Senior Software Development Engineer Jobs in Boston, NH

Join the team that brought you the Touch-Screen enabled Alexa Echo Show devices. You will find opportunities to :- Bring innovative experiences to millions of customers. - Collaborate with UX and Product owners to define customer experience and product direction. - Deliver high quality software th...

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....

Who we areZus is a shared health data platform designed to accelerate healthcare data interoperability by providing easy-to-use patient data via API embedded components and direct EHR integrations. Founded in 2021 by Jonathan Bush co-founder and former CEO of athenahealth Zus partners with HIEs and...

Join the team that brought you the Touch-Screen enabled Alexa Echo Show devices. You will find opportunities to :- Bring innovative experiences to millions of customers. - Collaborate with UX and Product owners to define customer experience and product direction. - Deliver high quality software th...

Amazon is investing heavily in building a world class advertising business operating at the intersection of retail and advertising. Amazon Advertising delivers billions of ad impressions and millions of clicks daily and is breaking fresh ground to create unique advertising experiences for hundreds o...

Who we areZus is a shared health data platform designed to accelerate healthcare data interoperability by providing easy-to-use patient data via API embedded components and direct EHR integrations. Founded in 2021 by Jonathan Bush co-founder and former CEO of athenahealth Zus partners with HIEs and...

Position Title: Senior Software EngineerAbout the Team: Profile data is the bedrock upon which Klaviyos entire product ecosystem is built. The Profiles Identity and Consent teams tackle massive distributed systems challenges operating at a breathtaking scalestoring tens of billions of records and pr...

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....

Lead Site Reliability Engineering (SRE) is what you get when you treat system operations as a software engineering problem. The mission of the Site Reliability Engineering team is to ensure uninterrupted service for Klaviyo customers and act as a force multiplier for Klaviyo product teams to deliver...

Be Klaviyos senior IC for scale you will report into a VP of Engineering and lead performance reliability multiregion and largetenant readiness. Youll drive platform-wide architectural change hunt bottlenecks and optimize systems and partner across teams to productionize improvements. Given that thi...

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 Posit we are entering an exciting new chapter of innovation. Your mission is to lead the continued evolution of our core authoring suite including Positron the RStudio IDE and Workbench into an AI-native era. Not only do we need to innovate and reimagine what our products can be in this new world...

About InvoiceCloud:InvoiceCloud is a fast-growing fintech leader recognized with 20 major awards in 2025 including USA TODAY and Boston Globe Top Workplaces multiple SaaS Awards wins for Best Solution for Finance and FinTech and national customer service honors from Stevie and the Business Intellige...

DescriptionPosition Title:Campus Development ManagerLocation:Boston MA; Ashburn VA; Dallas TXYour RoleThe Data Center Development Project Manager (DCPM) is responsible for the end-to-end development of data center facilities coordinating planning entitlements design and construction to deliver proje...

This is a hybrid position based in Boston that requires 3 days per week of office-based work at our Boston office.Owl Labs is seeking a highly skilled and motivated Senior Software Quality Assurance Engineer to join our dynamic team. The SQA Engineer will be responsible for ensuring the quality and...

Interested in working with the latest technology in the cloud computing space to impact millions of people The Joining Amazon Technology team is building innovative solutions to revolutionize the way we onboard 2.8 million Amazon new workers a year in over 60 countries. We do not depend on third par...

Interested in working with the latest technology in the cloud computing space to impact millions of people The Joining Amazon Technology team is building innovative solutions to revolutionize the way we onboard 2.8 million Amazon new workers a year in over 60 countries. We do not depend on third par...

Why You Should Join the Developer Infrastructure TeamOur core focus is empowering engineers to ship code efficiently and safely. We own the CI/CD pipelines and infrastructure automation that drastically improves developer productivity. As the Lead for this team you will define the technical roadmap...

Job Title: Senior Software Engineer - Java/React Duration: 1 Year Location: Boston MA (Remote) Job Description: We 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 (w...

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...