Markets Quantitative Analyst Jobs

Unsere Mission und Kunden: Wir schaffen die Freiheit für KMUs, erfolgreich zu sein - mit Europas führendem Finanz-Workspace, der Banking als Kern mit leistungsstarken Finanztools verbindet. Wir sind stolz auf unsere Trustpilot-Bewertung von 4,8, die auf über 55.000 Rezensionen basiert. Kundenzufriedenheit steht im Mittelpunkt unseres Handelns(und hier) - belegt durch einen Net Promoter Score von 75. Unser Weg: 2017 von Alexandre und Steve gegründet, ist Qonto auf über 1.600 Qontoers gewachsen, die mehr als 600.000 Kunden in acht europäischen Ländern betreuen. Seit 2023 sind wir profitabel - und das ist erst der Anfang. Unsere Überzeugungen: Wir stellen nach Fähigkeiten und Potenzial ein. Mit über 80 Nationalitäten, 45 % Frauen im Unternehmen und 56 % Frauen in unserem Leadership-Team ist Diversität kein Programm – sie ist Teil unserer DNA. Wir haben einen diskriminierungsfreien Einstellungsprozess aufgebaut, weil die besten Teams auf Leistung basieren. KI bei Qonto: KI ist fest in unsere Arbeitsweise integriert (hier). Jede/r Qontoer/in hat unbegrenzten Zugang zu den besten KI-Tools. Wir suchen Menschen, die experimentieren, ohne auf Erlaubnis zu warten, KI über das Offensichtliche hinaus nutzen und wissen, wann man ihr vertrauen kann - und wann man sie hinterfragen sollte. ------------------------------------------------------------------------------------------------------ Werde Teil unseres Customer Onboarding Teams als Customer Onboarding Manager Deutschland und begleite deutsche Unternehmer und Selbstständige bei Firmengründung, Kontoeröffnung und Kontovalidierung. Du bearbeitest komplexe Anfragen rund um den gesamten Onboarding-Prozess und sorgst für einen reibungslosen Start mit Qonto. Du berichtest an Mirela Jovanovic und Rafael Hajzeri, Team Manager im Customer Onboarding / KYC/KYB Operations Bereich. Standort: Belgrad (Büro) oder remote in Serbien. ➡️ Was du tun wirst Komplexe Onboarding-Anfragen bearbeiten: Anspruchsvolle Fälle rund um Firmengründung,

At Trustpilot, we're on an incredible journey. We're a profitable, high-growth FTSE-250 company with a big vision: to become the universal symbol of trust. We run the world's largest open customer review platform, and while we've come a long way, there's still so much exciting work to do. Come join us at the heart of trust! As an (Associate) Customer Success Manager, you are the value owner and trusted advisor for your portfolio of customers within the Benelux market. You ensure every customer achieves success with Trustpilot - from onboarding and adoption to measurable results and advocacy. Your mission is to maximize product adoption, strengthen customer health, and reduce churn, ensuring customers realize ongoing value and remain engaged, satisfied partners. This role is based in our Amsterdam office, where our Benelux team is located. What you'll be doing: Lead post-sale onboarding and setup, ensuring a smooth handover from New Business and a strong foundation for adoption. This results in a high business adoption Drive measurable Business Adoption across your customer portfolio to deliver tangible value for our customers. Achieve high Gross Renewal Rate (GRR) by maintaining customer health and addressing risks proactively, in collaboration with our Account Managers. Own customer health, proactively identifying risks and executing recovery actions to maintain high Gross Renewal Rates (GRR). Drive customer satisfaction and advocacy, achieving strong Net Promoter Score (NPS) results across your portfolio. Act as the first line for customer issues related to onboarding, usage, or product value. Partner with Marketing to identify case study,

