Staff/Senior AI Engineer, AI for Code

Joko

At Joko, we help consumers shop smarter. Our mission is to revolutionize shopping, empowering people to find what they need, make informed decisions, and save money. Founded in Paris, Joko is a tech company and certified B Corp with over 105 talents across Paris, Barcelona, and New York (and beyond). More than 6 million users already save money every day at 10,000+ merchants with Joko. From cashback and automatic coupons to price alerts and carbon tracking, we keep expanding our products to make shopping smarter. We’re now building an AI-powered shopping assistant to help users find the best products by price, quality, and environmental impact. Having reached profitability in our core market, we’re now scaling globally, with a strong focus on the US. It’s still day 1, come build the future of shopping with us! This position is remote-friendly (France and Spain). 📱 OUR ENGINEERING TEAM Our Engineering team excels at solving cutting-edge technical challenges with elegant solutions. With a strong focus on product innovation and design, they are shaping the future of the online shopping experience. Their ambition is to have a positive impact on the everyday lives of hundreds of millions of users around the world. Software Engineers in the Engineering team work hand-in-hand with the Product team, from exploration, design, and roadmap prioritization to implementation, and deployment in production. At Joko, we have firsthand experience that teams with engineers who possess a diverse range of skills, and where engineering and product collaborate closely, are able to deliver a truly delightful and innovative user experience. The Engineering team is currently growing fast to continuously innovate on all parts of our product and tech stack and to empower the revolution of the way people shop online. 🎯 WHAT YOU WILL DO As an AI Software Engineer, you will own the development and continuous improvement of Joko AI — our AI shopping agent that seamlessly guides users to the ideal product whatever their intent — helping them save significant time by taking into account all relevant considerations (price, quality, reviews, environmental impact), across every product sold by any e-commerce merchant in the world. Working closely with Alex, our CTO, and alongside a small team of world-class engineers, sitting at the intersection of applied research and production. * Agent architecture: You will own the architecture of our agentic system — ensuring it constantly evolves, incorporates the latest advancements in the field, challenges existing assumptions, tests bold ideas, and pushes the boundaries of what our AI assistant can do. * Evaluation & monitoring: You will design and run robust evaluation frameworks to measure Joko AI's performance, catch regressions, and build confidence before shipping to production. * Capabilities & integrations: You will constantly expand the set of tools and capabilities that Joko AI can leverage — web search, vector search, ever-smarter catalog lookups — making the agent more resourceful, faster, and more reliable at scale. * Catalog & data at scale: Great recommendations start with great data. Joko AI is powered by a product catalog of hundreds of millions of entries, continuously updated. You will tackle the massive challenges of ingesting, standardizing, and enriching this data at scale, where AI itself plays a key role. * Personalization: Joko has access to uniquely rich data — bank transactions and browsing behavior through the browser extensions — giving us unparalleled insight into user preferences and shopping patterns. You will leverage these signals to deeply understand user intent and build a truly personalized experience — making Joko AI feel like it genuinely knows what you're looking for. * Experimentation & prototyping: You will constantly push Joko AI forward by identifying new challenges and building new features for the agent. You will prototype fast, put early versions in users' hands, and iterate based on real feedback * Staying ahead: You will stay on top of the latest models, agentic frameworks, and research papers, and translate what's emerging into concrete improvements for Joko AI. * Fine-tuning & optimization: You will fine-tune models to improve quality, reduce latency, and cut costs — always with a production-grade mindset. * Runtime & scalability: You will iterate on the backbone and infrastructure Joko AI runs on, ensuring it handles hundreds of thousands of daily users with zero downtime and minimal latency. * Product collaboration: We are inventing an entirely new shopping experience with Joko AI — and much of what the ideal UX looks like is still to be defined. You will work hand-in-hand with the Product team, exploring bold design directions, imagining what the future of AI-assisted shopping can be, and turning that vision into reality from early concept to full rollout. 