Product engineering
New web apps and features, from first schema to production. Server-rendered Rails with Hotwire keeps the stack small and fast to change.
Software consulting & product studio
We build software for clients, and the tool that bills for it.
gbytes is a small engineering team that designs, builds and runs web products. We also make JustInvoicit, the invoicing app that turns your Jira work into a paid invoice.
Sample invoice
Synced
Invoice INV-2026-0142
Issued 12 Oct 2026 · Due 26 Oct 2026
4 issues pulled from Jira · Sprint 23 at ₹3,500/hr
| Item | Hrs | Amount |
|---|---|---|
| GB-412Live Jira sync with Turbo Streams | 6.0 | 21,000.00 |
| GB-418Loader state while issues sync | 2.0 | 7,000.00 |
| GB-421Story points field help link | 3.0 | 10,500.00 |
| GB-430Razorpay payment link webhook | 5.0 | 17,500.00 |
UPIQRRazorpayBank transfer
- Subtotal
- ₹56,000.00
- GST 18%
- ₹10,080.00
- Total due
- ₹66,080.00
Consulting services
The same team that runs a SaaS, working on yours.
We run JustInvoicit in production every day: billing, webhooks, background jobs, third-party APIs. That is the experience we bring to client work.
API & integrations
OAuth connections, webhooks and data sync with the tools your team already uses, built to survive rate limits and retries.
Payments & billing
Subscriptions, payment links, invoices and tax. We have shipped these flows for Indian and international customers.
Cloud & DevOps
CI pipelines, containerised deploys, background workers and monitoring, so releases are routine instead of risky.
Code audits & rescue
A written review of an existing codebase: what is risky, what is slow, and the order to fix it in. We can then do the fixing.
Fractional tech lead
Part-time technical leadership for founders: architecture calls, hiring help and code review until you have a lead of your own.
Three ways to work with us
2 weeks
Discovery sprint
For ideas that need a plan before a budget.
- Requirements and user flows
- Technical design and estimate
- Clickable prototype
Fixed scope
Project build
A defined product or feature, delivered against milestones.
- Agreed scope and price
- Weekly demos on staging
- Handover docs and training
Monthly
Dedicated team
Ongoing engineering capacity that works inside your process.
- Your Jira board, your standups
- Scale up or down each month
- Billed from tracked issues
How we work
Four steps from first call to handover.
Every engagement follows the same order. You see working software early and approve each stage before the next one starts.
01
Discover
A call to understand the problem, the users and the constraints.
You get: a written brief
02
Scope
We break the work into Jira issues with estimates you can check.
You get: a backlog and a quote
03
Build
Short sprints, demos on staging, and invoices tied to closed issues.
You get: weekly releases
04
Hand over
Docs, access and a walkthrough, with support for as long as you need it.
You get: code you own
Our product
JiJustInvoicitEffortless invoicing, built for developers.
We built JustInvoicit to bill our own clients. Connect Jira, pick the issues you closed, and send an invoice with a payment link in a few clicks.
Jira
Closed issues & story points
GB-412 · GB-418 · GB-421
JustInvoicit
Line items, tax & discounts
hours × rate + GST
Your client
Invoice with a payment link
UPI · QR · Razorpay · bank
Jira integration
Link your Jira account and pull issues into invoices automatically, with live sync as they change.
Multiple payment options
Get paid through Razorpay links, UPI, QR codes or direct bank transfer.
Instant delivery
Send invoices the moment they're ready, with reminders for the ones still unpaid.
Recurring invoices
Set a retainer up once. JustInvoicit generates and sends each invoice on schedule.
Tax & discounts
Apply GST and discounts per line item or across the whole invoice. Totals stay correct.
Hours & expenses
Track working hours per client and log expenses next to the invoices they belong to.
GitHub Coming soon
Link projects, issues and pull requests directly to your invoices.
Figma Coming soon
Attach the designs and prototypes you delivered to the invoice that bills them.
Transparent pricing
One monthly plan with no extra costs. Cancel anytime, no long-term lock-in.
Try JustInvoicit free for 30 days.Risk-free, cancel anytime. Send your first invoice today.
Why gbytes
We use what we build, so we build it carefully.
Running our own product means we live with every decision after launch. We pay for slow queries, flaky webhooks and confusing screens, so we design them out early.
For clients that means fewer handoffs, clear estimates, and invoices you can trace back to the work.
- Team
- Senior engineers only. The people on the call write the code.
- Ownership
- You own the code, the repo and the infrastructure accounts.
- Billing
- Every invoice lists the Jira issues it covers.
- Communication
- Weekly demo, written updates, a shared channel.
Have a project in mind?
Tell us what you're building and where it's stuck. We reply within one working day with next steps.
Email us
Include a short description, timeline and budget range if you have one.