Kotlin Developer Hiring Trends in London, United Kingdom

This report was last updated on Aug 10, 2025

Bence Gedai

Founder

I analyze live hiring data and tech job trends across Europe to give CTOs and Product Leaders a strategic edge. By tracking tens of thousands of open roles each week, I uncover which skills, roles, and locations are in highest demand — potential competitors, typical time to hire, talent pool sizes, and more to help you prioritize hiring, benchmark and stay competitive in a fast-moving market.

Key learnings from this report

The Mobile Kotlin job market in United Kingdom London has demonstrated considerable volatility, with a peak of 45 job openings in week 21, followed by a significant decline, indicating a challenging recruitment landscape for hiring managers.
The demand for Mobile Kotlin Engineers is predominantly skewed towards Mid-Senior level positions, comprising 66% of job openings, signifying a strong requirement for experienced professionals in London's tech market.
Currently, London accounts for 93% of all Mobile Engineer job openings in the United Kingdom, underscoring its status as the central hub for Mobile Kotlin Developer opportunities.
The talent pool for Mobile Kotlin Engineers in the United Kingdom is considerably smaller than the job market demand, with a talent pool of approximately 800 against 1,200 job postings, reflecting a competitive hiring environment.
The median time to hire for Mobile Engineers in the UK stands at 33 days, which necessitates strategic recruitment approaches by CTOs and engineering managers to secure top talent promptly, particularly in competitive locations like London.

Number of roles opened and closed for Kotlin Engineers in London in the last 3 months

The Mobile Kotlin job market in United Kingdom London has exhibited notable fluctuations over the past 12 weeks, with a peak of 45 new positions posted in week 21. This rise is followed by a downward trend, culminating in only 4 new jobs listed in week 24. Despite these openings, the recruitment landscape indicates significant challenges, as 31 positions were closed in the same week, suggesting a high turnover rate. In comparison to other roles within the tech sector, the demand for Mobile Kotlin Engineers seems volatile, warranting strategic recruitment approaches for CTOs in the region to attract and retain talent amidst such fluctuations.

Who else is hiring for mobile Engineers in United Kingdom:

Company name	Country	Industry	Founded	# Job openings
TieTalent	Switzerland	Information Technology & Services	2017	55
DataAnnotation	United States	Information Technology & Services	null	41
TELUS Digital	Canada	Information Technology & Services	2005	35
Sigma AI	United States	Information Technology & Services	2008	25
Bending Spoons	Italy	Information Technology & Services	2013	20
JPMorganChase	United States	Financial Services	null	20
Auto Windscreens	United Kingdom	Automotive	1971	18
Mitie Cleaning & Hygiene Services	null	null	null	15
Google	United States	Information Technology & Services	1998	14
bet365	United Kingdom	Gambling & Casinos	2000	13

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Talent pool vs job openings for Mobile Engineers in United Kingdom

How competitive it is to hire Mobile Engineers in United Kingdom

The hiring landscape for Mobile Kotlin Engineers in the United Kingdom is notably challenging, driven by a significant disparity between the number of job openings and the available talent pool. With job listings indicating a count of 1,200 and a talent pool comprising only 800, the ratio of talent pool to job openings stands at 0.67, suggesting a competitive market for hiring managers in London. In contrast, Germany presents a more favorable environment with 1,000 job openings against a 2,500-strong talent pool, yielding a ratio of 2.5. Similarly, France shows a balanced scenario with a count of 900 jobs and a talent pool of 1,800, resulting in a ratio of 2.0. Sweden, however, reflects a tougher situation with only 600 job openings versus 300 available candidates, leading to a ratio of 0.5. As such, while recruiters may find ample opportunities across Europe, securing qualified Mobile Kotlin Developers in the United Kingdom necessitates more strategic recruitment approaches.

Seniority distribution of Kotlin Engineer job openings in London

Seniority Distribution of Kotlin Engineering Jobs in London

In the United Kingdom's London market for Mobile Kotlin engineers, the seniority distribution reveals that 66% of job openings are for Mid-Senior level positions, while 7% are for Directors, and 6% cater to Entry level candidates. This indicates a strong demand for experienced professionals, making it essential for hiring managers to tailor their recruitment strategies accordingly.

Preferred employment type for Engineering roles in United Kingdom

In the United Kingdom's engineering job market, the predominant employment type is full-time positions, accounting for 91% of the total roles available. Following this, contract roles represent 9% of the market, while part-time positions make up a smaller fraction at 2%. This data underscores the significant preference for stable, full-time employment among Mobile Kotlin Engineer job seekers in the UK, particularly in London.

Time to Hire Distribution for Mobile in United Kingdom

How long does it take to hire Mobile Engineers

In the United Kingdom's mobile Kotlin job market, the time to hire showcases significant trends that hiring managers should note. A majority of candidates, 38% of applicants, are hired within 30 days, indicating a competitive and fast-paced recruitment landscape. Interestingly, as the timeline extends beyond 30 days, hiring trends begin to flatten, with fewer candidates being hired between 40 to 100 days. This distribution underscores the necessity for CTOs and engineering managers to refine their recruitment strategies to attract top Mobile Kotlin Engineer talent quickly, especially in major hubs like London, where demand continues to rise.

Expolore reports from other European Developer talent pools

Insights for hiring Mobile Engineers in Kyiv

The Mobile Engineers job market in Kyiv, Ukraine, has witnessed a dynamic fluctuation in job openings, with between 10 to 17 new roles emerging weekly over the past three months, demonstrating a competitive hiring landscape.

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Insights for hiring Mobile Engineers in Grenoble

The Mobile Engineers job market in France, particularly in Grenoble, has exhibited a dynamic landscape with 25 new roles opened and 19 closed in the last three months, indicating a competitive environment for hiring managers.

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Insights for hiring Mobile Engineers in Russia

The Mobile Engineers job market in Russia is currently witnessing steady demand, with job openings averaging between 1 to 2 positions per week over the past 12 weeks, despite an increasing trend of job closures.

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Most popular cities in United Kingdom to hire Mobile Engineers

Top 5 cities in United Kingdom to hire Mobile Engineers

In the United Kingdom, the distribution of Mobile Engineer job openings is predominantly in London, which accounts for 93% of the total relevant jobs. Following London, Manchester represents a mere 9% of the job market, while the broader category of the United Kingdom encompasses only 6%. This data underscores the concentration of Mobile Kotlin Developer opportunities in London, making it the focal point for recruitment strategies targeting Mobile Kotlin Engineers in the region.

Most sought after technologies in London for Kotlin

Key technologies for Kotlin Engineers

In the Mobile Kotlin job market, especially within United Kingdom London, a range of technologies emerge as critical to the role. Notably, Kotlin remains the most utilized technology, with a frequency of 2,683, underscoring its prevalence among Mobile Kotlin Developers. Java also plays a substantial role, with a frequency of 2,480, highlighting its continued importance in mobile application development. Other significant technologies include Android at 696, CI/CD at 260, and Microservices at 543. These technologies are frequently referenced in hiring discussions and are depicted in the accompanying chart, demonstrating the landscape of Mobile Kotlin roles.

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