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Top Software Engineer Jobs in Belfast

982+ Job Results
8 Days Ago
Belfast, Northern Ireland
Remote
219 Employees
Senior level
219 Employees
Senior level
Blockchain • Machine Learning • Financial Services • Cryptocurrency
As a Back-End Software Engineer at XBorg, you will build and scale backend systems, optimize performance, monitor system metrics, prioritize security, develop and maintain APIs, and troubleshoot technical issues. You'll work with high traffic and large datasets while implementing efficient and secure solutions.
8 Days Ago
Belfast, Northern Ireland
Remote
22 Employees
Mid level
22 Employees
Mid level
Fintech • Financial Services
As a Software Engineer, Portfolio Strategy, you will design, develop, and implement features for an automated trading system, including data pipelines and machine learning models, while ensuring code quality and stability. You will collaborate with strategists and data scientists to support system deployment and operation in a high-stakes financial environment.
8 Days Ago
Belfast, Northern Ireland
1,200 Employees
Mid level
1,200 Employees
Mid level
Big Data • Cloud • Software • Database
As a Software Engineer II on the Developer Productivity team at Fivetran, you will automate manual processes and develop internal tools, enhancing productivity for engineering and other teams. You will troubleshoot issues, create documentation, and collaborate with stakeholders to improve automation strategies.
8 Days Ago
Belfast, Northern Ireland
Remote
3,400 Employees
Senior level
3,400 Employees
Senior level
Cloud • Social Impact • Software
The Senior Full-Stack Software Engineer will deliver custom websites and APIs, oversee application design and system architecture, and ensure operational requirements are met. They will provide guidance on technical challenges, support high performing systems in an agile environment, and collaborate within a remote-first team.
9 Days Ago
Belfast, Northern Ireland
1,900 Employees
Mid level
1,900 Employees
Mid level
Big Data • Cloud • Information Technology • Software • Business Intelligence • Cybersecurity
As a Staff UI Software Engineer at Flexera, you will lead technical strategies and collaborate with product teams to build advanced front-end applications using modern technologies. Responsibilities include mentoring junior developers, contributing to the technical roadmap, and ensuring high-quality UI design and implementation within a collaborative environment.
9 Days Ago
Belfast, Northern Ireland
Remote
2,825 Employees
Mid level
2,825 Employees
Mid level
Information Technology • Software
The Software Engineer II is responsible for designing, developing, troubleshooting, and debugging software programs, specifically for the ChangeMan ZMF product. The role involves product maintenance, defect resolution, executing various testing methods, and handling multiple priorities while ensuring quality standards are met.
17 Days Ago
Belfast, Northern Ireland
850 Employees
Senior level
850 Employees
Senior level
Fintech • HR Tech • Payments • Social Impact • Financial Services
The Senior Software Engineer will develop and design DailyPay's product offerings, collaborating with software engineers, product management, and UX teams. Responsibilities include writing robust code in modern programming languages and developing microservices using cloud computing services while adhering to best practices in security and data management.
11 Days Ago
Belfast, Northern Ireland
Remote
1,151 Employees
Senior level
1,151 Employees
Senior level
Other
Senior Golang Software Engineer role at IDT, responsible for full software development life-cycle, working on high-performing applications, and driving technical excellence. Requires 5+ years of production experience, deep knowledge of Golang, and proficiency in modern design patterns.
13 Days Ago
Belfast, Northern Ireland
Remote
50 Employees
Entry level
50 Employees
Entry level
Blockchain • Web3
Maintain and improve services written in Rust, communicate and collaborate with a fully distributed team, collaborate with Ethereum and be active in Ethereum engineering forums.
14 Days Ago
Belfast, Northern Ireland
Remote
1,700 Employees
Mid level
1,700 Employees
Mid level
Security • Cybersecurity
The Software Engineer will develop and maintain web applications using Python and Django, participate in the software development lifecycle, conduct code reviews, enhance application security, automate testing, document processes, and collaborate with cybersecurity teams to identify and mitigate vulnerabilities.
21 Days Ago
Belfast, Northern Ireland
Remote
4,700 Employees
Senior level
4,700 Employees
Senior level
Cloud • Fintech • Information Technology • Machine Learning • Software
As a Senior Software Engineer at Xero, you will develop and manage scalable software solutions, conduct high-quality testing, troubleshoot technical issues, and participate in a cross-functional environment. You'll mentor peers, contribute to the team's engineering standards, and champion agile practices while automating manual processes to enhance productivity and customer satisfaction.
15 Days Ago
Belfast, Northern Ireland
Remote
73 Employees
Senior level
73 Employees
Senior level
Machine Learning • Software
As a Staff Frontend Software Engineer, you will lead architectural design and development of key web UI features while collaborating with a small engineering team. Your role involves driving solutions for complex problems, participating in code reviews, and constantly seeking ways to improve product and team processes.
