Senior Backend Core Engineer Jobs

Solaris · Berlin

Your Role We're looking for a Senior Engineer to join one of our core pr

Fin · New York

About Fin Fin is a next-generation payments platform built for high-value, global, and instant transactions. We are a Series A-stage company backed by Sequoia, Circle, and other notable investors. Powered by stablecoins, Fin enables users and businesses to move millions of…

Affirm · Spain

Whether we’re enabling new ways to pay, ensuring our platforms can scale to the most demanding levels in the industry, or developing seamless servicing experiences, our focus is on solving complex problems th

Crypto.com · United States

We are seeking a highly skilled Mid-to-Senior Backend Engineer to spearhead the growth of our 24/7 high-throughput infrastructure, with a particular focus on expanding our core domains into the sports, prediction ecosystem. This role demands an engineer who thrives within a…

Astra · United States

About Astra Astra is a high-impact engineering team building mission-critical financial infrastructure. Our fintech platform powers payment processing, fraud detection, and financial compliance for businesses handling 100M+ in weekly transaction volume. We maintain 99.9%+…

Solaris · Berlin

Senior Backend Engineer - Java/Go at Solaris in Berlin, Germany. €80K – €95K/yr.

Clarion · New York

About Clarion At Clarion, we’re rebuilding how healthcare communicates in the age of AI. Today, clinics miss 30–40% of patient calls, while staff are overwhelmed by administrative work. We believe AI agents should handle these workflows—scheduling, billing, prescription refills,…

Seven AI · Boston

About 7AI 7AI is the foundational AI security company. Founded in 2024 by Cybereason co-founders Lior Div and Yonatan Striem-Amit, we came out of stealth in February 2025 to take on the non-human work of the SOC. Our platform pairs a federated SIEM with AI agents that detect,…

Odaseva · Paris

Odaseva provides enterprise data management and security solutions that help organizations exercise sovereignty over their critical data. Companies representing 10% of global market capitalization trust Odaseva, including Schneider Electric, Volkswagen and Robert Half. Its…

Wolt - English · Berlin

About Wolt At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries…

Openfx · Bengaluru

About Us OpenFX is on a mission to move money as freely as data, unrestricted by time zones, banking hours, or legacy systems. We are building the infrastructure that will power the next generation of cross-border payment systems for institutions. The team's execution has been…

Affirm · Poland

Senior Software Engineer, Backend (Comms Core) at Affirm in Poland. Remote.

GitLab · Bengaluru

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and…

HelloFresh · Warszawa

At HelloFresh, the goal is to change the way people eat forever by delivering high-quality food across 18 countries and 3 continents. As a global food solutions group and the world's leading meal kit provider, the portfolio includes HelloFresh, Green Chef, EveryPlate, Chefs…

HackerRank Careers · Hybrid In Bangalore

HackerRank helps companies like NVIDIA, Amazon, and Microsoft hire and upskill the next generation of developers based on skills, not pedigree. Our platform is trusted by over 2,500 of the world’s most innovative companies to build strong engineering teams ready for what’s next.…