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Top Front End Developer Jobs in Belfast

139+ Job Results
17 Days Ago
Belfast, Northern Ireland
Remote
5-7 Years of Experience
5-7 Years of Experience
Software
As a Frontend Software Engineer at Amplemarket, you will work on building the interface that connects users to the sales platform. You will collaborate with the engineering team to create new product features and enhance user experiences. The tech stack includes Ruby on Rails and React.
4 Days Ago
Belfast, Northern Ireland
Remote
1,213 Employees
3-5 Years of Experience
1,213 Employees
3-5 Years of Experience
Information Technology • Mobile • Consulting
As a Senior Full Stack Engineer specializing in Node.js and React at Yassir, you will be responsible for designing and developing web applications, collaborating with teams to ship new features, ensuring application performance and quality, and participating in complex problem-solving. The role requires at least 3 years of experience in Node.js and React, familiarity with RESTful APIs, database experience, and knowledge of version control and modern tools.
5 Days Ago
Belfast, Northern Ireland
Remote
900 Employees
7+ Years of Experience
900 Employees
7+ Years of Experience
Software
Principal Backend Engineer role at Grafana focusing on driving architectural changes for the platform, working with a distributed systems background, contributing to the open-source culture, designing and maintaining critical systems, mentoring team members, and continuous skill development.
9 Days Ago
Belfast, Northern Ireland
85,636 Employees
1-3 Years of Experience
85,636 Employees
1-3 Years of Experience
Aerospace • Logistics • Security • Software • Cybersecurity
Backend developer role at Northrop Grumman UK focusing on designing, developing, and maintaining critical backend infrastructure. Responsibilities include front-end application development, software lifecycle management, team collaboration, and mentoring junior developers. Remote and hybrid working options available with benefits like private health care and career development opportunities.
4 Days Ago
Belfast, Northern Ireland
Remote
1,213 Employees
7+ Years of Experience
1,213 Employees
7+ Years of Experience
Information Technology • Mobile • Consulting
As a Backend Staff Engineer at Yassir, you will drive technical standards, provide leadership, mentor junior developers, and contribute to scaling up Backend engineers. Responsibilities include designing, building, and maintaining features, managing dependencies, conducting design and code reviews, and participating in architecture discussions. The role also involves conducting technical interviews and improving engineering standards and processes. Must have at least 10 years of experience in backend engineering with NodeJS, strong programming fundamentals, excellent communication skills, and experience with Git and testable code.
7 Days Ago
Belfast, Northern Ireland
880 Employees
1-3 Years of Experience
880 Employees
1-3 Years of Experience
Cloud • Software
The Web Developer position requires experience in modern web applications, HTML, CSS, SCSS, JavaScript, TypeScript, Git, SEO, and accessibility. The role involves creating high fidelity websites and web apps, maintaining existing projects, and collaborating with UX designers. The company fosters a workplace free from discrimination and values diversity in the team.
Top Benefits:
401-K
Dental Insurance
Health Insurance
+3 More
3 Days Ago
Belfast, Northern Ireland
Remote
249 Employees
7+ Years of Experience
249 Employees
7+ Years of Experience
Information Technology • Software • Consulting
Principal Full Stack Engineer at Modus, responsible for supporting new feature development and improving existing features. Must have strong experience with large projects and be passionate about the latest industry trends. Required to create high-quality code from home and ship code daily. Must have overlap with EST hours and reliable high-speed internet. Will work on various projects as part of a remote-first company, including open source contributions, teaching and learning opportunities, client interactions, and access to learning benefits.
12 Days Ago
Belfast, Northern Ireland
64 Employees
7+ Years of Experience
64 Employees
7+ Years of Experience
Cloud • Digital Media • Software
Join Human Made as a freelance Senior Web Engineer, working on interesting and complex projects alongside industry's top talent. Responsibilities include project ownership, assisting other developers, architecting projects, bug fixes, improving tooling, and providing architectural input. Must have comprehensive understanding of modern web development, with emphasis on PHP and JavaScript in a WordPress context.
9 Days Ago
Belfast, Northern Ireland
Remote
3,700 Employees
1-3 Years of Experience
3,700 Employees
1-3 Years of Experience
Cloud • Fintech • Cryptocurrency • NFT • Web3
Aspiring backend engineers are sought by Coinbase to build the next generation of crypto-forward products and features. The role involves solving complex technical problems, working on web-scale applications and blockchain technology, and making cryptocurrency accessible to a global audience through real-time applications and secure infrastructure.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+38 More
4 Days Ago
Belfast, Northern Ireland
Remote
2,135 Employees
3-5 Years of Experience
2,135 Employees
3-5 Years of Experience
Information Technology • Consulting
Seeking a Senior Mendix Developer with 4+ years of experience to lead the development of a cutting-edge application for a Fortune 500 company. Responsibilities include design, development, deployment using Mendix and React, collaboration with cross-functional teams, and ensuring alignment with business goals.
8 Days Ago
Belfast, Northern Ireland
Remote
1,465 Employees
3-5 Years of Experience
1,465 Employees
3-5 Years of Experience
Software • Cybersecurity
Seeking a talented Backend Engineer to join the dynamic Research and Development team at Nord Security. Responsibilities include writing clear code, creating useful APIs, contributing to technical decisions, and more. Required skills include PHP, OOP principles, API design, MySQL, and experience with big data quantities.
