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We understand engineering skill trends like nobody else

GenAI readiness trends

We have aggregated GenAI readiness technical assessments from hundreds of engineering teams from UK, Mainland Europe and the USA. Pre Skiller Whale coaching, the distribution of skills wer [describe].

Tuna Turner

AI Upskilling Impact Report

How upskilling in AI affects sentiment about AI, utilisation of AI tooling, and developer productivity.

January 2026

Read Case Study

AI Upskilling Impact Report

How upskilling in AI affects sentiment about AI, utilisation of AI tooling, and developer productivity.

Read Report

Read Case Study

AI Upskilling Impact Report

How upskilling in AI affects sentiment about AI, utilisation of AI tooling, and developer productivity.

Read Report

Read Case Study

Skiller Whale and Pleo did somethingelit sunt labore ad sint ipsum do in. Reprehenderit enim nulla occaecat officia mollit enim. Non fugiat nisi nostrud. Quis laboris commodo tempor ut do irure.

Read Case Study

AI Upskilling Impact Report

How upskilling in AI affects sentiment about AI, utilisation of AI tooling, and developer productivity.

Skiller Whale and DX worked with a range of teams including Paddle, Fundapps and F-Secure to measure productivity and usage impact from AI upskilling, comparing Skiller Whale with other training options.

Read Report

Skiller Whale and PensionBee elit sunt labore ad sint ipsum do in. Reprehenderit enim nulla occaecat officia mollit enim. Non fugiat nisi nostrud. Quis laboris commodo tempor ut do irure.

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Case study

React Replatforming

400% improvement in throughput and a 40% reduction in cycle time

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

Case study

400% improvement in throughput and a 40% reduction in cycle time

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

Report

React Replatforming

4× faster delivery,
–75% dev time,
Confidence soared.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

Report

4× faster delivery,
–75% dev time,
Confidence soared.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

Case Study

React Replatforming

4× faster delivery,
–75% dev time,
Confidence soared.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

Case Study

4× faster delivery,
–75% dev time,
Confidence soared.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

Case study

React Replatforming

400% improvement in throughput and a 40% reduction in cycle time

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

Case study

400% improvement in throughput and a 40% reduction in cycle time

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

Report

React Replatforming

4× faster delivery,
–75% dev time,
Confidence soared.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

Report

4× faster delivery,
–75% dev time,
Confidence soared.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

Case Study

React Replatforming

4× faster delivery,
–75% dev time,
Confidence soared.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

Case Study

4× faster delivery,
–75% dev time,
Confidence soared.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

400% improvement in throughput and a 40% reduction in cycle time

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

400% improvement in throughput and a 40% reduction in cycle time

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

4× faster delivery,
–75% dev time,
Confidence soared.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

4× faster delivery,
–75% dev time,
Confidence soared.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

4× faster delivery,
–75% dev time,
Confidence soared.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

4× faster delivery,
–75% dev time,
Confidence soared.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Case Study

The impact of learning on productivity and cost

Case study

400% improvement in throughput and a 40% reduction in cycle time

Sitting with senior leaders and classroom teachers to draft a policy that fits how the school teaches.

AI Upskilling Impact Report

Report

Skillerwhale's GenAI Upskilling Impact Report

How upskilling in AI affects sentiment about AI, utilisation of AI tooling, and developer productivity.

Case Study

6x ROI and something something goes here

Sitting with senior leaders and classroom teachers to draft a policy that fits how the school teaches.

Case study

400% improvement in throughput and a 40% reduction in cycle time

In just 12 live micro‑workshops, Pleo’s team built core APIs and transformed its development cadence.

Report

Skillerwhale's GenAI Upskilling Impact Report

How upskilling in AI affects sentiment about AI, utilisation of AI tooling, and developer productivity.

Case Study

6x ROI and something something goes here

Sitting with senior leaders and classroom teachers to draft a policy that fits how the school teaches.

400% improvement in throughput and a 40% reduction in cycle time

In just 12 live micro‑workshops, Pleo’s team built core APIs and transformed its development cadence.

Read Case Study

Skillerwhale's GenAI Upskilling Impact Report

How upskilling in AI affects sentiment about AI, utilisation of AI tooling, and developer productivity.

