Hire the best Forex Traders in Spain

Check out Forex Traders in Spain with the skills you need for your next job.
  • $50 hourly
    Over 20 years experience as a Trader/Broker in the financial markets, particularly in Bonds, FX, Derivatives and Futures, extensive knowledge of Stock Markets. In depth knowledge of macro factors and geopolitical narratives driving financial markets. I have been creating content in the finance space, investing, trading, and retirement accounts, as well as forex and stocks specifically. I have been published in various sites including seekingalpha.com. I can also bring SEO best practice to increase your organic traffic. Straight forward writing style, easy to read and perfect grammar. Obtained CAIA Charter in April 2015 which has given me great insight to the world of alternative investments and portfolio management. My rate for general financial topics which require little research is $0.10 per word for text only. Articles which need in-depth research are priced per word according to depth of project.
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Spanish to English Translation
    English to Spanish Translation
    English to Italian Translation
    Italian to English Translation
    Financial Translation
    Content Writing
    Technical Analysis
    Forex Trading
    Portfolio Performance Modeling
    Investment Strategy
    Financial Writing
    Article Writing
    Copywriting
    SEO Writing
    Proofreading
  • $95 hourly
    Trading Automation this is what I do since 2012. I like what I do and therefore you will get strong and effective product which exceed your expectations. My favorite platforms: NinjaTrader 7/8 MetaTrader 4/5 cTrader (we can also discuss your interesting trading ideas for any other platforms) Attention to all your requirements, fast work, logically effective and high performance code, all sources and support after our project will done guaranteed. Expert Advisors (EA), Indicators, Scripts, User and Graphical Interfaces for MetaTrader. Strategies, Indicators, AddOns, Bars Types, Market Analyzer Columns and more for NinjaTrader. Bots and Indicators for cTrader. Copiers and bridges, converting codes between platforms. Together we do your trading profitable. And of course I'll keep private all your ideas (and sign NDA if you need)
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    cTrader
    MQL 4
    Forex Trading
    MQL 5
    Automation
    Scripting
    MetaTrader 4
    NinjaTrader
    C#
  • $17 hourly
    Experienced virtual assistant specialized in customer support, transcription, translation and executive VA jobs. Supported a number of E-commerce businesses in increasing sales, lead generation and social media management. With eight-year experience in Customer Service, quality and proficiency had played a great role in fulfilling customer satisfaction. I have been a consistent top performer in Customer Service gaining awards and recognition from the firms I've worked with.
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    API Testing
    Shopify Apps
    Cryptocurrency
    Data Entry
    Customer Service
    Sales
    English to Filipino Translation
    Filipino to English Translation
    Fraud Mitigation
    Forex Trading
    Stenography
    General Transcription
    Social Media Management
    Zendesk
  • $48 hourly
    I am a software engineer specializing in the Forex Market. I have in excess of 12 years full time experience. I'm able to code any type of Expert Advisors, Custom Indicators and Scripts for MetaTrader 4 and 5 platforms. As part of my services I offer: Excellent Customer Support - Extremely Competitive Pricing - Reliable Coding - Fast Turnaround
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Cryptocurrency
    NinjaTrader
    Scripting
    MQL 5
    MetaTrader 5
    MetaTrader 4
    MQL 4
    Forex Trading
    Technical Analysis
  • $63 hourly
    I embarked on my professional journey as an engineer at a nuclear power plant, eventually advancing to the role of senior reactor operator engineer. Over the years, I have garnered extensive experience as a company director. Starting in 2004, I delved into financial market trading, and from 2007 onwards, I have dedicated time to programming in NinjaScript for the NinjaTrader platform.
