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NDA Recruitment
last week

Senior Back-End Developer (Rust)

EuropeFull-timeSenior
Ukraine

Ми шукаємо Senior Back-End Developer, який має глибоку технічну експертизу в розробці високонавантажених серверних систем, добре розуміється на алгоритмах, структурах даних та принципах побудови ефективного програмного…

API AWS Azure CI/CD Docker +8 skills
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Acaisoft Poland Sp. z o.o.
last week

Senior Backend Engineer (Java/Go)

RemoteEuropeSenior
Poland

Hi there! If you’re seeking a high-impact role within an ambitious and fast-growing software house, you might have just found your perfect match! Our client is a global leader in Intelligent Observability platforms…

Automation AWS Azure CI/CD Cloud +8 skills
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Four Kitchens
last week

Senior Backend Drupal Engineer - Costa Rica

RemoteLATAMSenior
Costa Rica

Four Kitchens is looking for a Backend Engineer with experience in PHP and Javascript who is proficient in or wants to learn Drupal development. Backend Drupal Engineers with Four Kitchens are growing their skills, and…

GitHub JavaScript PHP React Slack +2 skills
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SumUp
last week

Senior Backend Engineer (Kotlin) - Cards

EuropeSenior
Bulgaria

SumUp builds simple, affordable financial tools that help small businesses get paid, manage their money, and grow. Beyond payments, we offer a number of financial products - including business banking, card products,…

AI API Api Design CI/CD Cloud +8 skills
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Warren Walter
last week

Développeur Backend Node.js Senior Freelance (H/F)

HybridEuropeContractSenior
France

Dans le cadre du développement et de l’évolution de ses applications et services numériques, nous recherchons un(e) Développeur(se) Backend Node.js Senior pour intervenir sur des projets nécessitant une expertise…

Agile API Bash Express.js Fastify +13 skills
415 – 520 € / day
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Warren Walter
last week

Développeur Backend Node.js Senior (H/F)

HybridEuropeFull-timeSenior
France

Dans le cadre du développement et de l’évolution de ses applications et services numériques, nous recherchons un(e) Développeur(se) Backend Node.js Senior pour intervenir sur des projets nécessitant une expertise…

Agile API Bash Express.js Fastify +13 skills
50K – 55K €
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EAGERDEVS.COM
last week

Senior Backend Engineer

RemoteEuropeContractSenior
Poland

Ogłoszenie o pracę: Senior Backend Engineer Lokalizacja: Zdalnie Forma zatrudnienia: Freelance Zaangażowanie: Pełny etat Data rozpoczęcia: Jak najszybciej Język: Angielski Opis stanowiska: Nasz klient, fintech startup…

Agile API AWS Fintech Java +3 skills
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IESF AG
last week

Mid-Senior Back-End Engineer Java or Kotlin

RemoteEuropeSenior
Ukraine

Role Overview: In this role you will be responsible for the design and implementation of the event-driven microservices architecture, bringing the responsiveness, efficiency, scalability, robustness and security of the…

BDD CI/CD Cloud Cloud Native Cucumber +20 skills
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IESF AG
last week

Senior Web3 Back-End Developer - fully remote

RemoteNorth AmericaContractSenior
United States

Our client is an US based company, operating within the crypto economy and is supported by top tier funds. The company is focussed to connect capital to the most attractive risk adjusted yield across chains. The…

DeFi Design Patterns EVM JavaScript Node.js +3 skills
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Appier
last week

Senior Software Engineer, C++ Backend Development (Ad Cloud Bidding)- Tokyo Relocation required

APACSenior
Japan

About Appier Appier is an AI-native Agentic AI as a Service (AaaS) company that uses artificial intelligence (AI) to power business decision-making. Founded in 2012 with a vision of democratizing AI, Appier’s mission…

Agentic AI AI Automation Cloud C++ +3 skills
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Koottu Inc.
last week

Senior Backend Developer

RemoteAPACSenior
India

Senior Backend Developer at Koottu Inc., an AI-powered matchmaking platform. Manages backend services, AWS infrastructure (EC2, S3, CloudWatch, API Gateway), CI/CD pipelines (ArgoCD, Jenkins, Docker, Kubernetes), and database design (MongoDB, PostgreSQL) for scalable, secure APIs supporting the platform's features.

