Solution Expert, Lifecycle Data Platform

Wärtsilä; Helsinki; Hybrid; EUR 85,000 - 110,000; Full time

Job summary

Wärtsilä is seeking a Solution Expert, Lifecycle Data Platform in Helsinki to develop and maintain programs interacting with the Neo4j graph database ecosystem. You will work with GraphQL APIs, AWS Lambda, and Kubernetes, ensuring observability and reliability in cloud environments.

Ideal candidates have IT education (BSc/MSc), data engineering experience, and knowledge of Python, SQL, GraphQL, and cloud technologies; strong English skills are required and a hybrid work arrangement is offered.

Qualifications

• Education in IT field (BSc/MSc) with experience in data engineering and software development.
• Knowledge of Python and SQL and willingness to learn Neo4j and GraphQL.
• Experience with cloud technologies and DevOps/Agile practices.

Responsibilities

• Platform engineering and operations: maintain Neo4j Enterprise and dev systems, updates and monitoring.
• Data modelling and query design: craft Cypher queries, maintain indexes/constraints, optimize queries, refactor models.
• Neo4j knowledge graph modelling: build new data models for business projects.
• Operate critical services: define support models, observability, data catalog, GraphQL schema.
• Develop automated Confluence documentation from GraphQL API schemas.

Skills

Python

SQL

GraphQL

Neo4j

Cloud technologies

DevOps culture

Agile development

English skills

Education

BSc/MSc in IT

Tools

Neo4j

AWS Lambda

Kubernetes

Confluence

Job description

Wärtsilä is an innovative technology company known for being a forerunner in the Marine and Energy markets. Every day, we – Wärtsilians – put our hearts and minds into turning Wärtsilä's purpose of enabling sustainable societies through innovation in technology and services into reality. Our ultimate aim is to provide increased value to both our customers and society. New, game-changing ideas and continuous improvement have been part of our DNA since 1834. Together, we can create new business opportunities and a more sustainable future that we can all be proud of.

We want to transition the world towards a decarbonised and sustainable future. By pushing the boundaries of engineering and technology, we can make it work. We are always on the lookout for future-oriented talent – want to join the ride?

We are looking for a Solution Expert, Lifecycle Data Platform with a main responsibility for the development and maintenance of programs and infrastructure connected to the Neo4j database ecosystem. The preferred location for this position is Helsinki, Finland. We offer a possibility for hybrid remote work.

Your role and responsibilities

As a Solution Expert you will work together with a Solution Engineer, Lifecycle Data Platform, supporting the Product Engineering & Lifecycle Management team to achieve its targets. Your role is about developing and maintaining GraphQL APIs and programs that interact with Neo4j.

These programs are running in AWS Lambda or Kubernetes and the Neo4j itself is running in AWS EC2 virtual machines and in Neo4j enterprise cloud depending on the environment. Maintenance of this ecosystem is also your responsibility. You would be making sure together with the rest of the team that the Neo4j ecosystem is kept up to date, observable, testable, and running with high reliability.

This position contains:

• Platform engineering and operations – maintaining Neo4j Enterprise and development systems, version updates and monitoring
• Data modelling and query design – designing Cypher queries to support business cases, maintaining index definitions and constraints, optimizing Cypher queries, refactoring models
• Neo4j knowledge graph modelling – participating in building new data models in business projects
• Operating business-critical services – defining support models, observability, data catalog, GraphQL schema etc.
• Development of automated Confluence documentation based on schemas in the GraphQL API

How you'll make a difference:

• Plan, document and develop data models and pipelines for current and future solutions
• Participate in business projects as an information and graph data model expert
• Follow coding guidelines and drive for continuous improvements in the way of working
• Contribute to running a reliable and secure platform for the business

You can succeed if you are:

• A skilled communicator, capable of discussing technical concepts in business language
• Able to understand complex problem areas
• Systematic, fact-based, and analytical
• Able to express yourself and interact with other people
• A good person to be around

What do we require from you:

• Suitable education in the Information Technology area (BSc, MSc) and experience in data engineering and software development
• Knowledge of Python, SQL and willingness to learn Neo4j database technology and GraphQL
• Knowledge and experience of software development utilizing cloud technologies
• Experience in DevOps culture and Agile development
• Good spoken and written English skills

Why you and us?

We at Wärtsilä believe in empowerment, ownership, and taking responsibility for our work. We support each other’s growth, and co-creation is the true basis of our innovation. We have the courage to see opportunities and take initiative.

We are authentic and honest, and we strongly believe that by being your own true self you can accomplish so much more. We don’t always get it right the first time, and if mistakes are made, we make sure to learn and grow from them. We want everyone to voice their opinions freely. That is why we have built an environment that empowers you and everyone around you, and where you can feel safe and cared for. Are you eager to be part of this ambition?

We have an amazing team, and we are excited about our work and the impact it has on building sustainable societies. We are looking to find a colleague with this shared passion for smart technologies and a sustainable future.

For further questions, please reach out to Päivi Siltari, Senior Manager PLM and SLM Solutions, on Tuesday October 20, or Wednesday October 21, through [e-mail] or [phone] (only for questions from direct job applicants; applications through email will not be recorded or responded to).

Welcome to join us in shaping the decarbonisation of marine and energy!

Last application date: 25/10/2026

At Wärtsilä we value, respect and embrace all our differences, and are committed to diversity, inclusion and equal employment opportunities; everyone can be their true self and succeed based on their job-relevant merits and abilities.

Please note that according to Wärtsilä policy, voluntary consent for a security check may be required from candidates being considered for this position, depending on the applicable country.

All new Wärtsilä employees in Finland will attend occupational health checks, including drug tests/screenings where applicable. When a person is located outside of Finland, the country legislation is followed.

This is Wärtsilä

Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. Our team of 18,300 professionals, in more than 230 locations in 77 countries, shape the decarbonisation transformation of our industries across the globe. Read more on www.wartsila.com.