Backend Developer Jobs in Bulgaria

About AlphaSense: The world’s most sophisticated companies rely on AlphaSense to remove uncertainty from decision-making. With market intelligence and search built on proven AI, AlphaSense delivers insights that matter from content you can trust. Our universe of public and private content includes e

About Anovium Anovium is a product-focused digital innovation agency and consultancy. We empower companies to innovate and harness technology. Anovium is a sister organization of a venture studio, which builds out ideas into high-growth companies. This provides unique exposure to the agency in emerg

At DraftKings, AI is becoming an integral part of both our present and future, powering how work gets done today, guiding smarter decisions, and sparking bold ideas. It’s transforming how we enhance customer experiences, streamline operations, and unlock new possibilities. Our teams are energized by

We're hiring a Software Engineer to play a pivotal role in shaping the backbone of our innovative Software as a Service (SaaS) products. This isn't a typical backend role: we're looking for someone who's already adapted to building software in the AI era – who thinks in systems, moves comfortably ac

About the company At Thrill Labs, we're not just building a gaming company; we're creating a global sensation. We are the innovative force behind Thrill.com, a groundbreaking crypto gaming venture set to launch soon! Our mission? To build the world’s most epic gaming brand and craft magical experien

About the role This role is going to be working on the open source Doppler SDK and Indexer. Responsibilities Implementing - new SDK and Indexer features Testing - automate backend testing alongside a release pipeline Support - helping applications and protocols integrate the SDK and Indexer Shipping

Аbout us: OfficeRnD has one mission: making flexible and hybrid working the norm, rather than an option. We started building our SaaS platform back in 2015 to support the future of work. We believe that offering freedom and flexibility is the key to providing a better workspace experience. And that’

About Us OfficeRnD has one mission: making flexible and hybrid working the norm, rather than an option. We started building our SaaS platform back in 2015 to support the future of work. We believe that offering freedom and flexibility is the key to providing a better workspace experience — and that'

Whippy is leading the way in AI-powered business communication, transforming how companies engage with customers using intelligent AI Agents. From customer support to marketing to sales, businesses rely on Whippy’s Voice AI and Chat AI to eliminate manual workflows—responding to inquiries, nurturing

About Thndr Thndr is on a mission to make investing simple and accessible for everyone across the Middle East and North Africa. Since launching in 2019 and going through Y Combinator shortly after, we have grown into Egypt's number one investing app, with millions of people putting their money to wo

About Kalepa: Insurance is a $7T global industry built on professional labor: underwriting, claims, pricing, operations, and distribution. Kalepa is building AI that can perform that work. We create professional-grade AI systems for insurers: software that can read, reason, decide, and act inside re

Do you excel at solving complex backend challenges like streaming responses, intelligent batching, low-latency caching, and API optimization under heavy load? Are you looking for a high-impact backend role where system reliability, cost efficiency, and ultra-low latency directly drive the product ex

Why us? Insurify is one of the America’s fastest-growing MIT FinTech startups and has been recognized as one of Inc. 5,000’s fastest-growing private companies in America of 2023, 2022 and 2021, Forbes Fintech 50 List for 2023, 22, 21, Forbes Next Billion Dollar Startups of 2022 global and Top 100 In

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

Do you have end to end project experience in a Mobile First Product Company? Do you have experience leading a backend team and with Ruby On Rails? Great! Please read on as we have a role for you. Join a profitable, fast-moving mobile apps startup as a Backend Lead, where you’ll own the core backend

Hi, I’m Paul, VP of Engineering at Customer.io. We’re looking for experienced backend engineers who care deeply about reliability, performance, and scalability. You’ll design, build, and evolve the systems that power communication at massive scale - while helping us push the boundaries of what great

Summary: Join a cutting-edge decentralized exchange (DEX) team as a Developer, where you will focus on enhancing cross-chain liquidity and optimizing swap processes. Your expertise will drive the development of API services and the implementation of trade routing logic to ensure seamless operations.