15 Days Ago
Belfast, Northern Ireland
Remote
400 Employees
Senior level
400 Employees
Senior level
Computer Vision • Machine Learning • Mobile • Productivity • Software
As a Senior iOS Mobile Software Engineer, you will be responsible for architecting and implementing features for the ShelfView Capture App, improving its stability, and collaborating with stakeholders to enhance the user experience for retail data capture.
16 Days Ago
Belfast, Northern Ireland
Remote
8,686 Employees
Entry level
8,686 Employees
Entry level
Appliances • Industrial • Manufacturing
The Software Developer I will design, develop, and implement software products for business projects, collaborating with teams and stakeholders. Responsibilities include coding, testing, quality assurance, and maintaining documentation while staying updated on new technologies and best practices.
16 Days Ago
Belfast, Northern Ireland
Remote
299 Employees
Entry level
299 Employees
Entry level
Gaming • News + Entertainment • Sports
As a Software Engineer, you'll enhance user experiences across our gaming publications by contributing high-quality code, collaborating with team members, addressing technical issues, and ensuring optimal website performance and responsiveness.
16 Days Ago
Belfast, Northern Ireland
Remote
4,900 Employees
Mid level
4,900 Employees
Mid level
Fintech • Payments
As a Software Engineer in the Data team, you will design, test, and implement data products and systems, utilizing big data and AI technologies. You will collaborate with stakeholders, maintain CI/CD pipelines, and support live data products while fostering continuous learning within the team.
18 Days Ago
Belfast, Northern Ireland
Remote
Entry level
Entry level
Software
As a Fullstack Software Engineer at Amplemarket, you will develop crucial user experiences and product features in an AI-powered sales platform. The role involves solving complex engineering challenges from NLP models to scaling data solutions, contributing to a critical tool for B2B sales teams.
19 Days Ago
Belfast, Northern Ireland
880 Employees
Entry level
880 Employees
Entry level
Cloud • Software
As a Go Software Engineer in the Commercial Systems unit, you will design, develop, and maintain services for Ubuntu and open-source products while focusing on security and distributed systems. You will collaborate with teams on technical designs, deploy services, and enhance engineering practices, contributing to projects like Candid and JIMM. This role is fully remote within the EMEA region.
19 Days Ago
Belfast, Northern Ireland
880 Employees
Mid level
880 Employees
Mid level
Cloud • Software
As a System Software Engineer, you will enhance the GCC and LLVM ecosystems on Ubuntu, focusing on modern C and C++. Responsibilities include writing high-quality code, debugging, code reviews, and collaborating with teams to improve the user experience. You'll also mentor junior engineers and contribute to the architecture decisions affecting Ubuntu’s performance and reliability.
19 Days Ago
Belfast, Northern Ireland
Remote
61 Employees
Mid level
61 Employees
Mid level
Information Technology • Software
Seeking a Software Engineer with 3+ years of experience in PHP development to assist in designing, developing, and installing software solutions. Responsible for full lifecycle software development, writing efficient code, and integrating software components. Experience with ReactJS and test-driven development is advantageous.
20 Days Ago
Belfast, Northern Ireland
880 Employees
Entry level
880 Employees
Entry level
Cloud • Software
As a System Software Engineer focusing on Rust, you will enhance the Rust ecosystem within Ubuntu, collaborating with a distributed team, debugging issues, writing new code, and mentoring junior engineers. Your work will impact Ubuntu's performance and developer experience across various platforms including cloud and desktop.
20 Days Ago
Belfast, Northern Ireland
880 Employees
Senior level
880 Employees
Senior level
Cloud • Software
As a Senior Software Engineer at Canonical, you will develop and integrate systems for the embedded Linux environment, focusing on security and developer experience. Responsibilities include developing system daemons with REST APIs, debugging, collaborating with a distributed team, and maintaining boot mechanisms across various CPU architectures.
20 Days Ago
Belfast, Northern Ireland
880 Employees
Mid level
880 Employees
Mid level
Cloud • Software
This role involves resolving complex issues related to Ubuntu and open source software, debugging and fixing bugs, maintaining relationships with teams, reviewing code, and participating in upstream software communities. It requires strong Linux and programming skills, with a focus on cloud technologies like Ceph and OpenStack.
20 Days Ago
Belfast, Northern Ireland
880 Employees
Entry level
880 Employees
Entry level
Cloud • Software
As a Software Engineer on the Solutions Engineering team, you will design and deliver open-source software operations code using Python and Golang. You'll collaborate with infrastructure operations teams, develop monitoring and alerting infrastructure, and promote best engineering practices. The role offers opportunities for travel and fostering a collaborative engineering culture.
20 Days Ago
Belfast, Northern Ireland
880 Employees
Entry level
880 Employees
Entry level
Cloud • Software
As a Software Engineer, you'll design and deliver open source software operations code in Python while ensuring reliable, efficient, and scalable solutions on Kubernetes. You'll work across the Linux stack, follow agile practices, and help foster a collaborative engineering culture at Canonical.
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