A/B Testing Experts in Berlin
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Meet FRATCH Experts in Berlin, who have recently used A/B Testing
William N.
Last position:
Power BI Solutions Architect/Engineer & AI Consultant at AVERDUNG GmbH
- Redesign of the company's BI infrastructure: replacement of a fragmented landscape of manually maintained Excel solutions and CSV imports with a centralized Power BI environment featuring a unified data model as the company-wide single source of truth
- Consolidation of previously isolated reporting logic into a central semantic model – eliminating redundant files, manual data transfers, and inconsistent metrics between departments
- Forecasting & planning: Design and implementation of company-wide liquidity planning in Power BI – from business logic to a fully automated, data-source-driven planning model replacing the previous manual Excel process; enables rolling forecasts and continuously up-to-date cash flow transparency for management
- Optimization of existing Power BI dashboards in terms of performance, structure, and analytical value using an AI-native approach
- Analysis and improvement of the data model, including data quality analyses, data cleansing, and consistent modeling using star schema, DAX, and Power Query
- Incident & anomaly analysis: Identification, investigation, and explanation of data anomalies, including root-cause analysis and concrete recommendations for action
- AI solution architecture: Connecting Business Central and Power BI to LangDock via MCP (Model Context Protocol) for AI-supported data usage
- Creation of a historical data layer as a basis for trend and time-series analyses
- AI-supported automation: Design and development of AI skills, agents, loops, and processes for the automated analysis and interpretation of reports
- Automated reporting workflow: Setup of scheduled, automated email distribution of AI-generated analyses and recommendations to stakeholders
- Gathering and documentation of business requirements and coordination with business departments and IT as part of requirements engineering / product owner activities
- Breaking down overall requirements into clearly defined work packages and tasks
- Definition, prioritization, and management of milestones throughout the entire project lifecycle
Tools: POWER BI, M365, Copilot Studio, MIRO, Microsoft Business Central, Microsoft Fabric, Claude AI, ChatGPT, LangDock, MS VS Code
Chintan P.
Last position:
Product Owner and Technical Product Lead at Sustamize GmbH
LLM-based features for automated CO₂e data extraction from unstructured documents (70% reduction)
Agentic AI pipeline for automated Scope 3 emissions calculations with 150.000+ validated data records
Intelligent API workflows for real-time carbon footprint calculations in ERP and ESG systems
ML algorithms for predicting emissions hotspots and optimizing product design
Automated data validation pipelines with NLP for quality assurance of CO₂e datasets
Led a 15-person cross-functional team in developing 10+ AI features
Strategic product planning and AI roadmap with 35% shorter time-to-market
Stakeholder management with DAX companies (40% higher satisfaction, 95% retention)
On-time project delivery with 95% budget adherence through data-driven backlog management
Agile methods (Scrum, Kanban) with continuous AI/ML integration (25% increase in team velocity)
Product-market fit for AI features through A/B testing and analytics (60% higher adoption rate)
Dmitry P.
Last position:
Freelance Digital Marketing Analyst at Freelance
- Marketing Strategy: Lead the end-to-end analysis and evaluation of cross-channel marketing campaigns across the entire Customer Journey. My focus is identifying optimization potential and deriving clear, actionable recommendations that drive measurable business impact.
- Data Science & AI: Advanced predictive modeling (Churn, LTV), market basket analysis, clustering, and real-time AI-powered audience discovery utilizing RAG/LLMs.
- Marketing Analytics & Measurement: End-to-end attribution analysis, Marketing Mix Modeling (MMM), audience segmentation, conversion path analysis, and A/B testing across all major platforms.
- Data Engineering & Reporting: Designing and managing robust, multi-platform data pipelines (BigQuery, GCP) for data consolidation, automated dashboard generation, and critical API integrations.
Bidya B.
Last position:
Product Manager – Payments & Platform at Pipedrive
CRM and revenue platform managing billing and subscription workflows.
- Scaled payments infrastructure across data products, direct debit expansion and automated abuse prevention, generating $416K in annualized operational savings ($8K/week) by eliminating redundant gateway calls.
- Owned backlog and sprint execution for autonomous checkout abuse detection pipelines, designing real-time risk guardrails and velocity heuristics that blocked card testing attacks.
- Architected enterprise billing migrator user stories and data reconciliation mechanisms, achieving zero-downtime subscription state transitions and cutting $60K in infrastructure overhead.
- Expanded European direct debit (SEPA) payment capabilities, managing cross-squad API dependencies and automated webhook error-handling to eliminate checkout friction.
Abdulla A.
