I build the software field teams carry, and the integrations behind it.
Eighteen years across four platform generations: Java, then Android and iOS at their start, Angular SPAs, now .NET MAUI. Thirteen of them at Sharewire in The Hague, where I went from Android developer to CTO of Salesboard, a multi‑tenant field‑sales platform used by energy, telecom and fibre companies in nine countries, with its Salesforce, Zapier and per‑customer integrations built under my lead. Today I work full stack on FieldBuddy’s field‑service platform and, through B1bee, build on the Amazon SP‑API for a UK logistics client. I work in English and Portuguese, remotely from the Netherlands.
11 yrsas CTO, from developer to acquisition
50+tenants in nine countries, accounts of up to 200 users
ISO 27001co‑initiated in 2015, chaired the security team to 2024
15Amazon marketplaces connected through the SP‑API at B1bee
Work with me · through B1bee B.V.
Three things I do for other companies
Integration engineering for SaaS and marketplacesAmazon SP‑API, Salesforce, HubSpot, Zapier, public APIs and webhooks, partner‑marketplace listings. Fixed‑scope projects or a fractional integration lead on fixed days per month.
Technical due diligenceFor investors, acquirers and founders preparing a sale. Fixed price, ten working days, written report with a red‑amber‑green summary and a cost‑to‑fix estimate.
Xamarin to .NET MAUI migrationsAssessment first, then a fixed‑price migration and store re‑release. Also AngularJS to Angular. Maintenance retainer optional.
Full stack on a field‑service platform used by technicians every day
After Relyon acquired Sharewire and wound down Salesboard, I moved fully to the Relyon product line, now FieldBuddy. In May 2025 I started on FieldBuddy GO, the new offline‑first mobile app for technicians, built in .NET MAUI and Blazor Hybrid for Android and iOS. Since 2026 I work full stack across the platform: the mobile app, the APIs behind it, the back‑office, and the AI assistants being brought into the products and into the engineering workflow.
Alongside, through my own company B1bee, I build and run EasyReports, an Amazon operations workspace on the SP‑API used daily by a UK freight forwarder and prep centre.
Integrations, marketplaces, and the platforms underneath them
Integrations that let big customers keep their systems
2016 – 2024Salesforce partner · Zapier · HubSpot · PipedriveLaravel · public API · SSO
Every Salesboard customer already had a CRM, an ERP and a verification vendor, and none of them would change for a sales tool. So the integration layer became a product in its own right. As a Salesforce partner we built three different Salesforce integrations, from lead sync to closed‑won order flows. A public Zapier app with triggers and actions opened the platform to everyone else, alongside HubSpot and Pipedrive connectors and a central login service for Google, Salesforce and Pipedrive sign‑in.
Underneath sat a shared ServiceHub SDK plus a small Laravel service per customer that took every signed contract and delivered it wherever that customer needed it: third‑party verification vendors, SFTP drops, CRM connectors, order flows for fibre roll‑outs. A documented public API with an automated test suite let customers build their own. At peak the platform served more than fifty tenants across twenty‑two environments in nine countries, with single accounts of two hundred users.
EasyReports: Amazon operations on the SP‑API, built for a prep centre
B1bee B.V. · since 2023Angular · ASP.NET Core · AzureAmazon SP‑API & Ads API · Xero · Stripe · Slack
EasyReports started as my own report downloader for B1bee’s Amazon business and grew, together with FreightNI, a freight forwarder and prep centre in Northern Ireland, into the operations workspace their warehouse runs on every day: product catalog with landed cost and margin per marketplace, replenishments to Amazon FBA and AWD created and tracked through the API, warehouse billing, and the Amazon reports pulled per organisation across fifteen marketplaces.
The work that does not show on screen is the part I sell: taking an SP‑API application through Amazon’s developer registration and restricted‑role approvals, secret rotation via Amazon’s notification queue, a per‑organisation scheduler that respects Amazon’s rate limits and report windows, automated monthly invoicing through the Xero API, Stripe subscriptions, and Slack alerts for the warehouse floor.
Salesboard: a tablet that closes the sale at the door
Salesboard gave door‑to‑door and SME sales reps one device for the whole pitch: leads on a map, branded presentations and pitch cards, forms that fill themselves from address data, and contracts signed on the spot. Managers published content and watched conversions live. Customers included Eneco, E.ON, Essent, Total/Lampiris, Proximus, Delta Fiber, Vodafone, Origin Energy, AGL, toob and Médecins Sans Frontières.
I wrote the first Android tablet app and its JavaScript add‑on API in 2011, led the move to the native iPad and Android generation sold through the app stores, then architected the 2019 pivot to an Angular web app and PWA that replaced both. From 2014 I ran engineering end to end: the multi‑tenant backend, releases, hiring, security, and the company’s side of the independent technical due diligence when Relyon and Main Capital acquired it in 2022. That review is the model for the due diligence I now do for buyers.
Release train, 2014 – 2024 every version from v2.2 to v3.5 cut by me · hover a mark
Field sales lives and dies by addresses. Instead of paying per lookup, I built a geocoding and address service that ingests national open datasets, interpolates house numbers along streets, resolves what a rep types, and serves the addresses around their position. Per‑campaign map tiles were generated with tippecanoe and served from our own tile servers.
It ran in production for a decade and let Salesboard open new countries with data work rather than new licences.
