man guitaripod

Engineer who ships systems, not just code.

Six years shipping production iOS, full-stack, and AI across wearable health, cybersecurity, AI, creator economy, and software consulting. End-to-end engagements, ground-up architecture, or embedded on your team.

STATUS: available — open to new engagements

ls ~/capabilities --long

What I do

End-to-end engineering across the stack. Deep expertise on native platforms, AI integration, and production backends.

[01]

Native iOS & SDK

Swift, SwiftUI, UIKit, AVFoundation, HealthKit, Live Activities, Widgets. SDK architecture for consumer and enterprise.

  • Greenfield apps & SDK modularization
  • System-level architecture & migrations
  • App Store rollout & release discipline

[02]

AI integration

Multi-provider LLM abstractions, agentic workers, on-device ML, MCP servers, and production AI pipelines.

  • 6+ frontier model vendors integrated
  • Headless Claude Code in Docker
  • Per-workload model selection

[03]

Backend & infrastructure

Python/FastAPI, Go, Rust, TypeScript. Supabase / Postgres, GCP Cloud Run, Docker, GitHub Actions, Xcode Cloud.

  • API design & realtime systems
  • Cost-optimization & observability
  • CI/CD pipelines end-to-end

git log --employers --stat

Selected engagements

Six years of engineering services shipped to category-leading consumer products. Tap any engagement to expand.

6 years shipping
6,000+ production commits
~790k lines shipped
5 industries
  1. impact

    • Designed and shipped the multi-provider LLM abstraction over six frontier model vendors (OpenAI, Anthropic, Google, Groq, xAI, DeepSeek) — a single typed interface with per-workload model selection (frontier models for analysis, small/fast models for short-form generation).
    • Led the codebase-wide migration off ObservableObject to the @Observable framework — 56 singleton classes rolled out in disciplined tiers — and the parallel migration to type-safe feature gates via a generated enum surface.
    • Unified nine legacy camera implementations into a single CaptureViewController on UIKit + AVFoundation: hot-add audio sessions, share-flow integration, photo-only mode, and protocol-ID normalization across upload paths.
    • Owned the cross-cutting iOS infrastructure: structured logging via os.log, error observability with a typed fingerprint enum (preventing Sentry duplicate-issue sprawl), theme system, notification navigation queue, and the iOS-26 / Liquid Glass forward-compatibility design rules.
    • Built an autonomous DevOps agent end-to-end: Discord slash-commands and error-tracker / bug-report webhooks → headless Claude Code in Docker → draft pull requests against the iOS and backend repos. Plus Xcode Cloud build tracking, App Store review monitoring, and continuous feature-gate validation reporting.
    • Authored the team's engineering handbook the codebase builds against — singleton policy, SwiftUI body-size discipline, Combine-over-NotificationCenter rule, enum-over-raw-string conventions, and iOS-26 forward-compatibility design constraints.

    systems owned

    Multi-provider LLM abstraction@Observable migration (56 classes)Type-safe feature-gate enumUnified camera (9 → 1)Structured logging & Sentry observabilityTheme systemNotification navigation queue7 Live ActivitiesDirect Messaging (UIKit)Voice & AI persona chatAutonomous DevOps agentiOS-26 / Liquid Glass design rules

    stack

    SwiftSwiftUIUIKitCombineObservationAVFoundationHealthKitWidgetKitActivityKitAlamofireStatsigSentryMixpanelPython 3.12FastAPISupabaseRedisCloudinaryGCP Cloud RunDockerGitHub ActionsXcode CloudMCPOpenAIAnthropicGoogleGroqxAIDeepSeek

    1,766 commits · ~185k LOC · 3 codebases · 490 Swift files authored

  2. impact

    • Built the Core foundation module from scratch — five service abstractions (configuration, retry-aware networking, telemetry, dependency discovery, and keychain-backed settings) — then drove a single-source-of-truth migration so every consumer in the SDK reads from Core.
    • Established the per-module template pattern: a typed seven-step sequence (data types → errors → conversions → service → entry point → adapter → legacy cleanup) that every subsequent feature module followed. Pioneered the proof-of-concept module; twelve more shipped to the same shape.
    • Extracted Core as a standalone Swift Package consumed by the SDK and by externally-released modules. Replaced erased Any returns across the xcframework boundary with type-safe protocol APIs that build cleanly in downstream native targets.
    • Built the mock-testing infrastructure that unblocked per-module unit tests — a Core protocol plus a mock implementation that lets each module's tests run without instantiating live dependencies.