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Ethereum
    Scripting
    Bitcoin
    NinjaTrader
    Bot Development
    MetaTrader 4
    Forex Trading
    Technical Analysis
    Strategy
    C++
    C#
    Algorithm Development
  • $85 hourly
    There are 4 main services I provide: 1. Prop Account Management: For those people who are not able to overcome the challenges of Prop Trading Firms. Or for those who already have an account but prefer a professional trader to trade on the account to get more profit. 2. Intraday and swing trader, both for individuals and companies. Managing your trading accounts with my strategies. 3. Forex Trading Expert: Mentoring and Coaching for people who want to get started in Forex and want a Professional Trader to help them on their way. To learn how to use Metatrader 4, or Metatrader 5, as in the use of indicators or strategy creation. Analyze your accounts or investment strategies 4. Writing financial and educational articles for blog or web pages ***The rate can be negotiated and also varies depending on the project, and there may be a fixed price.*** -_-_-_-_-_-_-_-_-_-_-_ I am an Economist, Professional Trader and certified financial advisor under European MiFID II regulations. Additionally I have training in financial markets and portfolio management. I have over 9 years of experience investing with my own capital, and later I start working as a professional trader for several Proprietary Trading Firms (FTMO, My Forex Founds, Traders Central, Fidelcrest, AudaCity Capital Management, FundYourFX) , currently I am specialized in Forex and Gold. In addition to being a trader, I am the financial coordinator of a company dedicated to the investment and active management of physical gold and other precious metals, silver, osmium, palladium, platinum, rhodium and other precious metals. I can attach some of my track history, so you can check my trading strategy and my risk profile. I can also attach certificates from a proprietary trading firm that endorse me as a successful trader with a consistent strategy and good risk management. I have experience writing financial and educational articles for blog or websites, I started writing articles on a financial blog in 2018
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Risk Management
    Cryptocurrency
    Teaching
    Technical Analysis
    MetaTrader 5
    MetaTrader 4
    Financial Consulting
    Account Management
    Economics
    Portfolio Management
    Financial Writing
    Forex Trading
    Investment Strategy
    Financial Analysis
    Microsoft Excel
  • $50 hourly
    Three years of development of profitable solutions for automatical trading and strategies. PineScript for Tradingview to create strategies and indicators, Python for bots. Creating fully automated trading strategies based on own trading experience 10 years experience in call-center software development, creating any solutions based on Asterisk and Web-based interfaces, integration with any other systems like CRMs, information systems, billings, etc. Call automation with using of agents and without. Hundreeds of cases realized for biggest companies of Ukraine and Germany
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Automation
    Bot Development
    Forex Trading
    Call Center Software
    Business Development
    VoIP Software
    Trading Automation
    Evolve IP Call Center
    Cryptocurrency
    Trading Strategy
    Python
    API
    MySQL
  • $35 hourly
    I am a trader and portfolio manager in the financial markets. Check out my ideas and all the trading concepts I could share with you, they work for every time frame and, in all humility, they are exceptional. The ideas I work with are found in the pdf of my profile, which is the seed of an investment fund with great aspirations and a humble beginning. The core of its philosophy is to peacefully flow with the trend -without arguing with the market, which we admire as an expression of liberty. It is written with the reader in mind. With the intention that those interested in its ideas may, first, understand certain unusual concepts about what we do and, then, benefit from something that, in all humility, seems good for everyone. What sets me apart is who I am; my ability to discern truth from falsehood, and my integrity and honesty. All I do is with the highest good of others in mind. My knowledge in trading is put out so that others who want to walk along with me by investing their trust and capital benefit from it. I work to earn your trust so that this trading idea is materialized. What I have done: - Successfully analyzed markets trends and their turning points. Designed, implemented and traded short-term trades for Forex and crypto assets (also works for stocks and futures). Resulted in a 3.5 reward to drawdown ratio (see pdf). More than a 50% return in 4 months. - The systems are based on the mathematical assumption that the real price is a linear regression of it and the positive expectancy (R-Multiples) of low risk continuation patterns of such mathematical linear regression. - Performed an in-depth risk management study implementing