Backend Developer Jobs

Vannevar is a defense technology company building AI to deter our adversaries. In the 21st century, conflict moves at algorithmic speed and foresight equals firepower. Our agentic AI is purpose-built to compete with China—from cross-Strait conflict to gray zone coercion. Trained on the most mi

Objective of the Role Develop medium-complexity software components using the backend environment, including tools and microservices-based applications. Design and implement efficient and scalable solutions, ensuring code integrity and quality. Collaborate with other team members to achieve project

About Tailscale Tailscale is making safe connection effortless by delivering software that makes it easy to securely interconnect people and their devices, no matter where they are. From hobbyists to multinational corporations, teams of every size use Tailscale each day to protect their networ

Squarespace Dublin is seeking a Senior Backend Engineer for our Databases team within Infrastructure Foundations. This is a critical role responsible for ensuring Squarespace's infrastructure operates seamlessly and reliably for our product engineering stakeholders and millions of customers. You'll

Roadie, a UPS company, is a leading logistics and delivery platform that helps businesses tackle the complexities of modern retail with unmatched delivery coverage, flexibility and visibility. Reaching 97% of U.S. households across more than 30,000 zip codes — from urban hubs to rural communities —

About Altruist Altruist is transforming the multi-trillion dollar wealth management industry by building an AI platform for wealth professionals. We partner with financial advisors nationwide, empowering them to grow, optimize time and resources, and deliver superior outcomes for their clients. We'r

Camunda is the enterprise platform for agentic orchestration, enabling organizations to coordinate AI agents, people, and systems across complex, end-to-end business processes. With built-in governance, auditability, and human oversight, Camunda gives enterprises the control they need to move AI fro

Are you ready to revolutionize the advertising industry? At Cognitiv, we are not just another AdTech company—we are industry trailblazers redefining media buying with our Deep Learning Advertising Platform. Since 2015, we have harnessed the power of cutting-edge deep learning technology

About Our Company Built on over four decades of pioneering research at Princeton University, our platform represents the leading edge of innovation in freight and transportation planning. We help customers unlock double-digit revenue gains and drive smarter, data-driven operations at scale. With the

Are you looking for a young startup with a lot of creative freedom and do you want to be part of a young and very good IT/development team? Then you've come to the right place and we look forward to meeting you. Cyber Insight is revolutionizing IT security and data protection. We enable companies to

About Fellow We believe that the act of making should be meaningful and fulfilling, done with intention and precision. Fellow makes beautifully functional tools for any kitchen, designed in San Francisco and used around the world. When the simple motions of life become small moments of joy, that's E

About Bree Bree is a consumer finance platform that brings better, faster, and cheaper financial services to over half the Canadian population who live paycheck to paycheck. We operate in a huge, but overlooked market in a country with the least amount of financial technology innovation in the devel

About Akselos Akselos delivers Structural Performance Management (SPM) software that empowers industrial operators to make safety-critical, high-value decisions regarding the integrity and lifetime of their assets. As we scale our platform across complex data environments, backend reliability, perfo

About Pagaya Pagaya is a global technology company making life-changing financial products and services available to more people nationwide, as it reshapes the financial services ecosystem. By using machine learning, a vast data network and a sophisticated AI-driven approach, Pagaya provides compreh

About Genius Genius is the leading destination for music, lyrics, and the stories behind the songs. At the intersection of music, technology, and culture, Genius connects fans with deeper meaning behind the world’s most influential music. Join an exceptionally talented team of engineers,

DataHub is an AI & Data Context Platform adopted by over 3,000 enterprises, including Apple, CVS Health, Netflix, and Visa. Innovated jointly with a thriving open-source community of 13,000+ members, DataHub's metadata graph provides in-depth context of AI and data assets with best-in-class scal

The Role You'll Play You’ll help build and evolve the backend systems that power ClassPass, partnering closely with Product, Design, and QA to take ideas from concept to production in a way that’s reliable, scalable, and grounded in real customer needs. Partner with Product, Design, and QA to delive

About ResortPass ResortPass is redefining what it means to be a hotel guest. We give people daytime access to pools, beaches, spas, cabanas, and other hotel experiences without an overnight stay. We work with more than 2,700 hotel partners across 30 countries. We have served more than 7 million gues

About Level AI Level AI is a Series C conversational intelligence company headquartered in Mountain View, CA, backed by top-tier VCs and Silicon Valley operators. We help enterprise contact centers understand every customer conversation — using speech AI, NLP/NLU, and retrieval systems to turn milli

⚡️ About Merkle Science Merkle Science provides blockchain transaction monitoring and intelligence solutions for web3 companies, digital asset service providers, financial institutions, law enforcement and government agencies to detect, investigate and prevent illicit use of cryptocurrencies. Our vi