Hydrogen Group
Application Security Engineer
Application Security Engineer at a financial services company in Sydney, triaging and prioritising findings from SAST, DAST, SCA, secrets, API, container and IaC scanners, giving engineers fix guidance, owning secure-SDLC controls, and running GitHub security and vulnerability remediation end to end.
Cloud Security Engineer
A hands-on Cloud Security Engineer strengthening clients' AWS platforms in Sydney: fixing high-risk vulnerabilities, misconfigurations and identity issues, automating controls and secure CI/CD pipelines (Python, CloudFormation, GitHub Actions), and supporting compliance with NIST, ISO 27001, Essential Eight and APRA CPS 234.
Lead Java Developer
Lead Java Developer on a 6-month rolling contract (up to $1100/day) with a financial services client in Sydney. You'll provide hands-on technical leadership building a cloud-native platform — designing and developing Java/Spring Boot microservices, owning the SDLC end to end, mentoring junior devs, and using Terraform in a greenfield environment.
Mobile Quality Engineer
Salary: $700 - $750 p.d. We're currently looking for a. experience Mobile Quality Engineer to join our financial services client in Sydney on an initial 6-month contract. The Role You will play a key role in…
Senior Business Analyst - Advertising
Salary: $850 - $950 p.d. Senior Business Analyst - Advertising Technology & Data We're partnering with a leading organisation to find an experienced Senior Business Analyst with a strong background in digital…
Investments Solution Architect
Hydrogen Group is hiring an Investments Solution Architect in Melbourne to define and own solution architectures for investment platforms, supporting trading, investment analysis, and regulatory compliance. The role needs hands-on investment technology architecture experience, cloud-first/SaaS design skills, and knowledge of trade lifecycle and financial regulations.
Data Engineer
Contract Data Engineer in Sydney (via recruiter Hydrogen Group) for a leading financial organisation, paying AUD 650–750 per day. Day to day: building ETL pipelines, data lake ingestion and curation jobs in GCP using Python, Databricks, Spark, Kafka, SQL/PL-SQL and cloud platforms Azure/GCP, delivered via CI/CD.
Senior Technical Business Analyst
Senior Technical Business Analyst embedded in an engineering team at a large Australian consumer business, turning business needs into buildable specs for order lifecycle and fulfilment systems, owning the technical backlog, and shaping AI-driven process automation. Requires strong Agile BA experience plus API (REST/gRPC), SQL/NoSQL and AI/LLM literacy.
Senior API Developer
Senior API Developer on an initial 6-month contract with a large financial services client in Sydney, designing scalable backend services and REST/GraphQL APIs in NodeJS on GCP. Work spans SQL/NoSQL databases, Docker, CI/CD pipelines and microservices.
Cyber Project Manager
A 12-month fixed-term Cyber Project Manager contract in Sydney, delivering cyber security transformation projects end to end. Focus areas are network/perimeter security (Zero Trust, firewalls) and data protection (DLP, data classification), managing plans, budgets, vendors and senior stakeholders.
Digital Solution Architect
Salary: $230k - $250k p.a. An great opportunity has become available for an experienced Digital Solution Architect to join our Insurance client undertaking a huge, digital transformation program. As a technical expert…