Senior Software Tester Jobs in USA

About the RoleKlaviyo is looking for a Senior Software Engineer to join the Flows Platform this role you will help build and operate the core engine that powers all automated lifecycle programs at Klaviyo. Youll play a critical part in delivering robust high-scale backend solutions that process bil...

Why You Should Join the Channel Processing TeamThe Channel Processing team has direct technical responsibility for Klaviyos most-used engagement product. It is responsible for designing building and operating highly-scalable highly-available distributed systems to process ever-increasing campaign tr...

About the teamThe Dev Accelerator team builds and operates our internal developer platform: the tools libraries and infrastructure that let 100 engineers design build test and ship products quickly and safely.We own:Developer CLI tooling a Prompt-to-Product style CLI that scaffolds services end-to-...

DunwoodyHybridJob DescriptionJoin MTech Systems Build Technology That Feeds the WorldWere tackling one of humanitys biggest challenges: feeding a growing population sustainably. Our AI-powered platform gives producers real-time insight to boost yield improve animal welfare and protect the planet.Jo...

Team Overview:The mission of the Asynchronous Processing team is to design build and operate Klaviyos high-scale event-driven backbone so that every product team can reliably move data through our systems with confidence no matter the volume. By providing opinionated self-service platforms for queue...

Why You Should Join the Email Platforms Team:The Email Platforms team at Klaviyo is building the next generation of infrastructure to support reliable scalable and performant email delivery. Our mission is to help Klaviyo reach enterprise scale by evolving and owning our email sending pipeline end-t...

Senior Software Engineer AI & Analytics Data EnablementLocation: Boston MAAs a Senior Software Engineer on Klaviyos AI & Analytics Data Enablement team youll build and own the data foundations that power our Analytics & AI engine. Youll design resilient pipelines and analytics models that turn billi...

Why You Should Join the PLS (Profiles Lists and Segments) Team:The PLS team is responsible for building and scaling the core customer data experiences at Klaviyo profiles lists and real-time segments. We own the tools that let customers understand who their users are group them into meaningful audie...

Klaviyo is growing fast and we have openings for all skill levels across all of our teams. Learn more about our engineering culture at We love tackling tough engineering problems and look for Engineers who specialize in certain areas but are passionate about building owning & scaling features end to...

At Klaviyo we value the unique backgrounds experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements....

OverviewSusquehanna is seeking a Senior Software Developer to join our HR Technology & Shared Services development team a specialized engineering group responsible for building secure scalable and business-critical platforms that support enterprise functions across the firm.This is a full-stack engi...

At Klaviyo we value the unique backgrounds experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements....

At Klaviyo we value the unique backgrounds experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements....

At Klaviyo we value the unique backgrounds experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements....

At Klaviyo we value the unique backgrounds experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements....

OverviewSusquehanna is seeking a Senior Software Developer to join our HR Technology & Shared Services development team a specialized engineering group responsible for building secure scalable and business-critical platforms that support enterprise functions across the firm.This is a full-stack engi...

Job SummaryWe are seeking three high-caliber Senior Software Engineers to join a specialized team at our clients corporate headquarters in Burlington MA. This is a 12-month remote contract (with a preference for candidates who can work onsite) focused on high-impact development within a major W...

Job SummaryWe are seeking three high-caliber Senior Software Engineers to join a specialized team at our clients corporate headquarters in Burlington MA. This is a 12-month remote contract (with a preference for candidates who can work onsite) focused on high-impact development within a major W...

Job SummaryWe are seeking three high-caliber Senior Software Engineers to join a specialized team at our clients corporate headquarters in Burlington MA. This is a 12-month remote contract (with a preference for candidates who can work onsite) focused on high-impact development within a major W...

We are looking for a Senior AWS / .NET Developer to join our team. You will help build modernize and support missioncritical data processing solutions. You will focus on .NETbased applications operating in a hybrid AWS and onprem environment with an emphasis on batch processing messagedriven archite...