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Top Software Engineer Jobs in Belfast

337+ Job Results
3 Days Ago
Belfast, Northern Ireland
Remote
303 Employees
7+ Years of Experience
303 Employees
7+ Years of Experience
AdTech • Marketing Tech
Principal Software Engineer role at UNiDAYS focusing on building innovative solutions for mobile apps. Responsibilities include delivering impactful features, mentoring other engineers, providing technical feedback, and championing user-centric solutions. Preferred experience in modern mobile technologies, app performance optimization, UI/UX design, architectural design, and test automation.
3 Days Ago
Belfast, Northern Ireland
Remote
303 Employees
7+ Years of Experience
303 Employees
7+ Years of Experience
AdTech • Marketing Tech
A Principal Software Engineer role at UNiDAYS focused on building innovative solutions for mobile apps using KMM, SwiftUI, and Jetpack Compose. Responsibilities include delivering impactful features, mentoring engineers, and championing user-centric solutions. Requires expertise in modern mobile technologies, app performance optimization, UI/UX principles, and architectural design.
7 Days Ago
Belfast, Northern Ireland
880 Employees
3-5 Years of Experience
880 Employees
3-5 Years of Experience
Cloud • Software
Opportunity for a Software Engineer at Canonical in the Commercial Systems unit, responsible for security, distributed systems, internal operations, and Salesforce. Tasks include coding in Go or Python, collaborating on technical designs, deploying and operating services, and improving engineering practices. Requires a Bachelor's degree in Computer Science, experience with high-level languages like Go or Python, building distributed systems and APIs, and excellent communication skills. Remote role based in the EMEA region with occasional travel.
Top Benefits:
401-K
Dental Insurance
Health Insurance
+3 More
4 Days Ago
Belfast, Northern Ireland
Remote
35 Employees
3-5 Years of Experience
35 Employees
3-5 Years of Experience
Information Technology • Consulting
As an Azure B2C Software Engineer, responsible for developing and maintaining consumer-facing Azure B2C applications, integrating Azure services, enhancing user experience, ensuring security and compliance, documenting system configurations, and collaborating with internal teams.
5 Days Ago
Belfast, Northern Ireland
Remote
84 Employees
3-5 Years of Experience
84 Employees
3-5 Years of Experience
Software
Join Aztec as a Software Engineer focusing on cryptography in the development of a first-of-its-kind Layer 2 with private smart contracts. Responsibilities include designing efficient solutions, implementing and optimizing cryptographic libraries, and collaborating with the engineering team. Requires a Bachelor's degree, 3+ years of Rust engineering experience, and 1+ year of cryptography engineering experience.
7 Days Ago
Belfast, Northern Ireland
880 Employees
3-5 Years of Experience
880 Employees
3-5 Years of Experience
Cloud • Software
Building a team focused on Rust programming language and ecosystem on Ubuntu to deliver the best Rust runtime and developer experience. Opportunity for software engineers passionate about open source, Linux systems, software architectures, and Rust.
Top Benefits:
401-K
Dental Insurance
Health Insurance
+3 More
5 Days Ago
Belfast, Northern Ireland
7+ Years of Experience
7+ Years of Experience
Artificial Intelligence • Healthtech • Information Technology • Other • Analytics
Experienced Software Engineer III needed to work on the development of the Researchfish platform. Responsibilities include developing front-ends in react.js, consuming APIs, collaborating with UX team, writing clean code, participating in code reviews, and guiding technical direction within the team.
Top Benefits:
401-K
Dental Insurance
Health Insurance
+3 More
9 Days Ago
Belfast, Northern Ireland
Remote
91 Employees
3-5 Years of Experience
91 Employees
3-5 Years of Experience
Database • Analytics
Develop features for the ClickHouse core database in C++, collaborate with Cloud engineering team, improve robustness of ClickHouse technology, support the Support Engineering team, work with the open-source community.