Who Are We? Postman is the world’s leading API platform, used by more than 45 million+ developers and 500,000 organizations, including 98% of the Fortune 500. Postman is helping developers and professionals across the globe build the API-first world by simplifying each step of the API lifecycle and streamlining collaboration—enabling users to create better APIs, faster. The company is headquartered in San Francisco and has offices in Boston, New York, Austin, Tokyo, London, and Bangalore - where Postman was founded. Postman is privately held, with funding from Battery Ventures, BOND, Coatue, CRV, Insight Partners, and Nexus Venture Partners. Learn more at postman.com or connect with Postman on X via @getpostman. P.S: We highly recommend reading The "API-First World" graphic novel to understand the bigger picture and our vision at Postman. The Opportunity Each Mid Market Account Executive has a territory of around 100 accounts, containing existing Postman users on all levels of Postman. The goal is to build strategies to manage target accounts while working with Sales Development representatives, with the intention of understanding how they are using Postman, and introduce them to all the capabilities of our Enterprise Suite. This is a unique opportunity to join the rapidly growing sales team at Postman and we are looking for passionate, energetic people to further scale our fast-growing business. The ideal candidate has personally driven significant sales growth at Technical SaaS companies. What You'll Do Take ownership of the full sales cycle from prospecting to closure Build a strategic plan for your territory Create and manage sales sourced outbound opportunities Execute a land and expand sales strategy to drive widespread adoption and larger deployments Educate customers on the value of Postman throughout the evaluation and adoption cycle Navigate key decision makers to build Postman Enterprise awareness within organizations Leverage data to understand you

Who Are We? Postman is the world’s leading API platform, used by more than 45 million+ developers and 500,000 organizations, including 98% of the Fortune 500. Postman is helping developers and professionals across the globe build the API-first world by simplifying each step of the API lifecycle and streamlining collaboration—enabling users to create better APIs, faster. The company is headquartered in San Francisco and has offices in Boston, New York, Austin, Tokyo, London, and Bangalore - where Postman was founded. Postman is privately held, with funding from Battery Ventures, BOND, Coatue, CRV, Insight Partners, and Nexus Venture Partners. Learn more at postman.com or connect with Postman on X via @getpostman. P.S: We highly recommend reading The "API-First World" graphic novel to understand the bigger picture and our vision at Postman. The Opportunity Each Mid Market Account Executive has a territory of around 100 accounts, containing existing Postman users on all levels of Postman. The goal is to build strategies to manage target accounts while working with Sales Development representatives, with the intention of understanding how they are using Postman, and introduce them to all the capabilities of our Enterprise Suite. This is a unique opportunity to join the rapidly growing sales team at Postman and we are looking for passionate, energetic people to further scale our fast-growing business. The ideal candidate has personally driven significant sales growth at Technical SaaS companies. What You'll Do Take ownership of the full sales cycle from prospecting to closure Build a strategic plan for your territory Create and manage sales sourced outbound opportunities Execute a land and expand sales strategy to drive widespread adoption and larger deployments Educate customers on the value of Postman throughout the evaluation and adoption cycle Navigate key decision makers to build Postman Enterprise awareness within organizations Leverage data to understand you

At Trustpilot, we're on an incredible journey. We're a profitable, high-growth FTSE-250 company with a big vision: to become the universal symbol of trust. We run the world's largest open customer review platform, and while we've come a long way, there's still so much exciting work to do. Come join us at the heart of trust! Are you an experienced commercial professional looking for an environment where your ideas matter, decisions move quickly, and your direct contribution makes a visible impact? We built Trustpilot to be that place. As AI reshapes how consumers search, discover, and choose brands, Trustpilot’s unique dataset of authentic human sentiment is becoming increasingly critical. We are uniquely positioned to define how trust and reputation function in an AI-driven digital economy and we’re building an inclusive environment where curious, ambitious people can do the best work of their careers. We’re expanding our Enterprise business across the Benelux region, and we’re looking for collaborative, forward-thinking professionals to help shape what’s next. You’ll work with some of the region’s leading brands at a moment when AI is fundamentally changing how reputation is built and how consumers make decisions, while helping businesses use authentic human sentiment to strengthen their visibility, credibility, and competitive position in the AI economy. If you’re energised by building new approaches, solving complex challenges, and seeing the tangible impact of your work, we’d love to hear from you. This role requires native-level Dutch and strong professional English language skills. It is based in our Amsterdam office. What you’ll be doing: Drive Portfolio Value: Manage a portfolio of Enterprise accounts across the Benelux region, owning customer retention, guiding successful renewals, and identifying growth opportunities through thoughtful account mapping. Partner for Success: Work in close partnership with dedicated Customer Success Managers (CSMs). While you

