Senior Full-Stack Software Engineer

Shift4 (NYSE: FOUR) is boldly redefining commerce by simplifying complex payments ecosystems across the world. As the leader in commerce-enabling technology, Shift4 powers billions of transactions annually for hundreds of thousands of businesses in virtually every industry. For more information, visit www.shift4.com. SENIOR FULL-STACK SOFTWARE ENGINEER (Backend-focused) Job description The new team member will join an ambitious team: the Partner Portal team, which develops and maintains a self-service for Shift4’s commercial teams (both internal sales and external partners). This portal supports sales, customer service and support, merchant portfolio management, and several internal divisions, including L&D, Marketing, and Finance. It has been operating successfully since 2021 in the American market, and expansion into Europe has just begun - opened in the 14 markets and +9 on the way this year). Our Current Strategic Priorities Include: International Expansion (Europe, Australia, etc.) Legacy Systems Replacement Integration with Newly Acquired Companies Value-Added Services Support Responsibilities: Collaborate cross-functionally with Business Analysts, QA, and other team members to achieve elegant solutions which satisfy business needs, goals, and objectives; Work alongside other Software Engineers on the team to elevate technology and consistently apply best practices as they relate to the project and general software engineering concepts; Participate in and make improvements in continuous improvement of development processes, technical solutions. Test code via unit, integration and acceptance testing techniques to ensure delivery and quality goals are met; Diagnose and resolve issues with deployed systems using a variety of techniques including direct engagement with support personnel and customers; Participate (sometimes facilitate) Tech grooming and/or requirements gathering/validation sessions Requirements: Experience working with application building / programming Solid experience working with backend development (would be great 5+ years) Experience working with integrations, APIs, can write raw SQL, databases Experience working with systems maintenance Be familiar with agile software development lifecycle (SDLC) Ability independently perform technical analysis with proactive communication / contacting team members or other related squads Be flexible and demonstrate the ability to execute on deadlines Experience working in an international context and solid English (written and spoken) Technical stack includes: Programming Languages: TypeScript, JavaScript Backend Framework: NestJS Frontend Technologies: Experience with JavaScript frameworks React Database: Experience with SQL databases (PostgreSQL, MSSQL etc.) ORM: TypeORM Version Control: Git Containerization: Docker Testing: Jest for unit and e2e testing, nice to have - Cypress (for end-to-end testing) or Vitest (for unit and integration testing), Testing Library (React) Styling: Tailwind CSS (version 3.2.4), PostCSS Linting and Formatting: ESLint, Prettier, Stylelint Nice to have - build Tools: Vite (as the project bundler and dev server), Rollup (implied by Vite ecosystem) Other Skills: Experience with Node.js and npm (must) Familiarity with Redis caching Understanding of RESTful APIs and microservices architecture (must) Experience with Continuous Integration/Continuous Deployment (CI/CD) pipelines Proficiency in frontend development tools and libraries (e.g., Storybook, SWC, Axios, React Router, Lexical, ReactQuery, LogRocket, MSW, Joi and etc.) Experience with: DataDog, Sentry, Twilio, DocuSign Experience with event-streaming software/architectures (Kafka, etc) Additional benefit if candidate: Had ever had to work on an integration with SalesForce Has knowledge of AWS services Benefits: A growing innovative company Social Responsibility Initiatives (such as Volunteering days; Blood donation; Contribution to various charitable causes) Office canteen with subsidized prices exclusively for employees, and a wide choice of Snacks/Soft drinks Office in the city center with parking for cars, bicycles, and scooters Private health insurance Employee accident insurance Additional vacation days based on tenure Bonuses for the achieved results Employee referral program IIIrd Pillar Pension Fund contribution Gifts for special occasions The salary range for this position is starting at 5700-6500 Eur Gross. The exact salary will be determined based on the candidate’s experience. We are an Equal Opportunity Employer and do not discriminate against any employee or applicant for employment because of race, color, sex, age, national origin, religion, sexual orientation, gender identity and/or expression, status as a veteran, and basis of disability or any other federal, state or local protected class.