Tech lead (PHP+React)

About SINGUSINGU is one of the fastest-growing PropTech companies in Europe. Our platform manages over 200 million sqm of commercial real estate for 500+ clients in 35 countries, helping property managers digitalize and automate their operations - from maintenance and inspections to portfolio management.We value adaptability, collaboration, trust and ambition, and we put our clients at the heart of every decision.About the TeamThe TAM (Technical Account Management) area delivers customizations, dedicated functionality and system integrations for SINGU’s largest enterprise clients - international leaders in logistics and commercial real estate such as Prologis, P3, CTP and AmRest.Following the onboarding of a new strategic enterprise client, we are establishing a second TAM team dedicated to tailoring the SINGU platform to this client’s operations. The team will be responsible for the full lifecycle of the client’s customizations - from discovery and solution design, through integrations and data migration, to delivery, rollout and continuous improvement.We are looking for a Tech Lead to take technical ownership of this team from day one. You will define its technical direction and ways of working, act as the primary technical point of contact for the client, and ensure that every customization is delivered in a way that remains consistent with, and sustainable for, our shared multi-tenant product.The domain is demanding: requirements originate from complex business processes and evolve over time, while security, data integrity and database performance are non-negotiable.Tech StackBackend: PHP 8 (Phalcon), REST APIs, Redis, background job queuesFrontend: React (TypeScript)Mobile: Flutter (delivered in collaboration with the wider TAM team)Database: PostgreSQLTooling: Git (Git Flow), Docker, CI/CD, PHPUnit, PHPStanAI-assisted development: Claude / Cursor / Copilot are part of our daily workflowWhat You’ll BringMust-haveCommunication (English & Polish) - Fluent English (C1) - you run workshops, discovery calls and status meetings with international clients independently, without a translator or intermediary - Fluent Polish - the team works in Polish internally - You can turn a vague business request into a clear technical scope, explain trade-offs to non-technical stakeholders, and say “no” or “not yet” with arguments - Experience writing specifications, solution designs and estimates that clients sign off onTechnical leadership - 1+ year as a Tech Lead (or equivalent) of a product/delivery team of 3+ engineers - You own architecture and technical decisions - and are accountable for them in production - You decompose epics into well-defined, estimable tasks before coding starts (Definition of Ready, API contracts, backend/frontend split) - You make delivery predictable: planning, estimation, managing ad-hoc client requests, protecting the team from context switching - You raise the technical bar of the team: code reviews, mentoring, technical onboarding, engineering standardsEngineering - 5+ years of commercial PHP (7.4+/8) at scale - clean, testable, maintainable code - Production React experience (TypeScript preferred) - Strong PostgreSQL - schema design, performant queries, migrations, execution plans - Designing and owning REST APIs and integrations with external systems (imports, exports, SSO) - Security-by-default mindset (input validation, access control, data protection) - You actively use AI tools in your workflow and can guide the team in using them wellNice to HaveEnterprise / customization-heavy B2B SaaS background (multi-tenant, per-client variants)Experience with ERP or enterprise integrations (SAP, Dynamics, PeopleSoft), SFTP/CSV/API importsPhalcon frameworkAWS, Docker, Kubernetes, CI/CD pipelinesMobile (Flutter) awarenessImproving developer experience: local environments, test automation, CI speedWhat You’ll DoOwn the technical direction of the new TAM team - architecture, code quality and deliveryEstablish the team’s ways of working - delivery process, Definition of Ready/Done, code review standards and technical onboarding, aligned with SINGU engineering practicesAct as the primary technical contact for the client - requirement workshops, solution design, estimates, technical status updates and escalations (in English)Translate client needs into specifications and tasks the team can deliver without surprises; own the final technical specificationOwn sprint planning, estimation and prioritization, balancing committed scope with ad-hoc client requests in alignment with account managersMake architectural decisions for customizations so they don’t fragment the core product; align with Platform/Core teams and the Chief ArchitectReview code, mentor engineers, run technical onboarding for newcomersDrive engineering improvements in the team: testability, local environments, automated tests, CIStay hands-on - roughly 40–60% of your time building and reviewing production codeThis is a technical leadership role, not a people-management role - performance reviews, compensation and hiring decisions remain with the Engineering Manager.You’ll report to the Engineering Manager and work closely with account managers, QA, the Head of Software Engineering and the CTPO.Why This RoleA greenfield opportunity - you shape the team’s architecture, engineering practices and technical standards from the ground upStrategic visibility - you lead the technical partnership with one of SINGU’s most important enterprise clientsTechnically demanding work - enterprise integrations, data, performance and security, far beyond standard CRUDA balanced role - technical leadership, client engagement and hands-on engineering in one position