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12,398 Senior Full-Stack jobs

Senior full-stack engineering roles spanning frontend and backend delivery.

12.4K jobs

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12,398 jobs Posted Sort

Senior full-stack java developer | cloud & microservices

Senior full-stack Java developer at UBS in Doha building and maintaining in-house applications for the WMPC platform: designing Spring Boot microservices and REST services with TypeScript/React front ends, and contributing to SDLC with DevOps practices on Azure, Docker, and Kubernetes in a large-scale enterprise environment.

Azure CSS Docker HTML Java +5 skills

Senior Full-Stack Product Engineer, AI Products

RemoteNorth AmericaFull-timeSenior H-1B sponsor history

Senior full-stack product engineer at Solv building AI-powered healthcare products — near-term voice and AI agents for scheduling, billing, and clinic workflows. Owns features end to end across frontend, backend, APIs, and relational data, with a stack like React, TypeScript, Python, FastAPI, and Postgres.

Agentic AI AI API Data Quality FastAPI +10 skills

150K – 210K $

Smartly.io Job Board

Senior Fullstack Engineer (Creative & Asset Library)

On-siteEuropeSenior

Senior fullstack engineer on the Rocket team at Smartly, building the Asset Library — a creative production tool that generates and manages tens of millions of advertising creatives. You own features end to end, design API contracts, and work with React/TypeScript on the frontend and Node.js/TypeScript with PostgreSQL and Kafka on the backend, running on Kubernetes.

AI API GitHub GitHub Actions Grafana +8 skills

Senior Fullstack Software Engineer - Network

Open 68d RemoteNorth AmericaSenior

Senior fullstack engineer joining Conveyor's new initiatives team to build AI-powered products for its Customer Trust Platform, owning work across backend, frontend, and AI. Core stack: Python, React, Ruby on Rails, PostgreSQL, AWS, and LLMs. Remote-first within the US and Canada, $190k-$220k/year.

Agentic AI AI API Authentication AWS +9 skills

190K – 220K $

Senior Full Stack Developer (AI SaaS)

On-siteEuropeFull-timeSenior

Senior full-stack developer building an AI-powered B2B SaaS platform of chat and voice agents that help customers navigate complex product catalogs. Day-to-day: full-stack features with TypeScript/NestJS, MongoDB data workflows, and integration of current LLM APIs. Remote across Europe, hybrid from Cologne or Hamburg.

AI API LLM MongoDB NestJS +2 skills

VX Fiber Limited

Senior Full stack Developer

EuropeFull-timeSenior

Senior full-stack (backend-heavy) developer at VX Fiber in Umeå, Sweden, owning problems end-to-end on a SaaS platform for fibre network operations (OSS/BSS). Stack: Go with gRPC/Protobuf, GraphQL, React/TypeScript, Postgres, Temporal, Nomad/Consul/Vault on AWS, plus hands-on agentic coding tools.

Agentic AI API Automation AWS Cloud +14 skills

S Senior Full-Stack Engineer, Cohere Dashboard Toronto (Remote), CA PythonTypeScript React

North AmericaSenior

Senior full-stack engineer on Cohere's Dashboard team builds the user-facing control center for its AI platform — API keys, team management, billing, docs — crafting browser and server code with Next.js/React/TypeScript, Python, and complex SQL. Remote role based in Toronto, Canada at an enterprise AI company.

AI API Cohere LLM Next.js +4 skills

Senior Full-Stack Engineer — Dashboard (Remote)

North AmericaSenior

Cohere is hiring a Senior Full-Stack Engineer to build its Dashboard, working across frontend and backend to ship scalable features for its security-first AI products. Based in Toronto with remote-friendly options, on a small collaborative team focused on performance and reliability.

Unity Technologies Canada Company

Sr. Full Stack Engineer

North AmericaSenior

Senior full-stack engineer on Unity's Unified Ads Platform team, owning the service layer for advertiser/publisher entities: building and operating TypeScript/NestJS APIs, SQL schema design, Kafka and Google Cloud Pub/Sub event-driven integrations, and React frontends, with production ownership on Kubernetes. Path to a Tech Lead Manager role.

API Cloud Data Modeling Event Driven Architecture GCP +10 skills

125K – 176K CAD

3001 S&P GLOBAL UK LIMITED

Senior Full-Stack Software Engineer (JavaScript)

On-siteNorth AmericaSenior

Senior full-stack engineer at Kensho (S&P Global's AI innovation hub) in New York, building AI-centric web applications in TypeScript — from experimental POCs to flagship React/Next.js products — with ownership of architecture decisions, mentorship, and collaboration across the full software development lifecycle.

