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TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok's global headquarters are in Los Angeles and Singapore, and we also have offices…
About TikTok TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok's global headquarters are in Los Angeles and Singapore, and we also…
Mid-level backend developer building and evolving microservices with Node.js, NestJS and TypeScript for a B2C digital ecosystem spanning web and mobile platforms. Day-to-day involves REST API design, SQL/NoSQL data modeling, testing, security, and features like payments, users and loyalty. Full remote from Spain.
Backend developer at BBVA's technology division designing and building integrations between complex systems, with a focus on REST APIs, microservices, and Murex integrations, plus modernization initiatives involving generative AI (Copilot, Gemini, Claude, OpenAI, agents, MCP). Core stack: Java and/or Python.
Senior Python backend engineer on a client data-platform project: designs and maintains Apache Airflow DAGs and Google Cloud Composer environments, builds Python REST APIs with Pydantic validation, and works with BigQuery, GCS, Pub/Sub, IAM and Cloud Functions, including OAuth2/JWT authentication.
Senior Java backend engineers join the core team building a major North American bank's low-latency, high-throughput capital markets trading systems (prime brokerage and platform teams). The work centers on core Java (8/17/21), distributed message-queue services, and microsecond-level performance tuning, fully remote from Poland with US Eastern-hours overlap during onboarding.
Backend developer at ista Technologies Poland (hybrid office in Gliwice) building and maintaining internal group software — roughly 75% new functionality, 25% maintenance — programming to specification, automating processes, and fixing incidents. Core stack: PL/SQL, SQL, Java, Spring Boot, REST APIs, microservices, Apache Kafka, MongoDB.
Tech Lead for a Java backend team building and maintaining systems that support sales and servicing of insurance products for a financial-sector client. Day to day: shaping architecture, leading code reviews and refactoring, and mentoring developers using Java 17, Spring Boot, and Scrum — 100% remote.
Backend Java developer (Java 21+, Spring Boot 3.x) building event-driven services and integrations for a telecom client, keeping the production environment stable while helping migrate toward Node.js/TypeScript. Project-based B2B role in Warsaw for mid/senior engineers (4+ years).
Senior Java developer on a Messaging Delivery Platform team, designing and building scalable distributed microservices for enterprise customer communications. Day-to-day work centers on Java/Spring Boot, Kubernetes, AWS, and CI/CD pipelines (Jenkins, Maven, Groovy) in an Agile setup, hybrid from Kraków (2 office days/week).
Backend developer on Société Générale's Origination program, building and supporting a web platform used by the structured finance department for deal structuring, pricing, and regulatory reporting. Day-to-day is mostly Java/Kotlin with Spring Boot and PostgreSQL, a small share of Angular/TypeScript, working in Scrum feature teams with TDD and clean-code practices.
Backend developer joining a newly formed Platform Squad to build a greenfield securities investment data platform and API layer — data pipelines, a strategy engine, and external REST APIs — using Go and TypeScript, with heavy use of AI coding tools like Cursor and Claude Code. B2B, 100% remote in Poland.
A .NET backend developer who guides AI coding agents (Claude Code, Codex, Copilot, Cursor) to build C#/.NET 8 backend solutions from user stories, then reviews, corrects, and improves the AI-generated code. Works with Entity Framework, SQL Server, APIs, and legacy system integrations in Lublin, Poland.
Senior backend engineer at OBI Smart Technologies (a JV of OBI and Reply Group) who owns backend architecture for product and assortment management in a large retail ecosystem. Day to day: building scalable Kotlin/Spring Boot services, Kafka-driven event-driven pipelines, and PostgreSQL data models on AWS/Kubernetes (EKS).
A backend security engineer designs and builds secure, scalable Java 21 / Spring Boot services on Google Cloud (GKE, Cloud Spanner, Cloud SQL) with Kafka/Pub/Sub event-driven architecture, contributing to a Zero Trust platform for a leading financial institution. The role also involves mentoring engineers and shaping technical direction.
Builds and maintains the backend for web and mobile applications in C#/.NET, working with MS SQL databases, web services and APIs, and prepares project documentation. Hybrid on-site/remote work with flexible start times at Poland's statistical office IT center.
Senior Java backend developer in Gdańsk who designs, builds, and maintains Java applications handling taxation, account management, and investment processing for pension and savings products. Core stack: Java 21, Spring Boot, Hibernate, PostgreSQL, and messaging (JMS/MQ), with CI/CD and OpenAPI/AsyncAPI.
A backend developer role (posted remotely via Antal) building modern, data-driven applications: designing RESTful APIs and scalable data/reporting/integration solutions with Node.js and TypeScript, using frameworks like NestJS or Ts.ED, Jest/Jasmine testing, and AI-assisted coding tools to boost productivity and quality.
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