\n \n\nAbout the Role: \n\nSezzle has an incredible opportunity to make an impact within a growing FinTech company. As a Senior Software Engineer focused on our mobile app, you will be responsible for solving challenges in our highest-traffic applications, with your work having a direct impact on our product and the millions of customers using it.\n\nAbout Sezzle:\n\n\nSezzle is a cutting-edge fintech company whose long-standing mission is to financially empower the next generation. Only one in three millennials own a credit card, and the vast majority of millennials possess a subprime credit score or no score at all. To address these problems, Sezzle has built a payment platform that increases purchasing power for consumers by offering interest-free installment plans at online stores. This increase in purchasing power for consumers leads to increased sales and basket sizes for the numerous eCommerce merchants that currently work with Sezzle.\n\nAs the first and only B-Corp in the payments space, Sezzle’s goal is to help everyone pursue financial freedom, and to invest in social good and ethical initiatives that shape a better world. \n\nAt Sezzle, we’re committed to putting purpose alongside profitability. We work hard to maintain rigorous standards of social and environmental performance, accountability, and transparency to build a better world. The employees at Sezzle lean into significant societal and cultural shifts, ensuring internal and external focus on positive impacts that benefit our community.\n\nKey Role Responsibilities: \n\n\n* Help own and build out new features within our cross-platform TypeScript React Native app, and Golang backend APIs.\n\n* Manage our releases, using tools like cohorting, feature flags, and app-store infrastructure to ensure a safe rollout to our millions of active users.\n\n* Maintain a strong working relationship with product, design, and the business to ensure stakeholder needs are being evaluated and met.\n\n* Work with the team to continuously build clean, scalable, robust, and testable code.\n\n* Develop a deep working knowledge of your application, data domain, and KPIs.\n\n\n\n\nMinimum Requirements: \n\n\n* 6+ years experience solving technical problems as part of a team.\n\n* Experience developing and delivering a mobile application to Apple and Google’s mobile app stores.\n\n* Strong familiarity with modern Frontend Development, Javascript or Typescript, and building applications with React Native, or similar cross-platform framework.\n\n* Understanding of relational databases like MySQL.\n\n\n\n\nPreferred Knowledge and Skills:\n\n\n* Knowledgeable in writing automated tests for applications (unit, integration, end-to-end), and implementing them in a CI environment.\n\n* Ability to solve problems with backend-focused languages like Go, Python, Java or similar.\n\n* Familiarity with typical microservice architecture composed of HTTP APIs.\n\n* Experience working with native code on iOS, Android.\n\n\n\n\nAbout You: \n\n\n* A+ character. We are team-first here at Sezzle. \n\n* A hard-working mentality. It’s early and there is still a lot to build. \n\n* An excellent communicator. \n\n* Ownership. You aren’t afraid to take on new responsibilities and you act like an owner in everything you do.\n\n* A fun attitude. Life’s too short. We can have fun while we work hard on cool things. \n\n* Smarts. We need people that are smart enough to make decisions on their own and also smart enough to know when they need input from others. \n\n\n\n\nWhat Makes Working at Sezzle Awesome? \n\nAt Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators; we are skilled musicians, yogis, cyclists, chefs, golfers, dog-lovers, and rock-climbers. We believe in surrounding ourselves with not only the best and the brightest individuals, but those that are unique and purpose-driven in all that they do. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire. \n\nCompensation\n\nThe compensation range for the role is as follows:\n\n4,600 - 7,500 USD Monthly\n\nEqual Employment Opportunity: Sezzle Inc. is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, color, religion, sex, national origin, age, disability, genetic information, pregnancy, or any other legally protected status. Sezzle recognizes and values the importance of diversity and inclusion in enriching the employment experience of its employees and in supporting our mission.\n\n#Li-remote \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to React, JavaScript, Java, Typescript, Mobile, Senior, Sales, Golang, Engineer and Backend jobs that are similar:\n\n $60,000 — $100,000/year\n
