Fluxon
Fluxon is a product and software development company based out of San Francisco, California. We are founded by a group of ex-Googlers and startup founders who love building great products. We are obsessed with quality and speed, and we love the work we do.
Our clients comprise of the most innovative and forward-thinking companies in the world.
We only hire the best of the best in the world and we’re looking for amazing people to join our expanding team.
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Who we are
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 Open AI, Anthropic, Stripe, Walmart and Google.
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.
The role is open to candidates based in Poland
About the Role
As a Senior Product Designer at Fluxon, you'll lead design end-to-end on ambitious projects, often working directly with founders and product leads to shape what gets built. We are looking for design generalists, someone who owns the design surface, thrives in ambiguity, and cares as much about why something gets built as how it ships.
While specific responsibilities may differ from project to project, you will:
- Partner with founders, product leads, and other stakeholders to turn business goals into experiences customers love
- Lead design end-to-end, from discovery and research through interaction design and production-ready execution, calling the right level of depth for each project
- Make the right call when user needs, technical constraints, and business goals pull in different directions
- Collaborate closely with clients, PMs, and engineers to set the direction and ship high quality work
- Bring a point of view on craft, process, and where the field is going, while staying current with new technologies and design trends
Qualifications
- Experience leading product design end-to-end, from strategy through to production ready execution, delivering work that customers love and drives business results
- Strong judgment and ability on process, knowing when to go deep on research and when to move fast
- Strong UX foundations across the full discovery and design process, from research through interaction design, user testing and accessibility
- Strong visual craft across layout, typography, iconography, color, and motion, with the ability to take work to a polished, production ready bar
- Excellent communication and presentation skills across written, visual, and spoken formats, with experience presenting directly to clients
- Comfortable collaborating closely with clients, PMs, and engineers, including managing expectations, navigating disagreement, and keeping the work aligned
- Experience shipping with startups or founding teams, comfortable building from zero without established design foundations or process
- Experience working with US clients (European clients a plus)
A note on applications - A portfolio is a required part of your application. We treat it as a critical element of the review process, and it must be included in your submission.
What we offer
- Remote-first, flexible work with a budget to set up a work space that works for you
- Localized healthcare coverage to support you and your family’s wellbeing
- Flexible paid time off with a minimum of 3 weeks per year (plus holidays)
- "No internal meetings" on Fridays, so you can focus on deep, uninterrupted work
- A professional growth budget for learning that matters to you – whether it’s developing your technical skills or learning a new language
- A monthly wellness allowance to support your physical and mental health
- Annual company offsites, where we gather in person to build meaningful connections
- A competitive salary that reflects your expertise, impact and experience
- Profit-sharing, so you can benefit directly from the value we build together
- A paid sabbatical program, designed for rest, renewal and fresh perspective
We believe diverse teams perform better, and an inclusive environment is essential to building a successful organization. We welcome applicants from all backgrounds, experiences, and perspectives. We are an equal opportunity employer and are committed to providing accommodations throughout the hiring process.
This role may use AI-assisted tools to support initial screening. All assessments and decisions are made by a human reviewer.
Ready to apply?
Apply to Fluxon
Who we are
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.
About the Role
We're looking for a Talent Partner based in Poland: someone who's excited to lead the full recruitment process with passion, while staying organized, motivated, and caring deeply about helping candidates reach their potential
As our Talent Partner, you’ll wear a few different hats, all aimed at making sure we build an amazing team
In this role, you’ll focus on:
- Leading end-to-end process for roles - sourcing, screening, interview coordination, and hiring for technical as well as non-technical roles while keeping our people-first culture in mind!
