Senior Backend Developer (Node.js)
The Senior Backend Developer (Node.js) will be responsible for architecting and building scalable backend services using Node.js, focusing on integrations, data synchronization, and building APIs to support thousands of concurrent users. Key duties include collaborating with cross-functional teams, writing maintainable code, performing code reviews, and mentoring junior developers. This role requires strong proficiency in JavaScript development, Node.js, and SQL, and involves a hybrid schedule between the Varaždin or Zagreb offices in Croatia.
Senior Full-Stack Engineer
The role seeks a Senior Full Stack Engineer to own end-to-end feature delivery using modern tools across the stack, reporting to an Engineering Manager. Key responsibilities include building scalable React interfaces, architecting APIs with NestJS and Postgres, and managing secure OAuth 2.0 flows. This position requires building and maintaining features from UI/UX to the database, working collaboratively across the organization to deliver clean, well-documented code.
Senior Software Engineer
Sydecar is seeking Senior Software Engineers to build powerful tools that simplify the execution process in private markets. Responsibilities include designing and delivering full-stack solutions using TypeScript (React + NestJS), leading projects, and maintaining a high-quality codebase. Engineers will join a collaborative team focused on scaling infrastructure and launching new features for fund management and SPV products.
Senior Software Engineer
The Integrations Team Senior Engineer will take a technical leadership role in designing, building, and supporting world-class, high-scale, and resilient data pipelines connecting HackerRank products to third-party tools. Responsibilities include technical design, partnering with leadership on execution, supporting enterprise customers, and improving engineering practices, potentially utilizing AI-powered development tools.
Empirical - Freelance Tech Interviewer
The Freelance Technical Interviewer will join a community of senior engineers to assess candidates' technical depth, communication, and engineering quality for fast-moving, AI-driven startups. Responsibilities include conducting structured technical and behavioral interviews using standardized guides and providing written feedback. This role is ideal for senior professionals seeking flexible, remote work focused on identifying and nurturing exceptional talent.
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Senior Software Engineer
Mesa is seeking a Senior Software Engineer to build and drive innovation in their Card and Mortgage products. Key responsibilities include designing and architecting systems to scale massively, innovating on the mortgage product, and establishing engineering best practices for the early team. This role demands an intense pace, strong ownership, and the ability to thrive in ambiguity while delivering outlier results.