different position sizing algorithms, using nonparametric statistics and Monte Carlo simulations, limiting the volatility of the portfolio. - Developed a business contingency plan, in which every course of action is systematized. - Backtested and optimized systems in an array of platforms (MT, TradeStation, AmiBroker, Interactive Brokers, TradingView), using different programming languages (C, AFL, EasyLanguage, MQL, VBA). The strategies cannot be implemented in MT, therefore, prop firms are discarded. - Outlined a two-stage Monte Carlo simulation application using a random function generator, programmed on Microsoft Excel coding language (VBA), so that a position sizing algorithm can be chosen in order to meet trading objectives. The purpose of trading is clear: to generate returns. With the marked path it is easier to achieve it, i.e.: a system with positive expectancy in terms of R and a position sizing function that allows us to achieve our money objectives set. The key lies not so much on the systems, but simply on going with the trend and doing the right thing. It is not a question of whether the systems will work or not; there will always be trends, it is the nature of the market itself. It is not the pattern that causes a price to vary (trend), nor there is a “cause” of the change. For example, “why is the price of oil rising? “Demand increases” is the answer usually given. Which only has heuristic value. It is a tautology, since what is defined is evidently contained in the definition. That “increased demand” does not magically “cause” the rise in the price of oil, but rather is one necessary condition in the process of raising prices. The “cause” of everything is always the same: the totality of everything that exists now or has existed throughout history. This is relevant to financial markets in that the price of an asset is an expression of context, it is not “caused” by anything, but by an infinite number of conditions. Everything is interconnected in the world of prices, so that the slightest change in one item is transmitted along the chain to millions of other prices. Thus, all prices of all products, currencies, services, goods, wages or commodities... reflect a harmonious mosaic in which everything is in accordance with everything else. This understanding allows the trader to free themselves from intellectual positions that interfere with his perception and the essence of his work. For him, no price is "expensive" nor any asset is "oversold." Each price is what it is, without adjectives. This lack of opinion is not naivety, it allows the trader to see what is real, flow unhindered with the trend and focus on the essence of trading: risk. Success will depend largely on the degree of trust between both parts. The relationship between trader and investor can be easy with the right connection. For, in this complex mosaic of successful trading, the investor is a key part. More importantly, the setting and subsequent achievement of the objectives is consequence given by the relationship established between the trader and the capitalist. That is my purpose: to contribute to the development of a relationship based on trust. Fortunately, money reflects the potential of what we want to create. Which includes creating money to create even more things.
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    TradeStation
    Financial Modeling
    Financial Software
    Market Research
    Stock Market
    Crypto Asset
    AmiBroker
    Portfolio Management
    Financial Trading
    Online Financial Trading
    Cryptocurrency Trading
    Derivatives Trading
    Trading Strategy
    TradingView
    Forex Trading
  • $49 hourly
    My name is Mircea, and I am an MBA in International Business graduate, Magna Cum Laude, from American University. Besides perfect English, I live in Spain and know basic German too. I love financial markets and have been trading for a living for more than a decade. During that time, I was involved in all things trading – live trading, building trading academies for various financial websites, running one-on-one private mentoring programs, etc. My specialty is the currency market. I believe the currency market moves ahead of all others. Also, by watching currencies, one has an eye on all markets (stocks, commodities, etc.). I know WordPress, SEO, Digital Marketing, Email Marketing, my way in SEO writing and keyword research, meta titles, etc. I wrote and still write for various financial publications on topics related to financial markets—technical and fundamental analysis, economic reports, central banking, monetary policy, and so on. Nowadays, writing and researching tasks for the financial community are essential to my income, complementing my trading activities. I am serious, reliable, good with deadlines, and only deliver 100% original content. Since January 2023, I have managed Blue Eight Capital, an economic consulting company focusing on developed markets. It provides economic analyses and reports on major economies to identify short-, medium-, and long-term trends in financial markets. Looking forward to hearing from you, Mircea.
