For Software Teams
Experienced Engineering
for Your Web Applications
A senior software engineer for delivery, architecture, integrations and troubleshooting — working inside your team, in your codebase.

17+ years of commercial software engineering
React, Next.js, Node.js, APIs and integrations
At home in legacy code and mid-flight projects
By contract, by sprint or on retainer

17+ Years
Commercial software engineering

10+ Big Techs
Australian & global teams

1,000+ Pages
Reviewed & improved

Real Results
Conversion, speed & performance
Experience across teams at
When the Roadmap Outgrows the Team
Senior Capacity
Without the Hiring Wait
A software team stuck in front of a whiteboard
engineer-beforeBefore: Stuck, Stretched or Stalled
A deadline, a legacy codebase nobody wants to touch, or a decision that needs more experience than the team has right now.The same team, relaxed, shipping work together
engineer-afterAfter: Moving Again
An experienced engineer inside your team — shipping, unblocking, and leaving the codebase better than they found it.Before You Start a Long Hiring Process...
...Get Senior Help on the Work That Can't Wait.
A New Permanent Hire — Months
Right for the long term. Slow for the problem in front of you.
- Weeks of recruiting before anyone starts
- Onboarding before real output
- A permanent cost for a temporary peak
- The deadline doesn't wait
Senior Engineer On Demand
Experienced help, in your codebase, now.
- Productive in existing codebases, including legacy ones
- React, Next.js, Node.js, APIs and integrations
- By contract, by sprint or on retainer
- Documentation and a clean handover
Recent work
Inside Teams That Ship to Real Users

Cochlear
A global telehealth platform for clinicians

Pepper Money
One website where there were three

ResMed
A refreshed patient-management system

Universities & ANMF SA
Systems for universities and nurses
What People Say
Trusted Inside Large Engineering Teams
Five out of five stars
“Bach worked extremely well with the external vendor and UX designer to retrofit our Online Banking Portal. Many thought it was impossible due to the outdated technology it was built on, but Bach used his frontend expertise to bring our portal to a modern state in a very short time. He helped us quickly deliver more value to our customers while saving cost and time.”

Karl Esber
GM Asset Finance · Pepper Money
Five out of five stars
“Bach was well-versed in designing & developing streamlined solutions for our Clinician Portal at Cochlear. Thanks to his work, we were able to scale up quickly and resolve many issues for hospitals and clinics around the world.”

Abid M
Digital Transformation · Cochlear
Five out of five stars
“At CommSec, Bach demonstrated his expertise as our most experienced front-end engineer by tackling complex projects with proficiency. He collaborated closely with engineers and the UX/VD team, bringing ideas to life. Bach consistently offered valuable improvements and delivered challenging UI designs. When the UX team started working on a Design System, Bach eagerly volunteered and delivered a great component library. His calm, measured approach made him a pleasure to work with, and he always prioritized delivering the best results for our customers. I would have no hesitation in working with him again.”

Justin Goldberg
Head of Engineering · worked together at CommSec
Five out of five stars
“Bach transformed our cloud application into a cutting-edge React application, significantly reducing unexpected bugs. The robust frontend foundation he established enabled our team to expand rapidly and deliver new features quickly. I highly recommend Bach for any team looking to develop a modern, state-of-the-art SaaS application.”
Aaron Kwan
Product Manager
Five out of five stars
“In my experience working with Bach at CommSec, his contributions to the frontend and UX were outstanding. He consistently communicated effectively and delivered UI features promptly, which was key to our team meeting deadlines at very high quality.”
Kon Stormozhev
CTO · worked together at CommSec
Five out of five stars
“Bach is a fantastic developer to work with. He’s consistent, adaptable, and truly cares about the code he writes. On a rebranding project for a large medical web application, Bach dug into implementation details, experimented with CSS techniques for complex design elements, and kept the project on track and on time. When designs were too complicated or expensive to implement, he negotiated workable compromises with stakeholders. Bach is self-sufficient, diligent, and dependable. If I ever have the opportunity to work with him again, I will go out of my way to make it happen.”
Cody Jenkins
Senior UI Developer · ResMed
Five out of five stars
“I had the great pleasure of working with Bach at CommSec. He is enthusiastic, passionate, and detail-oriented, never shying away from complicated problems. He excels in front-end development and has extensive knowledge of frameworks and web standards. As a great team player, he became the go-to person for anything related to JavaScript. I would not hesitate to recommend him.”
Robert Shi
Senior Engineer · worked together at CommSec
Five out of five stars
“Bach is a very experienced UI/UX Developer. He quickly understands business intentions and requirements, efficiently converts designs into functional frontend solutions, and communicates constructively with team members to foster a positive team spirit.”
Tim Wang
Engineering Manager · ING Australia
Five out of five stars
“Bach also demonstrated his creativity and technical competence by collaborating and sometimes mentoring fellow Java back-end developers when implementing AirView functionality and issue fixes. Bach often demonstrated great effort and commitment beyond the expectation of his role by working overtime to meet the challenging deadlines on the project.”
Kiet Nguyen
Senior System Engineer · ResMed
Five out of five stars
“Top developer. Unlike many others, Bach analyses requirements and performs impact analysis before writing code. He follows Agile principles well and is a strong fit for any team.”
Kaifi Hasibul
Senior Project Manager · Pepper Money
Tell us where your team needs senior help.
Discuss Your ProjectTeams I’ve worked with
Tell Us About the Gap
Tell Us About
Your Project.
FAQs
Questions About Senior Engineer On Demand
What do you work on?
Web applications: React and Next.js front ends, Node.js services, APIs and third-party integrations, performance, and modernising older code.
How do engagements work?
By contract, by sprint or on retainer. We agree the scope, availability and rate in the first conversation, before anything starts.
Can you work inside our codebase and process?
Yes. The background is Agile product teams at Cochlear, CommSec and Pepper Money — your repository, your reviews, your tooling.
Can you help with legacy systems?
Yes — it's a large part of the background: refactoring a legacy codebase onto React at Cochlear, and retrofitting an internet banking portal for mobile at Pepper Money.
What if it isn't the right fit?
Then we'll say so in the first conversation, and point you somewhere better if we can.










