About us:
Amach is an industry-leading technology driven company with headquarters located in Dublin and remote teams in UK and Europe.
Our blended teams of local and nearshore talent are optimised to deliver high quality and collaborative solutions.
Founded in 2013, Amach was created to solve a specific problem in aviation: too much complexity, too little usable intelligence. We help airlines modernise their operating model using cloud, data and Al-delivered by teams with deep aviation domain expertise.
Our goal is to maximize airlines' operational efficiency by optimizing resource use, reduce costs and increase customer experience and satisfaction.
We are looking for a Principal Engineer with deep expertise in Java, Oracle and distributed systems to lead the modernisation of our customer's enterprise architecture. In this role, you’ll drive the strategic transformation of a legacy monolithic system into a scalable, cloud-native platform. You will provide technical management, define engineering standards and design enterprise-grade microservices leveraging Spring Boot, REST APIs and Oracle, deployed in AWS using Docker and Kubernetes.
This is a hands-on architecture and management position where you’ll shape system design decisions, mentor engineering teams and set the direction for high-performance, secure and reliable software delivery.
This role will operate on a hybrid model, with candidates expected to be able and willing to work from our customer's Dublin office at least once a week.
Required Experience:
- 10+ years of professional software engineering experience, with at least 3 years in a senior or principal capacity
- Expert-level proficiency in Java (Java 11/17) and Spring Boot for microservice development
- Proven experience in Oracle database design, optimisation, and integration within distributed systems
- Robust track record modernising monolithic or SOAP-based systems into RESTful microservices
- Deep knowledge of microservice architecture, domain-driven design (DDD), and event-driven systems
- Hands-on experience with AWS (ECS, EKS, Lambda, API Gateway) and Docker/Kubernetes
- Proficiency with CI/CD tools (Jenkins, GitLab CI, AWS CodePipeline) and IaC (Terraform, CloudFormation)
- Solid comprehension of authentication and authorisation frameworks (OAuth2, JWT, OpenID Connect)
- Solid understanding of observability stacks (Prometheus, Grafana, ELK)
Key responsibilities & duties include:
Architecture & Technical Leadership- Define and implement the architectural roadmap for decomposing legacy systems into modular, domain-driven microservices
- Lead the modernization of SOAP-based applications to RESTful, stateless microservices built with Spring Boot and integrated with Oracle databases
- Establish and enforce engineering standards for scalability, security, observability, and cloud readiness
- Partner with stakeholders across Product, Platform, and DevOps to ensure architectural alignment with business goals
- Design, build, and optimize RESTful APIs following best practices and OpenAPI/Swagger standards
- Lead transformation from SOAP/XML to REST/JSON for internal and external integrations
- Ensure performance, fault tolerance, and high availability across service layers
- Act as a subject matter expert for Java-based microservices and Oracle data integration patterns
- Architect and deploy containerised services using Docker, Kubernetes, and AWS ECS
- Implement Infrastructure as Code (IaC) with Terraform or AWS CloudFormation for repeatable, secure provisioning
- Collaborate with DevOps to improve CI/CD pipelines, observability and release automation
- Drive adoption of cloud-native best practices for endurance and cost efficiency
Quality, Performance & Security
- Define and implement performance benchmarks, monitoring and tuning strategies
- Promote TDD, CI/CD, and automated testing frameworks (JUnit, Mockito, Postman)
- Implement caching strategies (Redis, Memcached) and optimise database interactions
- Ensure compliance with security standards and data protection policies
- Provide hands-on mentorship to senior and mid-level engineers
- Lead design and code reviews, promoting technical excellence and knowledge sharing
- Champion modern engineering practices, agile methodologies, and continuous improvement
- Collaborate with senior management to influence technical direction and long-term technology strategy
Desirable Experience:
- Experience designing or integrating API Gateways (AWS API Gateway, Kong, Apigee)
- Exposure to message brokers (Kafka, RabbitMQ) or event-driven architectures
- Experience with serverless components (AWS Lambda) and data streaming pipelines
- Robust collaboration and communication skills, capable of influencing technical direction across teams
What’s in it for you:
- An opportunity to join a fast-growing company
- Options for career advancement
- Learning and development opportunities
- Flexible working environment
- Competitive salaries based on experience
Equal Opportunity Employer:
Amach is an equal opportunity employer and makes employment decisions on the basis of merit. We celebrate diversity and are committed to creating an inclusive environment for all employees. This job description is intended to convey essential responsibilities and qualifications for this role, but it is not an exhaustive list of tasks that an employee may be required to perform.
If you are passionate about driving customer success, advising on strategic solutions, and contributing to product innovation, we would love to hear from you!
Not for you?
Check out all of our open positions in our careers page and follow us on LinkedIn for future opportunities.
P.S. Share this with friends and co-workers! Don't be afraid they'll steal it from you, if you're amazing and smart we'll find a role for you. We are growing fast and we are always looking for talented people.
At Amach, we strive to be an inclusive community of open-minded individuals with different backgrounds and we are committed to fostering, cultivating and preserving a culture of diversity, equity and inclusion. We strongly believe that a diversity of experience and background is essential to create a fulfilling environment and better solutions for our people and our customers. All Amach employees and contractors are expected to honour this policy and act to ensure that every individual is respected in the workplace.
Your personal data
Amach will process your personal information in accordance with the EU's General Data Protection Regulation (GDPR). We will comply with data protection law and principles, which means that your data will be:
- Used lawfully, fairly and in a transparent way
- Collected only for valid purposes and not used in any way that is incompatible with those purposes
- Relevant to the purposes we have told you about and limited only to those purposes
- Accurate and kept up to date
- Kept only as long as necessary for the purposes we have told you about
- Kept securely
If you would like to contact us about your data, please use the following address: [email protected]
Top Skills
Amach Dublin, Dublin, IRL Office
14 Clanwilliam Court, Dublin, Dublin, Ireland, D02 FK23
