The engineer who built NCBA for scale, and now faces its biggest integration yet.

Electrical engineering was one of the “hot” professions at Alliance High School when John Gachora was there. That was how he imagined the future. He wanted to be an engineer. Big machines fascinated him, and trains carried a particular magic. They were powerful, exact and visibly in motion, the sort of machinery a village boy could picture himself piloting into a different life.

He did become an engineer. He simply ended up operating machines that are harder to see.

Modern banks are built from deposits, credit models, software, regulation, human judgment, and trust. Their moving parts sit inside data centres and balance sheets. When they work, money appears to travel effortlessly. When they fail, a missed salary, a rejected payment, or a frozen account reminds the customer that there was always machinery underneath.

Gachora has spent more than three decades learning those controls. He is currently the Group Managing Director of NCBA Group Plc. The institution is preparing for its most consequential change since it was created, with South Africa’s Nedbank seeking a controlling 66 percent stake. The boy who once imagined driving a large machine now has to help connect one to an even larger system.

The boy from Gatamaiyu

Gachora was born in 1968 and raised in Gatamaiyu in Kiambu. He was the eighth of 13 children in a farming household. The family grew tea and kept livestock, and the children understood early that work did not wait for ambition. He attended Kamahindu Primary School before Alliance High School placed him among boys whose exposure, accents and family circumstances could be very different from his own.

He has described himself as a village boy. The phrase should not be confused with a lack of ability. According to the recollections of his former mathematics teacher Christopher Khaemba, Gachora led his class for five years.

Alliance had its own social clock. Form One meant confusion and the indignities of being a mono. Form Two brought enough confidence to test rules. By Form Three, a boy began making more serious decisions about the person he wanted to become. In Form Four, the books could no longer be avoided.

Gachora has recalled a school election from that third year. He campaigned, built alliances and emerged as chairman of the Young Farmers Club. He carried the news home expecting his father to be proud. His father heard something else. The family was already farming. Education was supposed to enlarge the son’s choices, not return him to the same work with a certificate and a title.

“Leaders do not fight over a jembe,” his father told him. “Leaders fight over ideas.”

The rebuke hurt. His mother supplied the translation. His father’s severity was not the absence of love, she explained, but an inarticulate expression of expectation. In the family telling, she also made a prediction that sounded improbable to a boy still thinking about engineering.

One day, she said, he might be a banker.

He did not abandon engineering. He carried both messages forward. His father had set the standard. His mother had made it survivable.

Three months that widened the world

In 1989, Alliance selected Gachora for a three-month exchange at Brooks School in North Andover, Massachusetts. His Math teacher, Khaemba, later said the selection considered academics, co-curricular work and awareness of international affairs. A student did not win the place by being good at one thing.

Massachusetts gave Gachora more than a temporary American education. It gave him proximity. He visited the Massachusetts Institute of Technology, learned what admission required and returned to Kenya with a target that had acquired an address. Khaemba helped him apply. MIT admitted him with financial aid, making him the first of his siblings to attend university.

He completed a Bachelor of Science and, in 1994, a Master of Engineering in Electrical Engineering and Computer Science. The train had disappeared from the plan. The engineer had not.

Poverty remained close enough to influence his next decision. After MIT, Gachora set himself a rule. If he could not find a job paying at least $50,000 a year, he would pursue a doctorate. He received three offers. Two paid more. He chose the lower offer on Wall Street because it led in the direction he wanted his career to travel.

Money mattered because insecurity had made it matter. Direction mattered because escaping poverty once was not the same as building a durable life.

The lower-paying door

In 1994, Gachora joined a Credit Suisse securitization group as an IT systems engineer. He did not arrive as a vice-president, as some later accounts would suggest. Over the next decade he learned the financial machinery from inside and rose to vice president and head of structuring for asset securitization.

The progression suited him. Securitization converts pools of assets and future cash flows into securities. It requires the same habits that engineering rewards, including decomposition, modelling, stress, sequence and an intolerance for unexplained outputs.

While at Credit Suisse, he studied at the Wharton School and graduated in 2002 with an MBA through its MBA for Executives programme. He then moved to Bank of America Securities in Charlotte, where he became a managing director and led a financial-engineering team.

