Fintech and payments platform CTO

Payment system design at the technology arm of a major bank

The bank's fintech arm needed new payment capabilities and a more robust core banking architecture. One of our experts, as head of backend development, designed the payment system, drove improvements in the bank system's architecture, and restructured teams so they could deliver it.

Payment system redesign for startups

A startup's first payment flow didn't hold up as the product grew. One of our experts, acting as CIO/CTO, led the payment system redesign as part of their system-design work across several startups, all of whose products were delivered on schedule.

Taking over a neobank and marketplace codebase from a previous team

Two startups (a neobank and a marketplace) were left with code written by an earlier team. One of our experts stepped in as CTO: worked through the inherited codebase, produced a system design from scratch for what came next, and hired the new team.

Building a backend department for a large online retailer

A large online retailer needed in-house capacity on its enterprise commerce platform and a plan to move toward microservices. One of our experts, as head of backend development, built the commerce-platform department from zero to around fifteen engineers, owned system design and microservice planning, and raised the team's Java level so it could support business requests quickly.

Cutting team and infrastructure costs as a group CTO

A group's technology company needed a digital direction and lower running costs. One of our experts, as CTO, set the company's digital vision, chose the stack, created the system design, oversaw production with scrum practices, and saved costs by optimizing both teams and infrastructure.

Fractional CIO/CTO for several consumer startups

Founders had product ideas but no technical lead. One of our experts worked as a part-time CIO/CTO: discussed requirements with the founders, planned the workflow and system design, found the delivery teams, and kept high-level control of production. The products (dating apps, an e-commerce product and a niche social network) were ready on time.

Running an outsourcing company to well over a hundred people

One of our experts ran an IT outsourcing company for well over a decade as CEO/CIO/CTO, growing it from a team of friends to well over a hundred people. They owned the full cycle, from finding clients to support, and built long-term relationships with most partners.

Telecom OSS/BSS and brokerage systems

Telecom operators and brokers needed back-office systems built and supported. Under one of our experts' leadership, their company delivered telecom OSS/BSS software and a broker support system; they also led work on a stock-exchange trading system and an SMS portal.

Production AI SaaS built with AI pair-coding and human-owned review

One of our experts built and runs an AI SaaS that generates and optimizes job-application documents. The stack is Next.js, a Rust REST API, PostgreSQL and a job queue on Kubernetes with LLM pipelines and prompt templates. They code with several AI assistants in tandem but keep code review and architecture themselves, with CI/CD, automated tests and zero-downtime releases. They report roughly half again the speed with consistent quality.

Learning platform with advanced student testing

One of our experts most recently built a learning-management system with advanced student testing, alongside earlier insurance and banking platforms.

Payment-architecture review for a fintech or marketplace startup

A startup is about to scale transaction volume and isn't sure its payment flows, ledger and reconciliation will hold.

Walk through money flows end to end, check how payment states are stored and audited, how retries and failures are handled, and where provider integrations are coupled to business logic.

Rescue review of an inherited or AI-generated codebase

A founder has a product built by a previous team or mostly by AI tools and must decide whether to keep it.

Map what runs in production, assess the codebase and infrastructure, decide keep / refactor / redesign per component, and outline the team needed.

Architecture review for an e-invoicing and tax-compliance SaaS

A SaaS for sole proprietors and small businesses has to issue electronic invoices, track tax deadlines and handle regime changes, and every rule change ripples through the code.

Review how tax rules and document formats are modelled, how integrations with tax authorities are isolated, and how deadlines and notifications are scheduled.