About Wolt At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world. In 2022 we joined forces with DoorDash and together we keep on dreaming big and expanding across the globe. Working at Wolt isn’t always easy, but it’s definitely exciting. Here you’ll learn more, build more, and ship more than in most other companies. You’ll be challenged a lot, but also have a lot of fun on the way. So, if you’re a self-starter with drive and entrepreneurial spirit, this could be the ride of your life. Szeretnéd önállóan irányítani a Wolt Market zuglói csapatát és vezetni az adott műszakot? Emellett rendelkezel korábbi bolti tapasztalattal? Ha a válaszod igen, olvass tovább! Mi lesz a feladatod? vásárlói elégedettség biztosítása a márka képviselőjeként a Wolt népszerűsítése precíz, pontos munkavégzés együttműködés a csapattal, tagok motiválása részvétel a bolt napi működésében Mit várunk Tőled? bolti, raktári eladói tapasztalat műszakvezetőként szerzett tapasztalat előnyt jelent, de nem feltétel önálló, proaktív munkavégzés asszertív kommunikáció multitasking képesség napközbeni, esti és hétvégi műszakok vállalása - a Wolt Market Buda hétfőtől vasárnapig reggel 7.00-től 23:00-ig tart nyitva folyékony magyar nyelvtudás (fluent in Hungarian) legalább alapszintű angol nyelvtudás Mit kínálunk mi? Wolt-os dolgozói kedvezmény, kreditek formájában Cafeteria juttatás, Szép Kártya formájában All You Can Move Kártya lehetőség Wolt-specifikus tréning programok Csapatépítők és egyéb közös céges események A következő lépés Ha szívesen dolgoznál olyan környezetben, ahol gyorsan fejlődhetsz, felelősséget vállalhatsz a műszakodért, illetve szeretnél egy extrém ambiciózus csapat tagja lenni, akkor kattints és beszélgessünk! Folyamatosan dolgozzuk fel a beérkező jelen

About Wolt At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world. In 2022 we joined forces with DoorDash and together we keep on dreaming big and expanding across the globe. Working at Wolt isn’t always easy, but it’s definitely exciting. Here you’ll learn more, build more, and ship more than in most other companies. You’ll be challenged a lot, but also have a lot of fun on the way. So, if you’re a self-starter with drive and entrepreneurial spirit, this could be the ride of your life. Csapatjátékosok figyelem! Szereted a rugalmas és dinamikus munkakörnyezetet, ahol részt vehetsz a kereskedelem jövőjének kialakításában? Ha igen, akkor olvass tovább! Csatlakozz hozzánk még ma teljes munkaidőben, és építsük tovább együtt a Wolt Marketet Dél-Pesten! 🤩 Mi lesz a feladatod? Rendelések elfogadása az alkalmazásunkon keresztül A beérkező áru feldolgozása Megrendelt termékek összekészítése, csomagolása és átadása a futároknak, vagy a vásárlóknak A belső rendszerünk naprakészen tartása a termékek adataival A bolt rendjének és tisztaságának fenntartása Részvétel a bolt működésének folyamatos fejlesztésében Mit várunk tőled? Gyors tanulási- és multitasking képességet Proaktivitást, szolgáltatói szemléletet Önállóságot, ambíciót, a gyors tempójú startup környezet szeretetét Napközbeni, esti és hétvégi műszakok vállalását egyaránt - A Wolt Market Dél-Pest reggel 7 órától 23.15-ig tart nyitva! Bolti vagy raktári tapasztalat előny, de nem feltétel Legalább alapszintű angol nyelvtudást Folyékony magyar nyelvtudás (Fluent in Hungarian) Mit kínálunk mi? Wolt-os dolgozói kedvezmény, kreditek formájában Cafeteria juttatás, Szép Kártya formájában All You Can Move Kártya lehetőség Wolt-specifikus tréning programok Csapatépítők és egyéb k

