12,398 Senior Full-Stack jobs

Senior Java Quarkus Full Stack Engineer - 12 Months - Halifax (2 Days)- Inside IR35

UKContractSenior

API API Testing BDD CI/CD Cloud +26 skills

12-month contract (Inside IR35) with a leading UK banking client, hybrid in Halifax with 2 days/week on-site. The senior engineer designs, builds and runs secure cloud-native Java/Quarkus applications with React frontends on GCP (Cloud Run, GKE, Pub/Sub), owning the full lifecycle plus technical leadership and mentoring.

Plexus Resource Solutions Ltd

Senior Full-Stack Engineer

RemoteUKSenior

API Next.js React TypeScript

Senior full-stack developer building web and mobile apps, customer demos, and developer tools for a start-up whose products protect sensitive data and secure financial transactions. You own features across the stack with TypeScript, React/Next.js, and backend APIs, from brief through deployment. Fully remote; must be based in Singapore.

up to 150K $

Smart Communications group

Senior Full-Stack Engineer (Java/Spring) — Remote

RemoteUKSenior

Senior full-stack engineer extending Smart Communications' enterprise customer-engagement product end-to-end, from the Java/Spring back end to the browser, as part of an Agile team that owns features, automated tests, and deployment pipelines. Remote role with occasional visits to the Covent Garden, London office.

Agile Java

Sellick Partnership

Senior Full-Stack Engineer – Defence Tech (Hybrid Bath)

Angular API ERP Event Driven Architecture Java +4 skills

Senior full-stack engineer on a major UK defence technology programme in Bath (hybrid). Day to day you build across a complex platform — frontend and backend in Java, TypeScript, Angular and SQL — designing REST APIs and event-driven integrations that link a data lakehouse, ERP platforms and external partner systems.

RedRock Consulting Ltd

Senior Full-Stack Engineer: Ship Features Fast

UKContractSenior

Azure CI/CD FastAPI GitHub GitHub Actions +6 skills

RedRock Consulting is hiring a senior full-stack contractor in London to own features end to end: building React/TypeScript front ends, Python/FastAPI or Node.js back ends, and SQL/NoSQL data layers. Work ships via GitHub Actions CI/CD in containers, deploying to Azure.

Emma - we are hiring!

Senior Full Stack Engineer

BigQuery Cloud CockroachDB Docker GCP +15 skills

Senior Full Stack Engineer at Emma, a UK personal-finance (money management) app, working across the backend and mobile/web apps on new features and integrations. Core stack: TypeScript, React/React Native, Next.js, gRPC, MySQL/CockroachDB/Redis on GCP with Kubernetes; office-based in London Monday to Friday.

Hawk-Eye Innovations (HEI)

Senior Full Stack Engineer - (HawkAI)

HybridUKContractSenior

Agentic AI AI API AWS AWS Bedrock +21 skills

Join Our Team as a Senior Full-Stack Software Engineer (HawkAI) at Hawk-Eye Innovations Location: Hybrid working – minimum 2 days per week in the office Office: Budapest, Váci út 144-150, 1138 Hungary Contract:…

McGregor Boyall

Senior Full Stack Engineer

HybridUKFull-timeSenior

Agile API API Gateway AWS CI/CD +18 skills

Senior full stack engineer building a greenfield, next-generation trading platform for a global fintech in collaboration with AWS. Owns the full lifecycle — design, coding, testing, deployment — using TypeScript/React, Node.js/Java/C# backends, AWS serverless, Terraform and CI/CD, plus mentoring juniors. London, 3 days/week in office.

up to 100K £

Bazeta

Senior Full-Stack Engineer — NHS Healthtech, Equity

Senior/Staff full-stack engineer at Healthtech-1, an NHS-focused healthtech startup, building and owning end-to-end features in healthcare software while working directly with customers. Based 4+ days a week from the London Stratford office; requires 7+ years of experience and a startup/scale-up mindset.

