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Staff Back End Engineer

New HybridNorth AmericaStaff

Altruist is hiring a Staff Back End Engineer (hybrid, 3 days/week in Culver City) to lead cross-service backend work on security, scalability, and reliability — building identity/access management (OAuth/OIDC, RBAC), hardening AWS infrastructure and databases, and driving production reliability on a Java/Spring Boot, AWS, Postgres, Kubernetes stack.

AI API Authentication AWS Cloud +11 skills

200K – 265K $

Desarrollador Java Backend

Develops and maintains Java backend applications — building microservices and distributed systems, analyzing requirements, writing technical/functional documentation, and running unit tests and CI/CD pipelines within agile teams. Requires 3+ years of Java backend experience; full-time, remote position.

CI/CD DevOps Git Java

Candour Solutions

Backend System Developer

New North America

Build and enhance the backend integrations at the heart of a large-scale digital platform for a technology-driven organisation, working hybrid (3 days/week) from Runcorn. Salary £40,000–£60,000; the specific tech stack is not stated in the posting.

Software Development Engineer III (Backend) - Contacts

Hands-on backend engineer (SDE III) on HighLevel's Contacts team, owning scalable microservices and APIs that power CRM contact records, filters, and segmentation at large scale. Core stack: TypeScript/Node.js, REST/microservices, relational & NoSQL databases, Docker, AWS/GCP, message queues, and observability tooling.

Agile AI API Automation AWS +27 skills

Diversified Services Network, Inc.

(1112754) Senior Software Engineer - Java/AWS Backend

New HybridNorth AmericaFull-timeSenior

Senior backend engineer designing Java 17/Spring Boot RESTful microservices on AWS (or Azure), mentoring developers, conducting code reviews, and leading delivery on Agile teams. Hybrid role (2 days/week onsite) supporting a Fortune 100 client; requires 8+ years of relevant experience.

ActiveMQ Agile AI API Aurora +37 skills

155K – 165K $

Superleap AI CRM

Software Engineer - (Backend)

Backend engineer at an AI-native CRM startup who builds and scales the APIs, services, and databases powering the platform, owning features end-to-end from development to production. Works with Go/Java/Python/Node.js, SQL/NoSQL databases, and cloud platforms with a focus on scalability and reliability.

AI API CI/CD Cloud CRM +9 skills

Senior Java Backend Engineer ( U.S Citizen Only)

New North AmericaSenior

Onsite Senior Java Backend Engineer in Campbell, CA (U.S. citizens only) building and supporting production-grade backend services. Core stack is Java, Spring Boot, gRPC with Protocol Buffers, and REST APIs, requiring 5 years of experience.

API gRPC Java Protobuf REST +1 skills

Senior Backend Software Engineer - Campinas/SP

Open 90d LATAMSenior

Senior backend engineer at Agibank, a Brazilian digital bank, designing scalable and resilient Java/Spring Boot services with Kafka/RabbitMQ messaging, MongoDB/Redis, Docker/Kubernetes and AWS. Hybrid role based in Campinas/SP with one onsite day per week, including code reviews, mentoring and setting technical guidelines.

AWS BDD Cloud Docker GitLab +9 skills

Senior Backend Software Engineer - Campinas/SP

Open 90d LATAMSenior

Develops and maintains Java-based backend services for a digital bank using Spring Boot, databases, and cloud-native tools, focusing on scalable financial APIs and customer experience.

API CI/CD Git GitLab Java +13 skills

15K – 25K BRL

Specialist Backend Software Engineer - Campinas/SP

Build and lead backend systems for a digital-first Brazilian bank, designing scalable microservices and APIs in Java/Spring Boot on AWS while collaborating with cross-functional teams.

API AWS Cloud Docker GitLab +10 skills

Backend Engineer Intern

New APACInternshipIntern

Backend engineering intern at Klook, a travel/experiences platform in Singapore, working under a mentor to design, build, test, deploy, and troubleshoot modules using languages like C++, Golang, Python, Java, or JavaScript, with responsible use of AI-assisted development tools.

AI C++ Go Java JavaScript +3 skills

Software-Entwickler (Backend) (m/w/d)

Backend software developer in Hamburg who designs and implements custom software solutions and APIs using the Symfony framework with current PHP, modeling data in PostgreSQL, within a cloud stack environment (Kubernetes, Terraform, Cilium).

API Cloud Kubernetes PHP PostgreSQL +3 skills

Backend Software Engineer Java - FinTech

Senior hands-on backend Java engineer at a scaling FinTech in Newcastle, working onsite with Front Office trading teams to transform a complex legacy C++ trading system into a modern Java-based application. Salary up to £120,000.

C++ Fintech Java

Backend Developer Consultant

New RemoteEurope

Immense Group is hiring a middle backend developer in Malta to build and maintain PHP/Laravel services that integrate third-party casino game providers. Day to day this means implementing provider API integrations, handling game launch/bet/win transaction flows, optimising databases, debugging production incidents (with on-call), and mentoring juniors.

API Authentication CI/CD Docker Git +8 skills

Go backend engineer — high-impact distributed systems

A backend software engineer in Stellenbosch, South Africa will build robust Go-based services and own features end-to-end in a CI/CD environment, working on high-throughput distributed systems with high availability. Core requirements are proficiency in Go (or Java/C/C++) and essential Linux experience.

AI CI/CD C++ Java Linux

Backend Developer - Java / Spring Boot

100% on-site backend role in Guadalajara, Mexico: design, build, and maintain secure, scalable Java/Spring Boot REST APIs and microservices handling high transaction volumes, with heavy focus on database optimization (MySQL/PostgreSQL) and API security (OAuth2, JWT, OWASP).

API Api Security AWS CI/CD Django +25 skills

Comercial M Y B

Desarrollador Java Backend Jr. con Spring Boot (Híbrido)

New LATAMJunior

Junior backend developer (6-month project) building and maintaining REST APIs with Java and Spring Boot. Hybrid role with one office day per week at Portal San Ángel in Mexico City, working with CI/CD, relational databases (Oracle/MySQL), and software testing.

API CI/CD Java MySQL Oracle +1 skills

Principal Backend Engineer

New UKFull-timePrincipal

Principal-level backend engineer designing and evolving Python backend services, APIs, and data pipelines for high-throughput field operations systems at a product-led company. Core stack includes Python (FastAPI/Flask/Django), relational databases, distributed systems, and AWS.

API Api Design AWS Cloud Cloud Native +11 skills

BACKEND DEVELOPER SENIOR – .NET, CLOUD & ARTIFICIAL INTELLIGENCE REMOTO

New LATAMSenior

Senior remote backend developer at Perceptio, an SAP Partner tech-transformation consultancy. Day to day: building backend services with C#/.NET Core, designing REST APIs using modern architectures, and integrating generative AI (LLMs, RAG, embeddings) and cloud services. Service-contract role with immediate start.

API Cloud C# .NET Embeddings +2 skills

Senior Software Engineer (Back-end/Server)

New HybridNorth AmericaFull-timeSenior

Are you ready to embark on a career that truly affects people around the world? Trulioo invites you to be a catalyst for change in the dynamic realm of digital identity verification. As the global front-runner in our…

AI Anomaly Detection API Api Design CI/CD +31 skills