Celonis is the trusted platform to industrialize Enterprise AI. At our core is the Celonis Context Model — which combines process data, business knowledge, and intelligence into a living digital twin of the enterprise that AI can actually understand, turning AI's operational blind spots into operational clarity. World's leading companies trust Celonis and its global ecosystem of partners to make their AI agents, people, systems, and processes work together, achieving transformational outcomes. We believe there's a massive opportunity to unlock global productivity and sustainability by giving AI the context to understand how every business process really works. Join our mission to make processes work for people, companies, and the planet. The Team: Value Engineering is responsible for our largest Fortune 500 customers and owns their transformation journey by working on the very frontier of what’s possible with data and AI on the Celons Platform. Partnering closely with the Sales team, Value Engineering is responsible for ensuring that the Celonis Platform is deployed to tackle the most strategic business challenges, fits into the right place in our customers’ technology stack and most importantly generates strong ROI through deep and broad deployments. The Role: As a Senior Value Engineer, you will spearhead AI and data-driven business transformation supporting customers in Brazil, by contributing to your customer’s end-to-end value journey using the Celonis Context Model. Working alongside Lead and Principal VEs, you will combine technical execution with consulting and project management. As an AI-fluent operator, your core mandate is to orchestrate complex roadmaps and execute targeted transformation initiatives that improve how these businesses operate across their ecosystems. The role will support the growth of our LATAM customers. We are looking for someone with experience in business operations in LATAM and appetite to relocate to Brazil. The work you’ll

At Trustpilot, we're on an incredible journey. We're a profitable, high-growth FTSE-250 company with a big vision: to become the universal symbol of trust. We run the world's largest open customer review platform, and while we've come a long way, there's still so much exciting work to do. Come join us at the heart of trust! *This role is based out of our Copenhagen HQ office and requires fluent French, with strong English skills* As an Account Executive for the French Mid-Market, you’ll join our team at the heart of the action, right on our home turf in Copenhagen. You'll be literally at the centre of where the fun happens, with a unique opportunity to drive change and see the direct impact of your work on our business growth. You’ll be responsible for winning new mid-market customers in France and managing the full sales cycle, from identifying and prospecting potential customers through to discovery, demonstration, negotiation and closing. You will join our French Mid-Market team, working closely with both Account Executives and Account Managers. This is an outbound-led role. You will be expected to generate a substantial share of your own pipeline through consistent and targeted outreach. Your prospecting efforts will be complemented by meetings generated by our BDR team and qualified inbound leads. You’ll engage with senior decision-makers, uncover complex business needs and build compelling business cases that demonstrate the commercial value of Trustpilot. We’re not just selling SaaS. You’ll help established French businesses use trust and transparency to strengthen their brands, improve customer acquisition and accelerate growth. What you’ll be doing: Drive new business across the French Mid-Market, from prospecting to close. Own and exceed a monthly revenue target through consistent pipeline creation and strong deal execution. Generate a substantial share of your pipeline through proactive and personalised outbound prospecting across phone, email, Link

A Career with Point72’s Surveillance Team Point72’s Surveillance team sets the industry standard for intelligence driven surveillance by proactively identifying, monitoring, and assessing various sources of compliance risk using proprietary tools and specialized tradecraft. We support senior management by providing strategic assessments, actionable recommendations, and real-time escalations. At Point72, members of the Surveillance team conduct integrated trade and communication surveillance and collaborate to turn information into intelligence for our internal customers. The team also monitors employee activity for evidence of violations of applicable federal securities laws, internal compliance policies and procedures, and relevant rules and regulations enforced by the SEC, FINRA, and other organizations. What you’ll do Conduct routine trade surveillance and investigations Conduct routine communication surveillance for potential violations of relevant securities laws, rules, regulations, and firm policies, escalating suspicious or non-compliant events Partner with technology and compliance stakeholders to calibrate alert parameters and thresholds, and conduct data quality and completeness reviews across the market abuse surveillance program Craft intelligence questions and appropriately scope research to produce sophisticated and well-written analysis that provides insight and risk analysis Use tools and methodologies such as structured analytic techniques to improve analysis, check assumptions, and identify signposts or indicators of change Work with managers to respond to information requests from financial regulators and ad-hoc taskings from members of the senior management team Serve as a subject matter expert in your assigned coverage and stay abreast of relevant regulations, industry best practices, and internal policies Leverage resources, technology, and information to minimize risk and protect the firm What’s required Bachelor’s degree

