# Senior AI Engineering | Careers | Open Mercato Source: https://www.openmercato.com/careers/senior-ai-engineering # Senior AI Engineering Interested in this role? ## About Open Mercato Open Mercato is an open-source, AI-supportive CRM/ERP foundation framework for building secure, enterprise-grade business applications. It helps teams move past the limits of rigid SaaS by giving them foundational architecture, security, and modularity, with AI-assisted engineering built in — Harness AI, developer sandboxes, and reusable AI skills. The Core Team combines core product engineering with forward-deployed customer work, treating every deployment as a source of product learning. ## The role As a Senior AI Engineer / Forward Deployed Engineer you implement Open Mercato with partners and strategic customers, turn business requirements into product specifications and architecture decisions, and use every implementation as a source of product learning. You design reusable modules, APIs, workflows, and AI skills; operate coding agents such as Codex and Claude to generate, refactor, test, and verify code; and help teams adopt AI-assisted engineering with reusable prompts and test harnesses. ## Responsibilities ### Core product - Improve core architecture, modules, APIs, developer experience, and extensibility. - Identify recurring implementation needs and turn them into reusable product capabilities. - Design enterprise-grade patterns for security, scalability, modularity, data modeling, workflows, and integrations. - Write clear specifications for coding agents. - Build reusable AI skills and implementation harnesses. - Maintain automated test coverage. - Contribute to releases, documentation, and guides. - Keep the product coherent, secure, and scalable. ### Forward deployed engineering - Work directly with partners and customers implementing Open Mercato. - Understand their business processes, requirements, and integration needs. - Translate customer problems into technical specifications. - Support teams in configuration, extension, and deployment. - Lead implementation discovery, solution design, technical workshops, and QA loops. - Identify product gaps from real-world needs. - Turn implementation learnings into core improvements. - Train developers in AI-assisted delivery practices. ## Requirements ### Technical skills - TypeScript. - Next.js and React. - PostgreSQL and SQL. - High-scale application architecture. - Enterprise software design patterns. - Secure, modular, maintainable software architecture. - Automated testing: Playwright, integration tests, unit tests. - Modern SDLC practices. - Working with coding agents (Codex, Claude, or similar). - Advanced AI-assisted coding techniques. - Creating reusable AI skills, prompts, and workflows. - Reviewing and improving AI-generated code. ### Product and delivery skills - Working directly with business users and stakeholders. - Gathering and structuring requirements. - Managing product scope and trade-offs. - Delivering features end to end — from discovery and specification to QA and release. - Explaining technical concepts to non-technical users. - Working independently with high ownership. - Turning ambiguous business problems into structured implementation plans. - Balancing customer needs with long-term architecture. ### Communication - English at C1/C2 level and Polish at C2 level. - Strong written communication. - High ownership and autonomy. - Comfortable working with customers, partners, developers, and product stakeholders. - Clear, structured thinking, with the ability to document decisions and specifications. ## Required experience At least one of: - A similar senior engineering, solution architecture, product engineering, or forward-deployed engineering role. - Meaningful open-source contributions. - Building, releasing, and maintaining real software products. - Experience with enterprise-grade SaaS, ERP, CRM, or business application platforms. - Leading implementation work from requirements to production delivery. ## Nice to have - Open-source community experience. - ERP, CRM, B2B commerce, operations, or workflow platform background. - Multi-tenant systems experience. - Permissions, roles, audit logs, security, and compliance expertise. - Developer platforms, SDKs, CLIs, or internal frameworks. - Training engineering teams. - Consultant, solution architect, or fractional CTO experience. - Public writing, conference talks, or technical content. ## How we work We work differently from a traditional software team. You will be expected to think like an architect, communicate like a product person, work with customers like a consultant, and operate coding agents like an AI engineering lead. Effectively 100% of our code is generated by coding agents — the work is architecture, specifications, tests, reviews, and product-learning loops, not manual coding. ## What we offer - Rate: 140–180 PLN/h net. - Contract: B2B / freelance. - Engagement: long-term collaboration. - Location: remote. - Work on a modern open-source enterprise software platform. - Direct impact on the core product and our AI methodology. - Access to real customer and partner implementation work. - A senior, product-oriented engineering environment. - Deep exposure to AI-assisted development, coding agents, reusable AI skills, and modern SDLC. ## Why join Open Mercato Open Mercato is a practical answer to one of the biggest problems in enterprise software: teams start from reusable foundations instead of rebuilding the same CRM/ERP plumbing, and use AI-assisted engineering to ship faster and safer, informed by real customer needs. You will help shape how modern enterprise applications are built — open-source, modular, secure, AI-assisted, and close to real customers. ## How to apply Send your profile — GitHub, LinkedIn, or portfolio — with short answers to: - What kind of enterprise software or product systems have you built? - How have you used AI coding agents in real work? - What open-source or product experience are you most proud of? - Why does the Open Mercato Core Team sound interesting to you? Last updated August 20, 2026 ## Software is about to be built completely differently.