Staff Software Engineer
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About the role
At Fluxon, we believe that how you build matters as much as what you build. We help businesses navigate their most important technology decisions with confidence, and take responsibility for seeing them through. Founded by ex-Googlers and startup veterans, we're proud to partner with teams behind some of the most ambitious products, including Google, OpenAI, Anthropic, Walmart and Stripe. Our work spans strategy, design, and engineering - often in complex, AI-driven environments - where clarity, speed and quality are the standard. We use AI intentionally, applying it only where it adds real value and expands what's possible. Care shapes everything we do. Inside Fluxon, you'll find a global, remote-first team of experienced builders, who are curious, kind and serious about their craft. We're building a place where people can take ownership, solve problems that matter and do work they're proud to stand behind. If you want to do your best work alongside people who care as much as you do, you'll feel at home here. Note: This position is fully remote and open to candidates based anywhere in Poland. 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
Requirements
- 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
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