    systems owned

    Core foundation modulePer-module template patternStandalone Swift Package extractionType-safe xcframework boundaryMock testing infrastructureUniversal logging interface

    stack

    SwiftSwift Package ManagerxcframeworkXcodeGitHub Actions

    488 commits · ~157k LOC changed · 8 repositories · 120+ PRs merged · 13 feature modules shipped

  3. impact

    • Earned the company's first US work visa sponsorship in its history — granted in recognition of cross-functional impact across the iOS surface, the shared framework family, and the cross-platform data layer.
    • Owned or co-owned consumer-facing features end-to-end: Tap-to-Tag, Tags 2.0, Body Clock & Chronotype, SpO2 variance charts, the Explore tab, App Shortcuts 2.0, the in-app Help redesign, and the Bedtime / Body Clock / scores / heartbeat widgets.
    • Led a statistically-driven personalized-insight system built on a Welch's t-test implementation, packaged as a Swift Package and progressively peeled out of the monolith into the shared tools framework.
    • Contributed to a cross-platform schema source that codegens GRDB models for iOS, Room/Realm for Android, Pydantic for the backend, and JSONSchema TS for the web — single schema, consistent generated code for every consumer.
    • Drove Xcodegen → Tuist build migration and Carthage / CocoaPods retirement in favor of Swift Package Manager.

    systems owned

    Statistical personalized-insight systemTag system 2.0Body Clock & ChronotypeSpO2 chartsCross-platform data-model layerShared analytics surfaceTest-automation identifier packageWidgets & Live Activities

    stack

    SwiftSwiftUIUIKitCombineGRDBHealthKitWidgetKitLive ActivitiesSwift Package ManagerTuistTypeScriptPythonKotlinGitHub ActionsSegment AnalyticsLokaliseSentry

    2,560 commits · ~364k LOC added · 8 repositories

  4. impact

    • Shipped two greenfield apps in parallel sprints — a consumer-facing studio booking app with Stripe-powered course reservations, and an internal project-management surface with timeline, members, and deep-linking.
    • Owned Apollo iOS / GraphQL integration including the apollo-cli codegen build phase, per-screen typed queries, and a domain-type rename pass to peel screen code off raw Apollo types.
    • Built the Stripe SDK integration end-to-end: card-scanning camera entry, environment-aware publishable keys (dev / staging / production isolation), and the full booking → reserve → cart → confirmation flow.
    • Set up Fastlane lanes for TestFlight distribution with Slack notifications; managed AppIcon, launch screens, and provisioning across both projects.

    systems owned

    Apollo iOS / GraphQL data layerStripe payments integrationBooking & reservation flowAuthentication (Apple, email, social)Bilingual localization (EN / FI)Deep-link routerTestFlight CI via Fastlane

    stack

    SwiftUIKitSwiftUIApollo iOSGraphQLStripe iOS SDKLottieFastlaneCocoaPods

    5 production apps · ~28k LOC · sole engineer end-to-end

  5. impact

    • Owned the subscription flow end-to-end: redesigned paywall surface, StoreKit IAP purchase/restore logic, App Store Connect product identifiers across pricing iterations, and a rate-limit-based soft paywall on free-tier tools.
    • Led the authentication overhaul to add Apple Sign-In (the Apple-required alternative to social sign-in), retained Facebook and email paths, and removed Instagram OAuth after Instagram restricted third-party access.
    • Drove the full dark-mode rollout to iOS 13 parity, the Card-layout refactor across Home and Stats surfaces, and the Audience Sentiment / Follower Growth redesigns.
    • Carried the engagement through the brand migration (rename of the source tree, App Store Connect listing, and asset pipeline) into the App Store-ready relaunch build.

    systems owned

    Subscription paywall & IAPAuthentication (Apple, Facebook, email)Hashtag tools (helper, generator, suggested)Caption generatorSponsored-post price calculatorBootcamp (rewarded-ad article unlock)Dark-mode rollout

    stack

    SwiftUIKitStoreKit (IAP)Apple Sign-InFacebook SDKFirebase 6Google AdMobCocoaPods

    925 commits · ~56k LOC · ~150 PRs merged · 100 internal builds

cat ./rates

Engagement options

Two ways to work together. Project-based quotes on request.

Consulting & Advisory

Architecture reviews, technical strategy, and expert guidance.

€200 / hour
  • System design & architecture review
  • Code review & optimization
  • AI integration strategy
Schedule a call
★ preferred

Dedicated Engagement

Embedded engineer, full-time on your team.

€35,000+ / month
  • Full-time, sole or shared focus
  • Direct Slack / async communication
  • Seamless team & toolchain integration
Discuss engagement

Have a specific project? Request a custom quote

cal --book 20min

Let's talk

Free 20-minute call to discuss your project and whether we're a fit.

Prefer email? [email protected]