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Backend Developer | Own & Scale APIs & Systems
Backend Developer in Indonesia building and scaling APIs and backend systems: developing REST APIs, integrating services, migrating databases, and optimizing performance, while ensuring data security and technical documentation.
Desenvolvedor(a) Back end Java Sênior
A FCamara em parceria com a Certsys que se consolidou como uma forte parceira de Transformação Digital, apoiando empresas disruptivas por meio de soluções digitais completas e escaláveis alinhadas às principais…
Javautvecklare (backend och integration)
Bytelope AB is hiring a Java backend and integration consultant on a fixed-term contract to work at a client site in Stockholm, starting 4 January 2027. The day-to-day work involves Spring Boot and Kafka plus a DevOps stack including Kubernetes, Helm, CI/CD, GitHub, Terraform, and Apache Spark.
Senior Software Engineer - Backend/Kotlin (REMOTE)
Senior backend engineer on Fanatics Core, the team building the shared foundations (identity, payments, loyalty, wallet, data, platform) behind the Fanatics App, which spans ecommerce, collectibles, and betting. Day to day: designing, building, and operating scalable Kotlin/Java (Spring) distributed systems with event-driven messaging and cloud-native tooling.
Staff Engineer - Backend/Kotlin (REMOTE)
Staff backend engineer on Fanatics Core, the team building the shared foundations (identity, payments, loyalty, wallet, data) powering the Fanatics App across ecommerce, collectibles, and sports betting. Day to day: lead end-to-end delivery of scalable distributed systems in Kotlin/Java with Spring, mentor engineers, run code reviews, and join the on-call rotation.
Senior Software Engineer - Backend/Kotlin (REMOTE)
Senior backend engineer on Fanatics Core, building the shared foundations (identity, payments, loyalty, wallet, data) that power the Fanatics App across sports betting, ecommerce, and collectibles. Day to day: design, build, and operate scalable Kotlin/Java Spring distributed systems with event-driven messaging, observability, and cloud-native infrastructure.
Staff Engineer - Backend/Kotlin (REMOTE)
Staff backend engineer on Fanatics Core — the shared platform (identity, payments, loyalty, wallet) behind Fanatics' sports betting, ecommerce, and collectibles apps. The role leads end-to-end architecture and delivery of scalable Kotlin/Spring distributed systems, mentors engineers, and participates in on-call incident resolution.
Senior Software Engineer, Backend
As a Senior Backend Engineer, you'll build and maintain systems connecting physical hardware to backend services, working on both embedded devices and scalable cloud infrastructure using Python on AWS.
Lisbon-based Java Backend Developer: Microservices & IAM
Komodo Consulting in Lisbon is hiring a Java Backend Developer for a hybrid role building scalable microservices (Checkout, MyAccount, ODR Processing) end to end. Work spans Keycloak/Okta IAM (OIDC, RBAC), REST and GraphQL APIs with OpenAPI docs, and event-driven patterns using AWS SQS or Solace.
Java Backend Developer
Java Backend Developer building scalable Java microservices for Checkout, MyAccount, and ODR Processing on a client project, owning the full feature lifecycle from architecture to deployment. Core stack: Java, React, REST/GraphQL APIs, Keycloak/Okta IAM, and event-driven messaging with AWS SQS and Solace; hybrid role based in Lisbon.
Cloud Native Backend Developer
Designs, builds, and operates cloud-native backend business systems for an e-commerce client, covering technical architecture and DevOps using Java/Kotlin, Spring Boot, Terraform, Docker, GitLab CI/CD, and AWS, within an international team working alongside German colleagues.
Desarrollador Python Backend Y Agentes De Ia
Senior Python backend developer working fully remotely: builds robust backend applications and scalable REST APIs with Django/Flask, manages SQL and NoSQL databases, deploys to cloud, and mentors junior developers. The title also references AI agents; the role is placed via consulting firm Axpe for its client.
Desarrollador Backend Python Senior – Remoto
Senior Python backend developer working fully remotely for Axpe Consulting: leading technical projects, mentoring developers, and collaborating with globally distributed teams. Core stack is Python with Django or Flask, RESTful APIs, SQL/NoSQL databases, cloud environments and agile methods.
Senior Backend Engineer (Optimus Team)
Senior Backend Developer on the Optimus team at Papaya Gaming, building and owning the high-scale backend platform (shared services, experimentation, live config) behind skill-based mobile games with tens of millions of daily tournaments. Stack: AWS, Kubernetes, Node.js, TypeScript, Redis, MySQL, with heavy AI-assisted development via Claude Code.
Backend Engineer, API
Builds and scales a high-throughput AI inference API in Rust, owning model serving, routing, and observability for global developer access.
Backend Engineer, Enterprise
Builds and maintains scalable backend systems in Rust/C++ and Python, integrating AI workflows with databases like PostgreSQL and Kubernetes, to deliver enterprise-grade solutions.
Senior Software Engineer - Backend
Senior backend engineer at a health data platform building automated, scalable and secure ETL pipelines across multiple data sources. Work centers on cloud-native distributed systems and APIs using Java/Python/C#, AWS/GCP/Azure, with Kubernetes a plus; role is hybrid based in the Greater Seattle area.
Senior Backend Developer
Builds and owns backend features for 99yellow using Python/Django (DRF), PostgreSQL, and REST APIs with JWT auth and Pytest tests. Onsite role in Vashi, Navi Mumbai, 5 days a week, for a developer with 4-7 years of backend experience.
Backend Web Developer
Entry-level backend developer role in Pune building scalable backend solutions with Node.js. Day to day involves collaborating with cross-functional teams on system design and ensuring code quality through testing and documentation.