Fluxon

We’re #hiring a Senior QA Engineer (Manual) to define what world-class quality looks like at Fluxon. You don’t just find bugs — you uncover systemic gaps. You think in risk. You understand user experience as deeply as you understand client-server architecture. You know when to explore, when to go deep, and when to challenge assumptions. At Fluxon, you’ll: ✔️ Shape end-to-end QA strategy for complex web, mobile, and API-driven products ✔️ Act as the quality partner to product and engineering ✔️ Lead investigations into ambiguous issues and drive them to resolution ✔️ Raise the bar — for us and for our clients If you have a true “nose for bugs”, think in risk, and care deeply about user experience and technical depth, we’d love to connect. 📍 Remote within Poland or Portugal 🧪 5+ years testing complex systems | Experience leading QA solo on projects If you care about craftsmanship, clarity, and building products you’re proud to stand behind — let’s talk. 👀 Know someone exceptional? Tag them. 👋 Interested? Apply here: https://lnkd.in/dWtwcUSp #nowhiring #qaengineer #manualtesting #qualityassurance #remotework #polandjobs #portugaljobs #techcareers

We're #hiring! 🥳 Fluxon is looking for Senior Product Managers in the US and Canada. 👀 Are you ready to build impactful products? Work across diverse industries and company stages? Collaborate with a talented, fully-remote, and globally distributed team? If so, we can't wait to hear from you (or any of your friends)! Apply now! 🇺🇲U.S. candidates: https://lnkd.in/dz-9vd4Z 🇨🇦Canadian candidates: https://lnkd.in/dBcDJXZi #hiring #usa #canada #northamerica #productmanager #productmanagement #vancouver #ontario #dallas #sanfran #sanfrancisco #remotework #remoteteam

We’re #hiring! 🤩 Are you a Senior Technical Project Manager based in Poland or Portugal? We've been looking for you, come join our team! 👀🕵 What does being a Senior TPM at Fluxon look like? You’re a seasoned expert in managing projects end-to-end. You could work anywhere, but you choose us because you’re excited by a constant drive for innovation. Your superpower is organization and you thrive on collaborating across teams to help your team not only meet deadlines and exceed client expectations—but also have fun while doing it. If this sounds like you (or a friend of yours), we’d love to hear from you! For more information and to apply: 🇵🇱Poland: https://lnkd.in/dgKqqVeY 🇵🇹Portugal: https://lnkd.in/d6wYqrKW #nowhiring #hiring #tpm #seniortpm #technicalprojectmanager #portugal #poland #projectmanager #projectmanagement #portugalprojectmanager #polandprojectmanager #remotework #remoteteam

We’re #hiring! 🔥 Fluxon is looking for a Senior Product Designer based in Poland or Portugal.👀 We’re on a mission to find a versatile design generalist who excels at leading projects and crafting exceptional user experiences. Are you looking to join an amazing creative team? Do you wake up in the morning thinking about creating beautiful and impactful products? Thrive on taking on complex challenges? If you are based in Poland or Portugal and have said yes to these questions, we’d love to hear from you. Apply now! 🇵🇱Poland: https://lnkd.in/d29X6Qdh 🇵🇹Portugal: https://lnkd.in/dMDNX9i5 #nowhiring #hiring #productdesigners #productdesign #newjob #portugal #poland #portugalproductdesign #polandproductdesign #remotework #remoteteam

🚀 We’re #hiring! Fluxon is looking for Senior Software Engineers based in Poland and Portugal. 🌍 As a Senior Software Engineer at Fluxon, you’ll take ownership of building and shipping impactful products end-to-end. You’ll collaborate with teammates, Product, and Design to turn ideas into reality, engage directly with clients, and guide solutions from development all the way to launch. This is a hands-on role where you’ll work with modern technologies, perform code reviews, debug production issues, and mentor others in your areas of expertise - all while growing your own skill set. If you’re excited about shaping products and solving real-world problems, we’d love to hear from you! Apply now! 🇵🇱Poland: https://lnkd.in/dEMBamN3 🇵🇹Portugal: https://lnkd.in/d-CK9RvU #nowhiring #hiring #softwareengineer #seniorsoftwareengineer #engineerjobs #polandjobs #portugaljobs #remotework #remoteteam

We’re #hiring a Senior QA Engineer (Manual) to define what world-class quality looks like at Fluxon. You don’t just find bugs — you uncover systemic gaps. You think in risk. You understand user experience as deeply as you understand client-server architecture. You know when to explore, when to go deep, and when to challenge assumptions. At Fluxon, you’ll: ✔️ Shape end-to-end QA strategy for complex web, mobile, and API-driven products ✔️ Act as the quality partner to product and engineering ✔️ Lead investigations into ambiguous issues and drive them to resolution ✔️ Raise the bar — for us and for our clients If you have a true “nose for bugs”, think in risk, and care deeply about user experience and technical depth, we’d love to connect. 📍 Remote within Poland or Portugal 🧪 5+ years testing complex systems | Experience leading QA solo on projects If you care about craftsmanship, clarity, and building products you’re proud to stand behind — let’s talk. 👀 Know someone exceptional? Tag them. 👋 Interested? Apply here: https://lnkd.in/dWtwcUSp #nowhiring #qaengineer #manualtesting #qualityassurance #remotework #polandjobs #portugaljobs #techcareers

An engineer at CRED recently spent $50k on AI tokens in a month. The leadership team didn’t panic or flag it as a budget crisis. Instead, they asked a better question: Did the output justify the cost? It did. We recently hosted Jon Carr-Harris, CEO of CRED, to talk about how his team is optimizing for AI costs. This example from the conversation is a good illustration of the mindset shift he's pushing for. As Jon put it: “We should not just be asking ourselves, ‘How much are we spending on AI?’ Instead, we should be asking, ‘What are we getting for what we spend?’”

One of the most interesting questions in AI right now is where each request should run. Or how to balance “good enough” capability with cost. A few folks from the Fluxon team put together a small router. The goal was to send each request to the right-sized model instead of defaulting to the biggest one. The early results showed a clear win for coding tasks: the mid-tier models came within a point of the top model, at roughly a quarter of the cost. But the bigger cost lever wasn't our model choice. It was how we'd structured the calls around it. Our calls weren't structured to reuse the cache effectively. Because of this, most requests were being billed at the write price instead of the much lower read price for cached content. On the cached portion, that cost difference is close to 12x. We’d been focused on optimizing our models, while a bigger efficiency gain was hiding in our own system design. The clearest example we found: the same model can cost noticeably more depending on the harness around it. A tool built around the cache structure spends far fewer tokens than one that isn't, even when the underlying model is identical. Curious how other builders are thinking about this. How much of your AI cost turns out to be the model itself, versus everything around it? And what's your rule of thumb for when a request actually justifies the biggest model?