👀 WHO WE'RE LOOKING FOR * Experience: You have 5+ years of software engineering experience, including time building and shipping production systems. You've operated at a senior or staff level and you're used to owning ambitious projects from design to production. * Track record: You've ideally built production AI systems that real users rely on, and you care deeply about code quality, separation of concerns, and testing. * Technical skills: You are deeply familiar with agentic frameworks (LangChain, LangGraph, or equivalents), LLM observability tools (LangFuse or equivalents), LLM APIs, and evaluation tooling for AI systems. An AI/ML background or degree is a strong plus, but not a blocker. * Builder's mindset: You love building from scratch. You are not precious about your ideas — you ship, test, learn, and iterate fast. * Full-stack spirit: You are comfortable going from AI logic to infrastructure to frontend prototyping when needed. You don't stop at your lane. * Fast learner: The AI landscape moves fast. You thrive in it. You follow the research, experiment with new models and tools, and you are always slightly ahead of the curve. * Problem solver: You approach hard technical problems methodically. Latency, cost, hallucinations, long-term memory — you know these challenges and you enjoy tackling them. * Team player: You work closely with Product, iterate with users, and communicate clearly about what's working and what isn't. * Drive & ownership: You take full ownership of your scope. You don't wait to be asked — you spot issues, propose solutions, and ship. * Language: You are fluent in English (written and spoken). * Mindset: You have an entrepreneurial mindset, you like challenges, you welcome feedback and you love constantly learning and getting better. 💎 OUR PERKS (Some of the benefits listed below are available to full-time positions only) At Joko, we believe that flexibility and trust are essential. Our work environment reflects this through: * Flexible remote : If you live in Paris, you can choose to work from our office or from home with no constraints. If you live elsewhere, we can provide access to a coworking space and a coworking budget. * Work from anywhere : Want to spend a month in Italy while working? You can work from most countries in the world for up to 3 months per year. On top of that, we offer plenty of perks: * 💸 Top-market compensation * 📈 Equity for everyone with the chance to own a piece of what you build * 🤖 Half-day each week dedicated to leveling up with AI by exploring new tools, iterating hard, and sharpening your skills * 🌴 Yearly offsite in amazing locations and budget for team-building events & monthly in-person gatherings * 💪 Contribution to your ClassPass subscription * 🍼 8-week leave paid 100% for the second parent * …and much more, check the full list here! 🤝 OUR HIRING PROCESS 1. Intro call: Quick screening with the Hiring Manager or the Talent team. 2. Step 1 – Team interview (45 min): Conversation with two Joko team members (could include the Hiring Manager, people from the team you’d join, or colleagues from other teams). 3. Step 2 – Role-specific assessments * For non-engineering roles: A take-home case study followed by a 45-min interview. We assess both your output and how you think in real time. The exercise will be relevant to your role (e.g. analysis, strategy, or process design). * For engineering roles: A 90-min live technical interview on CoderPad covering code understanding, review, system design, and product thinking (with AI serving as a collaboration tool). 4. Step 3 – Leadership interview (45 min): Conversation with a SteerCo member and a Founder. 5. References: Up to 3 calls with former colleagues or managers. ☕ You may also be invited for coffee with team members to get a feel for our culture.

Tibber

We're at a pivotal moment for both Tibber and the planet. When joining Tibber, you won’t just help scale a forward-thinking tech company – you’ll contribute to a real shift in how people consume electricity. With millions of smart devices connected to the Tibber platform (like electric vehicles and smart thermostats), we have one of the most unique energy trading portfolios on the market. We’re looking for a Senior Ai Platform Engineer to join us in making the energy transition happen – maybe that’s you? ---------------------------------------------------------------------------------------------------------------------------------- Job Mission 🚀 As a Senior AI Platform Engineer, you’ll join the Agentic Enablement side of our Platform team and help build the technical foundation for how Tibber adopts and scales agentic systems across engineering. Your focus will be on the architecture, workflows and trust infrastructure that allow AI agents to safely support software development - from writing and testing code to reviewing changes, triggering workflows and knowing when to involve a human. This is a platform role, which means the engineers building agents at Tibber are your users. Your success is measured by how quickly and confidently they can move from idea to production without needing you in the room. This role is for someone who enjoys building reliable systems, thinking deeply about architecture and helping teams adopt new ways of working with confidence. ---------------------------------------------------------------------------------------------------------------------------------- What you'll do ✅ * Contribute to the design and architecture of Tibber’s agentic development platform, including orchestration layers, platform integrations, feedback loops and escalation paths, and the developer-facing CLI and onboarding experience. * Take ownership of key platform components, from design and implementation to reliability and continuous improvement. * Help define workflows, quality standards and ownership models for how agents can