Senior AI Engineer at 13 Coins Holdings

Prague, Prague, Czechia -

Full Time

Start Date

Immediate

Expiry Date

12 Aug, 26

Salary

0.0

Posted On

14 May, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

TypeScript, AWS, Agentic AI, LangChain, LangGraph, Mastra, RAG, Vector Databases, System Design, LLM Deployment, Distributed Systems, Backend Engineering, Model Evaluation, Financial Reasoning, Prompt Engineering, Cloud Computing

Industry

Description

Your mission About StockStory Index.dev is partnering with StockStory (CNBC / VERSANT) to hire a Senior AI Engineer in Prague. VERSANT is an independent, publicly traded company that brings together powerhouse brands such as CNBC, MS NOW (formerly MSNBC), USA Network, Oxygen, E!, SYFY, and Golf Channel along with dynamic digital and direct-to-consumer brands such as Fandango, Rotten Tomatoes, GolfNow, GolfPass, and SportsEngine. StockStory, now part of CNBC under VERSANT, is building the next generation of AI-powered equity research for individual investors. This is a chance to build products that can shape how millions of consumers understand markets and make investing decisions. We offer the best parts of a startup environment — small team, high ownership, fast execution, and room to experiment — with the backing and stability of VERSANT, an independent publicly traded media company. As an AI engineer, you will work on both an existing AI product with real user impact and greenfield projects with significant room for exploration. The work spans cutting-edge LLMs, large-scale data systems, financial reasoning, and research tooling, with opportunities to apply ideas from functional programming and graph-based systems where they create real advantage. You will be joining a team of exceptional engineers, analysts, and investors working at the intersection of AI and public markets. A particularly rare part of this role is the level of direct access to experienced market professionals, including former hedge fund managers and top-tier analysts, whose insights can directly inform how you think about modeling, signals, and product design. The Role We're looking for a highly capable Senior AI Engineer to join our team to build the next generation of AI-powered equity research. This role is for engineers who enjoy turning LLM and agentic AI capabilities into reliable product systems embedded in real-world workflows. It is especially well suited to people who want to work hands-on across architecture, implementation, and operations while helping define how AI capabilities get integrated into products used by individual investors. You will design, build, and operate core components of our AI platform: distributed agentic workflows, retrieval and reranking systems, model integrations, and the infrastructure required to make these systems reliable, observable, and scalable in production. This role sits within a small and growing, high-caliber team where individuals are expected to operate with a high degree of ownership and autonomy, contributing directly to core product, engineering, and AI systems decisions while working closely with peers, product stakeholders, and senior leadership in a highly collaborative, low-bureaucracy environment with direct access to decision-makers. A genuine interest in investing, public markets, and fundamental business analysis is expected. Your profile What We're Looking For Bachelor's degree in Computer Science or equivalent practical experience 5+ years of experience designing, building, and maintaining software systems Strong backend expertise in at least one strongly typed language, preferably TypeScript Solid understanding of cloud computing primitives, especially AWS Strong understanding of agentic AI concepts such as tool use, function calling, state machines or graphs, retrieval and reranking, structured outputs, memory, guardrails, and evaluation Experience developing and deploying agentic workflows using frameworks such as LangChain, Mastra, or LangGraph Experience contributing to system design and technical decision-making What You'll Do Build end-to-end distributed agentic AI solutions that are reliable and scalable Own complex features or subsystems from design through deployment and operation Collaborate cross-functionally to integrate AI capabilities into products and data pipelines Contribute to architectural decisions and technical standards for AI systems Maintain observability and operational health, including cost metrics, quality monitoring, drift detection, alignment, alerting, and incident response Support the team's overall technical growth Identify and mitigate risks in AI systems, including performance regressions, bias, and operational issues Use and improve model lifecycle management, monitoring, and evaluation frameworks Desirable Skills & Experience Experience shipping and operating multiple GenAI or LLM-powered