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Full Time

Senior Fullstack Developer (PHP, React)/ 17 hours ago

SINGU
Attractive
Application ends: 2026-10-31

Quick Summary

SINGU is seeking a Senior Fullstack Developer (PHP, React) for their Technical Account Management team to design and implement custom solutions and integrations for enterprise real estate clients. The role requires 5+ years of commercial PHP backend development (7.4+/8), expertise in PostgreSQL, proven REST API design, experience with data import/integration pipelines, working knowledge of React, and a strong focus on security and performance. Candidates must be fluent in Polish and communicative in English (B2+), and have experience mentoring and using AI development tools. Compensation is PLN 18K - PLN 22K.

About SINGU

At SINGU, we are transforming how leading real estate companies manage their operations. Our goal is to become Europe's premier platform for managing warehouse, logistics, retail, and multi-site commercial real estate portfolios. We empower clients to protect revenue, enhance efficiency, and unlock new value across their business.

Our unified CAFM platform supports the daily operations of over 250 million m² of real estate globally, assisting more than 500,000 professionals. Following our integration with Micad (UK) and net-haus (Germany), we now help manage over 100,000 buildings in more than 35 countries.

Backed by a prominent growth equity investor, we are rapidly expanding and collaborating with global leaders such as Prologis, ECE, CTP, Hillwood, Logicor, GLP, and Unibail-Rodamco-Westfield. As we grow through strategic acquisitions and innovation, we uphold our core values: adaptability, collaboration, and client focus.

Join SINGU to help build Europe's leading property operations platform and make a significant impact on the real estate industry.

SINGU is one of Europe's fastest-growing PropTech companies. Our platform manages over 200 million sqm of commercial real estate for more than 500 clients across 35 countries, enabling property managers to digitalize and automate their operations.

About the Team

The Technical Account Management (TAM) team delivers custom solutions, specialized functionality, and system integrations for our largest enterprise clients, including international leaders like Prologis, P3, CTP, and AmRest.

A significant portion of our work involves data imports/exports and integrations with external systems such as ERP, HR, finance, and SSO. In these areas, security, data correctness, and database performance are paramount. Customizations must seamlessly integrate into a shared, multi-tenant product, emphasizing design quality alongside delivery speed.

Tech Stack

  • Backend: PHP 8 (Phalcon), REST APIs, Redis, background job queues
  • Database: PostgreSQL
  • Frontend: React (TypeScript)
  • Tooling: Git (Git Flow), Docker, CI/CD, PHPUnit, PHPStan
  • AI-assisted development: Claude / Cursor / Copilot are integral to our daily workflow

What You’ll Bring

Must-have

  • 5+ years of commercial PHP backend development (7.4+/8)
  • Expertise in PostgreSQL: query optimization, indexing, execution plans, and migrations on large datasets
  • Proven experience designing and maintaining REST APIs
  • Hands-on experience with data import pipelines and external system integrations (files, APIs, queues), including idempotency, validation, error handling, and reprocessing
  • Working knowledge of React: ability to deliver features end-to-end, not just read code
  • Strong focus on security (secure coding, access control, data protection) and performance for high-volume operations
  • Full ownership of delivered solutions, from technical design to production and support
  • Experience mentoring other developers and conducting meaningful code reviews
  • Active use of AI tools (Claude, Cursor, Copilot, ChatGPT) in daily work
  • Communicative English (B2+) for technical specifications, tickets, documentation, and occasional calls with client technical teams
  • Fluent Polish for internal team communication

Nice to Have

  • Phalcon framework experience
  • PostgreSQL tuning (partitioning, vacuum, planner) and performance troubleshooting in production environments
  • Experience with ERP / enterprise integrations (SAP, Dynamics, PeopleSoft) and SSO (SAML / OIDC)
  • Proficiency with Docker, AWS, CI/CD
  • Background in customization-heavy or multi-tenant B2B SaaS
  • Experience improving test automation and local development environments

What You’ll Do

  • Design and implement integrations and custom functionality for enterprise clients
  • Build secure, high-performance backend services in PHP and extend React frontends as needed for features
  • Design and optimize data import/export processes with a focus on security, data integrity, and performance
  • Identify and resolve performance bottlenecks in application and database layers
  • Participate in technical breakdown and estimation processes before development begins; co-own API contracts
  • Review code and mentor mid-level developers; serve as a go-to expert for backend and database topics
  • Collaborate with the Tech Lead, QA, and other SINGU teams (Platform, Core)

Why This Role

  • Engage in real integrations with enterprise systems, not just toy projects
  • Directly impact systems used daily by some of Europe's largest companies
  • Exercise senior influence: your technical opinion will shape the team's development approach
  • Join a team that prioritizes clean code, security, and performance

If this role aligns with your skills, we encourage you to apply and help us build technology that supports critical operations every day.

Compensation Range: PLN 18K - PLN 22K

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SINGU

SINGU

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    Kraków, małopolskie
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