About the team OpenAI’s mission is to build safe artificial general intelligence (AGI) which benefits all of humanity. This long-term undertaking brings the world’s best scientists, engineers, and business professionals into one lab together to accomplish this. In pursuit of this mission, our Go To Market (GTM) team is responsible for helping customers learn how to leverage and deploy our highly capable AI products across their business. The team is made of Sales, Solutions, Support, Marketing, and Partnership professionals that work together to create valuable solutions that will help bring AI to as many users as possible. About the role Our Sales team has a unique mission to help customers understand the deep impact that highly capable AI models can bring to their business and users. This role is a mixture of technical understanding, vision, partnership, and value-driven strategy. You’ll be a key driver of opportunities through the entire sales cycle, from pipeline generation to closure. You’ll work with researchers, engineers, and solution strategists to help customers evolve their industry with AI. This role is based in San Francisco. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees. In this role, you'll: Manage a portfolio of accounts, developing and executing strategies for a comprehensive account plan Lead our prospects’ journeys from consideration to successful deployment Partner with solutions and research engineering to build and execute complex customer programs and projects Own a consumption revenue target Manage consumption revenue forecasts Analyze key account metrics to create reports and provide insights to internal and external stakeholders Closely monitor the industry landscape (people, competitors, partners, etc.) to contribute to product roadmap and other corporate strategies Collaborate with solutions, marketing, communications, business operations, people operations, finance, product m

About the Team The B2B Marketing team is responsible for helping businesses understand, adopt, and get value from OpenAI’s products. B2B marketing is a major and growing priority for OpenAI as we scale our work with companies, developers, and institutions around the world. About the Role Within B2B Marketing, Demand Generation builds the integrated, full-funnel engine that connects audience insights, content, field and digital experiences, paid media, lifecycle, and sales follow-through to qualified pipeline. We partner closely with Sales, Partnerships, Product Marketing, Communications, Creative, Web, RevOps, Analytics, and regional teams to create a cohesive customer experience and scale what works. We’re looking for a Senior Mid-Market & SMB Strategist to own demand strategy for two high-velocity segments with distinct customer needs, buying journeys, and sales motions. You’ll translate segment goals into an integrated portfolio of programs, identify the highest-leverage opportunities to improve conversion and pipeline, and align channel teams and GTM partners around a shared audience, message, handoff, and measurement plan. This is a hands-on role for someone who combines strong strategic segmentation with a practical, test-and-learn operating mindset. In this role, you will: Own the Mid-Market and SMB demand strategy, including segment priorities, audience definitions, pipeline goals, program portfolio, investment recommendations, and quarterly roadmap. Translate segment insights into integrated campaigns and always-on journeys across web, email, paid media, webinars, content, partners, and sales-assisted follow-up. Partner with Product Marketing and Sales to define ideal customer profiles, buyer needs, priority use cases, value propositions, and offers for each segment. Work with Web, Lifecycle, RevOps, SDR, and Sales to improve high-intent conversion paths, qualification, routing, speed-to-lead, and follow-up quality. Build a disciplined testing agenda ac

Who we are: Sardine is the leading agentic risk platform for fighting financial crime. Our integrated solution unifies data across risk teams to help organizations stop fraud in real time, prevent AI-driven attacks, and automate fraud and AML operations. Sardine’s platform is strengthened by one of the fastest-growing fraud consortiums in the market, spanning more than 6 billion profiled devices, 800 million consumers, and 3 million businesses worldwide. Leading companies including FIS, GoDaddy, Intuit, Edward Jones, ZoomInfo, and Checkout.com rely on Sardine to secure and grow trust in their products. Our culture: We hire talented, self-motivated individuals with extreme ownership and high growth orientation. We value performance and not hours worked. We believe you shouldn't have to miss your family dinner, your kid's school play, friends get-together, or doctor's appointments for the sake of adhering to an arbitrary work schedule. We're a remote-first team spread across time zones, so no office to report to - work from wherever helps you do your best work. Just a couple of things to keep in mind: pay is based on where you're located, and you'll need to keep a home base in the country you're hired in. So while we love the "coffee shop today, mountains tomorrow" life, this isn't a passport-optional, work-from-anywhere-on-Earth kind of remote - think flexible within your country, not borderless. Location: Remote - US or Canada About the Role: As an Account Executive for our Enterprise team, you will play a pivotal role in championing the Sardine value proposition. Your responsibilities include cultivating a qualified pipeline, formulating sales strategies, and securing deals within prestigious US banks, Fortune 1000 companies, and other large Enterprises. This individual contributor position reports directly to the Head of Global Sales. Sardine is looking for an accomplished sales professional with a proven track record and an established Fraud and Financial Service

