Full-Time

Senior Software Engineer

Catapult

Catapult

1-10 employees

Digital community onboarding and management platform

No salary listed

Wenden, Germany

In Person

Category
Software Engineering (1)
Required Skills
Kotlin
JavaScript
SQL
Java
TypeScript
REST APIs
Angular
Spring

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Requirements
  • At least 5 years of software development experience.
  • Demonstrated experience programming in Typescript, Javascript, and Angular.
  • Demonstrated experience programming in Kotlin or Java.
  • Demonstrated experience working in SQL and designing database schema.
  • Ability to reason about and debug complex systems and applications.
  • Very strong attention to detail.
  • Proven self-starter.
  • Ability to communicate well, both verbally and in writing.
  • Ability to prioritise and a “can-do” attitude.
  • Occasionally providing technical assistance to our customer support team.
Responsibilities
  • Contribute to the full software development lifecycle, including requirements gathering, design, implementation, testing, and deployment.
  • Build and maintain Angular web applications
  • Build and maintain Java Spring Boot APIs and backend services that power our applications
  • Design and implement database schema
  • Profile and optimize query performance in backend applications
  • Engage in architectural discussions to help design scalable and resilient systems.
  • Work directly with Product and Design on scoping and designing features
  • Work in multidisciplinary teams and interface with other engineers in our team and across various domains.
  • Document your work in a shared knowledge base platform.
Desired Qualifications
  • Git code management is highly desired

Catapult helps digital communities onboard new members, manage the community, and explore the community. It provides an onboarding flow, discovery features, and targeted search and profile browsing with multi-faceted profiles that include identity, credentials, and tokens plus a privacy layer. Admin tools let leaders review new joiner information, allocate roles, and segment members for targeted engagement. It differentiates by offering an all-in-one platform for onboarding, management, and exploration in one place, aiming to simplify growing and coordinating digital communities with privacy-aware spaces.

Company Size

1-10

Company Stage

Seed

Total Funding

$5M

Headquarters

London, United Kingdom

Founded

2015

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Simplify Jobs

Simplify's Take

What believers are saying

  • Rav Singh Sandhu said in February 2026 Catapult smashed Stanford benchmarks internally.
  • The team says 2026 launch is coming, signaling active product momentum and urgency.
  • Hiring Founding AI Research Engineer and Senior Engineer roles suggests expansion before launch.

What critics are saying

  • Catapult still lacks a public 2026 launch, revenue proof, or customer-count disclosure.
  • LinkedIn and job posts show only a small founding team hiring in London.
  • Competitors like Notion, Slack, and Circle already own community workflows and user memory.

What makes Catapult unique

  • Catapult combines onboarding, profiles, and community operations in one workflow, reducing tool sprawl.
  • Rav Singh Sandhu said in 2025 Catapult pivoted after nine months of ideation.
  • The 2022 seed round from Blockchain Capital funded product development and early DAO integrations.

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Benefits

Professional Development Budget

Flexible Work Hours

Mental Health Support

Company News

The Business Journals
Mar 1st, 2023
The Funded: Stripe's official valuation could fall by $45 billion as part of a new funding round

Stripe is out looking to raise money. And it's reportedly willing to take an even lower valuation than it was just a few weeks ago.