1 to 25 of 28 Permanent Clean Code Jobs in County Antrim

Senior Backend Engineer

Hiring Organisation
Inspire People
Location
Belfast, County Antrim, Northern Ireland, United Kingdom
Employment Type
Permanent, Part Time, Work From Home
Salary
£80,000
products. * Develop and maintain platform tooling, automation, observability, monitoring and CI/CD capabilities. * Build software solutions using Python and modern engineering practices. * Write clean, maintainable code and infrastructure-as-code solutions to support service delivery. * Embed Site Reliability Engineering principles including SLIs, SLOs, error budgets … with engineers, architects, product teams and stakeholders whilst coaching and mentoring colleagues. Essential Skills for the Senior Backend Engineer (Site Reliability) include: * Experience writing clean, maintainable code in at least one programming language. * Experience designing, operating and improving distributed systems, focusing on reliability, performance and user outcomes. * Experience ...

Remote Senior Software Engineer

Hiring Organisation
Aveni
Location
Carrickfergus, United Kingdom
DynamoDB, RDS) NestJS or equivalent back-end frameworks Microservices and event-driven architectures We also actively embrace AI coding assistants (such as Claude Code) to speed up development, improve code quality and reduce repetitive work — and we encourage engineers to use these tools effectively. What we’re looking … experience developing UIs with React Solid understanding of cloud-native engineering on AWS Experience with microservices, messaging patterns and distributed systems A commitment to clean code, testing, observability and operational excellence A proactive and motivated mindset — someone who wants to build, ship and iterate quickly Interest ...

Senior Software Developer

Location
Belfast, Northern Ireland, United Kingdom
Specification, Design, and Planning of upcoming features Build, maintain, test (including automated functional tests) and release our well architected services by writing correct and clean code consistently and following best practices Apply the Enea software development process which adopt Agile methodologies along with modern CI/CD tooling ...

Lead Java Developer (VP)

Location
Belfast City District, Northern Ireland, United Kingdom
with a strong focus on onboarding new regulations. This is an active engineering leadership position where you will guide a team of developers, write clean, production-grade code, design system components, and troubleshoot complex data processing issues. You will work closely within an Agile team, collaborating with business … translate regulatory requirements into reliable, scalable software solutions. Lead and Mentor: Guide and support a team of software engineers, fostering a collaborative environment, conducting code reviews, and promoting technical excellence. Regulatory Onboarding: Drive the technical execution of onboarding new regulatory requirements, ensuring the platform is adaptable to evolving global ...

Senior Full Stack Developer (Java/React)

Location
Belfast City District, Northern Ireland, United Kingdom
working in mixed/virtual/diverse environments (small co-located team with a larger team in another location) Understanding and passion for writing clean code Desirable: Financial services experience Experience with CICD/agile delivery mechanisms Knowledge of resilient enterprise systems Knowledge of mainframe development technologies ...

Senior Software Engineer (Java) - Fixed Income (AVP)

Location
Belfast City District, Northern Ireland, United Kingdom
consuming RESTful web services using Java and Spring Boot. Build Tools: Maven or Gradle for project management and build automation. Proven ability to develop clean, testable code. Understanding of relational database concepts and knowledge in SQL. Experience with Jira, Git/Bitbucket, Gradle and CI/CD tools, e.g. ...

Software Developer (Ballymena)

Hiring Organisation
MCS Group
Location
Ballymena, Co. Antrim, UK
delivered. The company is flexible on your core technical background and language expertise. More important is your ability to write high-quality, object-oriented code, solve real business problems and work effectively with both technical colleagues and customers. The RoleYou will contribute to the design and delivery of scalable … Contributing to technical decisions and system architecture discussions. Working across different projects, technologies and industry sectors. Collaborating with customers and cross-functional teams. Promoting clean code, strong development practices and continuous improvement. What You'll Need Strong object-oriented programming skills using PHP, Java, C#/.NET ...