AI API AWS EKS Generative AI +13 skills

150K – 225K $

Développeur.se Fullstack Senior / Senior Fullstack Developer

On-siteNorth AmericaSenior

Senior fullstack developer on the Account team at Cloud Imperium Games (Star Citizen), shaping the player platform — login flows, profile management, and site-wide navigation. Work spans a modern monorepo with React/TypeScript (Vite, Redux/Zustand) on the front end and PHP/Node.js, MySQL/Redis, and microservices on the back end.

API Backbone.js Cloud Game Development gRPC +14 skills

The Toronto-Dominion Bank (Canada)

Senior .NET Full-Stack Engineer | Build Impactful Apps

North AmericaSenior

Senior .NET full-stack engineer at TD Bank in Toronto who designs and implements new features for internal engineering programs, writes unit tests, participates in peer code reviews, and helps monitor system performance and delivery timelines, working to TD's architecture standards.

Senior Java/React Full-Stack Developer – Payments (Montréal)

Likely evergreen North AmericaSenior

12-month renewable contract supporting payment transformation for a bank in Montréal: build full-stack features with Java/Spring Boot and React, integrate JMS/IBM MQ/Kafka messaging, and work on an AWS foundation (KMS, SSO, encryption). Hybrid, 2 days/week on-site; French required, English a plus.

AWS Cloud IBM MQ Java Jms +4 skills

Intact Financial Corporation

Senior Full stack AI Developer (Python & Angular/React)

North AmericaSenior Canada LMIA employer

About the role We’re looking for a Senior Full stack AI Developer (Python & Angular/React) to join our growing team! What you’ll do here: Integrate AI solutions tailored to improve the business’s operational…

Agentic AI Agile AI Angular API +34 skills

Senior Full-Stack Engineer (AI Products) | On-site | George WC

AfricaFull-timeSenior

Senior full-stack engineer building the product layer for AI agents at an insurer: chat interfaces, human-in-the-loop review systems, backend APIs, and production pipelines. Day to day spans React frontends, Node.js/Python backends, CI/CD, and observability for LLM systems — on-site in George, Western Cape.

Agentic AI AI API Authentication Azure +10 skills

e-Merge IT Recruitment

Senior Java Full-Stack Engineer for Fintech & Cloud AI

Senior full-stack engineer joining a financial services firm in Sandton, South Africa to build scalable, production-grade digital banking systems. Day to day is Java/Spring Boot development on AWS with event-driven architecture (Kafka), RESTful APIs, testing, and agile delivery with senior stakeholders.

Agile API AWS Cloud Cloud Native +5 skills

e-Merge IT Recruitment

Senior Java Full Stack Engineer - SANDTON (Hybrid) - R1.6m PA

AfricaContractSenior

Senior full-stack engineer at a digital banking / financial services firm in Sandton (hybrid), building scalable event-driven systems with Java, Spring Boot, Kafka, PostgreSQL, AWS and Terraform, plus AI-assisted development tooling. Permanent role offering R1.6m ZAR cost-to-company per annum.

Agile AI API AWS Cloud +15 skills

1.6M – 1.6M ZAR

e-Merge IT Recruitment

SENIOR FULL STACK ENGINEER (C# .NET) - JOHANNESBURG - UP TO R1.5M PER ANNUM - MAT61556

AfricaFull-timeSenior

Senior full-stack engineer at a financial services company in Johannesburg, building scalable production applications with C#/.NET Core on the back end and React or Vue with TypeScript on the front end, deployed on AWS or Azure, while leading technical decisions and mentoring other engineers.

AWS Azure C# .NET React +2 skills

Senior Full-Stack Engineer, AI Products (On-site)

dotsure.co.za (ARC AI) is hiring a Senior Full-Stack Engineer, AI Products, on-site in South Africa, to own frontend interfaces, APIs, and the product layer for AI systems — building chat and human-in-the-loop UX, integrating with core backend systems, and establishing observability in a regulated environment.

AI API Observability

Senior Full Stack Engineer (New York City Metropolitan Area)

HybridNorth AmericaSenior

Senior/Staff Full Stack Engineer building AI-powered products for a Series D-funded TravelTech company whose platform helps travel entrepreneurs automate workflows, manage clients, and scale their businesses. Hybrid role in New York City paying $190,000–$250,000 plus equity.

190K – 250K $