Senior Software Engineer (f/m/d)

Meyandy LLC; Köln; Vor Ort; EUR 90.000 - 120.000; Vollzeit

Benefits dieser Stelle

Hybrid work

Workation

28 vacation days

Extra days off at holidays

Buddy program

Learning & development

Team events

Health program

Permanent contract

Zusammenfassung

Trusted Shops is seeking a Senior Software Engineer to design and build APIs and services for our Trust Authority, working in a hybrid model in Cologne or Berlin. You will implement credential issuance, verification and revocation, develop cross‑platform Web Components, and apply open identity standards like OAuth2/OIDC and Verifiable Credentials.

You will own system design and deploy on AWS using Terraform, with a focus on secure API design and automated testing in CI.

Qualifikationen

• Experience designing and building APIs and services.
• Strong backend and frontend experience with modern web tech.
• Hands-on with AWS and infrastructure as code (Terraform).
• Experience with end-to-end testing frameworks (Playwright/Cypress).

Aufgaben

• Design and build the APIs and services behind our Trust Authority – credential issuance, verification, refresh and revocation.
• Develop cross‑platform Web Components.
• Work with open identity standards such as OAuth2 / OIDC, passkeys, Verifiable Credentials, did:web, Web Bot Auth.
• Own the system design – service boundaries, data models, API contracts – and make the calls that others build on.
• Build and run it on AWS with Terraform (Lambda, ECS, API Gateway, DynamoDB, KMS), including monitoring and alerting.
• Ingest and analyse agent traffic, and turn raw signals into something we can act on.
• Own our automated testing: build the end‑to‑end, contract and visual regression suites in CI (Playwright) from scratch, so we release without manual regression checks.
• Take features from an unclear idea to production and keep them healthy.
• Strong backend engineering in Node.js / TypeScript.
• Frontend experience with JavaScript, TypeScript, HTML, CSS.
• Real API and system design experience: you have designed APIs other teams depend on, and you can explain your trade‑offs.
• Hands‑on AWS and infrastructure as code (Terraform). You deploy your own changes.
• Solid security fundamentals: OAuth2 / OIDC, secure API design, and the basics of signing and key management.
• You have built automated test suites others rely on, not just tests alongside your own features.
• Hands‑on with a modern E2E framework such as Playwright or Cypress.

Kenntnisse

Node.js

TypeScript

API design

OAuth2/OIDC

Web Components

AWS

Terraform

Frontend development

Tools

Terraform

AWS

Lit

Playwright

Cypress

Jobbeschreibung

Trusted Shops creates digital trust between people, businesses, and AI Agents. Every day, millions of consumers rely on our solutions to make confident online decisions, while businesses use our products to build trust, strengthen customer relationships, and grow sustainably. With around 700 colleagues across Europe, more than 25,000 online shops, and over 40 million consumers in our Community of Trust, we are helping shape a safer and more transparent digital world. But trust is not only at the heart of our products – it also shapes how we work together. We believe in collaboration, ownership, and the freedom to do your best work through a flexible hybrid work culture. Join us and help create a digital world where trust, transparency, and meaningful connections drive every interaction.

To strengthen our Engineering Team, we are looking for a Senior Software Engineer (f/m/d) Cologne (hybrid) or Berlin (remote) | Permanent Contract (Full-time).

Key responsibilities

• Design and build the APIs and services behind our Trust Authority – credential issuance, verification, refresh and revocation.
• Develop cross‑platform Web Components.
• Work with open identity standards such as OAuth2 / OIDC, passkeys, Verifiable Credentials, did:web, Web Bot Auth.
• Own the system design – service boundaries, data models, API contracts – and make the calls that others build on.
• Build and run it on AWS with Terraform (Lambda, ECS, API Gateway, DynamoDB, KMS), including monitoring and alerting.
• Ingest and analyse agent traffic, and turn raw signals into something we can act on.
• Own our automated testing: build the end‑to‑end, contract and visual regression suites in CI (Playwright) from scratch, so we release without manual regression checks.
• Take features from an unclear idea to production and keep them healthy.
• Strong backend engineering in Node.js / TypeScript.
• Frontend experience with JavaScript, TypeScript, HTML, CSS.
• Real API and system design experience: you have designed APIs other teams depend on, and you can explain your trade‑offs.
• Hands‑on AWS and infrastructure as code (Terraform). You deploy your own changes.
• Solid security fundamentals: OAuth2 / OIDC, secure API design, and the basics of signing and key management.
• You have built automated test suites others rely on, not just tests alongside your own features.
• Hands‑on with a modern E2E framework such as Playwright or Cypress.
• You're comfortable when the answer isn’t known yet, and you decide with incomplete information.
• Nice‑to‑haves: Keycloak, Verifiable Credentials, DIDs, WebAuthn / passkeys, or HTTP message signatures.
• Event‑driven architecture (SNS / SQS) or data pipelines.
• Web Components (Lit) – parts of our team ship UI that runs inside our customers' websites.

What do we offer you?

• Hybrid work: Combine flexible remote work with team time in the Cologne office (on‑site days depending on your location).
• Workation: Temporarily work from a destination of your choice within EU, Iceland, Liechtenstein or Norway.
• 28 vacation days.
• 2.5 additional days off at Christmas, New Year's Eve and Carnival.
• Buddy program (an experienced trustee is at your side).
• Individual learning & development opportunities (internal & external trainings, e‑learnings).
• Events (Team Events, Unit Events, etc.).
• Health Pass (free online and offline sports, fitness, and health courses).
• Permanent contract with Europe's trusted brand.

BUILD A COMMUNITY OF TRUST WITH US – #cometotrust.

Senior Software Engineer (f/m/d) — Trusted Shops SE (DE), Cologne.