ANDREOS KLERING Engineering Leader & Builder Portugal hey@andreos.dev | linkedin.com/in/aklering | andreos.dev ================================================================================ SUMMARY ================================================================================ Hands-on technology leader with 20 years of end-to-end experience across engineering, product, infrastructure, and organizational scale. Proven success leading distributed teams, architecting modular platforms, and aligning engineering strategy to commercial outcomes in high-growth, API-first SaaS and fintech environments. Brings deep executional rigor, curiosity, and global experience to fast-paced companies ready to scale. ================================================================================ KEY ACHIEVEMENTS ================================================================================ - 20 years in software engineering and leadership - 20+ products shipped from zero across startups and scale-ups - 40+ engineers led at peak (Primer) - 2 startups founded and built (LivingOffset, TargetBeyond) - 3.9M MAUs served (Farfetch Identity platform) - Rauva Pay launched in 3 weeks with >1000% early revenue growth ================================================================================ CORE SKILLS ================================================================================ Engineering Leadership, Team Scaling, Technical Strategy, Backend Architecture, API Design, Distributed Systems, CI/CD, Developer Experience, .NET, TypeScript, AWS, Azure, Kubernetes, Fintech, Payments, SaaS, E-commerce, Identity ================================================================================ EXPERIENCE ================================================================================ HEAD OF ENGINEERING, GROWTH & CUSTOMER EXPERIENCE Nexar, Portugal May 2025 - Present - Leading two teams across B2B and B2C product lines; responsible for customer experience, growth, and marketing platforms in a high-scale vision AI company - Delivered tooling for marketing self-serve deployment, enabling high-velocity experimentation and increasing content throughput across campaigns - Ran end-to-end growth experiments testing conversion impact of product offering changes, influencing roadmap and pricing evolution - Structured the org around autonomy and ownership, improving delivery accountability and async productivity across remote European teams - Embedded observability and dev tooling practices to increase reliability while keeping development lean and adaptable HEAD OF ENGINEERING Rauva, Portugal April 2024 - April 2025 - Scaled and led a 20+ engineer org across 4 squads, boosting throughput by 50% through structural redesign and agile delivery shifts - Launched Rauva Pay in under 3 weeks, overcame regulatory delays for a 3-month rollout, achieving 50%+ cohort adoption and >1000% revenue growth in early stages - Decentralized leadership via new engineering leads, cutting dependencies and increasing sprint predictability - Implemented DORA metrics and qualitative KPIs—test coverage, story-point accuracy—driving 66% bug reduction in one quarter - Shifted release cadence to iterative, decision-driven sprints; slashed lead time and empowered rapid upgrades - Reduced incident time via observability tooling and auto-release pipelines; modernized AWS infra to decrease third-party host costs - Partnered with CEO and Board to align tech roadmap with business goals and budget, preparing for scalable growth PRODUCT ENGINEERING MANAGER, FRAUD Inscribe, Dublin, Ireland (Remote) July 2023 - January 2024 - Led Fraud vertical (~80% of ARR), establishing Product Engineering and AI/Research teams to double development capacity - Introduced prioritization framework increasing throughput 60%, focusing launches on high-value fraud prevention features - Shifted to AI-first detection, improving model accuracy by +5% over iterative deployments - Reduced lead time by 25% through efficient backlog rituals and stakeholder alignment - Delivered enterprise SaaS impact—closing a major financial institution deal—and enabled upsell/revenue via improved fraud accuracy - Enabled client wins with top fintechs like Airbase, Plaid, Ramp; drove over $300K in fraud savings for customers like Ramp and Bluevine HEAD OF ENGINEERING, COMMERCE AND PAYMENT EXPERIENCE Primer, London, UK (Remote) February 2022 - March 2023 - Directed seven squads (~40 engineers), managing 50% of company output across key commerce/payments tools - Re-architected checkout services, accelerating feature delivery by 80%, enhancing resilience and onboarding - Added iterative planning and two-way decision-making—boosted velocity by 50% - Slashed third-party onboarding from one month to two days via developer-focused APIs/tooling - Embedded payment telemetry; delivered 7.5% uplift in authorization rates and 20% cost reduction - Authored org-wide Engineering Principles and Progression Framework - Orchestrated 33% org reorg without impacting deadlines - Built remote-first culture via hackathons and genuine-care coaching ENGINEERING MANAGER (MANAGER OF MANAGERS) Farfetch, Porto, Portugal March 2019 - February 2022 - Scaled Identity & Account engineering from 1 to 4 squads (15+ staff), serving 3.9M MAUs - Launched unified Farfetch Login, cutting login-related support tickets by 50% and enhancing retention - Implemented CI/CD automation for a 90% faster release cadence with daily feature deployments - Reinforced platform scalability through account/catalog architecture, reducing downtime during spikes - Conducted R&D in Web3/NFT identity—positioned Farfetch in future identity tech SENIOR CONSULTANT ThoughtWorks, Brazil September 2018 - January 2019 - Contributed to agile transformation for a leading US retailer's inventory system; improved speed and accuracy of product availability data - Aligned engineering processes with logistics KPIs to support regional warehouse operations FOUNDER, PRODUCT AND ENGINEERING LivingOffset, Dublin, Ireland September 2017 - December 2018 - Founded and led a climate-focused tech startup leveraging blockchain to enable transparent, user-driven carbon offsetting - Directed all product and engineering strategy; defined vision, built roadmap, and oversaw development of web, mobile, and backend systems - Built and managed a 9-person cross-functional team (product, engineering, design), delivering a polished MVP and pilot program - Developed Ethereum-based offset tracking system integrated with verified carbon APIs, ensuring trust and traceability - Shaped the brand and product experience—defined visual identity, UX strategy, and public communications - Managed all technical operations including vendor selection, tooling, infrastructure, and release operations FOUNDER & CEO / CTO TargetBeyond, Brazil November 2012 - October 2017 - Founded 20+ person consultancy delivering full-cycle platforms to clients in banking, betting, and manufacturing - Acted as chief architect and executive sponsor across all engagements - Delivered 20+ software products tailored to specific business needs; enabled ongoing partnerships - Built distributed engineering org across LATAM and Europe; introduced code quality and delivery standards - Managed vendors, infra, budget, and architecture across all accounts SENIOR FULL STACK SOFTWARE ENGINEER De Lage Landen, Dublin, Ireland November 2010 - December 2012 - Contributed to global finance platform modernization, unifying data across legacy systems - Introduced ElasticSearch, cutting query latency by 70% - Led UX redesign for credit workflow; increased resolution rates by 50% - Rolled out CI pipelines and agile delivery—cutting cycle time by 50% - Instituted source control, code reviews, and quality gates; halved prod bugs FULL STACK SOFTWARE ENGINEER, R&D CWI Software, Brazil May 2007 - July 2010 - Developed internal code generation tools reducing manual dev time by 90% - Standardized coding and database practices across projects - Introduced company-wide unit testing and CI systems - Supported senior engineers in architecture reviews and performance tuning ================================================================================ EDUCATION ================================================================================ Bachelor's degree - Information Technology UNISINOS, Brazil 2007 - 2013 Final grade 8.7/10 | Magna cum laude (Class 2013) | Top Student (Class 2013) ================================================================================ LANGUAGES ================================================================================ Portuguese (Native), English (Fluent) ================================================================================ Full metrics methodology: andreos.dev/proof