Last position:
Principal AI Product Consultant at Recare
- Shipped Recare Voice Desktop from 0 to 1 in two months, including multi-language clinical documentation that auto-transcribes into structured German medical notes.
- Reduced LLM inference costs by 60–70% across Docs and Extract through prompt caching architecture.
- Built the AI workbench used by PMs/engineers for prompt experimentation and the Langfuse eval stack (10k+ traces evaluated).
Jens S.
Last position:
Marketing Consultant – [New Customer Acquisition (B2B), Social Media, SEO] at Manufacturer of precision metal parts [confidential]
Strategic Marketing / New Customer Acquisition (B2B):
- Market and competitor analysis: Recorded competitors, developed evaluation matrices, outlined the provider landscape with potential customers, competitors and partners
- Designed a cross-media, personalized multi-touch campaign
- Developed the multi-touch strategy in various multi-stage versions, determined touchpoints, target companies and target persons, developed ideal customer profile and contact ideas
- Designed all individual measures: Developed concepts for letters, postcards, landing pages, e-mails, phone calls and downloads
- Visualized the process logic of the contact sequences (flowchart)
- Described the distinction from “Account-Based Marketing”
- Implementation planning: Researched providers for packaging, shipping and landing page software, negotiated terms, recommended tools and partners
Social Media Marketing:
- Goal categorization, definition and recommendations for action
- Review and selection of channels
- Design of channel management
- Developed an 11-week editorial plan (Instagram & LinkedIn)
- Developed, implemented and published image and video posts
- Campaign launch, ongoing monitoring and optimization
Search Engine Optimization (SEO):
- Website audit with indexing check
- Ranking, backlink, traffic and competitor analyses
- Analyzed search and user behavior
- Consulting on SEO risks during relaunches with domain changes
- Keyword research and recommendations for action
Anish G.
Last position:
GTM Intelligence Engine · Open Source
- PROBLEM: GTM effort is guesswork across fragmented identities and channels, with no closed feedback loop.
- BUILT: Cost-pyramid engine (L0–L3): identity resolution across ~25k entities, explainable intent scoring, and a closed decision loop (propose → execute → evaluate → learn) with calibration.
- IMPACT: Shipped v1.3.1 with a live demo; 99% of operations resolve at the free L0 tier (CI-enforced); $0 to run without any API key.
Alicja R.
Last position:
Senior Product Owner BFSG & UX – Web and App Booking Journey at AIDA Cruises
- Lead Product Owner role for the BFSG pilot journey “Search and Book” across web and app, focusing on digital accessibility, UX, conversion, and regulatory implementation.
- Created and prioritized the product backlog; derived user stories and acceptance criteria from legal standards (BFSG, WCAG 2.1)
- Developed a product vision that combines digital accessibility, user-centered UX, and conversion optimization for the booking journey
- Cross-stream release management and quality assurance across the entire web and app area, including go/no-go decisions, rollout, and user acceptance tests
- Coordinated and prioritized with Legal, Compliance, external BFSG consultants, UX, Development, Marketing, and Management
- Conducted user research as well as usability and accessibility tests (including screen readers and keyboard navigation) and prototyping with UX/UI
- Defined KPIs to measure accessibility, conversion, and user guidance
- BFSG pilot journey “Search and Book” successfully delivered: first accessible features rolled out and the foundation for a long-term BFSG-compliant booking journey established
- Established sustainable process integration through close collaboration with consulting partners and internal teams
Rashi J.
Last position:
Design Consultant at Valutics Inc.
- Designing UX for a B2B AI SaaS platform covering the full software development lifecycle, including an orchestration transparency panel showing users which AI model is active at each stage, reducing AI opacity and building user trust in multi-model workflows.
Ha-Jo K.
Last position:
Freelance Product & Platform Lead → Corporate Performance Management at 50Hertz Transmission GmbH (Elia Group)
Leading a team of four application product owners and driving the transformation of fragmented planning and control systems into an integrated multi-technology Corporate Performance Management platform.
- Acting as the Platform Lead within the OneSAP+ organization, owning strategy, roadmap and delivery of a cross-application CPM platform ecosystem
- Restructured and enabled the product organization, establishing a team of four application product owners and a scalable delivery model with external partners
- Aligned independently developed tools into a unified platform, shifting from fragmented solutions to an integrated, use-case driven product experience
- Delivered a Strategic Capacity Planning application (FPM-S) from concept to launch within five months
- Introduced a new technology stack (AAP) and enabled the development of new applications (e.g. Risk App 2.0)
- Defined the CPM Connect 2030 strategy, establishing a clear target architecture for integrated infrastructure planning
- Designed and implemented a central data product (SAP Datasphere) as a single source of truth, reducing manual processes and enabling near real-time data availability
- Translated complex business requirements into structured, scalable product logic across multiple applications
Dhana G.