systems in production Hands-on experience debugging scaled LLM systems and participating in incident response Experience building RAG pipelines using embeddings and vector databases Familiarity with fine-tuning or adapting models for specific tasks Experience implementing evaluation pipelines, including human-in-the-loop workflows Experience building or maintaining evaluation suites for agentic systems in production Location Hybrid — 4 days on-site in Prague, Czech Republic / 1 day remote. Why us? About us Index is a UK-based company providing end-to-end remote-work services, powered by our digital platform. We help leading companies like GoEuro, Vodafone, Venly, YC startups, and 100 more companies to scale their engineering team by finding and managing high-performing tech talent. The company was founded 2019 and headquartered in London. We unite top engineering talent from around the world and connect them with innovative companies seeking high-performing teams. It was co-founded by an Oxford alumnus and tech executive with a track record of building successful global teams and scaling output rapidly. Why Join Index.dev We are officially recognized by the Financial Times as one of Europe’s fastest-growing companies: in 2024 we ranked 29th overall and 6th in IT & Software among the FT 1000. We scale faster than market average — enabling us to offer frequent, meaningful opportunities for those who perform. From Talent Marketplace to Full-Service Software Powerhouse In October 2025 we completed the acquisition of Codemotion — a seasoned, U.S.-based custom software development company with a 60+ strong engineering team, decades of enterprise-project experience, and clients such as NASA, Neom, and MongoDB. This strategic move transforms us from a talent-matching platform into a full-fledged software delivery partner: end-to-end solutions, from MVP to production, including CTO-level leadership, project management, design, QA, and scalable engineering teams. As a result — along with helping hire developers, we’re delivering entire products and complex systems. We now serve clients in 180+ countries, offering broad timezone overlap, flexible staffing models, and a diversity of technical skills and cultural backgrounds. Our growth trajectory ensures that high-performers don’t just onboard — they accelerate. With access to enterprise-level clients, cross-functional teams, and varied domains (FinTech, Blockchain, Healthcare, AI), talent can grow in ways rarely possible in traditional setups. Our Vision & Mission: Where We’re Going Next We are growing fast and have the vision of building the leading software development company in the world. We believe that remote-first, globally distributed engineering teams are the future. Our goals include: 1. Expand into a full end-to-end software delivery partner — delivering complete engineering solutions, from CTO-level leadership to full product development. 2. Attract and serve enterprise-level clients — by strengthening delivery quality, project reliability, and compliance to handle complex, high-stakes projects. 3. Deliver speed, quality, and flexibility at scale — ensuring clients get vetted, ready-to-interview talent and high-performing teams with exceptional turnaround time. 4. Sustain rapid, high-quality growth — continuing our momentum as one of Europe’s fastest-growing tech companies while preserving performance, culture, and delivery excellence. Giving back is part of our DNA. We donate around 10% of the revenue to support vulnerable groups — including children, women, refugees — and invests in education programs for young students and future IT professionals. If you’re motivated by scale, impact, complex projects, and global collaboration, Index.dev is the kind of place where your efforts will be amplified. Here are some reviews from our teammates on -> Glassdoor. You would make an ideal candidate for our company if you are willing to commit to the following: Above Average Principles: Integrity. Respect. Show empathy and respect to others and their feelings; Show others that you care. Extra-Mile. Excellence and work ethics. Ask the question: “What else can I do?”; Reject average, good to pass by. Move Quickly and Be Resourcefulness. Do more with less. Ongoing Learner. Ask the questions: “What coaching do you have for me?” and “What can I do better?“; What is the learning here?. Team Player. Talent wins games, but teamwork and intelligence win championships. Extra Smile. We look to the positive side in every situation. We love what we do every day. Ask the question: “What is good in this?”.

Responsibilities

Design and operate core components of an AI platform, including distributed agentic workflows and retrieval systems for equity research. Collaborate cross-functionally to integrate AI capabilities into products while maintaining system observability and operational health.