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YLD Tech Stack

Software engineering and data consultancy for digital transformation

IT Services and IT Consulting London, England 51–200 employees Founded 2013 Privately Held

YLD is a 51–200-person software and data engineering consultancy based in London, founded in 2013. The stack reflects a modern, polyglot approach: JavaScript/TypeScript/Python for application work, with Python-centric data tooling (dbt, Kafka, Spark, Airflow) layered on AWS cloud infrastructure. The hiring profile is heavily skewed toward senior engineers (22 of 30 active roles) and leadership (3 lead/principal positions), signaling a shift from execution toward delivery leadership and complex engagements—reinforced by active projects in core infrastructure, real-time streaming platforms, and legacy warehouse migrations.

Tech Stack 58 technologies

Core StackJavaScript TypeScript Python RAG dbt Kafka Apache Spark AWS Lambda Apache Airflow CloudWatch Datadog AWS React Node.js Tailwind CSS Vite Figma Redux Go FastAPI LoRA QLoRA RLHF AWS Kinesis SQL esbuild yarn Turborepo MobX CSS+28 more

What YLD Is Building

◆Challenges

Rescuing struggling transformation layers
Scaling data access patterns
Real-time data streaming
Legacy warehouse migrations
Scaling hr operations
Ensuring compliance in portugal
Efficient office experience
Removing operational friction
Eliminating duplicated effort
Lack of in-house demand generation expertise

▲Active Projects

Core infrastructure software
Scaling data access patterns and real-time data streaming
Legacy warehouse migrations
Data platform pipelines
Core foundations of a highly performant, low-latency system
Optimise binary protocols
Streaming and media handling platforms
Integrated inbound and outbound marketing campaigns across priority verticals
Events and community initiatives that raise brand profile
Employer brand and recruitment marketing

Hiring Activity

Accelerating30 roles · 15 in 30d

Department

Engineering

24

Support

2

HR

1

Marketing

1

Seniority

Senior

22

Mid

3

Lead

2

Principal

1

Notable leadership hires: Practice Lead

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About YLD

YLD provides software engineering, data engineering, and product design services to mid-market and enterprise clients undergoing digital transformation. The firm operates as a dedicated-team consultancy: cross-functional squads of engineers, architects, data scientists, and designers embedded within client organizations, often working through pair programming and technical training. Core service areas span infrastructure modernization (Kubernetes, DevOps), data platform work (ETL, real-time streaming, warehouse migrations), and product design (including Design Systems as a service). The company actively recruits across the UK, Portugal, and Germany, with hiring accelerating.

HeadquartersLondon, England

Company Size51–200 employees

Founded2013

Hiring MarketsPortugal, United Kingdom, Germany

Frequently Asked Questions

What tech stack does YLD use?

JavaScript, TypeScript, Python, React, Node.js, dbt, Kafka, Apache Spark, Airflow, AWS (Lambda, Kinesis, CloudWatch), Datadog, FastAPI, and Go. Heavy emphasis on modern data tooling and cloud-native infrastructure.

What is YLD working on?

Core infrastructure modernization, real-time data streaming platforms, legacy warehouse migrations, low-latency system optimization, and scaling data access patterns. Also active in events, community building (Design Systems London), and employer brand initiatives.