backend engineer nodejs

Cornerstone OnDemand is seeking a Software Engineer .NET to join our hybrid Kraków team. You will design, develop, and maintain backend services and APIs in C#/.NET Core, deployed on AWS, while also contributing to frontend work with React or Angular.You'll own features end-to-end, optimize SQL queries, and participate in CI/CD. The role emphasizes...

WP Engine is seeking a Backend Platform Engineer to architect and implement backend capabilities that power our global cloud infrastructure. This role sits at the intersection of software engineering, distributed systems, and production reliability, owning services from design to observability.You will work with Go/Python, cloud platforms like AWS and GCP,...

Intetics Inc. is seeking a Senior PHP Developer to join our global team on a full-time basis. You will develop and maintain a robust platform that unifies vulnerability, threat, and asset data to help clients remediate exposures.You will work with REST APIs, Linux-based cloud environments, and modern PHP frameworks, while collaborating across time zones....

hyperexponential is building an AI-powered underwriting platform for insurers, seeking a backend engineer to own and evolve the workflow systems. You will design and implement backend services in Kotlin/Java, drive architectural decisions, and collaborate across product and client teams.AI tools will be a core part of development, with accountability for...

WP Engine is seeking a backend-focused engineer to shape and scale our global cloud infrastructure. You will own services from design to observability, balancing reliability with performance in a fast-paced environment.Deep fundamentals in distributed systems and cloud-native tech are essential, with Go/Python experience and a willingness to learn new...

Alarm.com is building a new Krakow team and seeks a Senior Software Engineer for the HAX Automation Pod. You will lead backend development, partner with Product Management and QA, and mentor engineers while shaping architectural direction.Focus will be on backend data, APIs, and automation features with scalable, reliable designs. You will work in a...

Grupa Wirtualna Polska poszukuje Backend Developera. Praca obejmuje rozwój i utrzymanie serwisów przetwarzających duże wolumeny eventów, implementację logiki przetwarzania danych oraz projektowanie modeli danych.Wymagana praktyczna znajomość Go i podstawy Javy/Pythona, doświadczenie z systemami strumieniowymi i narzędziami Docker, Git, GitLab i CI....

A leading technology firm in Poland seeks a skilled Backend/Big Data Engineer to design and implement scalable solutions utilizing their Cloud Platform. The ideal candidate should have extensive experience in backend positions and be proficient in programming languages such as Java, Scala, and Python. Responsibilities include maintaining data pipelines,...

A technology solutions company is seeking a Senior Software Engineer to design and implement systems for smarter expense management. This role requires backend development skills, particularly in .NET and C#, along with experience in cloud technologies. The suitable candidate will work collaboratively in a cross-functional team, enhance product features, and...

A financial technology company is looking for a Staff Software Engineer to join their Deal Reporting team in Poland. You will be responsible for setting technical strategy and collaborating across teams to develop integrations and services. The role requires 7+ years of backend development experience, especially with Python and AWS, and offers flexibility...

Piano is looking for a senior developer to join the Customer Data Platform team in Warsaw. You will advance AI-first workflows using Claude Code and own high-throughput event pipelines, Elasticsearch queries, and sandboxed execution of customer logic.You will collaborate across teams, drive production deployments with Helm and FluxCD, and take on on-call...

beqom in Kraków is seeking a Senior Agentic Backend Engineer to join the Data Platform Core team, owning specifications for AI-driven services including multi-tenant data ingestion, schema management, snapshots, and data contracts powering analytics. You will not write code; AI agents will.You will guide the agentic pipeline, ensure governance, and...

Senior / Staff Backend Engineer (Java, Kafka Streams, AWS) Location: Kraków, hybrid Contract: B2B or UoP B2B budget: up to 210 PLN/h VAT Work model: around 3 days per week from the office We are looking for a Senior or Staff Backend Engineer to join a small, high-impact engineering team building a large-scale, event-driven platform. This is a hands-on role...

ARQ is seeking a Backend Engineer to design, develop, and maintain scalable, secure backend systems powering our fintech products in Kraków. You will build REST APIs and microservices using Java 25 and PostgreSQL, with Spring Boot driving fast, quality delivery.Join a team that values maintainable code, TDD, and a pragmatic approach to business logic. This...

Nango is seeking a Staff Backend Engineer (Remote) to help scale our AI infrastructure and connect agents to 900+ APIs. You will design, build, and optimize backend services that power platform integrations and developer workflows.This fully remote role offers a fast-growing environment with a seasoned team; Nango emphasizes scalable architecture,...

DCG in Warszawa is seeking a senior Java developer to upgrade and maintain complex banking applications. You will design, develop and optimize Java applications supporting savings and investments products, with a focus on Java 21 and Spring Boot 3.3.x.You will collaborate with financial analysts, ensure tax compliance across countries, and participate in...

Magentateam is seeking a Senior Fullstack Developer with a backend-first focus to own the core CMP Integration Layer, building MNO translation adapters and maintaining API contracts. You will also contribute to a React management dashboard as a secondary focus within a greenfield environment.You will design scalable backend services, manage CI/CD pipelines,...

Neuroscale AI is seeking a Founding Staff Software Engineer in Poland to develop and scale their core backend platforms. You will lead the design and maintenance of robust backend systems, focusing on modern Python/FastAPI stacks. Ideal candidates will have strong backend engineering experience, especially with AWS services, and the ability to mentor others....

Synerise SA in Warsaw is seeking a talented Backend Software Engineer to join their innovative team. In this role, you will develop architecture and design patterns for processing high volume data sets with a core focus on optimization and performance.Ideal candidates should be proficient in Scala, have a solid understanding of Apache Kafka and Kubernetes,...

Talanto is seeking a talented Java developer for a long-term, regular-level professional position in Poland. The role emphasizes strong Java/Spring expertise, Kubernetes, and SQL, with an opportunity to grow and advance within a dynamic team.Applicants should be self-motivated, able to work independently or in a team, and comfortable in English...