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Build and optimize scalable backend systems in Java/Go, using Spring Boot, Kafka, Redis, and SQL/NoSQL databases while leading technical design and mentoring junior engineers.
Description Our mission is to build a global financial institution for digital assets, one designed from the ground up for market integrity and efficiency. To achieve this in a rapidly evolving market, we apply a…
NVIDIA is powering the world's most advanced AI Factories. Keeping them running depends on an Observability and Prediction platform that continuously ingests telemetry from every GPU, NIC, switch and link in the…
Senior backend developer building and maintaining Hacksaw Studios' high-performance C#/ASP.NET platform that powers their games, handling thousands of transactions per second. Day to day: feature design, performance optimization, unit testing, code reviews, and documentation, working closely with product teams from the central Stockholm office.
About the team Airwallex is building a state-of-the-art lending platform that empowers enterprise clients to offer innovative credit products to their customers, all through Airwallex’s technology and infrastructure.…
Remote Senior Backend Engineer (based in Pakistan, working U.S. business hours) who designs and ships scalable backend services and APIs handling high volumes of daily events. Core stack is Python or Go with PostgreSQL, background jobs, and a focus on observability and reliability while partnering closely with product.
Join us as we work to create a thriving ecosystem that delivers accessible, high-quality, and sustainable healthcare for all. Position Summary: We’re looking for a Senior Member of Technical Staff (SMTS) in Bangalore…
About our Team: Our team is responsible for creating a brand new suite of digital financial platforms and apps that are highly reliable and scalable, using modern engineering practices. You will be joining a project…
Senior Python backend engineer on a client data-platform project: designs and maintains Apache Airflow DAGs and Google Cloud Composer environments, builds Python REST APIs with Pydantic validation, and works with BigQuery, GCS, Pub/Sub, IAM and Cloud Functions, including OAuth2/JWT authentication.
Senior Java backend engineers join the core team building a major North American bank's low-latency, high-throughput capital markets trading systems (prime brokerage and platform teams). The work centers on core Java (8/17/21), distributed message-queue services, and microsecond-level performance tuning, fully remote from Poland with US Eastern-hours overlap during onboarding.
Senior backend engineer at OBI Smart Technologies (a JV of OBI and Reply Group) who owns backend architecture for product and assortment management in a large retail ecosystem. Day to day: building scalable Kotlin/Spring Boot services, Kafka-driven event-driven pipelines, and PostgreSQL data models on AWS/Kubernetes (EKS).
Senior Java backend developer in Gdańsk who designs, builds, and maintains Java applications handling taxation, account management, and investment processing for pension and savings products. Core stack: Java 21, Spring Boot, Hibernate, PostgreSQL, and messaging (JMS/MQ), with CI/CD and OpenAPI/AsyncAPI.
Senior Backend Developer designs and maintains backend services and REST APIs using Kotlin/Java with Spring Boot and MongoDB, taking end-to-end ownership of service availability and performance in a remote-first agile team, with an optional Kraków office. Docker, CI/CD pipelines and openness to AI tooling round out the stack.
Senior backend developer building an ETF-based wealth management platform serving 1M+ users, focused on authentication, identity, and security in a microservices architecture. Day-to-day work uses Java/Kotlin with Spring, GraphQL/REST APIs, and cloud infrastructure on AWS/GCP with Terraform, Docker, and CI/CD.
Senior backend engineer building high-load, high-availability microservices for an iGaming client's User Experience & Loyalty domain in Warsaw — real-time communication systems, bonus engines, and loyalty programs. Day-to-day work spans Java/Kotlin, Spring/JPA, Kafka, and MySQL with end-to-end ownership from design to deployment and monitoring.
Senior backend engineer building core-banking technology for a UK Banking-as-a-Service product (NatWest Boxed) placed via Mindbox. Day to day: deliver Java services with Spring Boot or Micronaut on AWS, working with Kubernetes, Docker and Kafka in an agile, security-focused team while mentoring junior engineers.
Senior backend developer building and maintaining scalable web applications and RESTful APIs with C#, .NET Core, ASP.NET Core Web API, Entity Framework Core, and SQL Server at Andor Tech in Bangalore (work from office). Also does code reviews, performance tuning, and some front-end work in an Agile/Scrum team.
ezAtlas is hiring a Senior Java Backend Engineer (5-7 yrs) based in Bangalore with hybrid/remote options to build scalable Spring Boot services and REST APIs. The role centers on PostgreSQL and MongoDB performance tuning, high-volume batch processing of millions of records, and resolving production performance issues.
Senior Backend Engineer owning and operating production Python microservices (FastAPI/Django) on AWS for SecurityHQ's cybersecurity platform — event-driven systems on EKS, PostgreSQL/RDS, Terraform, GitHub Actions and FluxCD, with strong testing, observability, and AI-assisted development practices. Onsite 5 days/week in Maharashtra, India.
Senior backend developer (8–10 yrs) building scalable Java/Spring Boot and Node.js microservices with event-driven Kafka architectures, REST APIs via Apigee, and PostgreSQL/SQL Server databases, deployed on AWS with Docker/OpenShift. Also handles CI/CD with Jenkins, monitoring with New Relic/ELK, Email/SMS middleware, and uses AI-assisted coding tools like GitHub Copilot and Claude Code Assist.
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