Last position:
Product Owner / Product Manager at OEConnection India
- Owned end-to-end Product Management and Strategy for a B2B SaaS platform, from customer discovery and problem definition to roadmap, launch, and lifecycle optimization.
- Drove competitive analysis, customer insights, and sales analytics, identifying growth opportunities that improved product fill rates by 10–15%.
- Owned roadmap and backlog prioritization, balancing customer value, business impact, technical feasibility, dependencies, and strategic goals.
- Led a 12-member cross-functional Agile team across Product, Engineering, QA, Design, Sales, and business functions, ensuring aligned and high-quality delivery.
- Built KPI and product performance frameworks using Power BI, Excel, CRM, and Pendo to measure adoption, engagement, conversion, and business impact.
- Led API integrations and partner initiatives across US and Europe, expanding the partner ecosystem by 75% and enabling scalable B2B workflows.
- Led AI and automation initiatives that improved operational efficiency by 75–80% and reduced manual effort by approximately 15 minutes daily.
- Partnered with Sales, Customer Success, Marketing, Design, and Engineering to validate customer needs, launch products, improve UX, and drive adoption.
Kristina H.
Last position:
Editor, Translator and AI Trainer at Freelance
- Producing German website, email and social media copy
- Localising technical website copy from English to German (IT, Tech, consumer products)
- Evaluating AI-generated German texts for factual accuracy, tone, and cultural relevance
- Auditing and correcting synthetic German datasets, reducing grammatical and stylistic errors
Anusha B.
Last position:
Performance Marketing Analyst at Alavya Homes
eCommerce platform for home décor and furnishings, serving European customers.
- Drove 35% QoQ sales growth by optimizing Google & Meta Ads and improving ROI tracking with GA4 and Looker Studio; increased conversions by 47% through CRO and email automation.
- Boosted organic traffic by 300% and top-3 SERP rankings by 130% through SEO audits, keyword clustering, and content optimization.
Technologies used: Google Ads, Meta Ads Manager, Shopify, GA4, Looker Studio, Google Tag Manager, SEO, Email & SMS Automation, TikTok Ads, Influencer Marketing
Sejal V.
Last position:
Data & ML Engineering at Consulting
- Fractional leadership; consulting growth-stage startups and scale-ups on data strategy, ML products, and platform foundations
- Building decisioning systems for growth, personalization, & product experimentation, across e-Commerce, Digital Health, Energy, and Logistics
- Exploring Agentic AI & LLM-based tooling for production readiness patterns
Fahad K.
Last position:
Senior Designer / Founder at Fahaddeartist
I run my own freelance agency based in Berlin and help startups and teams.
- I helped 100+ businesses achieve the digital products they wanted.
- Took ownership of the design process, collaborating with other teams.
- Conducted design thinking, user research, and competitive analysis.
- Developed design concepts, wireframes, and high-fidelity prototypes.
- Optimized websites and their conversion rates to reach more clients.
- I help clients in tech, hospitality, luxury, real estate, and professional services.
- I work with long-term products and clients like Accor, Corso Da Vinci, Webwavers, and ImmoTrust.
Discover over 15,000 top freelancers
Statistics of experts using A/B Testing
Aggregated from the professional profiles of matched freelancers.
Experience
13 years (Germany: 14 years)
Position duration
2.1 years (Germany: 2.2 years)
Positions per freelancer
8 (Germany: 9)
Top business areas
Product Development, Information Technology, Project Management
Top industries
Information Technology, Retail, Banking and Finance
Certification focus areas
Product Development, Information Technology, Business Intelligence
Bachelor's degree or higher
98% (Germany: 93%)
Master's degree or higher
67% (Germany: 61%)
Doctorate
5% (Germany: 4%)
Certifications per freelancer
2
Most common languages
English, German, Spanish
Speak two or more languages
97% (Germany: 98%)
Based on our profile pool as of 9 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Berlin are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging within that range.
Average rates of experts in Berlin using A/B Testing
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 9 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
A/B Testing experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Information Technology (89%)
- Retail (48%)
- Banking and Finance (42%)
- Professional Services (39%)
- Education (37%)
- Media and Entertainment (34%)
- Healthcare (30%)
- Automotive (29%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What it does
A/B testing compares controlled variants of a digital experience to learn which version better supports a defined goal. Teams can test headlines, navigation, checkout flows, pricing presentation, onboarding steps, or product features. The method replaces opinion-led changes with measurable evidence while protecting the original experience as a control.
