Senior Erlang Developer

Our Purpose

We work to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. We cultivate a culture of inclusion for all employees that respects their individual strengths, views, and experiences. We believe that our differences enable us to be a better team – one that makes better decisions, drives innovation and delivers better business results.

Title and Summary

Senior Erlang Developer

Overview
• Responsible for the analysis, design, development and delivery of software solutions
• Defines requirements for new applications and customizations, adhering to standards, processes and best practices
Responsibilities
• Participate in team prioritization discussions with Product/Business stakeholders
• Estimate and own delivery tasks (design, dev, test, deployment, configuration, documentation) to meet the business requirements
• Automate build, operate, and run aspects of software
• Code/design/process trade-off discussions within their team when required
• Develop solutions using distributed concurrent programming, software packaging and release
• Report status and manage risks within their primary application/service
• Understand and connects dot for integration of services focusing on customer journey and experience
• Perform demos/acceptance discussions in interacting with Product owners
• Understands operational and engineering experience, actively works to improve experience and metrics in ownership area
• Develop complete understanding of end-to-end technical architecture and dependency systems
• Implement technology standards and opinionated frameworks, and review coding, test, and automation work of team members
• Mentor and guide new and less-experienced team members
• Identify opportunities to improve an overall process and trim waste
• Share and seek knowledge within their Guild/Program to drive reuse of patterns/libraries/practices and enhance productivity
Experiences
• Has ability to write secure code in Erlang programming language (Java, C, C++ desirable) and familiar with secure coding standards (e.g., OWASP, CWE, SEI CERT) and vulnerability management
• Has the experience on engineering principles used in building and running mission critical software capabilities (security, customer experience, testing, operability, simplification, service-oriented architecture)
• Has experience on writing performant code with extensive knowledge on concurrency model, memory management, resiliency and fault tolerance for enterprise applications
• Has experience working on mneisa database, Erlang/OTP and RabbitMQ. Good to have knowledge on IBM MQ.
• Experience with Linux, and Solaris operating systems.
• Knowledge and understanding of docker container and AWS cloud.
• Able to perform debugging and troubleshooting to analyze logs, memory leaks, crash dumps and remove coding errors
• Understands and implements standard branching (e.g., Gitflow) and peer review practices
• Has skills in test driven and behavior driven development (TDD and BDD) to build just enough code and collaborate on the desired functionality
• Understands use cases for advanced design principles/behaviours (e.g., sup_bridge , master-slave, supervisors, gen_server, gen_event , gen_fsm, dependency injection) to implement efficient code
• Understands and implements Application Programming Interface (API) standards
• Has skills to author test code with lots of smaller tests followed by few contract tests at service level and fewer journey tests at the integration level
• Apply tools (e.g., dializer, rebar3, RedBug, others) and techniques to scan and measure code quality and anti-patterns as part of development activity
• Has skills to collaborate with team and business stakeholders to estimate requirements (e.g., story pointing) and prioritize based on business value
• Has skills to elaborate and estimate non-functional requirements, including security (e.g., data protection, authentication, authorization), regulatory, and performance (SLAs, throughput, transactions per second)
• Has skills to orchestrate release workflows and pipelines, and apply standardized pipelines via APIs to achieve CI and CD using industry standard tools (e.g., Gitlab, Github, Jenkins, AWS/Azure pipelines, others).
• Has skills to understand, report, and optimise delivery metrics to continuously improve upon them (e.g., velocity, throughput, lead time, defect leakage, burndown)
• Has skills to document and drive definition-of-done for requirements to meet both business and operational needs
• Understands how to build robust tests to minimize defect leakage by performing regression, performance, deployment verification, and release testing
• Has skills to conduct product demos and co-ordinate with product owners to drive product acceptance signoffs
• Has skills to Understands customer journeys and ensure a Mastercard good experience by continuously reducing Mean time to mitigate (MTTM) for incidents and ensuring high availability (99.95% as a starting point)

Corporate Security Responsibility

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

• Abide by Mastercard’s security policies and practices;

• Ensure the confidentiality and integrity of the information being accessed;

• Report any suspected information security violation or breach, and

• Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.