Senior Software Engineer - Backend / Node.js & TypeScript”

Portchain; København; On-site; DKK 900,000 - 1,200,000; Full time

Benefits offered by this job

Competitive salary

Company pension

Flexible working hours

Lunch and snacks

Learning budget

Job summary

Portchain seeks a Senior Software Engineer (backend) with deep Node.js and TypeScript experience to build services, APIs, and integrations powering maritime workflows. You will own features from design through production and work in autonomous product teams.

The stack includes Node.js, TypeScript, PostgreSQL, and Google Cloud, with Terraform, GitHub Actions, and Datadog supporting deployment, observability, and reliability.

Qualifications

• Extensive production backend experience with Node.js and TypeScript.
• Strong relational database design, SQL, transactions, and performance optimization.
• Experience designing robust APIs and integrating systems with varying data formats.

Responsibilities

• Build services, APIs, and integrations powering carrier and terminal workflows.
• Own features from design through production and monitoring.
• Collaborate with Product to turn customer problems into scalable solutions.

Skills

Node.js

TypeScript

PostgreSQL

API design

Cloud orchestration

Tools

Terraform

GitHub Actions

Datadog

Google Cloud

SQL tooling

Job description

About Portchain

Portchain exists to make maritime shipping more predictable, efficient, and green. We help shipping companies and terminals coordinate around shared, trustworthy information to reduce delays, fuel consumption, and emissions.

Our products support some of the world’s largest shipping companies, with more than 200 terminals connected through the Portchain Network.

The role

We’re looking for a Senior Software Engineer with deep backend experience in Node.js and TypeScript.

You’ll build services, APIs, and integrations that power carrier and terminal workflows, berth planning, and new products. Working closely with Product, you’ll turn customer problems into simple, scalable solutions and own your work from design through production.

Our stack includes Node.js, TypeScript, PostgreSQL, and Google Cloud, with Terraform, GitHub Actions, and Datadog.

How we work

We work in autonomous product teams of four or more engineers, each supported by a dedicated Product Manager. We deploy several times a day and take responsibility for running and improving what we build.

We care about craftsmanship: understandable code, trustworthy data, thoughtful user experiences, and systems that remain reliable and maintainable. We balance that care with pragmatic decisions and learning through frequent releases.

Curiosity matters here. We ask questions, explore customer problems, challenge assumptions, and learn from each other and from mistakes without blame.

How we use AI

AI is a core part of our engineering workflow. We use it for exploration, implementation, review, and technical sparring, and share useful practices with the team.

The final judgment remains with the engineer. We expect you to understand, review, validate, and be able to defend the code and decisions you ship, while protecting customer and company data.

What we’re looking for

• Substantial experience building and operating production backend systems with Node.js and TypeScript, including asynchronous execution, error handling, and diagnosing production issues.
• Strong relational database skills: schema design, SQL, transactions, and query performance. We use PostgreSQL.
• Experience designing robust APIs and integrating systems with different data formats and reliability characteristics.
• Experience deploying and operating software on GCP, AWS, Azure, or a similar cloud platform.
• Sound architectural judgment, pride in your craft, and the ability to turn loosely defined problems into pragmatic solutions.
• Curiosity about unfamiliar domains and technologies, clear communication, and a collaborative approach to end-to-end ownership.

Useful extras include

GCP/Cloud Run, Terraform, CI/CD and observability, complex data ingestion, ISO 27001 or SOC 2 experience, and breadth across languages or technical side projects.

What we offer

• Meaningful work with global economic and environmental impact.
• Influence over products, architecture, and ways of working.
• Experienced, curious, and supportive colleagues.
• Competitive compensation and pension.
• Flexible working hours in our Copenhagen office.
• Subsidized lunch, snacks, and drinks.
• A dedicated development budget and support for continued learning.