Read Report

6x ROI and something something goes here

Sitting with senior leaders and classroom teachers to draft a policy that fits how the school teaches.

Read Case Study

400% improvement in throughput and a 40% reduction in cycle time

In just 12 live micro‑workshops, Pleo’s team built core APIs and transformed its development cadence.

Read Case Study

Skillerwhale's GenAI Upskilling Impact Report

How upskilling in AI affects sentiment about AI, utilisation of AI tooling, and developer productivity.

Read Report

6x ROI and something something goes here

Sitting with senior leaders and classroom teachers to draft a policy that fits how the school teaches.

Read Case Study

Watch this space for impact studies with Tesco, Ardoq and CircleCI

Enterprise Readiness pack

We understand engineering skill trends like nobody else

GenAI readiness trends

Use Cases

We understand engineering skill trends like nobody else

GenAI readiness trends

By analysing assessment data from thousands of engineers across sectors ranging from Fintech to Retail, we’ve uncovered compelling trends and skill patterns that define the modern technical landscape.

Key findings include:

The most common gaps for even senior engineers are [LLM topic], [Architecture topic], [Other topic]

The most common gap for mid-level TypeScript engineers is [JavaScript Fundamentals]

Key findings include:

The most common gaps for even senior engineers are [LLM topic], [Architecture topic], [Other topic]

The most common gap for mid-level TypeScript engineers is [JavaScript Fundamentals]

Case Studies

The impact of learning on productivity and cost

Expert-led coaching that fits into your sprint. Real teams. Real blockers. Real results.

DX Study

React Replatforming

4× faster delivery,
–75% dev time,
Confidence soared.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Success Story

DX Study

4× faster delivery,
–75% dev time,
Confidence soared.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Success Story

API Upskilling Success

+235% throughput,
–40% cycle time,
+30% review speed.

In just 12 live micro‑workshops, Pleo’s team built core APIs and transformed its development cadence.

Read Success Story

API Upskilling Success

+235% throughput,
–40% cycle time,
+30% review speed.

In just 12 live micro‑workshops, Pleo’s team built core APIs and transformed its development cadence.

Read Success Story

PensionBee

PostgreSQL Excellence

Engineers became PostgreSQL-ready across the board.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Success Story

PensionBee

Engineers became PostgreSQL-ready across the board.

Focused sessions helped teams master production SQL, leading to stronger reliability, design confidence, and cleaner code.

Read Success Story

Watch this space for impact studies with Tesco, Ardoq and CircleCI

Enterprise Readiness pack →

Use cases

The most common reason that tech leaders turn to Skiller Whale are:

Pleo improved throughput by 235% with Skiller Whale

API Design

Domain-Driven Design

React Native

Tech Leadership

Test-Driven Development

Plandek masters new tech in just 12 Skiller Whale sessions

JavaScript

React

Plandek masters new tech in just 12 Skiller Whale sessions

JavaScript

React

Wagestream engineers became PostgreSQL-ready across the board

JavaScript

Pandas

Python

Python Algorithms

REST API Design

Wagestream engineers became PostgreSQL-ready across the board

JavaScript

Pandas

Python

Python Algorithms

REST API Design

Datamaran increases delivery with Skiller Whale

Python

React

Datamaran increases delivery with Skiller Whale

Python

React

"Creative, innovative and strategic. We have great achievements made together and looking to more"

Henry Arthur

Head of Engineering, Ardoq

"Incredible group of people and talented professionals. Focused on the development of flexible ideas"

Jerome Bell

Product Analyst, Wagestream

"Skiller Whale has been a game-changer for many members of the CTO Craft Community. Their tailored, hands-on approach delivers immediate value, helping technology and engineering teams bridge skills gaps, plus foster a culture of learning. I highly recommend them to any organisation looking to supercharge their team."

Eleanor Pena

Head of Product Design, OakNorth

3000+

Happy customers

50k+

Hours spent

4.8

Review rate

Use cases

Discover how businesses like yours use Skiller Whale
to supercharge their engineering teams.