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Digital Marketing
    Forex Trading
    Marketing Strategy
    Technical Analysis
    International Business
    Online Writing
    Marketing Management
    Search Engine Optimization
    Financial Writing
    Business Writing
  • $77 hourly
    Puedo programar cualquier idea de trading objetiva en los siguientes lenguajes de programación : mql de metatrader, ninjascript de Ninjatrader o python para culaquier otra idea. Utilizando estos lenguajes he desarrollado algoritmos durante mucho tiempo, y cuento con más de 4 años en el trading, creando más de 30 algoritmos para uso propio. En este proceso he mejorado mis habilidades de creación de sistemas, resolviendo todo tipo de problemas que podrían aparecer mientras creaba el código, mejorando mi conocimiento, y aprendiendo de todo lo posible. Si necesitas a alguien con experiencia para crear tu algoritmo, con la flexibilidad necesaria, estaré dispuesto a crear y pulir tu idea. --------------------------- I can program any trading idea in the following programming languages: mql from metatrader, ninjascript from Ninjatrader or python for any other idea. Using these languages I have been developing algorithms for a long time, and I have more than 4 years in trading, creating more than 30 algorithms for my own use. In this process I have improved my system creation skills, solving all kinds of problems that could appear while creating the code, improving my knowledge, and learning from everything possible. If you need someone with experience to create your algorithm, with the necessary flexibility, I will be willing to create and polish your idea.
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Castilian Spanish
    C++
    MetaTrader 4
    Investment Banking
    MQL 4
    MQL 5
    Copywriting
    Data Entry
    Algorithm Development
    Python
    Trading Strategy
    Forex Trading
    Trading Automation
  • $28 hourly
    Juan Antonio Jiménez Labrador 💼 Especialista en Trading | 💡 Experto en Publicidad ¡Hola! Mi nombre es Juan Antonio, y soy un apasionado del aprender 💹 Trading y Gestión de Cuentas: Como trader profesional, gestiono más de $300,000 en activos con la reconocida empresa FTMO 📚 Academia de Trading: Además de mi trabajo en la gestión de cuentas, también emprendí mi propia academia de trading. A través de mis conocimientos y experiencia, ofrezco capacitación y mentoría a aquellos que desean comenzar o mejorar sus habilidades dentro del trading. 🔎Publicidad y Redes Sociales: Como apasionado del marketing y de la psicología de ventas, me encargo personalmente de hacerte un plan de marketing para tu negocio, ya que antes de lanzarme al mundo online trabajo como comercial y después en una agencia de marketing ✍️ Copywriting Persuasivo: Gracias a mi experiencia como copywriter en una agencia Si buscas a alguien con una fuerte ética de trabajo, un enfoque en el crecimiento constante y una amplia experiencia en el mundo del trading, el marketing, la redacción y las ventas, no dudes en contactarme. Estoy listo para aportar mi experiencia y pasión a tu equipo.
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Sales & Marketing
    Spanish Tutoring
    Freelance Marketing
    Sales Writing
    Marketing Strategy
    Marketing
    Trading Strategy
    DeepL Translator
    Forex Trading
    Copywriting
    Castilian Spanish
  • $250 hourly
    I am a professional trader with over 5 years of experience in technical analysis, risk management, and market strategy development. I specialize in platforms like cTrader, MetaTrader, and TradingView, creating custom solutions for traders and investors. My expertise lies in optimizing financial performance through custom strategies, and in-depth market analysis. Additionally, I have extensive experience passing funded account challenges and helping other traders achieve consistency and success. I am committed to delivering value through a disciplined, strategic, and results-driven approach.
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Data Analysis
    Data Visualization
    Trading Lesson
    Cryptocurrency Trading
    Financial Trading
    Trading Strategy
    Forex Trading
  • $28 hourly
    Currently working as a full time .NET Programmer and also as part-time Freelancer. I have expertise in areas of web-programming , development, promotion, translations, and, of course, article writing. * C# (I could quickly switch to VB.NE T if necessary) * .NET Framework in general. Specifically, I have used the following technologies: * ADO.NET * Windows Forms * WPF * WCF * Silverlight * LINQ to SQL * Entity Framework * ASP.NET MVC * Visual Studio, I have used heavily all versions since Visual Studio .NET 2003 * SQL Server, I have been using it since version 2000 * Z80 assembler
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    ASP.NET
    X86 Assembly Language
    Forex Trading
    C#
    .NET Framework
    MySQL
  • $60 hourly
    I have experience managing projects, operations, recruiting processes and account management teams in fast-growing tech-related startups. I am used to working in ever-changing environments, launching new operations across different markets. I'm data-obsessed and skilled in creating impactful dashboards and processes analytical tools. My expertise lies in extracting valuable insights from data, driving informed decision-making and strategic planning.