2020 – 2021WebRTC · signalling server · short links · SMS
When door‑to‑door stopped in 2020, we made the pitch work over a browser call. I designed the WebRTC meeting room with screen sharing that needed no software on the customer’s side, and a remote signing flow: the rep sends a short link, the customer signs on their own phone, and the signed PDF flows back through each customer’s integration service to their CRM and ERP.
Agency years: apps for the Dutch public and ministries
2011 – 2013Android · BlackBerry · iOSSharewire, The Hague
Before Salesboard filled every day, I was an Android developer on Sharewire’s agency work: the Greetz card editor, the Buienradar weather apps (where I wrote the test plan and built push notifications), the Ministry of Security and Justice news app launched in December 2012, and the Ministry of Finance apps for Prinsjesdag 2012 and Verantwoordingsdag 2013, where I shipped every Android release. Earlier still, Marktplaats on BlackBerry was my first project.
On the team side I handled releases and production issues for TUI, Pathé and Rijkswaterstaat’s “Van A naar Beter”, and taught the Android track at The Hague Mobile Academy.
Track record
From ESA simulators to field‑service apps
2025 – now
Senior Developer
Relyon Service Management · FieldBuddy, Amsterdam
Full‑stack development across the FieldBuddy platform: the FieldBuddy GO mobile app in .NET MAUI and Blazor Hybrid, the APIs behind it, the back‑office, and AI assistants in the products. Relyon acquired FieldBuddy in May 2025 and now operates under that name.
2023 – now
Founder & engineer
B1bee B.V., The Hague
An Amazon seller in the EU and UK, and the software company behind EasyReports (Amazon operations workspace on the SP‑API, operated with FreightNI Ltd) and Disburse for Amazon (a Google Sheets add‑on for disbursement bookkeeping). From 2026 also the vehicle for integration engineering, technical due diligence and mobile modernisation for other companies.
2014 – 2024
CTO, Salesboard
Sharewire B.V., The Hague · part of Relyon Group from September 2022
Led product engineering through three generations of the platform and roughly sixty enterprise customers.
Co‑initiated the ISO 27001 management system in 2015 and chaired the security team from 2017.
Technical lead through the 2022 acquisition by Relyon and Main Capital Partners, answering the independent due diligence on architecture, code, security and operations; management shareholder.
Built the integration business: Salesforce partner with three integrations, a public Zapier app, HubSpot and Pipedrive connectors, and a per‑customer service layer for enterprise back offices.
Ran technical hiring and a distributed team of in‑house developers and contractors.
2013 – 2014
Teacher, Android track
tHMA, The Hague Mobile Academy
Wrote and taught the developer curriculum for the first cohort: architecture, Android and iOS fundamentals, release process, test planning.
2011 – 2013
Mobile Developer
Sharewire B.V., The Hague
Android developer on agency apps and the first Salesboard tablet app; process owner for development and release in the 2012 ISO 9001 certification.
2011
Mobile Developer
Steape, Amsterdam
Android and BlackBerry work on a native cross‑platform framework for clients such as Allianz, Mondial Assistance, BMW and Q‑Park.
2008 – 2010
Software Engineer
Evolve Space Solutions, Lisbon
Lead developer of the Spacecraft System Visualisation Tool for Thales Alenia Space inside ESA’s Virtual Spacecraft Design study, and of Mobile‑gEO, a GIS app for Android and iPhone with centimetre‑grade GPS over NTRIP.
Security & compliance
Certified, audited, and answerable to customers’ security teams
ISO/IEC 27001 · LRQA · 2015 – 2024
Information security management
One of three people at the 2015 kickoff. Owned the asset inventory, wrote much of the policy set, the Statement of Applicability and the GDPR processing register, and chaired the security team: risk assessments, internal audits, annual pentests, awareness, business continuity. Named auditee for access control, logging and secure development in the external audits.
ISO 9001 · Lloyd’s Register · 2012 – 2015
Quality management
Process owner for software development, build and release in the agency’s certified quality system; authored the development‑to‑production procedure.
Audited internally and externally every year from 2015 to 2024. Customer‑driven security work included penetration tests commissioned by Origin Energy, Proximus and EDP, and vendor security assessments for Centrica and AGL. At B1bee the same habits apply: segregated databases per organisation, encryption in transit and at rest, and Amazon’s data‑protection requirements for SP‑API developers.
Teaching, talks & papers
Sharing the work
The Hague Mobile Academy, 2013: lecturer and Android‑track lead for a programme founded by Sharewire and the City of The Hague.
SESP 2010, ESA‑ESTEC, Noordwijk: “iMoted: 3D virtual reality solution for assembly, integration and test of the space segment” (Cadete, Duro, Araújo, Pereira).
SECESA 2008: “Immersive remote control devices applied in space” (Duro, Cadete, Sousa).
Main Capital CTO Day, 2017, 2019 and 2024; Google I/O 2013; Droidcon NL 2012.
About
Portuguese engineer, Dutch career
I studied Computer Science Engineering at Instituto Superior Técnico in Lisbon (MSc, 2008, thesis on virtual interactions in the space domain), moved to the Netherlands in 2011, and have lived and worked in the Randstad since. Early in the Salesboard years I was mentored by Dirk‑Willem van Gulik, co‑founder of the Apache Software Foundation, who later returned as the independent reviewer of the platform for its acquisition.
I like products where the software has to work in the field, offline, on someone else’s hardware, and where the people using it are not the people who bought it.
I work in English and Portuguese, remotely from the Netherlands on Central European Time. Independent work runs through B1bee B.V., a Dutch company with VAT registration, so contracting is straightforward for clients anywhere in the EU, the UK or beyond.