\n\n#Benefits\n 💰 401(k)\n\n🌎 Distributed team\n\n⏰ Async\n\n🤓 Vision insurance\n\n🦷 Dental insurance\n\n🚑 Medical insurance\n\n🏖 Unlimited vacation\n\n🏖 Paid time off\n\n📆 4 day workweek\n\n💰 401k matching\n\n🏔 Company retreats\n\n🏬 Coworking budget\n\n📚 Learning budget\n\n💪 Free gym membership\n\n🧘 Mental wellness budget\n\n🖥 Home office budget\n\n🥧 Pay in crypto\n\n🥸 Pseudonymous\n\n💰 Profit sharing\n\n💰 Equity compensation\n\n⬜️ No whiteboard interview\n\n👀 No monitoring system\n\n🚫 No politics at work\n\n🎅 We hire old (and young)\n\n
\n\n#Location\nBogotá, Bogotá, Colombia

## 🤩 We are **Donut**\n- **Say no to idle money.** If you've ever wondered why your bank account is earning 0.1% and banks are worth billions, we're here to change that.\n- **We believe the future is open finance.** DeFi makes financial independence possible for all—offering 2-10%+ yields and earning opportunities far superior to traditional banks and institutions.\n- **Our traction is standout.** We have 5,000+ users already using Donut and seen 50%+ monthly growth rates since launch.\n- **We've raised $2.8M by the backers of N26.** We're backed by amazing FinTech and DeFi investors including [Redalpine](https://redalpine.com/), [InVentures](https://www.inventures.vc/), [Robot Ventures](https://robvc.com/) ([Robert Leshner](https://twitter.com/rleshner), CEO Compound), [Tiny VC](https://www.tiny.vc/) & [Entrepreneur First](https://www.joinef.com/).\n## 🎪 The role\n- You'll be building an Event-Driven Microservice architecture based on Golang on Kubernetes\n- You'll be working with cutting edge technologies like GraphQL and Terraform\n- You'll be working on DeFi and Crypto products, initiating Ethereum blockchain transactions and building out our on-chain architecture\n- You'll be collaborating with the Product and Engineering teams to help craft new features including fun ways to help everyone micro-invest, earn exciting rewards and improve their financial well being\n- You'll be able to learn and help others grow through frequent knowledge sharing\n## 🙌 About you\n- You have at least 3 years of experience in Software Engineering with industry-standard server languages, e.g. Java, NodeJS, Ruby, Go\n- You have at least 1 year of experience writing Go code\n- You take initiatives and ownership of your work and take it from idea to production\n- You believe that code quality is one of the most important factors for our long term success\n- You believe that TDD is the way to Go\n- You are a genuine and humble person 😀\n## 🌻 Our offer\n- €60,000 - €80,000 per annum + 10-15% bonus in equity\n- Everyone at Donut is an owner, we believe this is the way we can all win\n- Full time contract\n- Based in Berlin or remote in Europe **(CET +/- 2 hours)**\n## **👍 The perks**\n- Our team is standout: here, you'll get to work with a brilliantly forward-thinking team every day\n- By joining our Bakery as an early employee, you have unrivalled autonomy and ownership of frontend engineering at Donut\n- We have a flexible remote work policy, so if you need to work from home that's cool. We try to meet up every few weeks to maintain that personal touch\n- The opportunity to work with the most modern tech stack\n- The tools you need to do your job: your choice of laptop, productivity software and desk set-up\n- And of course, vegan donuts! \n\nPlease mention the words **OVEN ERODE CRANE** when applying to show you read the job post completely (#RMjE2LjczLjIxNi4xODA=). This is a feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they're human.\n\n \n\n#Salary and compensation\n $60,000 — $80,000/year\n \n\n#Location\nBerlin (Remote Europe)

Are you looking to join an innovative organization powering payments for the next generation of fintech and commerce innovators? Marqeta has built the world’s first open API issuer processor platform from scratch, powering prepaid, debit, and credit cards for the most recognizable names in financial technology, alternative lending, on-demand services and e-commerce. Marqeta has become the leader in payment innovation. Our company is comprised of a team of industry experts, a dynamic approach to working on challenging problems, and an open environment and culture that is focused on ideas and innovation.