17 Days Ago
Belfast, Northern Ireland
880 Employees
5-7 Years of Experience
880 Employees
5-7 Years of Experience
Cloud • Software
As a Software Engineer at Canonical, you will work on building modeling software for systems like OpenStack, Ceph, and Kubernetes with a focus on distributed storage and Ceph. Responsibilities include writing high-quality Python and Golang software, collaborating with a global team, debugging issues, and developing software for Ceph storage management.
Top Benefits:
401-K
Dental Insurance
Health Insurance
+3 More
5 Days Ago
Belfast, Northern Ireland
Remote
73 Employees
5-7 Years of Experience
73 Employees
5-7 Years of Experience
Machine Learning • Software
Looking for a Senior Frontend Software Engineer to build scalable and maintainable modern web applications for Neptune, aiming to be the MLOps standard for data scientists worldwide. Responsibilities include building scalable, portable, and flexible web UI applications, cooperating with other engineers, choosing tools, defining architecture, and implementing new features. Expectations include a solid background in Computer Science, 5+ years experience with TypeScript and React, excellent code review skills, hunger for knowledge, and optional knowledge of Machine Learning concepts.
20 Days Ago
Belfast, Northern Ireland
Remote
578,950 Employees
7+ Years of Experience
578,950 Employees
7+ Years of Experience
Big Data • Cloud • Logistics • Machine Learning • Retail
Join Walmart's Content Relevancy team as a Principal Software Engineer. Architect and develop search solutions using technologies like Elastic Search and OpenAI. Lead large-scale projects, collaborate with cross-functional teams, and provide technical guidance. Work in an agile environment to enhance search products and improve processes. Help drive efficiency across Walmart globally.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+21 More
5 Days Ago
Belfast, Northern Ireland
Remote
123 Employees
7+ Years of Experience
123 Employees
7+ Years of Experience
Software
Join Voltron Data's team as a Senior Query Optimizer Software Engineer. You will work on supporting and growing the Voltron Data and Apache Arrow ecosystems, building and maintaining a SQL parser and query optimizer for large-scale query execution engines. This role requires expertise in SQL, query optimization, Apache Arrow, and programming languages such as C++, Python, and R.
12 Days Ago
Belfast, Northern Ireland
Hybrid
2,400 Employees
7+ Years of Experience
2,400 Employees
7+ Years of Experience
Artificial Intelligence • Cloud • Information Technology • Sales • Security • Software • Cybersecurity
Lead Software Engineer responsible for driving and proposing strategies around complex technical problems, delivering architecture of major components, providing technical guidance and mentorship, and working with the Product and Engineering team to create innovative products on the Insight platform using Java and other technologies.
Top Benefits:
401-K
401-K Matching
Child Care Benefits
+45 More
20 Days Ago
Belfast, Northern Ireland
Remote
578,950 Employees
5-7 Years of Experience
578,950 Employees
5-7 Years of Experience
Big Data • Cloud • Logistics • Machine Learning • Retail
As a Senior Software Engineer at Walmart's Indirect Procurement Technology team, you will be responsible for developing and deploying complex functional objects globally, analyzing and configuring SAP applications, evaluating application performance, and providing future-proof solutions. You will collaborate with international teams and drive customer-centric solutions for strategic initiatives.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+21 More
5 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
This Software Engineer III - Front End position at Walmart Global Tech involves designing and developing in large-scale, complex projects, collaborating with cross-functional teams, and working on cutting-edge JavaScript-based technologies for UI features.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+21 More
17 Days Ago
Belfast, Northern Ireland
Remote
259 Employees
3-5 Years of Experience
259 Employees
3-5 Years of Experience
Information Technology • Other • Software
The Software Engineer will be responsible for delivering innovative solutions and services, building scalable SaaS applications, writing high-quality code, collaborating across teams, and advocating for better performance and efficiency. The role requires 3+ years of experience in API integration and maintaining APIs, familiarity with API protocols, and strong problem-solving skills.
