Senior Backend Engineer, Luzmo

Node.js / Rust

Salary not provided

SQL

AWS

TypeScript

Node.js

Rust

Snowflake

Pulumi

Senior and Expert level

Remote from Europe, UK

More information about location

Embedded analytics platform, purpose built for SaaS companies

Open for applications

Embedded analytics platform, purpose built for SaaS companies

21-100 employees

B2BAnalyticsBusiness IntelligenceSaaSData Integration

Open for applications

Salary not provided

SQL

AWS

TypeScript

Node.js

Rust

Snowflake

Pulumi

Senior and Expert level

Remote from Europe, UK

More information about location

21-100 employees

B2BAnalyticsBusiness IntelligenceSaaSData Integration

Company mission

Luzmo's mission is let end-user analytics fast, effortless and accessible for SaaS companies

Job

Company

Role

Who you are

5+ years of professional experience in backend software development
Strong expertise in Node.js / TypeScript
Solid experience with data modeling and SQL databases like PostgreSQL
Familiarity with NoSQL and OLAP systems (e.g., Clickhouse, Snowflake)
Experience in SaaS product development is a plus
Bonus points for Rust experience, or a willingness to learn it (we use Rust for our query engine)
Strong problem-solving skills and a growth mindset
A true team player, but also capable of working autonomously
Prior experience mentoring junior developers
Detail-oriented and comfortable working in a CI/CD environment
Experience with AWS and Pulumi is a plus
Excellent communication skills in English (written and spoken)
Available to work in the CET timezone

What the job involves

You’ll play a key role in maintaining and developing new features across our backend stack, with the opportunity to work closely with our Rust-based query engine, one of the core components of our product
If you’re passionate about clean code, performance, and working in a collaborative team that values ownership and innovation — we’d love to hear from you
Design, build, and maintain backend services using Node.js and TypeScript
Work with relational databases like PostgreSQL, and NoSQL systems such as Clickhouse or Snowflake
Collaborate with cross-functional teams (Product, Frontend, Platform) to deliver end-to-end features
Take ownership of your work — from concept to deployment
Ensure code quality with tests and best practices — and yes, get a rush when everything turns green
Contribute to continuous deployment and daily shipping workflows
Occasionally travel for team gatherings (1–2 times per year)

Our take

Businesses today know that data can be an immensely valuable asset, helping them make better, more informed decisions - and even surfacing new opportunities. However, it’s not always easy to use data effectively, and implementation can be extremely difficult. Looking to change this is Luzmo (formerly Cumul.io), providing SaaS companies with the tools to provide their users with data-led insights.

Founded in 2015, Luzmo is operating in a similar space to the likes of Tableau and Looker. However, the company has been successfully setting itself apart from competitors by focusing on bringing embedded analytics specifically to SaaS applications.

Reflecting the growing need for quick business decision-making, Luzmo has completed multiple successful funding rounds. With plans to increase the platform's analytical power, the company is also focused on accelerating its international expansion beyond Europe.

Freddie

Company Specialist at Welcome to the Jungle

Company

Funding (last 2 of 4 rounds)

Jan 2023

$11.3m

EARLY VC

Nov 2020

$4m

EARLY VC

Total funding: $16m

Company benefits

Remote working possible
Flexible hours - fully flexible, with no core hours
Unlimited paid time off
Scale-up culture and team spirit
Adding to a smarter world where insights are within everyone's reach
Healthcare
Phone & WiFi stipends
Team learning & development budget
Team building & social budget
Company gatherings - to ensure we all connect at least once per year

Company values

Empower success: Our customers are at the heart of everything. We're obsessed by empowering our customers to be more successful.
Accomplish daily: Tackle small challenges, one step at a time. Incremental learning to accomplish greater things.
Innovate fearlessly: Just because something hasn't been done, doesn't mean it can be. We raise the bar everyday and think outside the box.
Be human: Even though we operate globally, we keep a close human connection to our customers & team.
Have fun: We love a good challenge, but we love some good fun while doing it! At Cumul.io, everyone can be themselves.
Work together: We believe in working together to reach a common vision, with high respect for each individual and their personal situation.

Company HQ

Leuven, Flanders

Leadership

Karel Callens

(CEO)

Previously worked at CSC, initially as a Consultant before becoming a Manager. Also worked at FOD Economie in Big Data and Analytics.

Haroen Vermylen

(CTO)

Experienced Business Intelligent Specialist having previously worked at FOD Volksgezondheid and Fujitsu Technology Solutions. Also worked as a Data Science Leader at CSC.

Thomas De Clerck

(CSO)

Previously worked as an Advanced Business Manager at Altran and as a Senior Export Consultant at Google.

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