\n\nNot only do we have an inspiring and innovative culture, but only Marqeta can offer you a chance to help redefine the payments industry. As a testament to the company we've collectively built, our world-class team voted Marqeta one of the Bay Area’s Best Places to Work.\n\nMarqeta is proud of its Oakland roots and strives to build a team as diverse as the cities in which we operate. Underrepresented populations are encouraged to apply. \n\nWe are not expecting any single candidate to have an expertise under all areas of our requirements section. Please apply if you meet some but not all of the requirements.\n\n**Position Summary**\n\nMarqeta is growing a fresh Application Security Team with the goal of significantly improving industry standards in Secure Application Development in the Payments space.\n\nAs a member of the Application Security Engineer (ASE) Team, you serve as a key contributor to Marqeta’s open payments platform. This role supports the safety and security of our customer’s payments, ensuring the growth of an innovative platform that provides direct access to a strong suite of Payment Card Issuer/Processor APIs. Our long term goal is the development of a strong Product Security Program that protects the global development and deployment of payment and virtual cards as well as mobile authorization.\n\nOur ASEs define Security Engineering standards and practices around Secure Code, Continuous Delivery/Integration, Pre and Post Release S-SDLC, Verification/Validation models, Penetration Testing and innovative Security tooling designed around self-service and rich integration models.\n\nYou'll work closely with Marqeta’s Frontend and Backend Engineers, you'll contribute to critical design input for API development and service architectures, and you’ll assist the company in developing strong engineering practices in support of Product Security. Our goal is to both enhance the workflow of our engineers with security-centric tool sets and implement innovative methods of testing code in the pre-release phase.\n\nThe ideal candidate has a strong core skill set in two or more of the following areas - Automation, QE Testing, Security Engineering, REST API Design, and/or Strong Knowledge in Modern App Frameworks (esp ReactJS, Rails, or Tomcat). You’re knowledgeable and conversant in common vulnerabilities affecting modern web applications, familiar with modern cloud and datacenter based infrastructure, are looking to grow strong application security experience, and you intend to be an excellent communicator and collaborator. Our ASEs are particularly concerned with scaleable tooling strategies and strong process and practice management, which includes constant refinement in how we engage with our cross-functional team of engineers. \n\n# Responsibilities\n **Primary Responsibilities** \n* Build Self Service Tools for QE, Frontend and Backend Engineers\n* Assist with Definition, Implementation, and Maintenance of S-SDLC\n* Lead Application Security Assessments and Design Reviews\n* Execute Critical Validation/Verification Functions in Pre- and Post-Release\n* Implement SAST, DAST and Coherent Dependency Vuln Management into the Build Pipeline\n* Execute Greybox and Whitebox Application Security Assessments\n* Execute and Support HTTP/S Service-Layer Pen-Testing\n* Develop Security Training and Guidelines for Engineers\n* Build and Enhance S/W Testing Strategies with Specialized End-to-End Clients, RSpec, Puppeteer and Selenium-Based Test Cases\n* Lead Software Vulnerability Management and Risk Mitigation Practices\n* Offer Guidance and Leadership in PCI Compliance\n \n\n# Requirements\n**Requirements**\n* Demonstrable and Practical Experience in an Development or Security Engineering Role\n* You have a passion for Security and Engineering as a discipline\n* You’re an excellent communicator\n* You employ strong collaboration patterns and enjoy creating positive team dynamics\n* You know how to own and support positive outcomes\n* You remain constructive under pressure, with a flexible working style\n\n**Technical Skills**\n* Functional Development Experience in Python, Go, JS, Ruby, or Java\n* Functional Experience with Testing Frameworks and Modern Testing Paradigms (BDD, TDD, and similar)\n* Strong Knowledge of OWASP and Common Software Vulnerabilities\n* Solid Understanding of Secure Coding/Development Practices\n* Experience with Production Build Pipeline and CI/CD stacks (Ex. Jenkins, Nexus, Drone