write, test, review and support code. * Help shape safe and reliable agentic workflows, including human-in-the-loop boundaries. * Build trust infrastructure that makes agentic systems observable, secure, reversible and reliable in production. * Work closely with Staff Engineers and the wider Platform team to build on Tibber’s AWS, Kubernetes and infrastructure foundations. * Bring people along through clear technical communication, thoughtful collaboration and strong engineering judgment. ---------------------------------------------------------------------------------------------------------------------------------- What we're looking for⚡ You are driven by impact and know how to turn strategy into execution. You're used to fast-paced environments and thrive when given clear goals and high accountability. We believe you'll thrive here if you: * Bring hands-on production experience building and running reliable agentic software systems. * Treat evaluation as a first-class engineering concern, you’ve built eval pipelines for non-deterministic systems, whether LLM-as-judge, regression suites, or golden datasets, and know that measuring agent quality in production is an ongoing discipline, not a launch checklist. * Bring hands-on production experience building and running reliable agentic software systems. * Have strong infrastructure knowledge across Kubernetes, Terraform, Infrastructure as Code, and platform networking. * Demonstrate strong software engineering depth in TypeScript, with the ability to own and operate services end-to-end. * Enjoys to communicate technical directions and collaborate with engineering teams to enable adoption, and turn platform capabilities into real impact. * Apply a strong security mindset to agent permissions, least-privilege designs, and blast radius awareness. * Have working knowledge of Model Context Protocol (MCP), evaluation frameworks, or cloud capabilities like AWS Bedrock. ---------------------------------------------------------------------------------------------------------------------------------- 💆🏻‍♀️💆🏽‍♂️The Tibber Mindset Tibber exists to drive energy independence - away from fossil dependency. Our tech helps hundreds of thousands of households shift their electricity consumption to more sustainable and affordable hours - from electric vehicles to smart thermostats, all connected to the Tibber platform. We strengthen the resilience of the grid. Not in theory. In everyday life. We win, fail, and grow together, staying curious and pushing for better every day. AI is shaping how we work - and we're on a journey to make it central to everything we do. The further we go, the more our Tibberinos matter - and yes, that's what we call ourselves! Started by two founders in 2016. Now 300+ Tibberinos across Stockholm, Oslo, Berlin, Amsterdam, and Førde. And we're still just getting started. You're welcome at Tibber for who you are. We hire for what you can do and how you think - not your background or where you've been. Diverse teams build better products, and we mean that.

Tacto

THE TEAM YOU'LL JOIN - DESIGNING THE INTERFACE BETWEEN HUMANS AND AI AGENTS IN PROCUREMENT Tacto builds AI-powered software for strategic procurement teams in manufacturing. Our customers manage millions in spend, negotiate with hundreds of suppliers, and make decisions that directly affect their company's bottom line. We're entering a phase where the product fundamentally changes shape. Instead of dashboards users click through, we're building agentic capabilities that take larger units of work off our users' shoulders - monitoring markets, preparing negotiations, flagging risks, executing workflows end-to-end. The agent handles the work. Humans make the decisions and review the results. How that actually shows up in the app - especially for non-technical procurement professionals who are the majority of our users - is one of the hardest design challenges we face. That's where you come in. You'll join a small design team and you'll work alongside product managers, engineers, and domain experts who understand procurement deeply. Your job is to make AI capabilities feel natural, trustworthy, and genuinely useful to people who've never thought of themselves as "tech users." WHY THIS ROLE MATTERS The shift from "tools you operate" to "agents that work for you" is happening across the industry - but most teams are still figuring out what that means in practice. For our customers, the stakes are high: a misunderstood recommendation or a confusing workflow doesn't just frustrate users, it costs real money. If we get this right, procurement teams will trust Tacto to handle the heavy lifting while they focus on the decisions that matter. If we get it wrong, the most powerful AI capabilities in the world won't get adopted. Design is the difference. 