Rullion
Senior Software Engineer
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Principal / Lead / Senior Software Engineer
Location: Liverpool (Hybrid - 2 days per week onsite)
Contract: Initial 6 Months
IR35 Status: Inside IR35
About the Role
We are recruiting for Principal, Lead, and Senior Software Engineers to join a high-performing technology team on an initial 6-month contract.
These are hands-on engineering roles where you will design, develop, and deliver secure, scalable, and resilient software solutions while contributing to technical leadership across Agile delivery squads. Depending on your level of experience, you will take ownership of software delivery, lead engineering teams, or help shape the wider technical strategy and architecture.
Working alongside Product Owners, Architects, Engineering Managers, Business Analysts, and fellow Engineers, you will play a key role in building modern cloud-native applications using Java, Spring Boot, and AWS. You will champion engineering best practices, contribute to technical decision-making, mentor other engineers, and help drive continuous improvement throughout the software development lifecycle.
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Whether you're a Senior Engineer looking to mentor others, a Lead Engineer driving technical delivery, or a Principal Engineer influencing engineering strategy across multiple teams, you'll have the opportunity to make a significant impact.
Key Responsibilities
- Design, develop, test, and maintain high-quality software solutions using Java, Spring Boot, and AWS.
- Build secure, scalable, resilient, and highly available cloud-native applications.
- Collaborate with Product Owners, Architects, Engineering Managers, Business Analysts, and cross-functional teams to deliver business-critical software.
- Contribute to software architecture, technical design, and technology selection.
- Champion engineering best practices, coding standards, and secure software development principles.
- Participate in code reviews, technical design sessions, testing, debugging, and production support.
- Identify and resolve technical risks, performance issues, and delivery challenges.
- Develop reusable components, shared frameworks, and engineering standards.
- Mentor and support other engineers through coaching, technical guidance, and knowledge sharing.
- Collaborate across engineering communities to promote innovation and continuous improvement.
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Key Skills & Experience
- Significant commercial experience developing enterprise-scale software applications using Java.
- Strong hands-on experience with Spring Boot
- Proven experience developing and deploying cloud-native applications on AWS.
- Strong understanding of object-oriented programming, software architecture, design patterns, and engineering best practices.
- Experience designing, building, integrating, and supporting complex software solutions.
- Experience developing secure, scalable, resilient, and high-performing applications.
- Strong knowledge of automated testing and modern software engineering practices.
- Excellent communication and stakeholder engagement skills.
- Experience mentoring engineers and contributing to technical decision-making.
Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants.
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