Senior Payments Engineer — Hybrid (2 days WFH)

Lemonway; Paris; Hybrid; EUR 90,000 - 125,000; Full time

Benefits offered by this job

Office in Sentier, Paris

Hybrid 2 days WFH

Meal vouchers Swile

Alan complementary health care

Navigo/Vélib transport reimbursement

Gymlib access

Syntec RTT holidays

Job summary

Lemonway in Paris is seeking a Senior Software Engineer for the Payments Tribe to architect, implement and evolve our card payment stack and cash management platform. You will report to the Engineering Manager and collaborate with 8 engineers across 2 squads, owning features end-to-end, mentoring peers, and shaping scalable payment services in a hybrid work setup.

Join a regulated payments environment with a strong focus on reliability, security and business value, as Lemonway continues to lead

Qualifications

• 5+ years of experience in software engineering building robust, scalable applications.
• Deep architectural knowledge: DDD, Hexagonal, EDA, and CQRS.
• Strong expertise in relational databases and microservices architectures.
• Excellent communication for technical consensus across teams.
• Familiar with .NET (C#), MS SQL, RabbitMQ, Docker, and Kubernetes.
• Experience with CI/CD pipelines and Terraform IaC.
• Fluent in French and comfortable with English.
• Nice to have: AI tools in daily workflow.
• Nice to have: Payments processing in regulated environments.

Responsibilities

• Design and deliver scalable features with balanced code quality and time spent.
• Lead code and architecture reviews, enforcing best practices and decisions.
• Mentor peers to elevate engineering standards.
• Own products from specification to production issues in production.
• Deep dive into our payment ecosystem to build resilient solutions.
• Bridge technical decisions with business value to drive payment flows.
• Collaborate with software, QA and infra engineers; translate architecture to stakeholders.
• Participate in our hybrid setup with office, home and nearshore teams.
• Balance independent problem solving with guiding teammates.

Skills

5+ years experience

DDD

Hexagonal architecture

Event-Driven

CQRS

Relational databases

Microservices

Communication skills

French language

English language

AI tools

Payments domain

Tools

C#/.NET

MS SQL

RabbitMQ

Docker

Kubernetes

Terraform

CI/CD

Job description

Lemonway in Paris is seeking a Senior Software Engineer for the Payments Tribe to architect, implement and evolve our card payment stack and cash management platform. You will report to the Engineering Manager and collaborate with 8 engineers across 2 squads, owning features end-to-end, mentoring peers, and shaping scalable payment services in a hybrid work setup.

Join a regulated payments environment with a strong focus on reliability, security and business value, as Lemonway continues to lead