8,641 Senior Backend jobs
Senior backend engineering roles owning server-side systems and APIs.
Sr Backend | Golang, Node, TypeScript | Payments
What would you do? Build and evolve payment services end to end , using Go for new services and Node.js, TypeScript, and PostgreSQL to maintain and improve existing systems. Design and implement payment gateway…
Senior PHP Backend Engineer — Scalable Cloud APIs
Builds server-side functionality and scalable cloud-based services on CommuniTech Recruitment Group's Riyadh team, contributing to architectural decisions. Core stack: PHP with modern frameworks, MongoDB, Node.js, and AWS/Azure, plus CI/CD, Docker, and Redis.
Senior Go Backend Engineer — Scale Microservices & Payments
Q Mart, a Saudi e-commerce company, is hiring a Senior Go Backend Engineer in Jeddah to design, build, and maintain scalable Go microservices powering orders, payments, and logistics. The role centers on RESTful APIs, PostgreSQL optimization, and distributed systems design, collaborating with frontend, mobile, and DevOps teams.
Backend Developer | PHP | Mid-Senior Level | Riyadh, KSA | $45,000 - $65,000 + Discretionary bonus + benefits
Mid-senior PHP backend developer for a technology business in Riyadh, designing and building scalable server-side services for an established software product and integrating databases, file systems and cloud platforms. Core stack: PHP, MongoDB, Node.js, PHPUnit, Solr, AWS/Azure, with AI coding assistants part of the daily workflow.
Senior Rust Backend Developer
Senior backend developer at Fixup, building proprietary real-time platforms that blend software, telecom and IoT — used for GPS tracking, sports-event timing and mission-critical international events. The work centers on designing distributed, scalable Rust services with REST/real-time APIs on PostgreSQL, Redis, Docker and Linux.
Desenvolvedor(a) Back-end Sênior (Java)
Senior back-end developer at Claro (hired via Hitss Brasil) building and evolving Java services and REST APIs for applications serving a large number of devices, while helping define module architecture and mentoring other developers. Core stack: Java 8+, Spring/Spring Boot, MySQL, MongoDB, Git; on-site in Rio de Janeiro.
Senior Java Backend Engineer - Remote (Poland) 12-Month
Senior Java backend engineer on a 12-month B2B/freelance contract (remote within Poland, Kraków hub) designing and scaling microservices-based backend services with Java, Spring Boot, and integration frameworks like Apache Camel and Spring Integration, while mentoring and coaching developers across international client teams.
Développeur Senior Java Backend H/F – Lyon
Senior Java backend developer (2 openings, ASAP) in Lyon: designing and evolving application components with Java/Spring Boot, integrating REST/SOAP APIs, handling multithreading and batch transactions on Oracle/PostgreSQL, writing unit/integration tests, and industrializing delivery via GitLab CI/CD.
DÉVELOPPEUR SENIOR BACKEND .NET / AZURE | PARIS
Senior backend developer joining a Banking-as-a-Service payment platform handling millions of daily transactions, building critical services for payment authorization, card issuing and tokenization. Day-to-day: REST APIs and microservices in .NET 8 on Azure (Service Bus, Functions, Storage), with a focus on performance, reliability and code quality.
Senior Desarrollador .NET & Node.js Backend
Senior backend developer working 100% on-site in Mérida, Yucatán: designs, develops and delivers IT projects keeping the institution's tech ecosystem running. Core stack is C#/.NET (plus VB) and Node.js with Express and TypeScript, backed by SQL databases; AWS, CI/CD, unit testing and Scrum are valued.
Senior Backend Developer (.NET)
Senior backend engineer for a US tax software company migrating a legacy platform to .NET 8+ Web APIs using Clean Architecture and CQRS. Day to day: translating complex business rules into secure APIs, optimizing MySQL access with Dapper/EF Core, and working with AWS. Remote, full-time, long-term contract from LATAM.
589- Desenvolvedor(a) Back-end Sênior (.NET)
Senior backend developer on Seidor's consulting team in Belo Horizonte (hybrid), building and evolving Node.js RESTful services end to end — from architecture and proofs of concept through deploy — with TypeScript, Express/NestJS, unit/integration testing, AWS, Docker and Kubernetes.
Senior C#/.NET Backend Engineer — Cloud-Native (AWS)
Senior C#/.NET engineer (hired via Allegis Group Singapore) joining an enterprise technology team to build and support cloud-native backend trade operations platforms on AWS. Day to day involves project delivery and BAU support, stakeholder collaboration, and modern practices including AI-assisted tooling.
Senior C++ Backend Engineer - Trading & Finance
Senior backend engineer in Singapore building and maintaining C++ components that power sales and trading applications. Day to day involves debugging trading systems, collaborating with trading desks, and working across a stack that includes .NET services, Kafka pipelines, KDB+ stores, and Python tooling.