✦ Luna Orbit — Software Engineering

Senior Software Engineer

at Fiserv

Unknown Posted March 19, 2026
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Position Details

Type Not Specified
Experience mid
Exp. Years 4+ years
Education Bachelor's degree in Computer Science, Engineering, or a related field
Category Software Engineering

About this role

This role involves developing and maintaining scalable, high-availability payment processing applications using modern cloud services and technologies. The engineer will collaborate with stakeholders to deliver secure and reliable financial transaction solutions.

Key Responsibilities

  • Deliver enterprise-grade payment solutions
  • Collaborate with stakeholders
  • Design, code, and integrate new functionalities
  • Ensure security and compliance
  • Build scalable, fault-tolerant systems

Technical Overview

The environment includes cloud platforms like AWS and GCP, with a focus on object-oriented programming, distributed systems, REST APIs, and high availability architectures in payment processing.

Ideal Candidate

The ideal candidate is a mid-level software engineer with at least 4 years of experience in object-oriented programming, distributed systems, and cloud services like AWS and GCP. They are proficient in .NET, C#, REST APIs, and Microsoft SQL, with a strong understanding of high availability payment systems.

Must-Have Skills

4 years in software developmentObject-oriented languagesDistributed systemsAWS and GCP servicesHigh availability and scalable payment applicationsWorking in .NETC#REST APIsMicrosoft SQLAgile methodologiesTCP/IP and Socket ProgrammingAsynchronous Multithreaded architecture

Tools & Platforms

AWSAmazon Web ServicesGCPGoogle Cloud Platform.NETC#REST APIsMicrosoft SQL

Required Skills

Object-oriented programmingAWSAmazon Web ServicesGCPGoogle Cloud Platform.NETC#REST APIsMicrosoft SQLAgile methodologiesTCP/IPSocket ProgrammingAsynchronous Multithreaded architecture

Hard Skills

Object-oriented programmingAWSAmazon Web ServicesGCPGoogle Cloud Platform.NETC#REST APIsMicrosoft SQLAgile methodologiesTCP/IPSocket ProgrammingAsynchronous Multithreaded architecture

Soft Skills

CollaborationRequirement gatheringDesignCode reviewProblem solvingTeamworkCommunication

Industry & Role

Industry Fintech
Job Function Develop scalable, high-availability payment processing applications
Role Subtype Software Developer
Tech Domains Amazon Web Services, Google Cloud Platform, .NET, C#, REST APIs, Microsoft SQL

Keywords for Your Resume

software engineerC#.NETREST APIsMicrosoft SQLAWSAmazon Web ServicesGCPGoogle Cloud Platformdistributed systemshigh availabilityscalable payment processingobject-oriented programmingagile methodologiesTCP/IPsocket programmingmultithreaded architecture

Deal Breakers

Less than 4 years of experience, Lack of experience with AWS or GCP, No experience in payment processing

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