Principal Software Engineer
Share
Job Location:
Monthly Salary:
Posted on:
Vacancies:
Job Summary
Why Verifone
For more than 40 years Verifone has established a remarkable record of leadership in the electronic payment technology industry. Verifone has one of the leading electronic payment solutions brands and is one of the largest providers of electronic payment systems worldwide.
Verifone has a diverse dynamic and fast paced work environment in which employees are focused on results and have opportunities to excel. We take pride in the fact that we work with leading retailers merchants banks and third party partners to invent and deliver innovative payments solution around the world. We strive for excellence in our products and services and are obsessed with customer happiness. Across the globe Verifone employees are leading the payments industry through experience innovation and an ambitious spirit. Whether its developing the next platform of secure payment systems or searching for new ways to bring electronic payments to new markets the team at Verifone is dedicated to the success of our customers partners and investors. It is this passion for innovation that drives each one of our employees for personal and professional success.
Verifone is proudly an in-office work culture as we see immense benefits to career development and business results from our colleagues being physically co-located. Currentlywe do allow a hybrid work schedule but we regularly revisit our attendance policy.
About The Role
We are seeking aPrincipal Software Engineer based in Londonto provide technical leadership across backend services supporting our global payment gateway system. You will design and evolve core platform capabilities guide architectural decisions across microservices and mentor engineers while remaining handson with critical systems built using Java and Spring Boot.
This role sits at the heart of Verifones global payment gateway platform. You will help shape the technical direction of systems responsible for processing highvolume missioncritical financial transactions worldwide.
At this level the role goes beyond feature delivery. You will drive architectural decisions set engineering standards and influence how teams design build and operate secure scalable backend systems. Success in this role is defined by technical leadership sound judgment in complex tradeoffs and ownership of systems that must perform reliably under realworld load and regulatory constraints.
You will work closely with senior engineering platform product and infrastructure partners to ensure our systems scale globally remain secure and meet the highest standards for availability and performance.
Required Skills and Experience Needed
Programming Languages
- Java 17 or higher
Frameworks and Libraries
- Spring Boot
- Spring Web(REST APIs)
- Spring Data
- Spring SecuritywithJWT / OAuth2
Architecture & System Design
- Deep experience designing and operatingmicroservicebased architectures
- Strong application of clean code practices andSOLIDprinciples
- Ownership of systemlevel architecture and crossservice design decisions
- Strong understanding of security authentication flows and data protection in distributed systems
API & Data
- Design and governance ofRESTful APIs JSON and HTTP standards
- API versioning and backwardcompatibility strategies
- MongoDB / NoSQLexpertise including:
- Data modeling
- Indexing strategies
- Performance optimization
- Advanced experience with Java concurrency streams and performance tuning
Cloud & Infrastructure
- AWS services includingEC2ECS/EKSS3RDS and/or DynamoDB andCloudWatch
- Dockerand containerized deployments
- CI/CD pipelines and Gitbased workflows
- Experience designing systems for scalability resilience and operability
Testing & Engineering Practices
- Strong unit and integration testing practices usingJUnitandMockito
- Ownership of quality standards testability and CI discipline
- Experience working inAgile / Scrumenvironments and influencing engineering best practices
Experience Level
- Principallevel backend engineering experience building and operating largescale highperformance systems
- Approximately 8 years of backend development experience with several years working on production Java and Spring Boot services
- Proven experience owning architecture and technical direction for critical backend platforms
- Extensive production experience withMongoDB including modeling indexing and performance optimization
Bonus Skills and Experience
Payments & Domain Expertise
- Background infintech or payments
- Experience with payment processing transactions and financial data
- Strong understanding of highavailability security and dataconsistency tradeoffs
Eventing & Distributed Systems
- Experience witheventdriven architectures
- Messaging or streaming technologies such as:
- Kafka
- AWS SQS
- Similar eventing systems
Platform & Technical Leadership
- Deep experience with AWS Docker and CI/CD practices
- Proven ability to mentor engineers and raise the technical bar across teams
- Strong sense of ownership for systems running in production
Our Commitment
Verifone is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race color religion gender gender identity or expression sexual orientation national origin genetics disability age or veteran status. Verifone is also committed to compliance with all fair employment practices regarding citizenship and immigration status.
Required Experience:
Staff IC
