Engineering
Design, build, and modernize the products and platforms behind financial services.
Fintech software carries obligations that other software does not: card data scope, audit trails, uptime expectations, and integrations with processors that document poorly and change often. Our engineering practice builds with those constraints as defaults, from a first proof of concept to a production platform processing at scale.
Built for every buyer we serve
Fintech startups, ISOs and PayFacs building portals, SaaS platforms embedding payments, and enterprises modernizing financial applications.
Specialist services in Engineering
Buy one, or several together. Every engagement is custom quoted after an Assess.
The framework, applied here
Each step ends in a written decision, never on a date.
- Step 01
Discover
Requirements, architecture, integration map, and a delivery plan with fixed milestones.
- Step 02
Design
UX and UI built on tested patterns for onboarding, dashboards, and transaction views.
- Step 03
Build
Sprint delivery with code review, automated testing, and weekly demos.
- Step 04
Integrate
Processor, gateway, bank, KYC, and CRM integrations, with sandbox and production certification.
- Step 05
Operate
Handoff with documentation, or ongoing support and managed cloud through our infrastructure practice.
What makes this different
These are specific to Engineering, and they are in the scope document rather than only on this page.
Fintech constraints are the default
Card data scope, audit trails, and uptime expectations are designed in from the first commit, not retrofitted later.
Integrations that survive change
Processor, gateway, bank, and KYC work assumes poor documentation and moving targets, with sandbox and production certification.
Weekly demos against fixed milestones
Sprint delivery with code review and automated testing you can inspect while it is being written.
You own the code
Repositories, documentation, and runbooks transfer to you as each deliverable is accepted.
What clients say
We publish no client names. These describe the shape of real engagements in Engineering.
We had been quoted eighteen months and seven figures to register as a PayFac. Midcore mapped the alternative in two weeks and told us plainly that our volume did not justify it yet. That conversation saved us a year.
Our agents were spending half their week on paperwork. The desk took the boarding queue, the disputes, and the residual reconciliation. Same headcount on the sales side, materially more selling.
They found variances in our residual statements that had been running for years. What mattered more was the monthly reconciliation they left behind, so it does not happen again.
Written by people who have done the work
Articles from the Engineering practice.
All insightsA business operations audit usually finds the same three things: records that cannot prove what they claim, unrevoked access, and an untracked cost.
10 min read IT Staff Augmentation vs Outsourcing: What Actually DiffersIT staff augmentation and outsourcing differ on who directs the work day to day, and that one fact decides who owns what gets built and who bears legal risk.
10 min read Chargeback Management for Growing ISOsAs a portfolio grows, Visa stops judging disputes merchant by merchant. It judges the whole aggregated book, and the rules changed in 2026.
10 min readStraight answers
The questions that come up on almost every Engineering call, answered before you have to ask them.
How does an engagement start?
What does Engineering cost?
Can we stop after the Assess?
How long does Engineering take?
Who actually does the work?
Do you work inside our systems?
What do you need from us to start?
Still not sure Engineering is what you need?
That is what the Assess is for. Book a 30-minute call and we will tell you which service fits, whether you need one at all, and what the first engagement would cost. We will also tell you when the answer is no.
Ready to talk about Engineering?
Tell us what is happening. We will tell you which service fits, and whether you need one at all.
- 01Within 1 business dayA US-based practice lead replies and books a 30 minute call.
- 02On the callWe map the problem, the volume, the partners, and the constraints.
- 03After the callYou get a written read of one to three pages, yours to keep.
- Handled under NDA
- Written, not a slide deck
- No obligation to continue