Lead Software Engineer (Java, Python, Go)

Mastercard; Ireland; On-site; EUR 120,000 - 150,000; Full time

Job summary

Mastercard seeks an experienced software architect to lead the modernization of fraud rules engines and oversee large-scale migrations. You will collaborate with cross-functional teams to understand requirements and provide technical thought leadership.

Drive engineering excellence, mentor developers, and ensure designs align with security, compliance, and business needs. Proficiency in Go, Python, and Java across various frameworks is essential.

Qualifications

• 8+ years in software and micro-services architecture.
• Experience with fraud rule engines.
• Hands-on with design patterns and multiple languages.
• Strong communication and leadership skills.
• Familiar with GenAI/LLMs and AI technologies.
• Experience building scalable, high-availability platforms.

Responsibilities

• Lead the modernization of platforms related to Fraud Rules/Engines and large-scale migrations.
• Collaborate with cross-functional teams to understand requirements, identify solutions, and provide technical thought leadership.
• Ensure project designs comply with architectural standards, policies, and best practices.
• Align solution designs with business needs, infrastructure capabilities, and security & compliance requirements.
• Drive engineering excellence and lead PoC/Pilot projects.
• Assist with scoping, sizing, prioritizing, planning, and estimation.
• Mentor development teams on industry best practices.
• Hands-on experience with AI technologies related to fraud rules.
• Build and operate scalable global platforms with high throughput and 5-9s availability.
• Proficient in multiple languages including Go, Python, and Java.

Skills

Leadership

Software architecture

Cross-functional collaboration

Go

Python

Java

DevOps

Security & compliance

Fraud domain knowledge

Mentoring

Education

Bachelor's degree in IT/CS

Tools

Go

Python

Java

Git

Kubernetes

Job description

• Lead the modernization of platforms especially related to Fraud Rules/Engines and proven experience in large-scale migrations
• Collaborate, influence and work with cross functional teams to understand the requirements, identify solutions and provide technical thought leadership
• Ensure project implementation(s) are compliant with solution architectural design, established architectural patterns (where applicable), policies, standards, and best practices
• Ensure that solution architectural designs are aligned with business needs, infrastructure capabilities, and security & compliance requirements
• Drive a culture of engineering excellence - Leading software development projects, especially at an early stage(PoC, Pilot)
• Assist with project scoping, sizing, prioritizing, planning, and estimation
• Mentor development team on industry best practices
• Familiarity with AI technologies like Gen AI, LLMs relevant to Fraud Rules
• Hands on experience implementing design patterns and using multiple programming languages
• Experience building and operating scalable global platforms with highthroughput, low latency with 5 9's availability

Hands-on Software development experience. 8+ years in Software and micro-services architecture. Familiar with dev ops and IT Operations best practicesDrives outcomes through strong commitment to timely delivery of key objectivesCurrent understanding of best practices regarding application & system securityHave strong decision-making skills, lead retrospection and continually improve as a resultHands-on technical leader who consistently demonstratesleadership,builds trust, focuses on talent development and inspires the teamUnderstanding of loosely coupled and stateless systemsFinancial Domain preferable Banking DomainStrong communication skills - both verbal and written - with strong relationship building, collaborative skills and organizational skillsSuccess with producing high quality project design deliverables and documentationDemonstrated track record with highly scalable, distributed systemsFamiliarity with performance tuning, designing for failure & automationBe a bar raiser with working experience across a variety of languages and frameworks, love declarative paradigm and functional programmingMinimum bachelor's degree in information technology, Computer Science or extensive work experienceExtensive experience with databases: Relational & NoSQLHave a passion for continuous learning and enjoy challenging opportunitiesMust be high-energy, detail-oriented and proactive with the ability to function under pressure in an independent environmentCan write high quality, secure and clean code in multiple programming languages (e.g., Go, Python, Java)Strategic Leader who has expertise with Fraud Rule Engines and proven experience in large-scale migrationsMust have expert level knowledge of software development processes and be an experienced user of one or more Application Lifecycle Management tools