- Creating recruiting plans that help us grow our candidate pool for current and future hiring needs
- Proactively searching for passive candidates on various job platforms; Developing and implementing innovative, scalable global sourcing strategies, encompassing outbound campaigns, talent mapping and community engagement
- Working in partnership with our Hiring Managers, Interviewing panels, People Ops team, and others to create the best candidate-centric experience
- Keeping our ATS Greenhouse organized and up-to-date for easy tracking of key hiring metrics
- Always be open to gathering and providing feedback to the team to help improve our processes
Our HQ is in San Francisco, but this position can be remote from anywhere in Poland
Qualifications
We’d love to hear from you if you:
- Have at least 5 years of experience in technical recruiting in high dynamic environment
- Are comfortable hiring across a range of functions, including Product, Engineering, Operations etc
- Have experience working with a globally distributed team
- Demonstrate strong sourcing instincts, fluency with sourcing strategies and modern tools
- Think creatively, lead initiatives and ensure an exceptional candidate experience
- Have excellent written and verbal communication skills, with English proficiency of at least upper-intermediate level
- Have experience with ATS tools, reporting, and data-driven recruiting practices
(Please make sure your resume describes the impact of the work you’ve accomplished :)
What we offer
- Remote-first, flexible work with a budget to set up a work space that works for you
- Localized healthcare coverage to support you and your family’s wellbeing
- Flexible paid time off with a minimum of 3 weeks per year (plus holidays)
- "No internal meetings" Fridays, so you can focus on deep, uninterrupted work
- A professional growth budget for learning that matters to you – whether it’s developing your technical skills or learning a new language
- A monthly wellness allowance to support your physical and mental health
- Annual company offsites, where we gather in person to build meaningful connections
- A competitive salary that reflects your expertise, impact and experience
- Profit-sharing, so you can benefit directly from the value we build together
- A paid sabbatical program, designed for rest, renewal and fresh perspective
Ready to apply?
Apply to Fluxon
Who we are
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.
About the role
As a Brand & Growth Designer at Fluxon, you’ll help shape and evolve our visual presence across a wide range of touchpoints, from brand and marketing materials to sales assets, internal communications, and event collaterals. You’ll work closely with the Branding team, Growth team, and Senior Brand Designer to support both day to day design needs and larger brand initiatives.
This role is well suited for a versatile designer who enjoys working across different types of visual work, from brand applications and presentation design to marketing assets and motion. You’re comfortable executing defined tasks independently while collaborating closely with others, receiving feedback, and growing within a strong design culture and growth designer role. You’ll be expected to actively contribute from day one, while continuing to refine your craft and expand your impact across Fluxon’s brand, marketing, and growth efforts.
While specific responsibilities may vary, you will:
- Design and deliver brand aligned materials across marketing, sales, and internal touchpoints
- Create and maintain case studies, proposals, pitch decks, and other client facing materials
- Design visual assets for marketing initiatives including social media, campaigns, events, and digital content
- Support the creation of sales and growth materials that clearly communicate Fluxon’s capabilities and work
- Contribute to brand evolution by creating new visual assets, templates, and design explorations
- Produce lightweight motion, animation, or dynamic visuals when helpful for storytelling or marketing materials
- Apply and maintain brand guidelines to ensure visual consistency across all touchpoints
- Collaborate with designers, growth team members, and other stakeholders to deliver clear and effective visual communication
- Prepare and hand off files for digital use, publishing, or production
- Stay up to date with branding, marketing design, and visual communication trends, bringing ideas to the team
Qualifications
- 4+ years of hands on experience in brand, visual, or marketing design, or equivalent experience demonstrated through a strong portfolio
- Proven experience working on real world design projects across multiple formats (presentations, marketing assets, case studies, social media, motion and digital)
- Strong foundations in graphic design, typography, layout, and visual composition
- Confidence using design tools such as Figma and Adobe Creative Suite (or equivalent) in a professional environment. Experience with animation and motion tools
- Ability to apply and scale existing brand guidelines thoughtfully and consistently, with attention to detail
- Comfortable owning design tasks from brief to delivery, while collaborating and iterating with feedback
- Ability to manage multiple tasks and priorities in a fast-paced environment
- Clear communication skills and a collaborative, proactive mindset
- Motivation to continue growing as a versatile designer and contribute to the evolution of Fluxon’s brand and visual presence
- Adapt quickly to different design needs as Fluxon grows, supporting brand, marketing, and business development initiatives.
