Senior Software Engineer (Full Stack)
About us:
Mantel is an Australian-owned, IT Professional Services consultancy, focused on emerging technology to help advance our clients by leveraging AI, Digital, Cloud, Data & Security technology. Since our inception in November 2017, we have experienced remarkable growth across Australia & New Zealand and are honoured to be recognised as a Great Place to Work for 6 years in a row!
We hire smart and talented people and get out of their way. As a principle-based organisation we have a flat structure with no hierarchy. By focusing on our five principles and not getting caught up in red tape, we trust you to get the job done!
Our Digital team works collaboratively to develop end-to-end digital solutions, ranging from technology selection to building and operating phases. Spanning both software and hardware deployments, we deliver and manage scalable, cloud-focused, automated solutions – focused on shared knowledge, continuous improvement and design thinking.
About the role:
As a Senior Software Engineer, you will enjoy working on a diverse and exciting range of projects across various clients and industries. We are a technology agnostic business that opens endless possibilities for you to work across multiple tech stacks and multiple platforms with the opportunity to upskill and cross skill. We will always evolve as the technology landscape changes so we both won’t be left behind!
Your day to day:
Thrive in our collaborative, flat-structured environment, where your day-to-day work is all about teamwork and shared decision-making
Implement technology solutions that meet and exceed customer requirements and expectations
Develop high-quality code that can function with existing code, patterns and architectural techniques
Leverage and advocate for AI-assisted development tools (eg: Claude/Cline) to accelerate development
Implement structured agentic workflows (setup-plan-act) across team development practices
Lead by example in reviewing and refining AI-generated code, ensuring it meets architectural standards
Provide clarification of technical requirements and the translation of these requirements into technical design
Monitor and assess industry developments and incorporate them into solutions where appropriate
Effectively utilise development best practices such as CI/CD
Actively participate in team agile development practices
Ensure appropriate quality is maintained through practices such as unit testing
Design systems that can be deployed and managed effectively in a production environment
Use professional judgement while treating colleagues and clients with respect and compassion, and a demonstrated ability to display our five Mantel principles
What you’ll need to be successful:
Solid experience building rich applications with modern JavaScript frameworks such as React, Vue.js & Node.js.
Strong experience using testing frameworks such as Jest and Cypress and integrating these with CI/CD Developing applications on both greenfield projects & existing applications
Experience with modern API technologies & microservices
An understanding of API gateway technologies such as Kong &/or Apigee
Experience building and maintaining cloud-based applications - Azure, AWS and/or GCP
Proficiency with AI-assisted coding tools and the ability to coach team members in their effective use
Understanding of AI code security, quality assurance and when human oversight is critical
Experience with MCP servers, shared context strategies and team-based agentic workflows
A self-starter mindset and an ability to work hands-on, to find answers and work with ambiguity
At Mantel, we want you to be yourself. We trust our team members to use their professional judgment while treating colleagues and clients with respect, compassion, and professionalism in alignment with our five principles
You take ownership, always stepping up to help and prioritising your teammates. You're also a clear, kind communicator who makes sound decisions based on good judgement
What you can expect from us:
We believe in unique experiences for all. Our My Deal program allows you to tailor your yearly plan, with the support of your Leader, to decide on what’s most important to you. That might be extra professional development, extra annual or parental leave, time to work on your side hustle, or something else completely different! One size does not fit all.
You’ll get all the tools you need to hit the ground running including a new phone, laptop & swag.
You’ll be genuinely supported by an organisation that cares about not only you but your family as well, Mantel offers Flexible Personal Leave options for those unplanned moments in life.
We support a flexible hybrid approach to working which is guided by our principles; we trust each other to “make good choices” about the best workplace locations for the requirements of the project, role and client. This can change based on our client needs.
Mantel is a certified Family Inclusive Workplace, which means we are committed to improving your wellbeing at work through leading practices on flexible work, parental leave, family care and family wellbeing
We know you won’t have one job for life. At Mantel, we believe in supporting our team to take their career in a direction that aligns with their passions. We have internal opportunities across Cloud, Data, Security and Digital.
Click ‘Apply for this job’ to be considered for this role and our Talent team will be in touch.
We value a diverse workplace and strongly encourage people from all backgrounds and minority groups to apply.
- Department
- Digital
- Role
- Web
- Locations
- Melbourne, Sydney
- Employment type
- Full-time

About Mantel
We’re an Australian-owned, Principle-based, AI-led consulting business founded in Melbourne.
Mantel is Australia’s end-to-end technology services provider across Cloud, Digital, Data & AI and Security.
We are a dynamic business established in November 2017 and have grown to a team of over 800 across Australia and New Zealand.