React Native Engineer in Amsterdam

About Sentry Software runs the world and the pace is faster than ever. Sentry helps developers fix errors and performance issues before users notice, so teams can spend less time firefighting and more time building. Trusted by 200,000+ organizations, Sentry is today’s application monitoring standard and our team is building its AI-native future. About the role Sentry's European Sales Engineering team is an established and growing team, expanding to keep pace with rising demand across the region. As a member of the team, you will be a crucial lever in helping our customers realize value from Sentry products. From providing technical demonstrations to advising customers on implementation best practices, you're all-in to make the customer wildly successful. Please note that this is a 12 month fixed-term contract. In this role you will You'll partner closely with Sales, Customer Success, and Product to guide customers from first technical touchpoint through to long-term adoption. Day to day, that looks like: Bring technical expertise to customer demos, trials, implementations, and tickets Develop best practices, educational offerings, and content around error and performance management, open-source, or the Sentry product (ex: "how-to" articles and/or videos on specific functionality of the product) Provide workshop-level interaction to customers in order to drive maturity of use and broader adoption Work across the organization with marketing, engineering, customer success, support and product teams to represent the customer's voice and drive improvements in the product Attend conferences on occasion, speaking with prospects that visit our booth You'll love this job if you Enjoy talking about technology and interfacing with engineers and engineering leaders Appreciate working on a variety of projects with customers from lots of different industries Love flexing your creative brain by developing resources and content from scratch (code samples, demos, sales-consumable co

This is Adyen Adyen provides payments, data, and financial products in a single solution for customers like Meta, Uber, H&M, and Microsoft - making us the financial technology platform of choice. At Adyen, everything we do is engineered for ambition. For our teams, we create an environment with opportunities for our people to succeed, backed by the culture and support to ensure they are enabled to truly own their careers. We are motivated individuals who tackle unique technical challenges at scale and solve them as a team. Together, we deliver innovative and ethical solutions that help businesses achieve their ambitions faster. You are the go-to market expert for driving revenue growth by leveraging our global presence and product offering. You coordinate internal teams to help our customers achieve success. We are looking for a born hunter, driven and energetic, who loves to grow the relationship with its partners. You have high energy, you are a stand-out individual, a go-getter with a can-do attitude who's not afraid to take charge and make things happen. In this role, you will contribute to reach Adyen goals and ambitions, in EMEA and globally, through the value of partnerships, orchestrating internal partnership resources to serve our business stakeholders and be the point of contact for everyone internally and externally. Your focus will be the SAP partnerships, today one of our fastest growing relationships. The EMEA Technology Partnership Team is responsible for the development and the success of the commercial relationship with Adyen’s most important partners in the Retail space. The members of the team are based in different offices of the company but they work closely together to increase the payment volume processed via partners and generate business opportunities for Adyen, they play a critical role in both expanding existing accounts and driving net new business. What you’ll do Be the catalyst of your assigned partners in EMEA and

About BlockTech BlockTech is an algorithmic trading firm operating at the frontier of global crypto derivatives and spot markets. We trade 24/7 across some of the fastest-moving, most data-rich venues in finance. Crypto remains one of the few markets where a researcher can still meaningfully move the edge: abundant data, novel microstructure, and the shortest possible loop between a research idea and live PnL. We're looking for an experienced Quantitative Researcher to take ownership of that edge and push it further. The role This is a senior, hands-on research seat on our trading floor. You'll own a research agenda end-to-end from hypothesis, dataset construction, feature engineering, model training, backtesting, live deployment, monitoring, and iteration. You'll be trusted to set its direction. You'll work shoulder-to-shoulder with fellow researchers, traders and analysts, shape how we price and trade, and help raise the bar for research across the floor, including mentoring less experienced researchers and influencing the tools and standards the team relies on. You will: Own price-prediction, signal, execution, and anomaly-detection models across crypto derivatives and spot markets from idea to live PnL using state-of-the-art ML Shape our research, backtesting, and trading infrastructure together with engineers, so good ideas reach production quickly and safely Own models in production: monitor live performance, diagnose decay, and iterate on what you ship Set research direction alongside traders, deciding which trades are worth making and why Raise the research bar by mentoring colleagues, reviewing work, and setting standards for rigour What we're looking for 4+ years of hands-on quantitative research and/or applied ML experience, with a track record of models you've taken into production trading live A strong academic foundation in a quantitative discipline (mathematics, physics, statistics, computer science, ML/AI, or similar) Fluency in Python and the modern

About BlockTech BlockTech is an algorithmic trading firm operating at the frontier of global crypto derivatives and spot markets. We trade 24/7 across some of the fastest-moving, most data-rich venues in finance. Crypto is one of the few markets where the gap between a good model and live PnL comes down to how fast and how reliably you can ship it. Abundant data, novel microstructure, and a short path to production mean the quality of our infrastructure directly moves the edge. We're looking for a Quantitative Developer to build that infrastructure and get our models into production. The role This is a hands-on engineering seat on our trading floor. You'll own the infrastructure that turns research models into production trading systems, working primarily in Python and Rust, the language our models and systems are written in. You'll build the frameworks and tooling that let quants ship their code to production and keep those systems running once they're live. You'll work shoulder-to-shoulder with researchers, traders, and fellow engineers, building the tooling, pipelines, and standards that let good ideas reach production quickly and safely, and helping raise the engineering bar across the floor. You will Build and own the infrastructure that takes models from research to production - data pipelines, backtesting, deployment, and monitoring. Turn research prototypes into robust, performant, production-grade code that runs reliably in live trading Work closely with quantitative researchers and traders to get new models live quickly and safely Own the systems you ship in production: monitor performance, diagnose issues, and keep latency and reliability high Improve the tools, standards, and pipelines the team relies on, raising the engineering bar across the floor What we're looking for 2+ years of software engineering experience, with a track record of shipping production-grade systems A strong academic foundation in a STEM discipline (computer science, mathematics, p