What we offer
- Remote-first, flexible work with a budget to set up a work space that works for you
- Localized healthcare coverage to support you and your family’s wellbeing
- Flexible paid time off with a minimum of 3 weeks per year (plus holidays)
- "No internal meetings" on Fridays, so you can focus on deep, uninterrupted work
- A professional growth budget for learning that matters to you – whether it’s developing your technical skills or learning a new language
- A monthly wellness allowance to support your physical and mental health
- Annual company offsites, where we gather in person to build meaningful connections
- A competitive salary that reflects your expertise, impact and experience
- Profit-sharing, so you can benefit directly from the value we build together
- A paid sabbatical program, designed for rest, renewal and fresh perspective
Ready to apply?
Apply to Fluxon
Who we are
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 with a strong preference for a candidate based in Poland (Krakow, Wroclaw or Gdansk)
About the role
As an AI Engineer at Fluxon, you’ll take the lead in designing, building and deploying AI-powered applications for our clients.
You'll be responsible for:
- System Architecture: Design and implement end-to-end AI systems and their parts, including data ingestion, preprocessing, model inference, and output structuring
- Generative AI Development: Build and optimize RAG (Retrieval-Augmented Generation) systems and Agentic workflows using frameworks like LangChain, LangGraph, ADK (Agent Development Kit), Genkit
- Production Engineering: Deploy models to production environments (AWS/GCP/Azure) using Docker and Kubernetes, ensuring high availability and scalability
- Evaluation & Monitoring: Implement feedback loops to evaluate model performance (accuracy, hallucinations, relevance) and set up monitoring for drift in production
- Collaboration: Work closely with other engineers to integrate AI endpoints into the core product and with product managers to define AI capabilities
- Model Optimization: Fine-tune open-source models (e.g., Llama, Mistral) for specific domain tasks and optimize them for latency and cost
You'll work with technologies including:
Languages
- Python (Preferred)
- Java / C++ / Scala / R / JavaScript
AI / ML
- LangChain
- LangGraph
- Google ADK
- Genkit
- OpenAI API
- LLM - Large Language Model
- Vertex AI
Cloud & Infrastructure
- Platforms: Google Cloud Platform (GCP) or Amazon Web Services (AWS)
- Storage: Google Cloud Storage (GCS) or AWS S3
- Orchestration: Temporal, Kubernetes
Data Stores
- PostgreSQL
- Firestore
- MongoDB
Monitoring & Observability
- GCP Cloud Monitoring Suite
Qualifications
- 5+ years of industry experience in software engineering roles
- Strong proficiency in Python or any preferred AI programming language such as Scala, Javascript and Java
- Strong understanding of Transformer architectures, embeddings, and vector similarity search
- Experience integrating with LLM provider APIs (OpenAI, Anthropic, Google Vertex AI)
- Hands-on experience with agent workflows like LangChain, LangGraph
- Experience with Vector Databases and traditional SQL / NoSQL databases
- Familiarity with cloud platforms, preferably GCP or AWS
- Understanding of patterns like RAG (Retrieval-Augmented Generation), few-shot prompting, and Fine-Tuning
- Solid understanding of software development practices including version control (Git) and CI/CD
Nice to have:
- Experience with Google Cloud Platform (GCP) services, specifically Vertex AI, Firestore, and Cloud Functions
- Knowledge of prompt engineering techniques (Chain-of-Thought, ReAct, Tree of Thoughts)
- Experience building "Agentic" workflows where AI can execute tools or API calls autonomously
What we offer
- Remote-first, flexible work with a budget to set up a work space that works for you
- Localized healthcare coverage to support you and your family’s wellbeing
- Flexible paid time off with a minimum of 3 weeks per year (plus holidays)
- "No internal meetings" Fridays, so you can focus on deep, uninterrupted work
- A professional growth budget for learning that matters to you – whether it’s developing your technical skills or learning a new language
- A monthly wellness allowance to support your physical and mental health
- Annual company offsites, where we gather in person to build meaningful connections
- A competitive salary that reflects your expertise, impact and experience
- Profit-sharing, so you can benefit directly from the value we build together
- A paid sabbatical program, designed for rest, renewal and fresh perspective
Ready to apply?
Apply to Fluxon
Who we are
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.
About the role
You are an architect for quality with the vision to define and build QA processes for any sort of app. You can work at any company in the world, but you choose us because you want to use your versatility and "nose for bugs" to solve new and interesting challenges. You are a champion of quality on multi-disciplined teams, blending a deep understanding of user experience with a technical approach to breaking systems.
