Azure Cosmos DB Migration Engineer/FinOps

YLD.io; London; Remote; Confidential; Full time

Job summary

YLD.io, a leading software engineering consultancy, seeks an experienced developer to focus on migrating Azure Cosmos DB environments. Join a collaborative team dedicated to enhancing digital capabilities, where your expertise will drive cloud infrastructure optimizations.

Benefits

Flexible working hours

Qualifications

• In-depth knowledge of Azure Cosmos DB NoSQL.
• Experience with RU provisioning changes and container/database consolidation.
• Hands-on experience migrating data using Azure tools.

Responsibilities

• Support migration of Azure Cosmos DB workloads.
• Consolidate containers into fewer databases.
• Update deployment pipelines using Octopus Deploy.

Skills

Azure Cosmos DB

C#

PowerShell

Data Migration

Problem-solving

Tools

Azure Databricks

Azure Data Factory

Cosmos DB Change Feed

Octopus Deploy

Job description

Location: Remote - UK timezone

Department: Engineering

Contract Role

About YLD:

Everything we do is to empower our clients to move forward. Our purpose is to help our clients develop the capabilities they need to outperform their competitors. Our success is a consequence of ensuring our clients are successful. Our company is built on extraordinary people; we aim to attract, inspire, develop and retain them. YLD is a software engineering and design consultancy; we create digital capabilities for our clients that last beyond our engagement. We have offices in London, Lisbon, and Porto.

About the role:

We’re looking for an experienced developer to support the migration of Azure Cosmos DB environments to new, standardized patterns. You’ll work closely with engineering teams to diagnose, consolidate, and optimize database configurations. This role sits within the Cloud & Infrastructure department and reports to a client-side engineering lead.

About you:

You’re a technically strong engineer with experience in Azure Cosmos DB and related Azure tools. You thrive in highly collaborative environments and are confident engaging with multiple teams to drive progress. You’re thoughtful, structured, and proactive in your approach to delivery.

Tasks

Your day-to-day responsibilities will look like this:

• Support the migration of Azure Cosmos DB workloads to target patterns
• Consolidate containers into fewer databases
• Convert provisioning models (e.g., Standard to Autoscaling, Provisioned Throughput to Serverless)
• Perform data migrations between Cosmos DB instances using tools like Azure Databricks, Azure Data Factory, and Cosmos DB Change Feed
• Update deployment pipelines and scripts using Octopus Deploy
• Collaborate with multiple teams to structure, plan, and deliver migration activities

Requirements

You’ll have the following skills and experience:

• In-depth knowledge of Azure Cosmos DB NoSQL

• Experience with RU provisioning changes and container/database consolidation

• Hands-on experience migrating data between containers and databases using:

• Azure Databricks

• Azure Data Factory

• Cosmos DB Change Feed

• Strong C# and PowerShell scripting capabilities

• Experience with Octopus for deployment pipeline updates

• (Nice to have) Familiarity with Azure Key Vault, Microsoft Defender for Cloud, Azure VNET, and Network Security Groups

You’ll be:

• Self-motivated, proactive and constantly looking for ways to improve and develop yourself
• A good communicator, both in writing and verbally – able to explain technical ideas in business-friendly language
• Detail oriented
• A strong problem-solver who balances innovation with pragmatism
• Comfortable working in collaborative, cross-functional teams
• Passionate about diversity, equity and fairness

Benefits

What you’ll get in return:

• The chance to work with a forward-thinking, ethical, and fun group of people and to develop and grow your skills in a fast-moving business.

Our typical Recruitment Process looks like this:

• 1st Interview with someone from the Talent team (30/45 mins)
• Technical Interview with our Senior Developers (1h30)
• Meet and discussion with a Client Partner (15/30 mins)

We live and breathe our values, and know you will too:

• Growing every day
• Including everyone
• Relationships built on honesty and ethics
• Inspiring solutions
• Winning together

We’re an equal-opportunity employer and value diversity of all kinds. We don’t discriminate based on race, religion, colour, national origin, gender, sexual orientation, pregnancy or maternity, age, marital status, or disability status. We also believe in work-life balance and offer flexible working around our core hours.