💪 YOUR IMPACT In this role, you will: * Shape how agentic capabilities surface in the product - from "the agent is working on this" to "here's what it found, here's what you should decide." * Design flows where AI and human judgment work together, not in parallel. Think less "copilot sidebar" and more "the product just handles it and comes back when it needs you." * Create short-horizon vision work (3-6 months out) that points the team in a direction - not as polished decks, but as prototypes and tangible artifacts the team can react to and build toward. * Raise the bar for craft and coherence across the product, especially as engineering velocity increases 10x and more features ship faster. * Work directly in code for last-mile polish - checking out PRs, tweaking interactions, making things feel right before they ship. WHO YOU ARE We're looking for a block-shaped designer. Not a T-shape with one deep skill and broad awareness, but someone who is genuinely strong - 80th percentile good - across multiple disciplines: visual design, interaction design, product thinking, and prototyping in code. This matters because the role stretches. You'll think like a PM when shaping what to build. You'll think like an engineer when prototyping and polishing in code. And you'll think like a designer when making it all feel coherent, clear, and worth trusting. You'll be a great fit if you: * Are a senior designer with a strong portfolio of shipped product work - ideally in B2B SaaS, complex workflows, or data-heavy products. * Have real opinions about how AI should show up in products - not just "add a chat interface," but genuinely thoughtful about trust, transparency, and when AI should get out of the way. * Prototype in code as part of your regular workflow. Figma is still valuable, but you move past it when a real prototype communicates the idea better. * Think in systems, not just screens. You care about how 20 features feel together, not just how one flow looks in isolation. * Can operate with ambiguity. The problems we're solving don't have established patterns yet - you'll have to invent some of them. * Organize your day using AI tools. You use Claude, ChatGPT, Cursor, or similar as core leverage in your work - for research, ideation, prototyping, creating developer handover artifacts, and more. Bonus points if you: * Have designed for non-technical users in complex B2B domains, * Have experience with agentic or autonomous AI features (not just chat), * Have strong opinions about what makes AI output trustworthy and actionable. OUR BACKGROUND Tacto is building the intelligence layer that connects AI to the physical world of manufacturing, starting with procurement. AI is transforming every industry, but it stops at the factory gate. The knowledge that holds manufacturing together - part costs, suppliers, materials - is scattered across systems and people. Over 50% of a product's cost originates from suppliers, making procurement the single largest cost lever in manufacturing and the missing connection between the digital and the physical world. Yet it still runs on Excel and legacy systems. We're changing that with our Procurement Intelligence Platform, trusted by hundreds of companies running billions of Euros of material. Based in Munich, we are 100+ passionate builders who are in-office, with high expectations, fast growth, and a lot of fun. We are supported by >€50m from Sequoia, Index, and Europe's leading tech entrepreneurs and industry veterans. WHY IT MATTERS Manufacturing forms Europe's economic backbone, driving a fourth of Europe's GDP and providing over 30% of jobs. These hidden champions and global market leaders manufacture the physical world around us, from the machines that build our cities to the medical devices that save lives. But the world is changing. The US dominates the digital world of bits. China is scaling the world of atoms, manufacturing at unprecedented speed and scale. Geopolitics are more uncertain than ever. Europe's strength lies in its deep industrial knowledge through generations of engineering. Manufacturing worldwide runs on European machines and software. But that heritage is only an advantage if we leverage it in the age of AI. Tacto builds the AI that connects Atoms and Bits, empowering our Industrial Base to Stay Stronger and building a lighthouse for European tech. WHAT WE OFFER The people at Tacto are passionate about building the organization, growing themselves, and our product while having fun and being real. We have high expectations, great talent density, and a culture where your ambition, performance, and agency are what count - not where you come from or how big your ego is. You'll grow at the forefront of AI, have real ownership and impact, and be surrounded by the best people in their field who challenge you and make you better every day. That is demanding and rewarding, but that's where we thrive. Besides that you have: * Money: Competitive salary & equity in the company with real upside, so you are invested in our success * Workplace: A vibrant in-office culture (> 4 days/week) in a beautiful office in central Munich * Development: A development budget and regular exposure to exceptional people, e.g., Lunch & Learns, peer mentoring, external speakers * Time off: 26 + 4 vacation days per year (4 fixed “company rest days”) as well as regular off-sites and team events * Health: Wellpass membership, of course, a fruit basket (!), and access to Jobrad, for your health * Family & Social Security: Voluntary pension contribution, voluntary KITA subsidy for your children Tacto is an equal opportunity employer. We are committed to equal employment opportunity regardless of race, religion, sexual orientation, age, marital status, disability, or gender identity. Please do not submit personal data revealing racial or ethnic origin, political opinions, religious or philosophical beliefs, trade union membership, data concerning your health, or data concerning your sexual orientation.