You are a thought partner to developers and product managers — someone who doesn't just find bugs but identifies systematic gaps. You are brilliant yet humble; a doer with high integrity who takes ownership of quality and enjoys a full life outside of work.
If this sounds like you, we would love to chat!
Note: This position is fully remote with a strong preference for a candidate based in Poland (Krakow, Wroclaw or Gdansk) or Portugal (Lisbon).
Key responsibilities
- Define and evolve the end-to-end QA strategy and processes for entire products, determining the most effective manual techniques to ensure "world-class" standards of quality
- Plan and perform exploratory and manual testing for complex features, going beyond specifications to ensure the user experience is intuitive and seamless
- Be the champion and source-of-truth for quality, helping both internal teams and clients identify systematic quality gaps while building processes to close them. Evangelize "quality at the source" across the development lifecycle
- Own the documentation and reporting of quality metrics and bug tracking, ensuring the product team, engineers, and clients have clear visibility into project health
- Partner with the PMs and TPMs to define acceptance criteria and manage release approvals
- Lead cross-functional investigations into complex quality issues, driving them through to resolution with engineering and product teams
Qualifications
- 5+ years of experience in testing complex web, mobile, and API-based applications
- 2+ years of experience acting as a sole QA leading a project, with the ability to build a testing strategy from a blank slate
- A "nose for bugs" and the manual testing skills to break an app in ways a script might miss. You understand user experience as much as code
- Strong understanding of client-server architecture, modern engineering stacks, and the ability to use DevTools and API clients (like Postman) to perform deep technical audits
- Practical understanding of how manual testing fits into a modern CI/CD pipeline and the ability to collaborate on release cycles
- Proficiency at maintaining test documentation and communicating test results to key stakeholders
- A mindset for risk-based testing, with the ability to clearly articulate technical risks and quality tradeoffs to both engineers and non-technical stakeholders
- A proactive personality who learns quickly while working independently and is always looking for ways to improve the "how" of building software
- Upper-Intermediate level of written and spoken English
What we offer
- Remote-first, flexible work with a budget to set up a work space that works for you
- Localized healthcare coverage to support you and your family’s wellbeing
- Flexible paid time off with a minimum of 3 weeks per year (plus holidays)
- "No internal meetings" Fridays, so you can focus on deep, uninterrupted work
- A professional growth budget for learning that matters to you – whether it’s developing your technical skills or learning a new language
- A monthly wellness allowance to support your physical and mental health
- Annual company offsites, where we gather in person to build meaningful connections
- A competitive salary that reflects your expertise, impact and experience
- Profit-sharing, so you can benefit directly from the value we build together
- A paid sabbatical program, designed for rest, renewal and fresh perspective
Ready to apply?
Apply to Fluxon
Who we are
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.
About the role
As a Senior Technical Project Manager at Fluxon, you’ll lead complex products end-to-end and bring clarity to ambiguity
We’re looking for someone who blends technical depth with sharp project instincts, thrives in dynamic environments, and brings integrity, structure, and heart to every team they’re part of
While specific responsibilities may differ from project to project, you will:
- Coordinate cross-functionally with Product and Engineers to explore solutions, define specifications, and continuously communicate project status and needs
- Use project management tools (e.g., Jira, Confluence) to manage documentation, workflows, and progress tracking
- Ensure project reports are accurate, up-to-date, and shared on time
- Provide clear visibility into project progress to leadership and stakeholders, supporting effective decision-making, approvals, and direction
- Organise and lead project reviews with key stakeholders to share progress, align on upcoming milestones, facilitate and support decision-making, and proactively mitigate risks. Build and maintain detailed project plans, ensuring effective management of deadlines, deliverables, and project goals
- Gain domain expertise and engage relevant subject-matter experts by asking the right questions, prioritization, and timely follow-up to ensure blockers are removed
- Leverage past experience to identify improvement opportunities and promote best practices that elevate project performance
Qualifications
- Bachelor's degree
- Engineering or QA background
- Fluent in English with experience collaborating directly with Executives
- 5+ years in IT project management; 3+ years working in Agile environment
- Solid experience with Agile practices, including 1-week sprints and Program Increment planning