About Wolt At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world. In 2022 we joined forces with DoorDash and together we keep on dreaming big and expanding across the globe. Working at Wolt isn’t always easy, but it’s definitely exciting. Here you’ll learn more, build more, and ship more than in most other companies. You’ll be challenged a lot, but also have a lot of fun on the way. So, if you’re a self-starter with drive and entrepreneurial spirit, this could be the ride of your life. Szeretnéd önállóan irányítani a Wolt Market budai csapatát és vezetni az adott műszakot? Emellett rendelkezel korábbi bolti tapasztalattal? Ha a válaszod igen, olvass tovább! Mi lesz a feladatod? vásárlói elégedettség biztosítása a márka képviselőjeként a Wolt népszerűsítése precíz, pontos munkavégzés együttműködés a csapattal, tagok motiválása részvétel a bolt napi működésében Mit várunk Tőled? bolti, raktári eladói tapasztalat műszakvezetőként szerzett tapasztalat előnyt jelent, de nem feltétel önálló, proaktív munkavégzés asszertív kommunikáció multitasking képesség napközbeni, esti és hétvégi műszakok vállalása - a Wolt Market Buda hétfőtől vasárnapig reggel 6.00-tól éjfélig tart nyitva folyékony magyar nyelvtudás (fluent in Hungarian) legalább alapszintű angol nyelvtudás Mit kínálunk mi? Wolt-os dolgozói kedvezmény, kreditek formájában Cafeteria juttatás, Szép Kártya formájában All You Can Move Kártya lehetőség Wolt-specifikus tréning programok Csapatépítők és egyéb közös céges események A következő lépés Ha szívesen dolgoznál olyan környezetben, ahol gyorsan fejlődhetsz, felelősséget vállalhatsz a műszakodért, illetve szeretnél egy extrém ambiciózus csapat tagja lenni, akkor kattints és beszélgessünk! Folyamatosan dolgozzuk fel a beérkező jelentk

About ElevenLabs ElevenLabs is an AI research and product company transforming how we interact with technology. We launched in January 2023 with the first human-like AI voice model. Today, we serve millions of users and thousands of businesses - from fast-growing startups to large enterprises like Deutsche Telekom and Meta. Our investors are some of the world's most prominent, including Andreessen Horowitz, ICONIQ Growth and Sequoia. We've raised $781M in funding and our last valuation was $11B - multiples of 11, always. We have expanded from voice into three main platforms: ElevenAgents enables businesses to deliver seamless and intelligent customer experiences, with the integrations, testing, monitoring, and reliability necessary to deploy voice and chat agents at scale. ElevenCreative empowers creators and marketers to generate and edit speech, music, image, and video across 70+ languages. ElevenAPI gives developers access to our leading AI audio foundational models. Everything we do is the result of the creativity and commitment of our team - builders doing the best work of their lives. We are researchers, engineers, and operators. IOI medalists and ex-founders. If you want to work hard and create lasting positive impact, we want to hear from you. How we work High-velocity: Rapid experimentation, lean autonomous teams, and minimal bureaucracy. Impact not job titles: We don’t have job titles. Instead, it’s about the impact you have. No task is above or beneath you. AI first: We use AI to move faster with higher-quality results. We do this across the whole company—from engineering to growth to operations. Excellence everywhere: Everything we do should match the quality of our AI models. Global team: We prioritize your talent, not your location. What we offer Innovative culture: You’ll be part of a generational opportunity to define the trajectory of AI, surrounded by a team pushing the boundaries of what’s possible. Growth paths: Joining ElevenLabs means joining a