Senior React Software Developer (f/m/d)

Introducing Thinkproject Platform

Pioneering a new era and offering a cohesive alternative to the fragmented landscape of construction software, Thinkproject seamlessly integrates the most extensive portfolio of mature solutions with an innovative platform, providing unparalleled features, integrations, user experiences, and synergies.

By combining information management expertise and in-depth knowledge of the building, infrastructure, and energy industries, Thinkproject empowers customers to efficiently deliver, operate, regenerate, and dispose of their built assets across their entire lifecycle through a Connected Data Ecosystem.

About the Role

We are looking for a Senior React Software Developer (f/m/d) to own core product features within our cloud based SaaS platform. You will design, build, and maintain frontend services that are used by major infrastructure organisations across Europe — collaborating daily with product managers, architects, and backend engineers across our international team.

This is a hands-on engineering role. You will write production code every day, contribute to architecture decisions, and be responsible for the quality of what you ship from requirements through to post-release support.

Tech you will work with daily:
React 18+ | TypeScript strict | RTK Query | React Hook Form + Zod | MUI / design tokens | REST APIs | Docker | Kubernetes | Azure

Key Responsibilities

Frontend Engineering

• Design, develop, and maintain React frontend services on our SaaS platform
• Write clean, testable, well-documented TypeScript following strict-mode standards
• Build and consume RESTful APIs in close collaboration with backend engineers

Architecture & Code Quality

• Apply object-oriented design principles and patterns (SOLID, DDD, CQRS) where they solve real problems — not as a checklist
• Participate in code reviews and hold the bar for engineering standards across the team
• Identify and resolve performance bottlenecks before they reach production

Delivery & Continuous Improvement

• Contribute to the full software development lifecycle — from requirements and architecture through to deployment and production support
• Engage in technical discussions and help improve our development processes, tooling, and delivery practices

Domain Integration

• Work with BIM data formats and standards (IFC, BCF, COBie) as part of integration features —understanding the construction domain is part of what makes this role different from a generic
  frontend position

Required Skills & Qualifications

You have 6+ years of professional React experience and have shipped production-grade TypeScript at scale. Specifically:

• 6+ years of professional experience in React development
• Production experience with React 18+, TypeScript (strict mode), RTK Query, React Hook Form+ Zod, and MUI / design tokens
• Solid understanding of object-oriented design principles and software architecture patterns: SOLID, DDD, CQRS
• Experience building and consuming RESTful APIs
• Familiarity with Azure and containerisation (Docker / Kubernetes)
• Unit testing and test-driven development — in practice, not just in principle
• Comfortable in Agile/Scrum delivery environments with high individual ownership
• English fluency (written and spoken)

Nice-to-Have (Bonus Skills)

• Backend development experience (PHP or C#)
• Microservices or event-driven architecture (Azure Service Bus, MassTransit)
• Prior experience in construction, engineering, or real estate software domains

Soft Skills

• Engineering rigour — you care about the correctness and maintainability of what you ship, not just whether it runs
• Ownership mindset — you build it, you run it, you improve it
• Clear written and verbal communication: able to explain technical decisions to non-engineering stakeholders
• Collaborative: you build working relationships across product, backend, and design without friction
• Comfortable with ambiguity — you can move from incomplete requirements without waiting for perfect conditions

What success looks like

• Month 3: Independently delivering features across the React codebase; code reviews are valued by the team; no regressions introduced
• Month 6: Owning a non-trivial product area end-to-end; contributing to architecture discussions with evidence-backed proposals
• Month 12: Recognised as a technical reference point for React standards on the team; at least one significant performance or quality improvement delivered to production

You're probably NOT a fit if

• You prefer to work within a fully defined spec with minimal technical ownership
• You are not comfortable with TypeScript strict mode in production
• You are not interested in the construction and infrastructure domain
• You need a large team around you to make technical decisions

Viviana Baltag

How to apply

Submit your application at careers.thinkproject.com, including:

• Salary expectations
• Potential start date
• A short write-up (max 300 words) on the most complex frontend architecture decision you have made in production — what the problem was, what you chose, and what you would do differently now

Working at thinkproject.com - think career. think ahead.

_#LI-VB1

_#LI-Hybrid