Full Stack Software Engineer (Senior)

Xe.com; Alcobendas; Híbrido; EUR 65.000 - 80.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Annual bonus

ESPP

Car allowance

Meal vouchers

Hybrid work 2 days WFH

25–30 days leave

Birthday off

Wellbeing weeks

Relocation support

Descripción de la vacante

Xe is seeking a senior full-stack engineer to own real problems end-to-end, from API design through frontend to backend services, and to lead delivery of customer-facing features. You will move money in production and shape the platform stack in a small team with direct access to product, design, and compliance.

You’ll own architecture in your domain, lead design reviews, mentor mid-level engineers, and partner with architects to drive cross-domain decisions, while using AI tools daily across

Formación

• 6–10+ years building production web applications.
• Frontend proficiency with Vue.js/React.
• Backend proficiency in C#/.NET; other OOP welcome.
• Strong SQL and relational databases.
• Writing and maintaining tests.
• Experience with AWS, CI/CD, and modern deployment patterns.
• System design and microservices experience.
• Payments or regulated industry experience.
• Leadership: mentoring and architecture decisions.

Responsabilidades

• Design and own features across the stack that move money and manage multi-currency balances, onboarding, KYC, and payments.
• Lead delivery of customer-facing features from UI to services behind them.
• Own production health, reliability, observability, on-call, and incident response.
• Lead cross-functional delivery with product, design, and compliance from problem framing through launch.
• Mentor mid-level engineers and participate in design reviews and domain architecture decisions.
• Leverage AI tools daily across the SDLC and modernize legacy services with architects.

Conocimientos

Vue/React

C#/.NET

SQL

Testing

AI tooling (Copilot)

AWS/CI-CD

System design

Payments domain

Technical leadership

Cross-functional collaboration

Herramientas

Jira

Confluence

Postman

Bruno

Descripción del empleo

Description

About Xe

Xe is a cross-border payments platform. We help SMEs and consumers in the US, UK, Canada, Australia, and New Zealand collect, convert, hold, and send money across markets. Each year, over 300 million people use Xe for currency information and over 350,000 use us to send money overseas.

Today, we're rebuilding the platform layer behind cross-border payments for corporate and consumer clients. We're small enough that your code ships fast and your decisions matter, and Euronet Worldwide (Nasdaq: EEFT) backs us so the problems stay real-scale.

About This Role

We're hiring a senior full-stack engineer who owns real problems end-to-end and shapes how the team builds, from API design and frontend experience through to backend services, production reliability, and launch. You already use AI as part of how you think, build, test, and ship.

You’ll write code that moves money in production, design and modernize the platform across the stack, and lead delivery of customer-facing features as Xe rebuilds its platform layer. You'll work in a small engineering team with direct access to product, design, and compliance, own architecture in your domain, lead design reviews, mentor mid-level engineers, and partner with architects and team leads on cross-domain decisions.

What You'll Do

• Design and own features across the stack that move money and manage multi-currency balances across a range of domains, including onboarding, KYC and KYB, payment initiation, FX, settlement, and other supporting services.
• Lead delivery of customer-facing features that customers use every day, from the interface through to the services behind them.
• Own production health for your domain, including reliability, observability, on-call, and incident response.
• Lead cross-functional delivery with product, design, and compliance from problem framing through launch.
• Lead design reviews, set technical direction for your domain, and mentor mid-level engineers.
• Use agentic coding tools (Copilot, Cursor, Claude Code, or equivalent) daily across the SDLC, and lead modernization from legacy services into the modern stack alongside architects and team leads in your domain.

What We're Looking For

Must-have

• 6 to 10+ years building production web applications, end-to-end.
• Strong frontend proficiency with Vue.js, React, or equivalent.
• Strong backend proficiency in C# / .NET preferred; other OOP languages welcome (Java, Kotlin, Go, or equivalent).
• Solid SQL and relational database fundamentals.
• Writing and maintaining tests as part of how you ship.
• Daily use of agentic coding tools (Copilot, Cursor, Claude Code, or equivalent) across the SDLC.
• Production experience on AWS, including hands-on deployment, CI/CD pipelines and modern deployment practices, and native services such as SQS, DynamoDB, S3, ECS, and Lambda.
• Strong system design and architecture experience, including service-oriented or microservices and event-driven patterns.
• Payments, FX, or regulated-industry experience.
• Track record of technical leadership: mentoring engineers, leading design reviews, and making architecture decisions in your domain.
• Strong communication and collaboration across engineering, product, and design.

Nice-to-have

• Frontend fundamentals: responsive design, accessibility, web performance, and internationalization.
• Experience leading front-end or platform modernization and migrations.
• Experience with caching solutions like Memcached or Redis.
• Experience using project management and documentation tools like Jira and Confluence.
• Knowledge of API testing tools such as Postman or Bruno.
• Writing automated tests alongside development with AI tools (Claude Code or equivalent).

Perks & Benefits

• Annual performance-related rewards: performance-based annual bonus
• Employee Stock Purchase Plan (ESPP): open to all employees
• Car allowance: monthly car allowance (subject to Direction Level)
• Meal vouchers: 8€ per working day
• Preferential currency exchange rates: exclusive rates for employees
• Money transfer discounts: special discounts on transfers
• Annual salary review: performance-based process
• Hybrid working model: 2 days per week WFH with flexible scheduling
• Extended vacation allowance: 25-30 days annual leave
• Extra bank holidays: additional company-recognised holidays
• Birthday off: fully paid day off
• Annual employee recognition events: HEROES awards & seniority recognitions
• Annual social events: end-of-year celebration & regional/departmental gatherings
• Seasonal celebrations: Halloween, New Year, Christmas, and other festivities
• Volunteer days & CSR initiatives: Save the Children, environmental actions, food bank donations, and more
• Employee wellness weeks: global and local wellbeing activities
• Leadership training: internal and external learning opportunities
• Cross-functional project opportunities: available based on skills and project needs
• Internal & international mobility: relocation support and coaching for career development

XE offers a competitive salary and benefits package. The reasonable estimated pay for this role ranges from 65,000 EUR to 80,000 EUR. Actual compensation is based upon factors such as the candidate's skills, qualifications, and experience.

We want Xe to be a great place to work and to ensure that our communities are represented across our workforce. A vital part of this is ensuring we are a truly inclusive organization that encourages diversity in all respects.

Xe is an Equal Employment Opportunity employer. All qualified applicants will be considered for employment regardless of age, national origin, race, color, disability, religion, sexual orientation, gender identity or expression, or any other characteristic protected under applicable law. We are committed to providing reasonable accommodations to qualified individuals with disabilities. If you need assistance or an accommodation due to a disability, you may contact us at [e-mail].

The position responsibilities outlined above are intended to define the general contents and requirements to perform this job. It is not to be taken as a complete statement of responsibilities or requirements. This job description does not restrict the Company's right to assign or reassign duties and responsibilities to this job as needed.