Senior Technical Lead - Payment Modules & Acquirer Systems

wallee; Winterthur; Hybrid; CHF 140.000 - 200.000; Vollzeit

Benefits dieser Stelle

Winterthur workplace

Flat structure

Remote 4 weeks/yr

Team events

International projects

Zusammenfassung

Wallee is a Swiss payment technology company leading the bridge between our platform and acquirers and schemes. You will lead the squad that owns our payment modules and carry every transaction from authorization to settlement.

In this dual role, you will manage engineers across Switzerland, Lithuania and Ukraine, shaping technical direction while coaching and hiring. You will ensure production quality, incident response and robust fault-tolerant services in a cloud-based, microservices

Qualifikationen

• 10+ years of software engineering experience, including 3+ years leading a team.
• A university degree in Computer Science or a closely associated discipline is required.
• Deep Java and Spring expertise. You are comfortable working inside and improving a custom framework built on top of Spring, not only greenfield projects.
• Strong command of Hibernate/JPA and relational database performance (we run PostgreSQL at high transaction volume).
• Hands-on experience with microservices: service boundaries, APIs, asynchronous messaging, failure modes and day-2 operations.
• Payment industry experience: acquirer or scheme integrations, authorization, capture, refund and chargeback flows, 3-D Secure, and PCI DSS awareness. Exposure to ISO 8583 or ISO 20022 is a plus.
• A track record of reducing technical debt in production systems without stopping delivery.
• Software architecture skills: system design, clear written decisions (ADRs), pragmatic trade-offs, and the ability to review and challenge designs from others.
• Production orientation: you have carried operational responsibility, run incidents and improved the system afterwards.
• Experience running services in the cloud. We use AWS services and Kubernetes.
• Genuine interest in people leadership: you get energy from making other engineers better.
• A builder's leadership spirit: you support the Head of Engineering, involve your peers and help the tribe and the whole company move forward together.
• You possess a fluent command of the English language.

Aufgaben

• Own the architecture and technical roadmap of the payment modules, including all acquirer and scheme integrations.
• Lead new acquirer integrations end to end: analysis, design, implementation, certification, rollout and monitoring.
• Manage technical debt deliberately in a large, mature codebase built on an in-house framework on top of the Spring Framework.
• Drive platform evolution: we run Java 21 today and will move to Java 25, and we are shifting toward event-driven, fault-isolated services.
• Set and uphold engineering standards: design reviews, code quality, automated testing, observability.
• Lead, coach and grow a squad of engineers distributed across Switzerland, Lithuania and Ukraine.
• Run regular 1:1s, give honest feedback, build development plans and actively support career growth.
• Hire and onboard new engineers together with the Head of Engineering.
• Spread knowledge deliberately through documentation, pairing and rotation, so that no module depends on a single person.
• Own production quality for your modules: monitoring, alerting, incident response and root cause analysis.
• Treat availability, correctness and traceability as features. Payments are mission critical and money movement must always be explainable.
• Provide validated estimates and technical analysis as input to our planning process (PI Planning and Definition of Ready).
• Balance new features against reliability and debt reduction, and make those trade-offs explicit to stakeholders.
• Work closely with your Product Manager on discovery, shaping and prioritization.
• Partner with the Head of Engineering on tribe-level goals, capacity and escalations.
• Build together with the other tech leads in the tribe: shared standards, cross-squad initiatives, joint problem solving.
• Interface with the architecture team and DevOps on designs, infrastructure and operational topics.
• Support customer support with technical escalations and give sales fast, honest feasibility answers.

Kenntnisse

Java

Spring Framework

Microservices

Team leadership

AWS

Kubernetes

PostgreSQL

Event-driven architecture

Ausbildung

University degree in Computer Science or a closely associated discipline

Tools

Hibernate/JPA

AWS

Kubernetes

PostgreSQL

Jobbeschreibung

Wallee is a Swiss payment technology company leading the bridge between our platform and acquirers and schemes. You will lead the squad that owns our payment modules and carry every transaction from authorization to settlement.

In this dual role, you will manage engineers across Switzerland, Lithuania and Ukraine, shaping technical direction while coaching and hiring. You will ensure production quality, incident response and robust fault-tolerant services in a cloud-based, microservices