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Jira
    Salesforce CRM
    Python
    MetaTrader 4
    Content Writing
    Copywriting
    Castilian Spanish
    Google Sheets
    Salesforce
    Technical Analysis
    Google Ads
    Forex Trading
    SQL
  • $17 hourly
    I was born in Spain, studied in a bilingual (Spanish-English) school since the age of 7 and graduated in Business Administration. I have 9 years of experience as freelancer, writing articles, scripts, ads, stories, and translating/proofreading different types of projects, as video games, novels, comics, websites, marketing materials. The subjects I am used to work with are: - Gaming (RPG, visual novel, action, strategy, adult) - Tech (VPN and Anti-virus) - Cryptocurrencies, forex trading, fintech and NFTs - Fiction (romance, science fiction and fantasy) - Sports (soccer and basketball - History Contact me to discuss your project and how my skills can assist you to deliver it with accuracy and on date.
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Translation
    Copywriting
    Video Game
    Creative Writing
    Cryptocurrency
    English to Spanish Translation
    Video Game Localization
    IBM RPG
    Forex Trading
    Novel
    Proofreading
    Spanish
    English
    Castilian Spanish
  • $20 hourly
    Video Editor & Crypto Analyst | Expertise in Financial Content Creation I am a versatile professional with over eight years of experience in video editing and several years in trading and cryptocurrency analysis. My unique combination of creative and analytical skills allows me to produce engaging visual content and actionable trading insights for diverse audiences. What I Bring: Video Editing Expertise: Advanced proficiency in Adobe Premiere Pro, Photoshop, and other industry-standard tools. Experience editing short- and long-form videos for social media, YouTube, and professional broadcast. Strong creative vision paired with technical excellence, ensuring high-quality audio and visuals. Collaborated with local television networks and businesses to deliver polished, impactful content under tight deadlines. Trading & Crypto Analysis: Deep understanding of cryptocurrency markets, including ecosystems like Solana and Ethereum. Skilled in using TradingView to create clean, professional trading charts tailored to specific strategies. Expertise in identifying profitable signals, analyzing emerging projects, and navigating market volatility. Knowledge of Smart Money Concepts, Elliott Wave Theory, and other advanced trading methodologies. Why Work With Me? Creative & Analytical Balance: I merge storytelling with data analysis, creating content that informs and captivates. Proven Results: I’ve helped businesses and content creators grow their audiences and improve engagement with targeted, visually compelling work. Reliable Communication: Fluent in English and accustomed to meeting deadlines while maintaining clear communication. Adaptability: From editing cinematic visuals to crafting financial charts, I adapt to each project's unique needs. Whether you need dynamic video content or professional trading charts, I am here to help bring your vision to life. Let’s create something extraordinary together!
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Trading Strategy
    Cryptocurrency
    Cryptocurrency Trading
    Forex Trading
    Trading Lesson
    TradingView
    Drawing
    Freestyle Drawing
    Storyboarding
  • $20 hourly
    I'm a multifaceted professional offering a unique blend of programming, trading, and appointment setting skills. As a freelancer, I work directly with clients, providing tailored solutions to address their diverse needs. My expertise includes: Programming: Building custom software applications, automating tasks, and streamlining processes to enhance efficiency. Trading: Utilizing technical and fundamental analysis to navigate financial markets, making informed investment decisions for my own portfolio. Appointment Setting: Proactively identifying and connecting with potential clients, scheduling qualified and productive appointments for sales and business development. I have a proven ability to manage multiple projects simultaneously, adapt to shifting priorities, and deliver high-quality results under tight deadlines. My direct client interaction fosters strong relationships, ensuring projects align with their specific goals and requirements.
