Senior Java Backend Engineer jobs in Waltham

A VC-backed startup is seeking founding engineers to build and own the product from backend to frontend. Candidates should have over 5 years of backend engineering experience and must be authorized to work in the US. The role offers a hybrid work model with 4 days in the office in Cambridge, MA, alo

WEX

Note: Candidates should be based in the NYC/NJ area. About the Team/Role We are the WEX Fleet Services team, dedicated to building modern API interfaces for WEX's industry-leading fuel card platform. We are defining and creating APIs for both internal and external customers, and we're at the forefro

At WHOOP, we’re on a mission to unlock human performance and healthspan. WHOOP empowers members to perform at a higher level through a deeper understanding of their bodies and daily lives. Our wearable technology monitors vital physiological metrics to offer personalized insights that enhance fitnes

CommuniTech Recruitment Group

Junior Software Engineer. C# or Java. Boston. Investment Bank. $60,000 - $80,000+ Bonus and Benefits. 5 Days a week in office. Only US Citizens or Permanent residents. My client is an investment bank based in Boston. They are looking for several Junior Engineers. The team is modernizing the banks le

At WHOOP, we’re on a mission to unlock human performance and healthspan. WHOOP empowers members to perform at a higher level through a deeper understanding of their bodies and daily lives. Our wearable technology monitors vital physiological metrics to offer personalized insights that enhance fitnes

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. Join the Credit Engineering group and partner with Product and Credit Risk to solve complex challenges on how to protect consum

At WHOOP, we’re on a mission to unlock human performance and healthspan. WHOOP empowers members to perform at a higher level through a deeper understanding of their bodies and daily lives. Our wearable technology monitors vital physiological metrics to offer personalized insights that enhance fitnes

Join us as we work to create a thriving ecosystem that delivers accessible, high-quality, and sustainable healthcare for all. Role Summary Lead the design, delivery, and operational excellence of production-grade backend services that support mission-critical workflows. This is a hands-on engineerin

CommuniTech Recruitment Group

Java Engineer. Boston. Investment Bank. $120,000 - 160,000 + Bonus and Benefits. 5 Days a week in office. Only US Citizens or Permanent residents. Can not sponsor visas now or in the future. My client is an investment bank based in Boston. They are looking for several Mid-Senior Engineers that have

Basic Qualifications Requires a Bachelor’s degree in Software Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience. Agile experience preferred. CLEARANCE REQUIREM

WHOOP

At WHOOP, our mission is to unlock human performance and healthspan. Our enterprise platform helps organizations across athletics, business, healthcare, and public service better understand and support the health and performance of their teams. WHOOP Enterprise is entering a new phase of growth and

At Laminar (formerly H2Ok Innovations), we're leading the charge in cleantech innovation, reshaping process industrials and manufacturing to drive operational efficiency and sustainability for our world’s most foundational industries. Powered by our Laminar AI Co-pilot models and state-of-the-art se

At Laminar (formerly H2Ok Innovations), we're leading the charge in cleantech innovation, reshaping process industrials and manufacturing to drive operational efficiency and sustainability for our world’s most foundational industries. Powered by our Laminar AI Co-pilot models and state-of-the-art se

Location: Waltham, MA (hybrid) ERGO NEXT’s mission is to help entrepreneurs thrive. We’re doing that by building the only technology-led, full-stack provider of small business insurance in the industry, taking on the entire value chain and transforming the customer experience. Simply put, wherever y

Job Description: Role Overview We are seeking an experienced Java Backend Engineer to design, develop, and maintain scalable backend systems. The ideal candidate will have strong expertise in Java, Spring Boot, and API development , along with exposure to cloud environments and production deployment

A company is looking for a Backend Engineer (Mid-Level) to work on their data pipeline, infrastructure, and deployment systems. Key Responsibilities Build and extend data ingestion workflows and audience segmentation in Python Provision and maintain AWS resources using Terraform Manage deployments a

Category/Area of Expertise: IT & Technology Job Requisition: 491376 Address: USA-MA-Quincy-1385 Hancock Street Store Code: Sltns Dvlpmnt-Engmnt-Mrkt & Dipla (5167803) Ahold Delhaize USA, a division of global food retailer Ahold Delhaize, is part of the U.S. family of brands, which includes five lead

Hopper

$150,000 - $250,000 /year

About The Job Did you know Hopper's technology powers some of the largest travel portals in the world? Our Hopper Technology Solutions (HTS) platform drives travel purchases for major global brands — from banks to airlines to fintech leaders. This platform is essentially a configurable, multi-tenant

Hunter Bond

Position: Mid-Level Software Engineer Location: Boston, Massachusetts Compensation: Competitive Salary + Benefits Package Work Setup: On-Site Overview We’re working alongside a leading organisation within the fintech space to identify a talented Software Engineer for their front-office aligned team

Saxon Global

Required Skills & Experience - Strong experience with AWS services (EC2, RDS, S3, Lambda, API Gateway, etc.). - Proficiency in Node.js for backend development. - Expertise in React.js for modern frontend development. - Solid understanding and hands-on experience with MySQL and PostgreSQL (schema des