Staff Software Engineer

Fluxon

Poland, Remote (Poland) Remote permanent

Posted: November 17, 2025

Job Description

Who we are

We are Fluxon, a product development team founded by ex-Googlers and startup founders. We offer full-cycle software development: from ideation and design to build and go-to-market. We partner with visionary companies, ranging from fast-growing startups to tech leaders like Google and Stripe, to turn bold ideas into products with the power to transform the world.

The role is open to candidates based in Poland preferably in Krakow, Wroclaw or Gdansk.

About the role

As a Staff Software Engineer at Fluxon, you'll drive the end-to-end delivery of products to market while learning, contributing, and growing in partnership with our leadership team

You'll be responsible for:

• Guiding project delivery all the way to the user, leading projects, building and iterating in a dynamic environment

• Partnering directly with clients to understand their needs, and achieve business goals

• Defining product requirements, identifying appropriate system designs and planning development in partnership with our Product and Design teams

• Supporting development of a healthy and effective engineering culture

You'll work with a diversity of technologies, including:

• Languages

• TypeScript/JavaScript, Java, .Net, Python, Golang, Rust, Ruby on Rails, Kotlin, Swift

• Frameworks

• Next.js, React, Angular, Spring, Expo, FastAPI, Django, SwiftUI

• Cloud Service Providers

• Google Cloud Platform, Amazon Web Services, Microsoft Azure

• Cloud Services

• Compute Engine, AWS Amplify, Fargate, Cloud Run

• Apache Kafka, SQS, GCP CMS

• S3, GCS

• Technologies

• AI/ML, LLMs, Crypto, SPA, Mobile apps, Architecture redesign

• Google Gemini, OpenAI ChatGPT, Vertex AI, Anthropic Claude, Huggingface

• Databases

• Firestore(Firebase), PostgreSQL, MariaDB, BigQuery, Supabase

• Redis, Memcache

Qualifications

• 7+ years of industry experience in software development

• Experience leading development through the full product lifecycle, including CI/CD, testing, release management, deployment, monitoring and incident response

• Fluent in the design and implementation of scalable system architectures, data structures and algorithms, and effective development practices

What we offer

• Exposure to high-profile SV startups and enterprise companies

• Competitive salary

• Fully remote work with flexible hours

• Flexible paid time off

• Profit-sharing program

• Healthcare

• Parental leave, including adoption and fostering

• Gym membership and tuition reimbursement

• Hands-on career development

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