AI Angular API Argo CD Authentication +25 skills
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IESF AG
last week

Mid-Senior Back-End Engineer Java or Kotlin

RemoteEuropeSenior
Bulgaria

Designs and implements event-driven microservices using Java/Kotlin and the Spring stack, owning core backend services and collaborating with Product and Data teams. Core technologies include Java, Spring Boot/Cloud, Kafka, Docker/Kubernetes, Jenkins CI/CD, and observability tooling for a UK FinTech wealth-management platform.

BDD CI/CD Cloud Cloud Native Cucumber +20 skills
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Xero
last week

Senior Backend Engineer (Payments Platform)

North AmericaFull-timeSenior
United States

Designs and builds payment platform capabilities (orchestration, risk/fraud prevention, multi-provider integrations) and a global bill payment product, developing high-throughput backend services on AWS using modern stacks like C#, Java, Golang, or C++.

Agile API Api Design AWS Cloud +8 skills
209K – 251K $
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Ramp
last week

Senior Backend Engineer (Accounts Receivable)

RemoteNorth AmericaFull-timeSenior
United States

Senior Backend Engineer on Ramp's Accounts Receivable team, owning backend systems that automate invoicing, payment matching, collections, and ERP syncs (NetSuite, QuickBooks). Day-to-day work includes designing data models, APIs, and async workflows for financial transactions, plus code reviews and mentorship.

Accounts Receivable API General Ledger NetSuite QuickBooks
204K – 280K $
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Brunel GmbH NL Nürnberg
last week

Senior Python Backend Engineer / Senior Python-Entwickler / Backend-Entwickler KI (m/w/d)

EuropeSenior
Germany

Senior Python Backend Engineer to operate and maintain AI/LLM applications in production, handling monitoring, incident analysis, root cause debugging across Python backends, React frontends, REST APIs, and databases, deploying fixes via CI/CD, and improving observability and resilience. Core tech: Python (FastAPI/Flask), PostgreSQL, Docker, GitLab CI/CD, AWS, and AI integrations (Azure OpenAI, La

AI API AWS Azure CI/CD +33 skills
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Affle 3i Ltd
last week

Senior Backend Engineer

RemoteCIS, Europe, MENA, UKSenior
+40

Senior Backend Engineer building and maintaining high-volume AdTech platform including backend APIs (Python/Node.js), Java-based RTB/Ad Exchange services, and advertising reporting/data pipelines. Requires 3+ years AdTech experience with RTB, Kafka, AWS, and low-latency distributed systems.

API AWS Cloud Data Pipelines DevOps +8 skills
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IESF AG
last week

Senior Web3 Back End Engineer

RemoteNorth AmericaContractSenior
United States

Designs and scales backend infrastructure for a multichain yield platform, integrating with on-chain protocols and smart contracts. Works with Web3/EVM tools such as Tenderly, ethers, viem, and wagmi in a fully remote role.

DeFi Design Patterns EVM Node.js Smart Contracts +2 skills
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Tala
last week

Senior Backend Engineer

RemoteAPACSenior

Senior Backend Engineer at Tala building AI-native credit infrastructure for emerging markets. Designs and operates Java/Kotlin/Scala microservices on cloud platforms, authors design docs, leads domain reliability, and mentors engineers across global time zones.

Acceptance Criteria Agile AI API Api Design +23 skills
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Bertrandt Services GmbH
last week

Senior Python Backend Developer - AI Applications (m/f/d) (Backend-Entwickler/in)

EuropeFull-timeSenior
Germany

Wir sind Bertrandt. Ein eigenständiger und internationalerEngineering Dienstleister mit langjähriger Expertise. Mitbranchenübergreifendem Know-how und einem ganzheitlichen System- undProduktverständnis schaffen wir…

Agentic AI AI API AWS Azure +35 skills
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Hygi.de GmbH & Co. KG
last week

Senior Backend Developer PHP/Symfony - AI & E-Commerce (m/w/d) (Kaufmann/-frau - E-Commerce)

EuropeFull-timeSenior
Germany

Deine Karrierechance alsSENIOR BACKEND DEVELOPER PHP/SYMFONY – AI & E-COMMERCE (m/w/d)PHP/Symfony ist dein Fundament – AI gehört für dich inzwischen zum modernen Software Engineering dazu?Dann entwickle mit uns das…

AI API CI/CD Claude Code E-commerce +14 skills
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