# Emmanouil Giannisakis

Emmanouil Giannisakis is a remote worker on Himalayas, Product Manager at Bitfly, based in Germany.

Source: https://himalayas.app/@emmanouilgiannisakis

```text
Technical Product Manager at Bitfly, growing beaconcha.in MRR by 36% and launching an API product for Ethereum data.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Germany |
| Authorized to work in | Germany |
| Salary expectations | 70k+ EUR |
| Job categories | Technical Product Manager |
| Skills | Technical Product Management, Product Strategy, Product Roadmap, API Products, Ethereum Proof of Stake, Staking, Validator Data, On Chain Data Products, Digital Assets, Product Discovery, Product Vision, Prioritization, KPI and Success Metrics, Go To Market, Pricing Strategy |

## About

```text
At Bitfly, I own the product roadmap for beaconcha.in, an Ethereum staking and validator data platform used by solo stakers and custodians. I launched a new API product end-to-end, contributing to 13% growth in Enterprise clients, and grew MRR by 36% in 12 months.

I also wrote the specifications for a full beaconcha.in website redesign, which launched in December 2025 and increased website traffic. By combining user interviews, usability tests and usage data, I helped redesign key flows and reduce user friction by 20%.

Before Bitfly, at EPAM Systems, I led product discovery and roadmap work for Bentley Motors, Roche Diabetes Care, Credit Suisse and other clients. My PhD in Human-Computer Interaction informs how I use research and data to turn complex technology into products people can use.
```

## Experience

### Product Manager (current)

Bitfly. Feb 2025 - Present

```text
Owns the product roadmap for beaconcha.in, a leading Ethereum data platform. Launched a new API product, wrote specs for a full website redesign, and led a team of Go and TypeScript engineers with bi-weekly releases.
```

Skills: Product-Management, API-Products, Web3, Ethereum, Go, TypeScript, PostgreSQL, User-Research, Data-Analysis, Pricing, Go-To-Market, AI-Agents

### Chief Product Manager (Consultant)

[EPAM Systems](https://himalayas.app/companies/epam-systems). Nov 2021 - Jan 2024

```text
Led product discovery, defined roadmaps, and ran UX research for clients including Bentley Motors, Roche Diabetes Care, Credit Suisse, Leviat, and Louis Dreyfus Company. Achieved significant cost savings and efficiency improvements through data-driven decisions.
```

Skills: Product-Management, Product-Discovery, Roadmapping, UX-Research, User-Interviews, Prototyping, Stakeholder-Management, Design-Systems, B2B-Software, Financial-Services

### Postdoc / Senior UX Researcher

[University of British Columbia](https://himalayas.app/companies/the-university-of-british-columbia). Sep 2019 - Dec 2021

```text
Conducted research on collaborative software tools, designing and testing prototypes with controlled experiments, interviews, and surveys. Improved workflows by 30% and user satisfaction by 20%.
```

Skills: User-Research, Prototyping, Controlled-Experiments, Interviewing, Survey, Project-Management

### PhD Researcher, Human-Computer Interaction

Télécom Paris. Dec 2015 - Jul 2019

```text
Researched how people learn and use complex software, designing controlled experiments and analyzing behavior data with statistics and regression models. Published 10+ studies at leading HCI conferences.
```

Skills: Human-Computer-Interaction, Experimental-Design, Statistics, regression-analysis, Usability, Research-Publication

## Education

### CareerFoundry

Product Management Certificate, Product Management

```text
Product Management Certificate.
```

### Télécom Paris

PhD, Human-Computer Interaction. 2015 - 2019

```text
PhD in Human-Computer Interaction, focusing on how people learn and use complex software.
```

### Technical University of Denmark

MSc, Digital Media Engineering

```text
MSc in Digital Media Engineering.
```

### University of Athens

BSc, Informatics and Telecommunications

```text
BSc in Informatics and Telecommunications.
```

## Tech stack

- PostgreSQL
- Google Analytics
- Figma
- Jira
- Python
- Go
- Confluence
- TypeScript
- Miro
- SQL
- Microsoft Clarity

To contact Emmanouil, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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