Pleo improved throughput by 235% with Skiller Whale

API Design

Domain-Driven Design

React Native

Tech Leadership

Test-Driven Development

Plandek masters new tech in just 12 Skiller Whale sessions

JavaScript

React

Plandek masters new tech in just 12 Skiller Whale sessions

JavaScript

React

Wagestream engineers became PostgreSQL-ready across the board

JavaScript

Pandas

Python

Python Algorithms

REST API Design

Wagestream engineers became PostgreSQL-ready across the board

JavaScript

Pandas

Python

Python Algorithms

REST API Design

Datamaran increases delivery with Skiller Whale

Python

React

Datamaran increases delivery with Skiller Whale

Python

React

Skiller Whale is built for…

Skiller Whale is everything your team needs to get more out of every sprint. It's free to try, simple to set up, and cost-effective for your entire company.

CTOs

Team Leads

Developers

Miles Barr

CTO, RLDatix

Skiller Whale's instruction-led approach is a great complement and we've had really positive feedback from the people we've put through the courses already. We're expanding our use of Skiller Whale to allow our R&D team to continuously train on our core technologies.

Miles Barr

CTO, RLDatix

Jérôme Basdevant

CTO, Datamaran

Since we started with Skiller Whale, I can really default to trusting the team to write the code the right way. To the point that I hardly check PRs and code base, and the autonomy has significantly increased.

Jérôme Basdevant

CTO, Datamaran

CTOs

See faster delivery and better code without needing to hire. Measure ROI, reduce waste, and make your team your advantage.

Real-time performance insights

Skills benchmarking across teams

Aligns with your engineering OKRs

Proves ROI on developer growth

See how it impacts delivery

Team Leads

Unblock your devs. Workshops designed to remove real friction and sharpen delivery times by learning and improving together.

Spot and resolve bottlenecks faster

Improve team habits through shared practice

Build confidence in tricky code areas

Learn just-in-time, not just-in-case

Make every stand-up more productive

Chris

Senior Full-Stack Engineer, Pleo

The value of having someone knowledgeable walking through even seemingly simple concepts is really a great benefit. I'm way more inclined to think about concepts or challenge my assumptions, because I can sound them out and get a different view on them, or have them validated/challenged.

Adam Gibson

Staff Software Engineer, OakNorth

SkillerWhale was awesome for our team. The instructors are genuine, passionate, and really care about what they do. They made sure everyone got value from each session, and I saw real improvements in our team’s code hygiene and development practices. I’d definitely recommend SkillerWhale to any team that wants to level up their skills.

Adam Gibson

Staff Software Engineer, OakNorth

a man sitting at a computer with headphones on

James

Software Engineer, Redgate Software

For someone with ADHD, this training stuck where all previous ones didn’t.

Ollie

Software Developer, Hubble

Great exercises used to explain a very cool aspect of python well explained and feels like incredibly practical advice.

Developers

Learn by doing, not by watching. Live, relevant, and focused on what actually matters day to day. Learn new skills alongside your tickets.

Solve real-world problems with experts

Never waste time on irrelevant content

Built-in accountability and support

Learn skills that matter now

How teams use Skiller Whale

See the types of problems we turn into opportunities for faster, cleaner, more confident delivery.

Building API-first

REST API Design

Building API-first

REST API Design

Replatforming

Kotlin

TypeScript

React

AWS

REST API Design

Replatforming

Kotlin

TypeScript

React

AWS

REST API Design

selective focus photography of audio jacks

Optimising infrastructure

Docker

AWS

Optimising infrastructure

Docker

AWS

computer programming codes displayed on a monitor

Improve the quality of our code

Clean Code

Test-Driven Development

Improve the quality of our code

Clean Code

Test-Driven Development

a man sitting in front of a computer on a desk

Database performance optimisation and future proofing

Postgres / SQL

Database performance optimisation and future proofing

Postgres / SQL

gray and black laptop computer on surface

Reducing friction between data and software teams

Clean Code

Test-Driven Development

JavaScript

Reducing friction between data and software teams

Clean Code

Test-Driven Development

JavaScript

a computer screen with a bunch of data on it

Strategic full-stacking

JavaScript

TypeScript

React

Python

Kotlin

Strategic full-stacking

JavaScript

TypeScript

React

Python

Kotlin

Level up my team to be full stack

JavaScript

React

Python

Level up my team to be full stack

JavaScript

React

Python

Release features faster

Save engineer's time

Get my team using a new technology

Save hiring outsourcing costs

Have happy grow engineers who stay

Power Skills

Give your engineers the support they deserve

Live coaching. Real outcomes. Zero fluff.