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Facebook Ads Manager
    Forex Trading
    Software
    Program Management
    Appointment Setting
    MetaTrader 4
    MetaTrader 5
    Statpoint Statgraphics
  • $20 hourly
    Greetings! I'm Tanja and I specialize in futures trading, helping individuals navigate the complexities of the financial markets with ease. With 3 years of experience in the industry, I've honed my skills to offer top-notch services tailored to your needs. 📈 Futures Trading Expertise: Whether you're just starting or looking to enhance your trading strategies, I'm here to guide you. I have a proven track record of analyzing market trends, identifying lucrative opportunities, and executing trades with precision. 💼 Evaluation Passing: Facing evaluations can be daunting, but with my assistance, I can help you get them passed. With my personalized strategies, and in-depth analysis, I can ensure a sucess 💰 Account Management: I approach account management with the utmost diligence and care. From risk management to portfolio diversification, I'll work tirelessly to optimize your investments and maximize returns. 🤝 Client-Centric Approach: Your success is my priority. I believe in fostering strong, long-term relationships built on trust, transparency, and mutual respect. I'm dedicated to understanding your goals and objectives, tailoring my services to meet your unique requirements. 🚀 Why Choose Me? Proven expertise in futures trading and financial markets. Customized evaluation preparation strategies for guaranteed success. Diligent account management focused on maximizing your returns. Commitment to exceptional client satisfaction and support. Whether you're a novice trader or an experienced investor, I'm here to empower you every step of the way. Reach out today, and let's turn your financial aspirations into reality.
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Trading Lesson
    Technical Analysis
    Investment Strategy
    MetaTrader 5
    MetaTrader 4
    Financial Analysis
    Financial Trading
    Financial Plan
    TradingView
    Trading Strategy
    Foreign Exchange Market
    Forex Trading
  • $10 hourly
    Are you looking to automate your cryptocurrency trading using the popular Pocket Option Bot platform? Look no further! I am here to provide expert assistance with the installation and configuration of the Pocket Option Bot for your cryptocurrency trading needs. With extensive experience in bot setups and cryptocurrency trading, I ensure a seamless installation process that will enhance your trading efficiency and eliminate the need for manual trades. My goal is to help you maximize your trading potential with minimal effort on your part.
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    AI Trading
    TradingView
    Trading Automation
    Pine Script
    Software Development
    Font Development
    AI Development
    Python
    Bot Development
    Forex Trading
    Cryptocurrency Trading
    Cryptocurrency
    Product Development
    Web Development
    Blockchain Architecture
  • $8 hourly
    I am a seasoned trader and investor with extensive experience since 2007. I specialize in creating stock portfolios, managing dividend income investments, and trading stocks, forex, and cryptocurrencies. Additionally, I have comprehensive expertise in options trading on both stocks and index. My diverse skill set allows me to navigate various financial markets effectively and maximize investment opportunities. Soy un trader e inversionista experimentado con amplia experiencia desde 2007. Me especializo en la creación de carteras de acciones, gestión de inversiones en ingresos por dividendos y trading de acciones, forex y criptomonedas. Además, tengo un conocimiento integral en el trading de opciones tanto en acciones como en índices. Mi conjunto de habilidades diversificadas me permite navegar eficazmente en diversos mercados financieros y maximizar las oportunidades de inversión.
    vsuc_fltilesrefresh_TrophyIcon Foreign Exchange Trading
    Personal Finance & Wealth Management
    Trading Strategy
    Trading Lesson
    Cryptocurrency Trading
    Stock Option Agreement
    Forex Trading
    Market Analysis
    Stock Market
  • Want to browse more freelancers?
    Sign up

How hiring on Upwork works

1. Post a job

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.