Where it fits
A/B testing supports ecommerce, subscription products, media, finance, travel, and SaaS. It can improve acquisition pages, account creation, search, recommendations, and in-product journeys. In Berlin, companies often apply it across multilingual websites, mobile products, and fast-moving digital services that need clear decisions from customer behavior.
Tools and methods
Professionals work with experimentation suites and analytics systems such as Optimizely, VWO, Adobe Target, Google Optimize alternatives, Amplitude, Mixpanel, and Google Analytics. Their work may include feature flags, server-side tests, sequential testing, audience targeting, event tracking, and experiment documentation. Strong practice also covers sample quality, guardrail metrics, and avoiding overlapping tests.
Typical assignments
- Define hypotheses, primary metrics, guardrails, and acceptance criteria
- Plan tests for landing pages, funnels, onboarding, and product features
- Configure variants, audiences, events, and experiment exposure
- Validate tracking and analyze results without overstating confidence
- Turn findings into rollout, iteration, or follow-up decisions
Freelance specialists are useful when a team has a testing backlog but lacks measurement discipline, implementation capacity, or an independent review of its conclusions.
When to bring in experts
Bring in A/B testing expertise before a major redesign, conversion initiative, product launch, or analytics migration. It is also valuable when tests produce conflicting results, traffic is split incorrectly, or stakeholders disagree about what success means. Remote collaboration works well when product, analytics, design, and engineering teams share documentation and access; on-site work can help Berlin teams align quickly during discovery and rollout.
What strong specialists show
The best professionals connect business questions to testable hypotheses and choose methods that fit the product, traffic pattern, and release process. They distinguish correlation from experiment evidence, check instrumentation before trusting results, and explain uncertainty clearly. Look for practical experience with experimentation programs, analytics governance, feature delivery, privacy-aware measurement, and communicating decisions to both technical and commercial stakeholders.
Frequently asked questions
The facts hiring teams ask for most often when it comes to A/B Testing.
A/B testing is used to compare two or more versions of a website, app flow, message, or product feature against a defined outcome. Companies use it to improve conversion, engagement, retention, or task completion while measuring the effect of a specific change.
A/B testing usually isolates a focused change between variants, making the result easier to interpret. Multivariate testing changes several elements and evaluates combinations, but it generally requires more traffic and careful analysis of interaction effects.
A strong A/B testing specialist combines experimental design with product analytics, statistics, event instrumentation, and conversion research. Experience with feature flags, SQL, dashboards, UX analysis, and tools such as Optimizely or VWO is also useful.
The right level depends on the scope, risk, and maturity of the experimentation program rather than on a fixed duration. A focused test may need a specialist who can audit tracking and launch one experiment, while a broader program calls for experience in governance, prioritization, and rollout decisions.
A/B testing is well suited to remote collaboration when access, ownership, and experiment documentation are clear. Berlin teams should agree on working language, review routines, analytics permissions, and release coordination before a freelancer starts.
A company should pause A/B testing when the hypothesis is unclear, tracking is unreliable, the audience cannot support a meaningful comparison, or several changes are bundled together. Qualitative research, usability sessions, or staged releases may be better first steps.
Review whether the specialist defines a clear hypothesis, primary metric, guardrails, audience, and decision rule before launch. High-quality work also checks exposure and event data, accounts for novelty or seasonality, documents limitations, and avoids claiming that a result proves more than the experiment supports.
Split testing is a common alternative name for A/B testing, especially in marketing and landing-page work. The underlying approach is the same: expose comparable audience groups to different variants and compare a preselected outcome.
The average hourly rate of freelancers in Berlin, Germany who have used A/B Testing in their recent projects is 81 €, which corresponds to a daily rate of about 652 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used A/B Testing in their recent projects, 98% hold at least a Bachelor's degree, 67% hold at least a Master's degree, and 5% hold a doctorate.
On average, freelancers in Berlin, Germany who have used A/B Testing in their recent projects have 13 years of professional experience, with a single engagement typically lasting around 2.1 years.
The most common languages among freelancers in Berlin, Germany who have used A/B Testing in their recent projects are English (99%), German (95%), and Spanish (14%).
The most common industries among freelancers in Berlin, Germany who have used A/B Testing in their recent projects are Information Technology (89%), Retail (48%), and Banking and Finance (42%).
The most common business areas among freelancers in Berlin, Germany who have used A/B Testing in their recent projects are Product Development (84%), Information Technology (76%), and Project Management (61%).
Main locations of FRATCH Experts, who have recently used A/B Testing
Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.
Hamburg 
Munich 
Cologne 
Frankfurt 
Dusseldorf 
Essen Request a free demo
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FRATCH CEO
