galaxy venture portfolio, portfolio company, venture investing, stage-agnostic, investments, protocols, scaling solutions, DeFi, web3, infrastructure,

Galaxy Ventures

Portfolio Jobs

Apply to jobs in the Galaxy Ventures portfolio.

Senior Golang Engineer



Other Engineering
Prague, Czechia
Posted on Friday, May 24, 2024

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 Golang Engineer SessionM, a Mastercard Company, is a customer engagement platform empowering global brands to forge stronger and more profitable customer relationships. We partner with brands to drive marketing transformation through innovative technology and services. We are headquartered in Boston with offices around the world including Prague.


SessionM, a Mastercard company seeks a Senior Golang Developer who will be a crucial part of our software team. The selected candidate will have to write scalable, robust, and easy-to-maintain code, and will be required to translate software requirements into high-performance products. You will also be actively involved in researching new technologies/tools that can be incorporated to improve the current system. Should be 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


• 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
• Drive code/design/process trade-off discussions within their team when required
• Report status and manage risks within their primary application/service
• Drive 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
• Drive adoption of 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

All About You:

• Intermediate level of expertise in Golang development/ Software engineering
• Proficiency in Infrastructure as code such as Terraform, Cloud Formation or CDK
• Familiarity in CI/ CD pipelines such as Gitlab , Jenkins etc…
• Experience with cloud technologies such as AWS, GCP, Azure
• Experience in Linux dev. Additional Windows experience is a plus
• Experience designing, implementing, and maintaining scalable fault tolerant low latency, high throughput OLTP platforms
• Understands the basic engineering principles used in building and running mission critical software capabilities (security, customer experience, testing, operability, simplification, service-oriented architecture)
• Understands internals of operating systems (Windows, Linux) to write interoperable and performant code
• Able to perform debugging and troubleshooting to analyze core, heap, thread 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
• 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)

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.