CI)\n* Demonstrable Experience with Python, Ruby, JS and/or Go Tool Development\n* Strong Interest in Automation Practices\n* Familiarity and Interest in Cloud Services and SAAS Platforms  (AWS, GCP)\n\n**Communication Skills**\n* Ability to Communicate Technical Details and Concepts Clearly\n* Strong Capacity to Speak and Act with Candor and Empathy\n\n**Nice to Have**\n* Familiarity with Java and JVM based Application Stacks (e.g. Tomcat)\n* Solid Knowledge of OAuth and SAML\n* Strong Knowledge of HTTP/S Service Architectures\n* Strong Knowledge of Transport Security, specifically TLS and CAs \n\n**Perks**\n\n* Be a member of an exceptional team - we’re growing and your career and opportunities with us will, too!\n* Rich suite of benefit plans - Employee premiums paid 100%\n* Generous Paid Time Off plan\n* Market-leading fully paid Parental Leave\n* Retirement savings - 401k plan with a Company match\n* Meaningful Equity\n* Bi-annual Hack Weeks to support and reward innovation\n* Beautiful downtown Oakland office in a great location, with stunning views of Lake Merritt\n* Conveniently located close to public transportation\n* Open, transparent culture that includes weekly All Hands meetings, Lunch-and-Learns, all-company offsite, etc.\n* Commuter and Parking monthly subsidy\n* Access to corporate gym membership rates and other discounts and employee perks!\n* Fully stocked kitchen, catered lunches twice a week, breakfast on Fridays, and more! \n\nPlease mention the words **DIVORCE FRIEND DILEMMA** when applying to show you read the job post completely (#RMjE2LjczLjIxNi4xODA=). This is a feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they're human.\n\n \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to JavaScript, InfoSec, Java, Python, Ruby, Golang, Engineer, Cloud, API, Mobile and Backend jobs that are similar:\n\n $70,000 — $120,000/year\n

Are you looking to join an innovative organization powering payments for the next generation of fintech and commerce innovators? Marqeta has built the world’s first open API issuer processor platform from scratch, powering prepaid, debit, and credit cards for the most recognizable names in financial technology, alternative lending, on-demand services and e-commerce. Marqeta has become the leader in payment innovation. Our company is comprised of a team of industry experts, a dynamic approach to working on challenging problems, and an open environment and culture that is focused on ideas and innovation.\n\nNot only do we have an inspiring and innovative culture, but only Marqeta can offer you a chance to help redefine the payments industry. As a testament to the company we've collectively built, our world-class team voted Marqeta one of the Bay Area’s Best Places to Work.\n\nMarqeta is proud of its Oakland roots and strives to build a team as diverse as the cities in which we operate. Underrepresented populations are encouraged to apply. \n\nWe are not expecting any single candidate to have an expertise under all areas of our requirements section. Please apply if you meet some but not all of the requirements.\n\n**Position Summary**\n\nMarqeta is growing a fresh Application Security Team with the goal of significantly improving industry standards in Secure Application Development in the Payments space. We are based in Oakland, California but are open to remote engineers for this role!\n\nAs a member of the Application Security Engineer (ASE) Team, you serve as a key contributor to Marqeta’s open payments platform. This role supports the safety and security of our customer’s payments, ensuring the growth of an innovative platform that provides direct access to a strong suite of Payment Card Issuer/Processor APIs. Our long term goal is the development of a strong Product Security Program that protects the global development and deployment of payment and virtual cards as well as mobile authorization.\n\nOur ASEs define Security Engineering standards and practices around Secure Code, Continuous Delivery/Integration, Pre and Post Release S-SDLC, Verification/Validation models, Penetration Testing and innovative Security tooling designed around self-service and rich integration models.\n\nYou'll work closely with Marqeta’s Frontend and Backend Engineers, you'll contribute to critical design input for API development and service architectures, and you’ll assist the company in developing strong engineering practices in support of Product Security. Our goal is to both enhance the workflow of our engineers with security-centric tool sets and implement innovative methods of testing code in the pre-release phase.