Senior Salesforce & Heroku Integrations Engineer

Sii Poland; Rzeszów; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Great Place to Work

Solid financial situation

Contracts with the biggest brands

Centre of internal trainings

Many experts you can learn from

Open and accessible management team

Profit sharing

Passion Sponsorship program

Regular integration events and trips

Comfortable and well-equipped offices

MySii app

Medical care

Job summary

Sii Poland is seeking an experienced Salesforce Developer to join an international team responsible for building and maintaining a modern Salesforce ecosystem used by thousands of users worldwide. This role focuses on integrating Salesforce with Heroku, PostgreSQL, and various APIs to deliver scalable business solutions.

You will own the Heroku platform, manage dynos and add-ons, design integrations with external systems, and collaborate with architects and stakeholders to drive secure,

Qualifications

• Minimum 3 years of commercial experience with the Heroku platform.
• Strong Salesforce architecture and integration knowledge.
• Experience with Heroku Connect and REST APIs.
• Proficient in Node.js, Java, JavaScript, or Python.
• Fluent English and Polish (minimum B2).

Responsibilities

• Own and maintain the Heroku platform and integrations.
• Design and develop Salesforce integrations with external systems.
• Build API-based solutions, webhooks, and data synchronization.
• Optimize performance, stability, and scalability across the platform.
• Collaborate with Salesforce teams, architects and stakeholders.
• Support AI-based integrations and data governance.

Skills

Heroku platform expertise

Salesforce integration

REST API integrations

OAuth 2.0

Node.js/Java/Python

English & Polish (B2)

Residency in Poland

Tools

Heroku

PostgreSQL

Docker

Salesforce

Heroku Connect

Job description

Sii Poland is seeking an experienced Salesforce Developer to join an international team responsible for building and maintaining a modern Salesforce ecosystem used by thousands of users worldwide. This role focuses on integrating Salesforce with Heroku, PostgreSQL, and various APIs to deliver scalable business solutions.

You will own the Heroku platform, manage dynos and add-ons, design integrations with external systems, and collaborate with architects and stakeholders to drive secure,