Book a Demo

No boring videos, no half-days out of the officeJust better learning.

We understand engineering skill trends like nobody else

GenAI readiness trends

Case study

React Replatforming

400% improvement in throughput and a 40% reduction in cycle time

Case study

400% improvement in throughput and a 40% reduction in cycle time

Report

React Replatforming

4× faster delivery,–75% dev time,Confidence soared.

Report

4× faster delivery,–75% dev time,Confidence soared.

Case Study

React Replatforming

4× faster delivery,–75% dev time,Confidence soared.

Case Study

4× faster delivery,–75% dev time,Confidence soared.

Case study

React Replatforming

400% improvement in throughput and a 40% reduction in cycle time

Case study

400% improvement in throughput and a 40% reduction in cycle time

Report

React Replatforming

4× faster delivery,–75% dev time,Confidence soared.

Report

4× faster delivery,–75% dev time,Confidence soared.

Case Study

React Replatforming

4× faster delivery,–75% dev time,Confidence soared.

Case Study

4× faster delivery,–75% dev time,Confidence soared.

4× faster delivery,–75% dev time,Confidence soared.

4× faster delivery,–75% dev time,Confidence soared.

4× faster delivery,–75% dev time,Confidence soared.

4× faster delivery,–75% dev time,Confidence soared.

The impact of learning on productivity and cost

Case study

Report

Case Study

Case study

Report

Case Study

We understand engineering skill trends like nobody else

GenAI readiness trends

Use Cases

We understand engineering skill trends like nobody else

Case Studies

The impact of learning on productivity and cost

DX Study

React Replatforming

4× faster delivery,–75% dev time,Confidence soared.

4× faster delivery,–75% dev time,Confidence soared.

DX Study

4× faster delivery,–75% dev time,Confidence soared.

API Upskilling Success

API Upskilling Success

+235% throughput,–40% cycle time,+30% review speed.

+235% throughput,–40% cycle time,+30% review speed.

API Upskilling Success

+235% throughput,–40% cycle time,+30% review speed.

PensionBee

PostgreSQL Excellence

Engineers became PostgreSQL-ready across the board.

Engineers became PostgreSQL-ready across the board.

PensionBee

Engineers became PostgreSQL-ready across the board.

Use cases

Pleo improved throughput by 235% with Skiller Whale

3000+

50k+

4.8

Use cases

Pleo improved throughput by 235% with Skiller Whale

Skiller Whale is built for…

CTOs

Team Leads

Developers

How teams use Skiller Whale

Give your engineers the support they deserve

4× faster delivery,
–75% dev time,
Confidence soared.

4× faster delivery,
–75% dev time,
Confidence soared.

4× faster delivery,
–75% dev time,
Confidence soared.

4× faster delivery,
–75% dev time,
Confidence soared.

4× faster delivery,
–75% dev time,
Confidence soared.

4× faster delivery,
–75% dev time,
Confidence soared.

4× faster delivery,
–75% dev time,
Confidence soared.

4× faster delivery,
–75% dev time,
Confidence soared.

4× faster delivery,
–75% dev time,
Confidence soared.

4× faster delivery,
–75% dev time,
Confidence soared.

4× faster delivery,
–75% dev time,
Confidence soared.

4× faster delivery,
–75% dev time,
Confidence soared.

4× faster delivery,
–75% dev time,
Confidence soared.

4× faster delivery,
–75% dev time,
Confidence soared.

4× faster delivery,
–75% dev time,
Confidence soared.

+235% throughput,
–40% cycle time,
+30% review speed.

+235% throughput,
–40% cycle time,
+30% review speed.

+235% throughput,
–40% cycle time,
+30% review speed.