Principal Java Software Engineer (Payments) at Endava

Sydney, New South Wales, Australia -

Full Time

Start Date

Immediate

Expiry Date

17 Jun, 26

Salary

0.0

Posted On

19 Mar, 26

Experience

10 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Java, Spring/Spring Boot, JVM Tuning, Memory Management, Garbage Collection, Oracle, PostgreSQL, SQL, Microservices, Cloud, Payments Principles, ISO 8583/ISO 20022, PCI DSS, Kafka, Stakeholder Management, Threat Modelling

Industry

IT Services and IT Consulting

Description

Company Description Technology is our how. And people are our why. For over two decades, we have been harnessing technology to drive meaningful change. By combining world-class engineering, industry expertise and a people-centric mindset, we consult and partner with leading brands from various industries to create dynamic platforms and intelligent digital experiences that drive innovation and transform businesses. From prototype to real-world impact - be part of a global shift by doing work that matters. Job Description As a Principal Java Software Engineer, you will be a highly skilled hands on Java developer who is equally comfortable delivering high quality Java code, solving complex problems, acting as a technical authority and participating in the architecture of a high-throughput, mission-critical payments platform. Serving as the keystone between executive stakeholders and delivery teams, you ensure technical direction aligns with commercial strategy, regulatory obligations, performance requirements and modern payments-industry standards. Qualifications Highly experienced practitioner with hands-on software engineering with expert-level proficiency in Java (17+) and the Spring/Spring Boot ecosystem. Deep "under the hood" understanding of JVM tuning, memory management, and garbage collection for high-concurrency systems. Deep understanding of platform-specific database systems (Preferable: Oracle and PostgreSQL) and SQL. Knowledge on how to architecture schemas and tables, as well as optimising for performance while maintaining data integrity is essential. Deep understanding of microservices patterns and best practices. Demonstrated success delivering solutions on cloud and integrating with on-premises environments. Deep knowledge of payments principles—authorisation, clearing, settlement, chargebacks, fraud, card tokenisation, AML/KYC—and familiarity with AU schemes (NPP, BECS), ISO 8583/ISO 20022, and PCI DSS. Experience architecting solutions for banking, payments, or insurance clients across Australian and international markets. Experience with payment-orchestration platforms/gateways and scheme-routing optimisation. Proven track record in building event-driven solutions built on popular platforms, preferably Kafka. Excellent communication and stakeholder-management skills, capable of simplifying complexity for non-technical audiences. Experience with reviews, risk assessments, threat modelling, and compliance audits. Preferred Attributes Certifications such as CPP (Certified Payments Professional) and/or AAP (Accredited ACH Professional). Experience with cloud-native platforms, ideally Pivotal Cloud Foundry (PCF). Experience with Agile methodologies, DevOps practices, Infrastructure-as-Code, and automated testing frameworks. Record of influencing technology strategy and ROI at senior business stakeholder; TOGAF or SAFe certification desirable. Fluency in data-privacy and industry-specific compliance frameworks (e.g., ISO 27001, SOC 2). Commitment to equity, diversity, sustainability, and ethical technology practices. Key Responsibilities Engineering Excellence & System Design: Lead the design and implementation of highly available, fault-tolerant, and event-driven architectures. Define the "how" for the transition to modern, reactive microservices across cloud and hybrid environments. Architectural Design: lead the design of highly available, fault tolerant, idempotent, fast and event-driven solution architectures that span cloud, on-premises, and hybrid environments, distributed globally. Your approach will embed security-by-design principles and prioritise cost-effective strategies across all platforms. Payments Solutioning: responsible for designing and governing end-to-end payment flows, including authorisation, clearing, settlement, and tokenisation. This includes developing and maintaining payment orchestration layers that support card schemes, real-time payment rails like NPP, and alternative payment methods. Ensuring compliance with standards such as PCI DSS, ISO 8583, ISO 20022, and AS 2805 field mappings will be a key part of your role. Technical Leadership: guide multidisciplinary teams by defining and promoting engineering best practices. You will be the team’s cornerstone on code quality, JVM performance tuning, and the enforcement of DevSecOps principles within the delivery pipeline. Workshop Facilitation: Run discovery workshops to navigate trade-offs between speed-to-market and technical debt, articulating complex implementation decisions to both technical and non-technical executive stakeholders. High-Stakes Governance: create architectural artefacts such as C4 models, service blueprints, data-flow diagrams and PoCs. Additionally, you will lead design reviews, risk assessments, and compliance audits, with a focus on regional and global payment regulations. Digital Transformation: contribute to the development and execution of technology roadmaps aimed at modernising legacy systems and enabling innovative business models across the digital payments sector. Mentoring & Community: coach engineers and other architects; foster an inclusive, continuous-learning culture across teams. Additional Information Discover some of the global benefits that empower our people to become the best version of themselves: Finance: Competitive salary package, share plan, company performance bonuses, value-based recognition awards, referral bonus; Career Development: Career coaching, global career opportunities, non-linear career paths, internal development programmes for management and technical leadership; Learning Opportunities: Complex projects, rotations, internal tech communities, training, certifications, coaching, online learning platforms subscriptions, pass-it-on sessions, workshops, conferences; Work-Life Balance: Hybrid work and flexible working hours, employee assistance programme; Health: Global internal wellbeing programme, access to wellbeing apps; Community: Global internal tech communities, hobby clubs and interest groups, events and celebrations. Additional Local Benefits Monthly Lifestyle Allowance: Contribution towards health and wellbeing activities like gym memberships. Novated Leasing: Pre-tax car leasing benefit for new and used cars. Loyalty Leave: Receive an additional day of leave on your 3rd, 4th, and 5th work anniversaries, accumulating up to a maximum of 3 extra days of leave per year. Inclusive Parental Leave Policy: 12 weeks of primary carer’s leave and 4 weeks of secondary carer’s leave. Work From Anywhere: In addition to our hybrid working policy, we also offer 20 days of working from anywhere per year. Ideal for an extended trip to get away from the city or visiting loved ones. At Endava, we’re committed to creating an open, inclusive, and respectful environment where everyone feels safe, valued, and empowered to be their best. We welcome applications from people of all backgrounds, experiences, and perspectives—because we know that inclusive teams help us deliver smarter, more innovative solutions for our customers. Hiring decisions are based on merit, skills, qualifications, and potential. If you need adjustments or support during the recruitment process, please let us know.

Responsibilities

Lead the design and implementation of highly available, fault-tolerant, and event-driven architectures, defining the transition to modern, reactive microservices across cloud and hybrid environments. Responsible for designing and governing end-to-end payment flows, ensuring compliance with standards like PCI DSS and ISO 20022.