The village boy who had once worried about returning to poverty was now working inside institutions that could move billions across borders. Wall Street gave him technical fluency, but it also taught him that finance is never only technical. Every structure distributes risk. Every model embeds assumptions. Every elegant instrument eventually meets a person, a company or a government that must live with its output.

Africa calls him back

In January 2009, Absa had John.

The South African group recruited him as Head of Africa at Absa Capital. His assignment was to shape its strategy beyond South Africa and redefine how Absa Capital and Barclays Capital worked across the continent. By 2010 he was leading Absa Africa, with responsibility at the time for physical banks, about 2,500 employees and roughly 700,000 customers.

His remit was large, but it was not a one-man conquest. Expansion depended on boards, local management, regulators, capital and customers in each market. Gachora’s role was to help fit those pieces into a coherent system. The plan was to deepen the business where Absa already owned banks, work through countries where Barclays had a presence, and enter additional markets where the opportunity justified the cost.

He later served as Managing Director for Corporate and Investment Banking at Barclays Africa. By then, engineering had become his preferred explanation for why a banker trained in circuits could make sense of capital.

Finance, he told The EastAfrican in 2010, was about inputs and outputs. His contribution lay in designing the process between them.

The description was neat. Banking would eventually teach him how untidy the process could become.

Home, before the merger

Gachora returned to Kenya in September 2013 to become Group Managing Director of NIC Bank. He had spent about two decades abroad. NIC was a mid-tier listed lender known for asset finance, with banking operations in Kenya and regional subsidiaries in Tanzania and Uganda.

The appointment did not coincide with the merger that created NCBA. There would be no merger for another six years.

Those six years matter. They placed Gachora inside Kenyan banking during an unusually disruptive period. Mobile money was changing how customers understood convenience. Digital credit was collapsing the distance between application and disbursement. Interest-rate controls altered the economics of conventional lending. Banks needed branches and software, relationships and data, patient deposits and instant decisions.

NIC also gave him the work that an international title can obscure. He had to run a local balance sheet, answer to a listed company’s shareholders, manage regulators, compete for deposits and make strategy survive contact with daily operations. The continental executive became a Kenyan bank operator.

The merger entered the record in December 2018, when NIC and Commercial Bank of Africa authorised talks. Their boards recommended the combination in January 2019. Former CBA shareholders would hold 53 per cent of the merged group and former NIC shareholders 47 per cent.

The industrial logic was persuasive. NIC brought an asset-finance franchise, a listed platform and corporate and small-business relationships. CBA brought a strong corporate and affluent base as well as digital-credit reach built through products such as M-Shwari and Fuliza. One institution had depth in assets. The other had extraordinary distribution through mobile rails.

Gachora was selected to lead the combined group.

The Central Bank of Kenya approved the transaction in August 2019 and the National Treasury followed in September. The merger took effect on 30 September. From 1 October, the holding company became NCBA Group Plc and the Kenyan banking business became NCBA Bank Kenya Plc. At completion, the combined institutions had a reported 9.9% market share and more than 40 million customers across four East African countries. NCBA was then described as Kenya’s third-largest bank by assets. That was a merger-period ranking, not a permanent title.

Two banks and one nervous system

The legal combination took a day. The operating combination took years.

CBA and NIC arrived with different histories, products, people and technology. Customers did not care that the merger documents were complete. They wanted their money to move, their balances to reconcile, and every branch to recognize them.

For a time, the two core banking systems remained separate and communicated through bridging software. The bridge could not expose every piece of customer information. A former CBA customer might still be referred to a former NIC branch. NCBA therefore moved to a single core system in 2020.

The migration produced failed transactions, slow responses and public anger. Customers complained under the bank’s social-media posts. Gachora acknowledged that the systems merger had caused painful moments and publicly asked customers for another chance. The engineer who had spent a career explaining inputs and outputs was now responsible for a machine that would not reliably reboot.

Covid-19 arrived within months of NCBA’s creation and made the integration harder. Staff were dispersed, borrowers needed relief, and the economy slowed just as the new institution was trying to make its systems and culture behave as one. NCBA restructured tens of billions of shillings in customer loans, absorbed merger costs and ended 2020 with profit after tax of about KSh4.6 billion.