- Proven ability to bring structure to ambiguous environments and build strong relationships across all levels of the organisation
- Experience working with distributed/global product and engineering teams
- Strong ability to understand complex technical concepts and translate them for non-technical stakeholders
- Ability to influence without authority, drive alignment, build trust and strong stakeholder support in a matrixed environment
- Strong negotiation skills and the ability to drive outcomes through structured processes and collaborative networks
- Excellent communication skills, with the ability to convey information clearly and concisely in both verbal and written forms, including well-structured documentation
- Self-starter: energetic, adaptable and collaborative, with a customer-focused mindset and a proactive approach to driving results.Comfortable collaborating with multiple cross-functional groups, including business, engineering, design, and QA
- Hands-on experience driving projects integrating AI capabilities into products or workflows, with the ability to translate AI requirements, risks, and constraints to stakeholders
What we offer
- Remote-first, flexible work with a budget to set up a work space that works for you
- Localized healthcare coverage to support you and your family’s wellbeing
- Flexible paid time off with a minimum of 3 weeks per year (plus holidays)
- "No internal meetings" Fridays, so you can focus on deep, uninterrupted work
- A professional growth budget for learning that matters to you – whether it’s developing your technical skills or learning a new language
- A monthly wellness allowance to support your physical and mental health
- Annual company offsites, where we gather in person to build meaningful connections
- A competitive salary that reflects your expertise, impact and experience
- Profit-sharing, so you can benefit directly from the value we build together
- A paid sabbatical program, designed for rest, renewal and fresh perspective
Ready to apply?
Apply to Fluxon
Who we are
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 with a strong preference for a candidate based in Poland (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
- Remote-first, flexible work with a budget to set up a work space that works for you
- Localized healthcare coverage to support you and your family’s wellbeing
- Flexible paid time off with a minimum of 3 weeks per year (plus holidays)
- "No internal meetings" Fridays, so you can focus on deep, uninterrupted work
- A professional growth budget for learning that matters to you – whether it’s developing your technical skills or learning a new language
- A monthly wellness allowance to support your physical and mental health
- Annual company offsites, where we gather in person to build meaningful connections
- A competitive salary that reflects your expertise, impact and experience
- Profit-sharing, so you can benefit directly from the value we build together
- A paid sabbatical program, designed for rest, renewal and fresh perspective
Ready to apply?
Apply to Fluxon
Who we are
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 with a strong preference for a candidate based in Poland (Krakow, Wroclaw or Gdansk)
About the role
As a Senior Software Engineer at Fluxon, you'll have the opportunity to bring products to market while learning, contributing, and growing with our team.
You'll be responsible for:
- Driving end-to-end implementations all the way to the user, collaborating with your team to build and iterate in a dynamic environment
- Engaging directly with clients to understand business goals, give demos, and debug production issues
- Informing product requirements, identifying appropriate technical designs in partnership with our Product and Design teams
- Proactively communicating progress and challenges in your work and seeking help when you need it
- Performing code reviews and cross-feature validations
- Providing mentorship in your areas of expertise
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
- 5+ years of industry experience in software development
- Experienced with the full product lifecycle, including CI/CD, testing, release management, deployment, monitoring and incident response
- Fluent in software design patterns, scalable system architectures, tooling, fundamentals of data structures and algorithms
What we offer
- Remote-first, flexible work with a budget to set up a work space that works for you
- Localized healthcare coverage to support you and your family’s wellbeing
- Flexible paid time off with a minimum of 3 weeks per year (plus holidays)
- "No internal meetings" Fridays, so you can focus on deep, uninterrupted work
- A professional growth budget for learning that matters to you – whether it’s developing your technical skills or learning a new language
- A monthly wellness allowance to support your physical and mental health
- Annual company offsites, where we gather in person to build meaningful connections
- A competitive salary that reflects your expertise, impact and experience
- Profit-sharing, so you can benefit directly from the value we build together
- A paid sabbatical program, designed for rest, renewal and fresh perspective
Ready to apply?
Apply to Fluxon