Sellick Partnership

Senior Full Stack Engineer

HybridUKFull-timeSenior

Angular API CI/CD Data Warehousing ERP +8 skills

Senior full-stack engineer on a multi-year UK defence technology transformation programme, based in Bath (hybrid, ~3 days onsite). Day to day: building user-facing apps, backend services and integrations with ERP, data lakehouse and partner systems, primarily in Java, SQL, TypeScript and Angular, with REST/event-driven APIs and CDC.

LinuxRecruit

Senior Full Stack Engineer

UKSenior

Senior full-stack engineer at an early-stage AI startup in central Munich building intelligent agents that automate complex business workflows. Working directly with the founders, they own the product from idea to production, spanning full-stack engineering and applied AI such as LLM orchestration and agent behaviour.

Agentic AI AI LLM

TRAKD

Full Stack Engineer

Accessibility Agile Analytics API Api Design +30 skills

Senior full-stack engineer at a leading UK ecommerce retailer: build customer-facing features end to end — React/Next.js front ends, Node.js/TypeScript services and REST/GraphQL APIs — optimising performance, SEO and conversion on high-traffic journeys like search and checkout. Hybrid, 3 days a week in a central London office.

80K – 120K £

Dns Info Ltd

Senior Full Stack Java Engineer

AI Angular AWS Cloud ECS +10 skills

Senior full-stack engineer (8+ years) working 5 days onsite in Glasgow, building apps with Java Spring Boot backends and Angular/React frontends on Postgres/Cloud SQL, deployed via Kubernetes/ECS on AWS with Grafana/Splunk monitoring. AI-driven development experience is a must.

Dns Info Ltd

Senior Full-Stack Java Engineer - AI, Cloud & Kubernetes

UKSenior

AI Angular AWS Cloud DNS +13 skills

Senior full-stack engineer in Glasgow with 8+ years' experience working on AI-driven development: building apps with Java Spring Boot, Angular/React, and PostgreSQL/Cloud SQL, deploying on Kubernetes and AWS ECS, and handling observability with Grafana and Splunk.

The Opportunity Hub UK

Full Stack Developer - Remote (Philippines-Based)

UKFull-timeSenior

AI API Authentication AWS Next.js +5 skills

A senior full-stack developer (Philippines-based, remote) takes ownership of an existing UK recruitment platform, maintaining and improving the Next.js/React frontend, TypeScript codebase, Prisma/PostgreSQL database, and AWS infrastructure while debugging production issues and adding AI-powered features.

40K – 60K PHP / mo

Grow UP HR

RemoteLATAMContractSenior

SR Full Stack Engineer - REMOTO

Argentina

Remote (Argentina-based, US East Coast hours) contractor role as a Senior Full Stack Engineer supporting an AI-enabled internal developer platform: reviewing and hardening AI-generated code, building apps with React, JavaScript, Python/FastAPI and AWS, and guiding business users. Roughly 50% technical and 50% business-facing, paid in USD.

AI AWS Cloud FastAPI Git +3 skills

Grow UP HR

RemoteLATAMContractSenior

Senior full stack engineer - Remoto

Argentina

Senior full stack consultant building and evolving investment-management platforms: React frontends with Python/Java backends, AWS cloud services (Lambda, Athena, S3), and Snowflake-based data warehousing, pipelines, and reporting integrations for finance/treasury teams. Remote contractor role based in Argentina, paid in USD.

Analytics Athena AWS Claude Code Cloud +7 skills

Airbyte

Open 117d HybridNorth AmericaSenior H-1B sponsor history

Senior Software Engineer, Platform Fullstack

United States

Senior fullstack engineer on Airbyte's Platform team, onsite in San Francisco, building internal developer tooling, deployment/observability dashboards, and customer-facing features for Airbyte Cloud and Flex. Core stack is React, TypeScript, and backend APIs and services.

Accessibility Agentic AI AI Airbyte API +20 skills

196K – 235K $

Stash