Principal Software Engineer, Mastercard
Treasury Services
Global payments technology company
Be an early applicant
Global payments technology company
1001+ employees
Be an early applicant
1001+ employees
Company mission
To connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible.
Role
Who you are
- This role is ideal for a principal-level engineer who is equally comfortable writing production code, setting architectural guardrails, partnering with Finance/Treasury stakeholders, and aligning multiple engineering teams around a cohesive platform strategy
- 10+ years in professional software engineering with 7+ years building Java services at scale
- Expert in Java, Spring / Spring Boot, Hibernate/JPA, REST/APIs, Kafka (or similar event streaming), and microservices architecture
- Proven track record integrating and extending a vendor TMS, preferably ION Reval (or similar: Kyriba, FIS Quantum, GTreasury, SAP TRM), including building robust adapters and data pipelines
- Demonstrated cross-organizational influence: leading architecture decisions, aligning multiple teams, mentoring senior engineers, and driving platform-wide standards
- Solid grasp of data modeling (relational & event schemas), transactional integrity, idempotency, eventual consistency, and distributed systems patterns
Desirable
- Direct experience with ION Reval or similar TMS systems to enhance corporate treasury products and services (e.g., trade import/export, valuation, accounting, payment workflows, statement ingestion, market data integration)
- Experience with financial data and treasury domain concepts: cash positioning, liquidity optimization, FX/IR hedging, intercompany loans, netting, settlements, GL/subledger integration
- Knowledge of data platforms (e.g., Kafka Streams/Flink/Spark), schema management (Avro/Protobuf/JSON Schema), and streaming ETL patterns
- Familiarity with security & compliance in financial systems (audit trails, SOX/internal controls, data retention, PII handling). Tech Stack
- Languages/Frameworks: Java 17+, Spring Boot, Spring Data, Hibernate/JPA
- Eventing/Streaming: Kafka (producers/consumers, Streams/KSQL optional)
- APIs: REST/JSON, Async/Reactive where appropriate
- Datastores: Postgres/Oracle, Redis/Cache; exposure to columnar/NoSQL a plus
- Cloud & Ops: Docker, Kubernetes, CI/CD (GitHub Actions/Jenkins), Observability, Feature Flags
- Data & Integration: Schema Registry, API/Swift connectivity, SFTP, ETL pipelines Education
- BS/MS in Computer Science or related field (or equivalent practical experience)
What the job involves
- We’re seeking a Principal Software Engineer who combines hands-on technical depth with cross-organizational influence
- You’ll be the technical SME for modernizing data flows across the treasury platforms, leading design and delivery of event-driven microservices and enabling expanded use of our Treasury Management System (TMS) to elevate automation, reliability, and real-time decision making
- Architect and implement data integration pipelines with Mastercard’s Treasury Management System (TMS) including: o Bank connectivity (APIs, Swift, host-to-host), statement ingestion, payment/settlement instructions, reconciliation. o Market data ingestion (rates, curves, credit spreads) and valuation workflows. o Trade/hedge lifecycle (creation, amendment, valuation, accounting, P&L/GL posting). o Extensibility: custom adapters, data pipelines, reference data mastering, error handling/observability patterns
- Lead end-to-end technical delivery for critical treasury capabilities (e.g., cash positioning, liquidity forecasting, hedge lifecycle management, deal capture/valuation, settlements, GL posting flows)
- Drive platform hardening: throughput, latency, operational resilience, and observability (metrics, logs, traces, SLOs)
- Define and evolve the integration architecture within Treasury Services: domain-driven, event-driven, microservices-based, secure-by-default, and API enabled
- Establish eventing patterns and schemas (Kafka topics, contracts, idempotency, exactly-once semantics where applicable) across teams; drive adoption of consumer-first and backward-compatible contracts
- Serve as a trusted technical advisor for senior engineering leaders, Finance/Treasury product owners, InfoSec, Risk, and Compliance
- Lead architecture reviews, RFCs, and design forums; mentor Staff/Senior Engineers; uplift engineering standards (testing, code quality, performance)
- Aligning multiple teams on platform roadmaps, migration/modernization plans, and incremental delivery that de-risks change
- Build for HA/DR, regional failover, runbooks, chaos testing, and fault injection
- Ensure compliance with internal controls and relevant financial reporting standards in integration patterns and data flows
Our take
Mastercard is in the global payments business, and operates the world's fastest payments processing network. Its products and solutions have become central to everyday commerce across the world, in activities ranging from shopping and travelling to running businesses.
As the economy has become more and more digitised, Mastercard has been a leading player in helping businesses and individuals across the globe embrace card payments and digital banking. One of the world's largest companies, its revenue has seen consistent gain in the last 20 years.
The challenge for modern payments companies is that payments are always changing, as seen in the astronomical rise of contactless payments over the last decade. Mastercard's acquisition of blockchain systems, and an overall focus on leveraging its technology towards a digital economy, has placed the company in good stead to keep up to date with current trends, like cryptocurrency, in the digitised payments world.
Steph
Company Specialist at Welcome to the Jungle
Insights
21% employee growth in 12 months
Company
Company benefits
- Gym membership
- Share purchase options
- Extra holiday purchase optional
- Work from home opportunities
- Health insurance
Company HQ
Purchase, Harrison, NY
Leadership
Michael Miebach
(CEO)Has served in a variety of roles at the company, including President and CPO. Currently Board Member at IBM, Accion, the World Resources Institute, the US-India Strategic Partnership Forum, and the Metropolitan Opera. They are also a Trustee of USCIB.
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