Full Stack Developer - Assistant Vice President

Location
Belfast City District, Northern Ireland, United Kingdom
best practices, object‐oriented programming (OOP) principles, and design patterns. Contribute to the continuous integration and continuous delivery (CI/CD) pipelines. Manage source code effectively using tools such as Git or Bitbucket. Promote and apply clean coding principles and maintain high quality using tools like Sonar. Design … threading, Collections framework, and Spring Framework. Solid understanding of software engineering best practices, OOP, design patterns, and CI/CD pipelines. Experience with source code management tools (Git or Bitbucket). Understanding of clean coding principles and code quality measurements using tools like Sonar. Demonstrated ability ...

Full-Stack Java Microservices Engineer — Hybrid

Location
Belfast City District, Northern Ireland, United Kingdom
Java/J2EE, Spring Boot, and RESTful services while optimizing SQL and CI/CD pipelines. You will lead a team of developers, promote clean code, and help advance cloud-native data platforms across the Institutional Data Platform and Citi Enterprise Data Organization, with a hybrid work model ...

Senior Java Developer

Location
Belfast City District, Northern Ireland, United Kingdom
working in mixed/virtual/diverse environments (small co-located team with a larger team in another location)* Understanding and passion for writing clean code Desirable:* Financial services experience* Experience with CICD/agile delivery mechanisms* Knowledge of resilient enterprise systems* Knowledge of mainframe development technologies ...

Senior Data Scientist - Workday Products

Location
Belfast City District, Northern Ireland, United Kingdom
applying mathematics, statistics, and machine learning principles to derive actionable insights from complex datasets. Proficient in Python programming, with a focus on writing clean, efficient, and maintainable code for developing and deploying reliable AI/ML solutions in production environments. Hands‐on experience using machine learning frameworks (e.g. ...

Senior Java Microservices Engineer - Hybrid

Location
Belfast City District, Northern Ireland, United Kingdom
impact software, design robust microservices, and own critical data pipelines that support risk management across the organization. Join a globally distributed team focused on clean code, scalable solutions, and mentorship, with opportunities to influence architectures and improve outcomes while benefiting from a flexible hybrid model. #J-18808-Ljbffr ...

Senior Full Stack Developer

Location
Belfast, Northern Ireland, United Kingdom
cutting-edge web applications that serve millions of users worldwide. Responsibilities Design and develop scalable web applications Collaborate with product and design teams Write clean, maintainable code Participate in code reviews Requirements 5+ years of full-stack development experience Expert knowledge of React and Node.js Experience with ...

Senior kdb+ Engineer

Location
Belfast, Northern Ireland, United Kingdom
guide junior and mid-level developers, fostering a culture of technical excellence. Own the full development lifecycle by developing, testing, supporting and maintaining all code for client applications Drive innovation by staying ahead of the curve in kdb+, q, and emerging technologies. What You Bring 5+ years of hands … both technical and non‐technical stakeholders. Experience in capital markets or investment banking, understanding of the domain and its demands. A passion for clean, performant code and continuous improvement. Bonus Points For Experience with AI tooling (Claude, Co‐Pilot) Experience with Python, cloud platforms (AWS, GCP, Azure ...

Senior Software Engineer - Full Stack

Location
Belfast City District, Northern Ireland, United Kingdom
with SQL Server and Entity Framework to support application functionality and data-driven features Applying SOLID principles, design patterns and best practices to produce clean, scalable and maintainable code Identifying and implementing improvements across existing systems, codebases and development processes Collaborating closely with Development, QA and Project Management … Experience building responsive, customer-facing web applications Strong knowledge of OOP, SOLID principles and design patterns Experience with Microsoft SQL Server Ability to write clean, reusable and scalable code Strong analytical and problem-solving skills Excellent communication skills across technical and non-technical teams Package & Benefits Hybrid working ...

kdb+ Contractor (Capital Markets)

Location
Belfast, Northern Ireland, United Kingdom
guide junior and mid-level developers, fostering a culture of technical excellence. Own the full development lifecycle by developing, testing, supporting and maintaining all code for client applications. Drive innovation by staying ahead of the curve in kdb+, q, and emerging technologies. What You Bring 7+ years of hands … both technical and non‐technical stakeholders. Experience in capital markets or investment banking, understanding of the domain and its demands. A passion for clean, performant code and continuous improvement. Bonus Points For: Experience with AI tooling (Claude, Co‐Pilot) Experience with Python, cloud platforms (AWS, GCP, Azure ...