\n\nThe ideal candidate has a strong core skill set in two or more of the following areas - Automation, QE Testing, Security Engineering, REST API Design, and/or Strong Knowledge in Modern App Frameworks (esp ReactJS, Rails, or Tomcat). You’re knowledgeable and conversant in common vulnerabilities affecting modern web applications, familiar with modern cloud and datacenter based infrastructure, are looking to grow strong application security experience, and you intend to be an excellent communicator and collaborator. Our ASEs are particularly concerned with scaleable tooling strategies and strong process and practice management, which includes constant refinement in how we engage with our cross-functional team of engineers.\n\n\n# Responsibilities\n **Primary Responsibilities**\n* Build Self Service Tools for QE, Frontend and Backend Engineers\n* Assist with Definition, Implementation, and Maintenance of S-SDLC\n* Lead Application Security Assessments and Design Reviews\n* Execute Critical Validation/Verification Functions in Pre- and Post-Release\n* Implement SAST, DAST and Coherent Dependency Vuln Management into the Build Pipeline\n* Execute Greybox and Whitebox Application Security Assessments\n* Execute and Support HTTP/S Service-Layer Pen-Testing\n* Develop Security Training and Guidelines for Engineers\n* Build and Enhance S/W Testing Strategies with Specialized End-to-End Clients, RSpec, Puppeteer and Selenium-Based Test Cases\n* Lead Software Vulnerability Management and Risk Mitigation Practices\n* Offer Guidance and Leadership in PCI Complianc \n\n# Requirements\n**Requirements**\n* 3-5 yrs Demonstrable and Practical Experience in Application Security Engineering or Comparable Experience in a Security Engineering Role\n* You have a passion for Security Engineering as a discipline\n* You’re an excellent communicator\n* You employ strong collaboration patterns and enjoy creating positive team dynamics\n* You know how to own and support positive outcomes\n* You remain constructive under pressure, with a flexible working style\n* Functional Development Experience and Proficiency in Python, Go, JS, Ruby, or Java\n* Familiarity with Java and JVM based Application Stacks (e.g. Tomcat)\n* Functional Experience with Testing Frameworks and Modern Testing Paradigms (BDD, TDD, and similar)\n* Solid Knowledge of OAuth and SAML\n* Strong Knowledge of HTTP/S Service Architectures\n* Strong Knowledge of Transport Security, specifically TLS and CAs\n* Strong Knowledge of OWASP and Common Software Vulnerabilities\n* Solid Understanding of Secure Coding/Development Practices\n* Experience with Production Build Pipeline and CI/CD stacks (Ex. Jenkins, Nexus, Drone CI)\n* Familiarity with Container Technology (Ex. Docker, RKT)\n* Demonstrable Experience with Python, Ruby, JS and/or Go Tool Development\n* Strong Interest in Automation Practices\n* Familiarity and Interest in Cloud Services and SAAS Platforms  (AWS, GCP)\n* Familiarity with Terraform and Ansible Automation Stac\n\n**Perks**\n* Be a member of an exceptional team - we’re growing and your career and opportunities with us will, too!\n* Rich suite of benefit plans - Employee premiums paid 100%\n* Generous Paid Time Off plan\n* Market-leading fully paid Parental Leave\n* Retirement savings - 401k plan with a Company match\n* Meaningful Equity\n* Bi-annual Hack Weeks to support and reward innovation\n* Beautiful downtown Oakland office in a great location, with stunning views of Lake Merritt\n* Conveniently located close to public transportation\n* Open, transparent culture that includes weekly All Hands meetings, Lunch-and-Learns, all-company offsite, etc.\n* Commuter and Parking monthly subsidy\n* Access to corporate gym membership rates and other discounts and employee perks!\n* Fully stocked kitchen, catered lunches twice a week, breakfast on Fridays, and more! \n\nPlease mention the words **PREPARE SYMBOL BURST** when applying to show you read the job post completely (#RMjE2LjczLjIxNi4xODA=). This is a feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they're human.\n\n \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to JavaScript, InfoSec, Java, Python, Ruby, Golang, Engineer, Cloud, API, Mobile and Backend jobs that are similar:\n\n $70,000 — $120,000/year\n