Senior Technical Lead (Part-Time)

About The Product

We are building a B2B SaaS platform focused on marketing attribution, conversion tracking, revenue measurement and privacy-conscious data collection.

The platform helps businesses understand the difference between platform-reported performance and actual business outcomes by connecting advertising platforms, websites, CRM systems and revenue sources.

Because the platform operates in a privacy-sensitive environment and processes attribution, tracking and revenue data, accuracy, reliability and data integrity are critical.

Our customers rely on the platform to make marketing and business decisions. A bug, release issue or implementation mistake can impact reporting, attribution, revenue calculations, privacy-related functionality and customer trust.

We are looking for a senior technical professional who can help ensure the platform remains stable, secure, maintainable and production-ready as it grows.

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Required Experience

* 7+ years of professional software engineering, platform engineering, release engineering, QA engineering or technical leadership experience
* 5+ years working with production SaaS applications
* 5+ years reviewing production code and pull requests
* Experience acting as a Technical Lead, Senior Engineer, Platform Engineer, Engineering Manager or similar role
* Experience making architectural and technical decisions
* Experience improving engineering standards and development processes
* Experience with production releases and CI/CD workflows
* Experience working with customer-facing production systems

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Must Have

* Strong TypeScript experience
* Strong Next.js and React experience
* Strong backend review experience
* Strong understanding of APIs and backend service design
* Strong PostgreSQL and SQL knowledge
* Experience with GitHub workflows and pull request reviews
* Experience with GitHub Actions and CI/CD pipelines
* Experience reviewing code for maintainability, security and scalability
* Strong understanding of software architecture principles
* Strong understanding of QA and release management processes
* Strong written and spoken English

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Preferred Experience

* Bun
* Hono
* Prisma
* Kysely
* PostgreSQL Row Level Security (RLS)
* Redis / BullMQ
* Kubernetes
* ArgoCD
* Grafana
* Loki
* Prometheus
* Stripe Billing
* Application security
* Privacy/GDPR-sensitive products
* SaaS analytics, attribution or data platforms

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This Role Is Probably Not A Fit If

* You primarily work as a manual QA tester
* You have never reviewed other developers’ code
* You have never been responsible for release quality
* You have never worked on production SaaS systems
* You are not comfortable challenging engineering decisions
* You need detailed instructions for every task
* You are looking for a ticket execution role rather than a technical leadership role

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The Role

We are looking for a Senior Technical Lead who will act as an independent technical reviewer and second set of eyes for a growing SaaS platform.

This is not a primary development role.

You will not be responsible for building most product features.

Instead, your responsibility is ensuring that engineering quality, architecture, releases, infrastructure and technical standards remain at a high level as the platform grows.

You will work closely with the lead developer and founder while maintaining an independent technical perspective.

You should be comfortable:

* Reviewing code
* Reviewing architecture decisions
* Identifying technical debt
* Challenging implementation decisions
* Improving engineering standards
* Improving release quality
* Improving testing quality
* Identifying security and privacy risks
* Providing technical guidance when required

Think of this role as a combination of:

* Senior Engineer
* Technical Lead
* QA Lead
* Release Manager
* Platform Reviewer

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Technical Stack

Languages

* TypeScript
* SQL (PostgreSQL)

Frontend

* Next.js 14
* React
* App Router
* Tailwind CSS
* shadcn/ui

Backend

* Bun
* Hono
* Prisma
* Kysely
* Better Auth

Data & Queueing

* PostgreSQL 16
* JSONB
* Row Level Security (RLS)
* Redis
* BullMQ

Integrations

* Stripe Billing
* Usage Metering
* Resend
* React Email

Infrastructure

* Hetzner Kubernetes Engine
* Kubernetes Secrets
* S3-compatible storage
* GitHub Actions
* ArgoCD
* Grafana
* Loki
* Prometheus

You do not need to be an expert in every tool, but you should be senior enough to understand how these systems interact and identify risks, bottlenecks and improvement opportunities.

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Responsibilities

Technical Review & Oversight

You will regularly review development work and provide technical feedback.

You should be comfortable reviewing:

Frontend

* Next.js
* React
* TypeScript
* User flows
* Responsive behaviour
* Product requirements

Backend

* Bun
* Hono
* APIs
* Authentication flows
* Database interactions
* Business logic
* Data processing workflows

Your focus is not only whether code works, but whether it is:

* Maintainable
* Scalable
* Secure
* Well structured
* Consistent with project standards

You should be able to identify:

* Technical debt
* Architectural risks
* Security risks
* Privacy-related implementation risks
* Improper handling of sensitive data
* Permission and access control issues

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Quality Assurance & Testing

You will help ensure new functionality works correctly before it reaches production.

This includes:

* Feature validation
* Regression testing
* Acceptance testing
* Release testing
* Bug reproduction
* Integration testing
* User flow testing
* Tracking validation
* Revenue attribution validation

You should be comfortable validating:

* Frontend applications
* APIs
* Tracking systems
* Revenue calculations
* CRM integrations
* User permissions
* Reporting systems
* Privacy and consent-related functionality

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GitHub, CI/CD & Release Management

You will help maintain a professional software delivery process.

This includes:

* Branching strategies
* Pull request workflows
* Protected branches
* Merge policies
* GitHub Actions
* CI/CD pipelines
* Release validation
* Deployment workflows
* Staging reviews
* Production release reviews
* Rollback planning

Your goal is to reduce risk and increase confidence in releases.

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Infrastructure & Platform Oversight

You do not need to be a dedicated DevOps engineer.

However, you should be comfortable reviewing infrastructure health and identifying operational risks.

This includes:

* Kubernetes environments
* Docker environments
* Monitoring dashboards
* Logs and alerts
* Resource usage
* Secrets management
* Access control reviews
* Security-related deployment risks

You should be able to identify issues before they become production i ---------- .

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Hands-On Technical Contributions

While the primary focus of this role is review, quality assurance and technical leadership, you should also be comfortable making occasional improvements and fixes when appropriate.

Examples include:

* Small frontend fixes
* Small backend fixes
* CI/CD improvements
* GitHub workflow improvements
* Infrastructure improvements
* Monitoring improvements
* Configuration changes
* Documentation improvements

You will not be responsible for building major product features, but you should be comfortable contributing directly to the codebase when needed.

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What Success Looks Like

* Engineering standards have improved
* Releases are predictable and low risk
* Code quality is consistently high
* Technical debt is visible and managed
* Security and privacy risks are identified early
* Infrastructure is stable and well monitored
* Bugs and regressions are caught before production
* Developers receive actionable technical feedback
* The founder has confidence that the platform is being built correctly