Top Tech Jobs & Startup Jobs in Krakow

Lead and architect end-to-end QA automation for a distributed data SaaS platform: build scalable frameworks, embed tests in CI/CD, drive integration/API/performance/data-integrity testing, eradicate flaky tests, mentor engineers, own release quality sign-off, collaborate across product and engineering, and apply AI tools to accelerate testing and optimize QA metrics.

Owner of messaging, content, and sales enablement for Comet and Opik targeted at LLM engineers, ML researchers, and data scientists. Produce customer-facing collateral, blog and long-form content, partner messaging, demo assets, and represent Comet at events. Work cross-functionally with Product, Sales, and Community Engineering to drive growth and enable technical sales.

Build and test AI-agent features and internal agent frameworks for a proactive cybersecurity platform. Implement and integrate generative AI systems (agents and RAG), stay current with AI research, and apply innovations to product development and evaluation within a security-focused environment.

Design and implement user-facing iOS features, build scalable mobile architecture, collaborate with Product and Design, ensure high-quality tested releases, improve app performance and reliability, and take ownership of shipped features in a remote, fast-moving startup.

Lead and evolve Chess.com’s creative vision and visual identity across marketing, product, and brand. Design and art direct major campaigns, launches, and performance marketing; mentor and grow the creative team; partner with Product, Marketing, Partnerships, and Content to translate strategy into compelling multi-channel creative; advance brand guidelines and design systems; manage creative resourcing and asset pipelines to deliver work that builds brand equity and drives measurable business growth.

Build and maintain the open-source Cosmo Router in Go: develop performant, low-GC code, work on AST transformations and compiler backends, add data source support (gRPC, OpenAPI, SOAP), improve batching and telemetry, run penetration tests, troubleshoot with customers, review and accept OSS contributions.

Fractional DevOps/Cloud Infrastructure Engineer to design and build AWS Dev/UAT/Prod environments, implement Infrastructure as Code with Terraform, create CI/CD pipelines using GitHub Actions, and implement monitoring, logging, alerting, and access/security practices. Fintech/crypto/payments experience preferred. ~20 hours/week, NYC preferred, US remote considered.

Design, deploy, and govern enterprise-scale data architectures and platforms to support analytics and AI. Define modeling standards, integration pipelines, data quality, lineage, and security. Lead technical direction, mentor engineers, evaluate AI tooling, and support proofs of concept and solution roadmaps that enable generative AI and RAG solutions.

Build and optimise Braze email templates and reusable components using HTML, CSS, Liquid, Content Blocks, and Connected Content. Create scalable modular template frameworks, implement dynamic personalised content, conduct QA and rendering validation, troubleshoot issues, collaborate with marketing/data/engineering, document systems, and support enterprise release cycles for a regulated insurance migration.

Work on Zed's open source codebase: triage issues, fix bugs, implement community-requested features, review pull requests, improve GitHub processes, and optimize performance and UX while collaborating with community members.