20 Days Ago
Belfast, Northern Ireland
Remote
578,950 Employees
7+ Years of Experience
578,950 Employees
7+ Years of Experience
Big Data • Cloud • Logistics • Machine Learning • Retail
Seeking a Principal Software Engineer for a dynamic and innovative team responsible for driving transformative projects and foundational improvements in Walmart's People Technology organization. Responsibilities include defining and maintaining architecture roadmap, providing technical leadership, designing complex systems, driving automation, and investigating the latest technology for future business needs.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+21 More
12 Days Ago
Belfast, Northern Ireland
Remote
10,000 Employees
10,000 Employees
Cloud • Information Technology • Sales • Security • Cybersecurity
Seeking a talented Senior Cloud Software Engineer to join the growing Next-Gen SIEM team at CrowdStrike. Responsibilities include designing and developing a threat detection engine in Golang, collaborating with distributed teams, and supporting security analysts in incident management and threat hunting.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+47 More
21 Days Ago
Belfast, Northern Ireland
Remote
578,950 Employees
7+ Years of Experience
578,950 Employees
7+ Years of Experience
Big Data • Cloud • Logistics • Machine Learning • Retail
As a Principal Software Engineer, you will lead a team of engineers in developing new products, features, and proof-of-concepts for the ADE's Campus Technology team. You will be responsible for translating project requirements into technical solutions, code development, testing, and ensuring on-time delivery. Collaboration with cross-functional partners, product teams, and UX designers is key to success in this role.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+21 More
20 Days Ago
Belfast, Northern Ireland
Remote
578,950 Employees
5-7 Years of Experience
578,950 Employees
5-7 Years of Experience
Big Data • Cloud • Logistics • Machine Learning • Retail
Join the innovative and dynamic People Technology engineering team as a Senior Software Engineer at Walmart. Develop digital solutions to support Walmart associates, utilize event-driven and microservices architecture, work on application development, and contribute to the modernization efforts in the People Technology organization.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+21 More
7 Days Ago
Belfast, Northern Ireland
Remote
880 Employees
3-5 Years of Experience
880 Employees
3-5 Years of Experience
Cloud • Software
The role of a Go Software Engineer, Commercial Systems at Canonical involves developing and operating services related to security, distributed systems, internal business operations, and Salesforce integration. Responsibilities include coding in Go or Python, collaborating on technical designs, deploying services, and improving engineering and operations practices.
Top Benefits:
401-K
Dental Insurance
Health Insurance
+3 More
7 Days Ago
Belfast, Northern Ireland
Remote
702 Employees
3-5 Years of Experience
702 Employees
3-5 Years of Experience
Food
Develop backend applications to support and empower restaurant partners in managing their daily operations and attracting more customers. Collaborate with cross-functional teams to execute product roadmap and shape product vision.
13 Days Ago
Belfast, Northern Ireland
Hybrid
1,422 Employees
7+ Years of Experience
1,422 Employees
7+ Years of Experience
Software
Seeking a Staff Software Engineer to join the Insights Back-End team at Bazaarvoice. Responsibilities include building data pipeline, data store, and API layer for client-facing dashboards and reporting tools. Requires 7+ years of experience in building scalable distributed systems and expertise in various programming languages and technologies.
Top Benefits:
401-K
Company Outings
Dental Insurance
+17 More
17 Days Ago
Belfast, Northern Ireland
880 Employees
7+ Years of Experience
880 Employees
7+ Years of Experience
Cloud • Software
Software Engineer role at Canonical for Multipass, a workstation mini-cloud providing on-demand VMs for build and prototyping. Responsibilities include leading design, coding, and collaborating with a distributed team. Requires expertise in modern C++, cross-platform development, software testing, and hypervisor technologies.
Top Benefits:
401-K
Dental Insurance
Health Insurance
+3 More
19 Days Ago
Belfast, Northern Ireland
Remote
578,950 Employees
7+ Years of Experience
578,950 Employees
7+ Years of Experience
Big Data • Cloud • Logistics • Machine Learning • Retail
Seeking a Senior Distinguished Engineer to lead and mentor teams in developing best practices, architectural designs, and technology solutions in the field of software engineering. The role involves collaborating with cross-functional teams, staying updated on emerging technologies, ensuring high-quality system delivery, and driving a culture of accountability and inclusivity.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+21 More
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