This was the adult test of Gachora’s leadership. A merger does not become successful when executives shake hands or regulators sign. It succeeds when customers stop noticing that two institutions were ever separate.

The machine behind the phone

By 2025, the two engines were pulling in the same direction. NCBA reported KSh23.4 billion in annual profit after tax, more than five times its 2020 result. It had expanded its branch network from 89 in 2020 to 123, doubled its conventional core-banking customer base and developed wealth, insurance, leasing and investment-banking businesses around the bank.

Its most distinctive engine remained digital credit. NCBA disbursed KSh1.4 trillion in digital loans during 2025 and its digital business generated about KSh9 billion in profit before tax, equal to 32% of group profit before tax.

The KSh1.4 trillion figure needs its proper label. It is the value of loans disbursed repeatedly over the year, not a KSh1.4 trillion outstanding loan book, asset base or revenue line. Short-duration facilities can be issued, repaid and issued again, causing annual flow to exceed the amount at risk at any one time.

The customer count also needs precision. NCBA reported more than 70 million customer relationships across its markets by the first half of 2026, overwhelmingly through digital platforms. Its investor presentation separately counted about 542,000 core-bank customers. Both figures describe reach, but they do not describe the same relationship. A borrower using Fuliza is not identical to a customer holding a salary account, mortgage, business overdraft or wealth mandate.

Concentration sits inside the scale. Fuliza accounted for roughly nine out of every ten shillings that NCBA disbursed through digital credit in 2025. That partnership with Safaricom gives the bank exceptional access to activity on M-PESA. It also makes a large share of the digital franchise dependent on one product, one set of mobile rails and the commercial terms, consumer rules, data governance and technical resilience around them.

NCBA is therefore neither a conventional bank with a useful app nor a fintech wearing a banking licence. It is a hybrid institution. Branch relationships, corporate deposits and vehicle finance sit beside a high-velocity digital-credit factory whose loans can be requested and repaid without a customer ever entering a bank.

Scale, and what it can hide

NCBA entered 2026 with momentum. For the six months to June, profit after tax rose 12.2% to KSh12.4 billion. Assets reached KSh739 billion, customer deposits KSh551 billion and gross loans about KSh382 billion. The digital business produced KSh5 billion in profit before tax, up 49%, while mobile banking carried 94% of the group’s transaction volume.

The same accounts contained a caution. Credit-loss provisions rose to KSh5.2 billion from KSh3.2 billion a year earlier. Gross non-performing loans increased to KSh40.3 billion from KSh35.8 billion at the end of 2025. The non-performing-loan ratio still improved to 10.5% because the total loan book grew quickly, and it remained below the 15.3% Kenyan industry figure cited by NCBA. A falling ratio and a rising stock of bad loans can be true at the same time.

The bank had room to absorb stress. Its total capital ratio stood at 21.7% against a 14.5% regulatory minimum, and return on average equity was 19%. It also invested KSh2.4 billion in technology during the half-year, reporting 99.68% system uptime. Six years after the failed migration, resilience had become a measured operating priority rather than an aspiration.

NCBA’s new strategy for 2026 to 2030 is called Ubuntu. It aims to fortify the core business, scale wealth, consumer, small-business and insurance products, enter new growth frontiers and build a more adaptable organisation. The declared goal is a top-five East African banking group by 2030.

The ambition is continental. The earnings remain predominantly Kenyan. The Kenya banking business supplied 82% of group profit before tax in 2025. Uganda, Tanzania and Rwanda are growing branch-banking operations, while Côte d’Ivoire and Ghana are digital markets rather than equivalent full-service franchises. Expansion will be judged by how much durable profit and customer depth the group creates outside Kenya, not by how many countries appear on a map.

Responsibility at the top

Institutional scale brings public scrutiny as well as revenue.

In April 2025, the High Court invalidated the KSh384.5 million stamp-duty exemption granted for the NIC-CBA merger, finding that the exemption had not been shown to serve the public interest and violated the legal requirements governing public finance. NCBA appealed. The High Court later declined to suspend the ruling while that appeal proceeded, and no final appellate determination was public by 28 August 2026. The judgment concerned the lawfulness of a public concession. It did not make a finding of personal wrongdoing against Gachora.