Remote iOS Engineer: Build Next-Gen Mobile Experience

Location
Belfast City District, Northern Ireland, United Kingdom
work on iOS features in Swift, tackle moderately complex tasks, and collaborate with a small, experienced team. This remote role offers ownership of features, code reviews, and a path to continuously improve tooling, testing, and deployment, with an emphasis on clean code and reliable delivery. #J ...

Mid & Senior Java Developers

Location
Belfast City District, Northern Ireland, United Kingdom
preferred) REST APIs and microservice architecture SQL databases and data modelling CI/CD pipelines and modern development practices A passion for writing clean, maintainable, well-tested code Just as importantly, you'll enjoy collaborating with others, sharing ideas and continuously improving the way software is delivered. What ...

Remote C++ Software Engineer

Hiring Organisation
Reactive Markets
Location
Larne, United Kingdom
platform — pricing engines, connectivity gateways, market-data systems, and the messaging layer that ties them together. This is not a role where you write code and throw it over a wall. You build it, you test it, you deploy it, you support it in production, and you improve it. … What We Need Technical: Strong C++ with Linux systems programming (3+ years) Comfortable working close to the metal — you understand what's underneath your code Experience with performance-sensitive systems (profiling, optimisation, deterministic behaviour) Familiarity with networking fundamentals (TCP/UDP, socket programming) Go experience is a strong bonus ...

kdb+ Engineer

Location
Belfast, Northern Ireland, United Kingdom
performance environment this is your opportunity! What You’ll Be Doing Collaborating with business users to define new application requirements. Developing, testing and maintaining clean, performant code for client applications. Supporting project delivery alongside Project Managers and Senior Engineers. Working as part of a close-knit team ...

Front End Engineer - Serve

Location
Belfast, Northern Ireland, United Kingdom
development decisions with growing independence. Handle small-to-medium features independently and begin taking ownership of moderately complex tasks with some guidance. Write clean, maintainable code and actively participates in peer code reviews, providing constructive feedback and adhering to coding standards. Collaborate closely with Product to refine ...

Senior Software Developer (Node and React)

Hiring Organisation
MCS Group
Location
Newtownabbey, Co. Antrim, UK
preferred) REST APIs and microservice architecture SQL databases and data modelling CI/CD pipelines and modern development practices A passion for writing clean, maintainable, well-tested code Just as importantly, you'll enjoy collaborating with others, sharing ideas and continuously improving the way software is delivered. What ...

Remote Senior Data Engineer

Hiring Organisation
Codat
Location
Ballymena district, United Kingdom
looking for a Senior Data Engineer to join our Data and Insights team. You'll be hands-on every day, writing production code, building and maintaining data pipelines, and shipping features that turn raw data into intelligence our clients can act on. You'll work across the full project … lifecycle, from understanding the problem through to delivery, and you'll care as much about code quality and operational reliability as you do about getting things shipped. This is also a technical leadership role. As a senior member of the team, you'll set and lead the technical direction ...

Mobile Software Engineer (Android) - Olo App

Location
Belfast City District, Northern Ireland, United Kingdom
development decisions with growing independence. Handle small-to-medium features independently and begin taking ownership of moderately complex tasks with some guidance. Write clean, maintainable code and actively participate in peer code reviews, providing constructive feedback and adhering to coding standards. Collaborate closely with Product to refine … when possible. Engage in continuous learning and self-improvement by exploring new technologies and best practices relevant to the team's work. Use Claude Code as part of your daily workflow, and grow your skills through hands‐on AI training designed to help you become highly effective with modern ...

Full-Stack .NET Developer | Hybrid Belfast

Location
Belfast City District, Northern Ireland, United Kingdom
product team, contribute to both frontend and backend development, and help shape meaningful applications in an agile setting. From day one you will write clean, maintainable code, take part in code reviews, and learn from experienced engineers while advancing your skills within a supportive, growth-oriented environment. ...