Senior Software Engineer (React Native)

Signify Technology; Poland; On-site; PLN 260,000 - 360,000; Full time

Job summary

Signify Technology is seeking a Senior Software Engineer to own the React Native mobile app end-to-end, including architecture, performance and release processes. You will also work on the Next.js web app and Node.js backend in a full-stack capacity, with mobile focus driving key decisions.

The role demands 6+ years of experience, strong React Native and TypeScript skills, and a track record of ownership. Remote work is available for candidates in Poland or Georgia under a B2B contract.

Qualifications

• 6+ years of professional software engineering experience.
• Extensive, hands-on React Native experience with production apps.
• Strong TypeScript and Node.js experience.

Responsibilities

• Own the React Native app end to end, including architecture, performance, and release processes.
• Contribute to Next.js/React web app and Node.js backend as part of a full-stack role.
• Make architectural calls on mobile apps and integrate native modules where needed.
• Collaborate with the team and communicate ideas effectively.

Skills

React Native

TypeScript

Node.js

Next.js

React

GCP

Ownership

Communication

Job description

Senior Software Engineer (React Native, TypeScript, Node.js, Next.js, React)

B2B contract, long term with rolling extension

Remote, open to candidates based anywhere in Poland or Georgia

About the Client

One of our longstanding partners, an established European AI-driven SaaS company providing automation software to industrial IoT businesses worldwide. Their platform supports large manufacturing operations across the globe, and they're currently growing the team behind the mobile side of a core product used by their global customer base.

Project / Role Overview

You'll join a senior engineering team as a Senior Software Engineer, taking ownership of React Native applications on a core product for manufacturing and IoT customers globally, owning the React Native app end to end, including architecture, performance, and release process. Alongside that you'll spend time on the Next.js/React web app and the Node.js backend, so it's still a full stack role, just one where mobile is your primary focus and where your judgement on React Native decisions carries real weight.

Required Skills and Experience

• 6+ years of professional software engineering experience
• Extensive, hands on React Native experience, having owned mobile apps in production rather than just contributed features to one
• Comfortable making architectural calls on React Native apps including navigation, state, performance, and native module integration
• Strong TypeScript and Node.js experience
• Solid production experience with Next.js and React
• Some cloud experience, ideally GCP
• A track record of taking ownership of features or projects rather than just executing tickets
• Strong communicator who brings ideas to the table and works well within a team

Nice to Have

Experience with AI or LLM-powered features

Interview Process

2 stages - initial technical interview, then culture chat stage

Our Commitment to Diversity, Equity, and Inclusion

Signify’s mission is to empower every person, regardless of their background or circumstances, with an equitable chance to achieve the careers they deserve. Building a diverse future, one placement at a time.