A separate dispute reached the courts in August 2026. The Director of Public Prosecutions sought to charge NCBA Bank Kenya and Gachora over an alleged failure to report suspicious transactions connected to the alleged theft of KSh363.3 million from First Assurance Investment. The action also involved the heads of KCB and Co-operative Bank.

NCBA and Gachora deny liability. They argue that the Proceeds of Crime and Anti-Money Laundering Act places suspicious-transaction reporting obligations on the reporting institution through its designated compliance structures, rather than imposing personal criminal liability on a group managing director without an identified act, knowledge or intent. The High Court stayed the prosecution while it considers their challenge. The allegations remain unproved and no court has found Gachora or NCBA guilty of the proposed offences.

The case asks a question that reaches beyond one executive. A modern bank distributes responsibility through boards, subsidiaries, compliance officers, algorithms and reporting lines. The law must still decide when an institutional failure becomes the personal criminal responsibility of the person at the top. For an executive who has always described banking as a system of inputs and outputs, it is a severe version of an old engineering problem. Who owns the output when the process has been delegated?

A South African circle closes

On 21 January 2026, Nedbank announced an offer to acquire about 66% of NCBA. The consideration was valued at roughly R13.9 billion when announced and structured as 20 percent cash and 80 percent newly issued Nedbank shares. If completed, NCBA will become a Nedbank subsidiary while the remaining 34 percent continues to trade on the Nairobi Securities Exchange.

The offer closed on 10 July. Shareholders tendered 79.9 percent of all NCBA shares, enough to meet Nedbank’s target with applications at about 122 percent of the stake it sought. Several regulators had approved the transaction by August, but remaining conditions and approvals were still outstanding. Completion was expected near the end of the third quarter or early in the fourth.

The tender has closed. Control has not yet transferred.

Nedbank brings a larger balance sheet, corporate and investment-banking capabilities and access to international financial centres. NCBA gives Nedbank the East African platform it has lacked, a Kenyan banking franchise, regional licences and digital-credit distribution at a scale that would take years to build organically. The transaction can accelerate NCBA’s strategy and give its customers access to larger-ticket funding and wider cross-border networks.

Control carries harder questions. Thirty-four percent of NCBA will remain publicly held in Nairobi under a 66 percent controlling shareholder. Nedbank and NCBA say the local brand, board and management will remain. That describes the intended opening arrangement. It does not remove the need to watch how capital allocation, technology, data, dividends, executive appointments and regional priorities evolve once one shareholder can determine the outcome of most ordinary resolutions.

For Gachora, the transaction closes a continental circle. He once worked in South Africa helping Absa and Barclays expand across the continent. He returned to Kenya to run NIC, then helped combine it with CBA to create a larger indigenous group. A South African bank is now seeking control of the institution he assembled.

In 2010, he warned that South African and Nigerian banks would continue to dominate sub-Saharan Africa unless other African institutions built critical mass. NCBA became one answer to that warning. Nedbank’s offer is both a validation of the asset he helped build and a complication of the independence that scale was meant to secure.

The next machine

Gachora’s old preference for privacy has had to coexist with the visibility of running a system this large. Away from banking, earlier interviews found him with his family, on a farm among avocados, eucalyptus and casuarina, or struggling cheerfully with golf. In 2014, he described a Mercedes as his one extravagance. The details were small, which is why they humanized the banker behind the balance sheet.

His public legacy will be settled elsewhere.

At Alliance, his father’s lesson was that leaders should fight over ideas, not a jembe. At MIT he learned to trace inputs through a system. Wall Street taught him how capital can be engineered. Absa taught him continental scale. NIC taught him the local market. The NCBA merger taught him that two sound institutions do not become one simply because the diagram says they should.

Nedbank is the largest system change yet.

The boy from Gatamaiyu wanted to drive the big machines. The banker he became must now help connect a Kenyan financial machine to a larger African one without surrendering the local judgment that made it valuable. The next chapter will not be judged by transaction value or customer numbers alone. It will be judged by whether scale strengthens the institution without making it less its own.

The final test is not whether Gachora’s hand remains on the controls. It is whether the machine still knows where it is going.