20 Days Ago
Belfast, Northern Ireland
Remote
578,950 Employees
3-5 Years of Experience
578,950 Employees
3-5 Years of Experience
Big Data • Cloud • Logistics • Machine Learning • Retail
As a Software Engineer III - Front End at Data Ventures, you will be responsible for translating requirements into technical solutions to create the best user experience for customers. You will collaborate with project teams, conduct troubleshooting, provide user support, and participate in project discovery phases.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+21 More
8 Days Ago
Belfast, Northern Ireland
82 Employees
3-5 Years of Experience
82 Employees
3-5 Years of Experience
Greentech • Energy
Join Lunar Gridshare as a Staff Backend Software Engineer to work on backend systems for energy management, focusing on solar, home energy storage systems, and electric vehicles. Responsibilities include building infrastructure, ensuring system quality, designing APIs, and improving development practices. Key skills include cloud architecture, Typescript or Rust expertise, functional programming experience, Unix-like systems familiarity, and autonomy.
14 Days Ago
Belfast, Northern Ireland
Remote
6,766 Employees
7+ Years of Experience
6,766 Employees
7+ Years of Experience
Software
The Senior Software Engineer I, Navigation Backend at HubSpot is responsible for developing and scaling critical backend systems like Notifications and Navigation platforms. They will work on writing and shipping production code with meaningful impact, envisioning and analyzing new features, and collaborating with cross-functional teams to improve user experience.
7 Days Ago
Belfast, Northern Ireland
Remote
1,004 Employees
7+ Years of Experience
1,004 Employees
7+ Years of Experience
HR Tech
Senior Backend Engineer role at Remote focused on building tools, APIs, and integrations for one of their products. Responsibilities include leading team projects, product work, code reviews, and contributing to the shared codebase. Must have experience with Elixir, Postgres, and CI/CD tools.
14 Days Ago
Belfast, Northern Ireland
Remote
6,766 Employees
7+ Years of Experience
6,766 Employees
7+ Years of Experience
Software
Join the Design System team at HubSpot as a Senior Software Engineer I, specializing in frontend development. Responsibilities include developing and maintaining a design system using React/Typescript, collaborating with UX designers, integrating the design system into web applications, and continuously improving it based on feedback and industry trends.
9 Days Ago
Belfast, Northern Ireland
85,636 Employees
3-5 Years of Experience
85,636 Employees
3-5 Years of Experience
Aerospace • Logistics • Security • Software • Cybersecurity
As a Backend developer at Northrop Grumman UK, you will design, develop, and maintain critical backend infrastructure using modern technologies. You will work on exciting projects with complex challenges and collaborate with cross-functional teams.
16 Days Ago
Belfast, Northern Ireland
Remote
275 Employees
3-5 Years of Experience
275 Employees
3-5 Years of Experience
Big Data Analytics
Looking for a Back End Developer with at least 3 years of experience, strong foundation in programming, expertise in Ruby on Rails (or Python), and familiarity with cloud environments and AWS. Must have experience in full development life cycle and optimizing data pipelines.
Top Benefits:
401-K
Company Outings
Dental Insurance
+18 More
8 Days Ago
Belfast, Northern Ireland
Remote
451 Employees
3-5 Years of Experience
451 Employees
3-5 Years of Experience
Consulting
We are looking for a Full Stack Developer to produce scalable software solutions. You’ll be part of a cross-functional team responsible for the entire software development life cycle, from conception to deployment.
8 Days Ago
Belfast, Northern Ireland
Remote
2,030 Employees
7+ Years of Experience
2,030 Employees
7+ Years of Experience
Financial Services
Senior Backend Engineer role at a fintech company focused on creating equitable environments and embracing diversity. Responsibilities include collaborating with cross-functional teams, writing application code in Go, and working with tools like Cassandra, Kafka, and Kubernetes.
10 Days Ago
Belfast, Northern Ireland
Remote
147 Employees
3-5 Years of Experience
147 Employees
3-5 Years of Experience
Blockchain
Backend Developer role focused on system design, feature development, infrastructure, team building, and interfacing with users for Trust Wallet. Requires 4+ years of software engineering experience with 2+ years in Go. Knowledge of microservice-based architectures, cloud environments, databases, and containerization is essential.
9 Days Ago
Belfast, Northern Ireland
Remote
900 Employees
7+ Years of Experience
900 Employees
7+ Years of Experience
Blockchain • Software • Web3
Senior Backend Software Engineer role working on growing a multi-chain EVM Datalake for Metamask. Responsibilities include extracting and indexing on-chain data, design and leading complex feature areas autonomously.
Top Benefits:
401-K
Company Equity
Company Outings
+26 More
8 Days Ago
Belfast, Northern Ireland
Remote
451 Employees
3-5 Years of Experience
451 Employees
3-5 Years of Experience
Consulting
We are looking for a passionate React Developer to join our engineering team and deliver high-quality software solutions for web and mobile applications.
14 Days Ago
Belfast, Northern Ireland
1,419 Employees
5-7 Years of Experience
1,419 Employees
5-7 Years of Experience
Marketing Tech • Software • Analytics
Looking for a Senior Software Engineer to develop shared libraries for user interfaces and backend services, aiming to deliver smarter and reliable systems. Collaborate with Agile team, contribute to high-quality software, and engage in discussions for technical solutions. Requires 5+ years of software engineering experience with expertise in back-end development using Python and front-end development using React and Typescript.
12 Days Ago
Belfast, Northern Ireland
Remote
578,950 Employees
3-5 Years of Experience
578,950 Employees
3-5 Years of Experience
Big Data • Cloud • Logistics • Machine Learning • Retail
The Senior Software Engineer will be responsible for full stack development using technologies like React JS, React Native, Java, Spring, Kubernetes, NoSQL, and Kafka. They will work on building tools to enable Associates to serve customers at checkout lanes, participate in design and code reviews, and ensure observability and measurement in projects. The role requires 4+ years of full stack development experience, proficiency in back-end and front-end technologies, experience with micro-services architecture and distributed systems, and strong collaboration skills.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+21 More
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