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Shift4 Payments Lithuania

Senior Full-Stack Software Engineer (Backend focused)

Shift4 Payments Lithuania
Lithuania · Full-time · Mid-Senior
Overview

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.

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 for over 2 years in the American market, and expansion into Europe has just begun.

Our Current Strategic Priorities Include

  • International development (Europe, Canada, etc.)
  • Core project advancement
  • Implementation of AI solutions
  • GDPR compliance
  • Deprecation of legacy systems

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).
  • Cutting-edge technologies and tools.
  • Office in the city center with parking for cars, bicycles, and scooters.
  • Private health insurance.
  • Employee accident insurance.
  • Additional vacation days based on tenure.
  • Annual bonuses for the achieved results.
  • Employee referral program.
  • IIIrd Pillar Pension Fund contribution.
  • Office lunch twice a week and a wide choice of Snacks/Soft drinks.
  • Gifts for special occasions.

The salary range for this position is starting at 5500 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.

Key Skills

Ranked by relevance

sql microservices restful apis javascript typescript postgresql datadog server react redis kafka cicd css aws npm ai
Login to Apply
Posted
Dec 11, 2025
Type
Full-time
Level
Mid-Senior
Location
Vilnius
Company
Shift4 Payments Lithuania

Industries

Construction Software Development IT Services IT Consulting

Categories

Engineering

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