Cloud Platforms (AWS & Azure)
Architecture reviews, migrations, and cost optimisation across AWS and Azure. Infrastructure as code, CI/CD pipelines, and platform engineering done by an engineer who runs production systems.
Identity & Access Management
Entra ID, PKI, and zero-trust access control — designed and hardened for organisations that can't afford a breach.
Networking & Infrastructure
Design, hardening, and ongoing management of on-prem and cloud network infrastructure — firewalls, VPNs, DNS, and production systems.
Reviews and assessments
Fixed-scope reviews with a written report and a ranked list of what to fix. Hamer Technical does not resell cloud services, licences or tooling, so the findings are independent.
Technical Due Diligence
An independent engineering assessment of a technology business before you invest in it or buy it. Architecture, security, technical debt, team and running costs, reported as ranked red flags.
What the review covers →AWS Well-Architected Review
An independent review of your AWS workloads against the six pillars of the AWS Well-Architected Framework, with ranked findings and a remediation plan.
What the review covers →Cloud Platform Uplift
Hands-on remediation of AWS and Azure foundations. Landing zones, single sign-on, service control policies, KMS and governance, delivered as infrastructure as code.
What the review covers →FinOps & Cloud Cost Review
A savings register with a dollar figure against every line, a commitment strategy based on your real usage and cost allocation that shows who spends what.
What the review covers →DevOps Review
An assessment of how your team builds, tests, releases and operates software, read from your repositories and pipelines, with a roadmap your engineers can start on.
What the review covers →Security Posture Review
Essential Eight maturity, identity, email, Microsoft 365 and cloud configuration assessed with read-only access, with a fix list ranked by risk.
What the review covers →Services
PKI & Certificate Services
Internal certificate authorities, TLS certificate lifecycle management, and code/document signing — PKI designed and operated by an engineer who's built production PKI for defence-grade systems.
Email Security & Exchange
SPF, DKIM, and DMARC deployment and enforcement to stop spoofed mail from your own domain, plus Exchange Online migration and hardening.
Server & Systems Administration
Linux and Windows Server builds, hardening, patching, and day-to-day administration — properly run infrastructure without a full-time sysadmin on staff.
Home & Small Business IT Support
Wi-Fi and network troubleshooting, PC and laptop setup and repair, printer configuration, and general IT support for homes and small businesses in Sydney's Inner West. Book a session online.
LLM & AI Consulting and Implementation
Practical help to choose where AI is worth using and then to build it. Use case selection, retrieval over your own data, agentic workflows, evaluation and the security controls needed for production.
How AI engagements run →DevOps Coaching
Hands-on uplift for engineering teams: CI/CD, GitHub Actions, testing discipline, release automation, and observability. Coaching embedded in your real codebase, not slideware.
Start with a DevOps review →Microsoft 365 Security Hardening
Entra ID, Intune, and Defender configured properly for small business: phishing-resistant MFA, conditional access, device compliance, and Essential Eight alignment.
On-Demand 3D Printing
Rapid prototyping and small-batch manufacturing in engineering materials — ASA, ABS, PETG, TPU. CAD design to functional part: enclosures, jigs, fixtures, and replacement components. Sydney turnaround.
Fractional CTO
Part-time technical leadership for startups and SMEs: architecture direction, build-vs-buy calls, hiring support, and a roadmap your engineers can actually execute.
Ways to work together
You don't have to hire me for a whole project. Pick whatever fits the work.
By the hour
Book time when you need it. A review, a fix, a second opinion, a pair of hands on a cutover. No minimum.
Hours per month
A set number of hours each month, used as you need them, with priority response. Senior AWS, identity and networking help on call without paying a salary for it.
A day or two a week
A regular slot with your team for work that needs continuity: identity programs, network rebuilds, cloud remediation. Three months minimum.
Live, not a claim
We run the infrastructure we sell
A public, GPS/PPS-disciplined stratum-1 time service — NTS-secured, fully observable, built and operated by the same engineer who'd work on yours.
About
Hamer Technical Pty Ltd is a Sydney-based IT consultancy delivering identity and access management, networking, infrastructure, and cloud platform engineering for businesses that need it done right the first time.
Founded by Thomas Hamer — a Staff Engineer with deep experience across cloud platforms, enterprise identity, and production infrastructure, including work for government and defence clients. Navy veteran. More at hamer.cloud.