV. We combine a sophisticated media buying platform with proprietary analytics to turn TV advertising into an automated, digital-like experience.Named one of...

We know experience is built in a number of ways. Even if your background doesn’t match the exact requirements, we encourage you to apply and share any relevant skills in a cover letter. Sprout welcomes all candidates to apply, including those who identify as BIPOC, women and underrepresented genders in tech, LGBTQIA+, parents, veterans, persons with...

NDA, FinTech in Warsaw is seeking a talented Backend Engineer to design, develop, and maintain robust server-side systems powering our financial technology products. You will build scalable, secure, and high-performance backend services, handling data processing, API development, and integration with diverse systems in a fast-paced fintech...

Alignerr is seeking a Back End Developer to design, build, and optimize server-side systems and APIs that power AI products. This is a fully remote, hourly contract role with flexible hours and project-based work.You will implement robust data pipelines, microservices, and scalable infrastructure, write clean, documented code, and collaborate asynchronously...

SOFTSWISS is expanding and seeking a Senior Go Developer in Warsaw, Poland. The role involves designing and building scalable backend systems in Go, focusing on architecture and code quality. The ideal candidate will have over 7 years of software development experience, with a solid understanding of Go internals and experience in betting-related...

Sii Poland is hiring for a backend-focused role on a modern fintech platform in Kraków. You will design, build, and maintain microservices in Kotlin and collaborate with cross-functional teams across Platform, Services, SMB, and other domains.You'll work on performance monitoring, reliability, and scalability enhancements, participate in code reviews, and...

LeoVegas Group in Warsaw is seeking a Backend Engineer to strengthen our Sportsbook backend. You will design and implement from idea to production, ensuring scalability, availability, and security while collaborating with product managers, architects, and QA.The role focuses on building highly scalable RESTful microservices, integrating new products, and...

Cisco Systems Poland sp. z o.o. Kraków is seeking a backend engineer to build and evolve License Manager capabilities using Go and C++. You will write scalable, secure code and deliver features with strong test coverage to ensure reliability and performance.You will collaborate with product management, support, and engineering partners to improve system...

Affirm is a remote-first company hiring in Poland to strengthen the Recoveries team within Repayments. You will lead engineers to achieve quarterly goals, collaborate with product, design and analytics, and drive scalable backend systems using Python, AWS, MySQL, Kubernetes, and React.You will design robust batch processing, define technical plans for major...

Link Group is seeking a Senior Back-end Developer with strong Docker and Kubernetes experience to own security-focused backend lifecycle management. You will work with development, DevOps and security teams to ensure secure, reliable services are built, tested and deployed to standards.You will contribute to architecture discussions, manage dependencies with...

LeoVegas Group is seeking a senior Java engineer to join the Payments Team, building platform architecture and tooling to enable fast, secure payments integrations. You will own features from design to implementation, collaborating with architects and developers to deliver robust solutions in a fast-paced environment.Join us in a hybrid role with three days...