Key Facts

Remote From:

Full time

Senior (5-10 years)

Hard Skills

Node.js (Javascript Library) TypeScript PostgreSQL JavaScript Libraries B2B Advertising Scale (Map) Systems Design Region Management System Migration

Other Skills

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Communication
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Problem Solving

Diffco

About Diffco

Diffco is a leading app development company of world-class senior developers that boost companies to become market leaders.- 14+ years of experience in Mobile, web, and AI product development.- Launch, accelerate, and support your business applications.- Long-term relationship and focus on reliability and trust.- 1100+ successfully launched projects all over the globe.- We engage the best experts with relevant skills and deep experience in your specific industry to meet your needs.- Award-winning agency. Trust our developers to deliver great cost-effective solutions. We focus on the product and work on the whole project creation from ideation to a sophisticated technological implementation with continuous development and support.What do we offer?- Transparent billing;- Always clear communications with you about everything;- Only dedicated project teams with no cross-project sharing;- Vetting and verification of team member expertise;- Detailed reporting and deliverables. Choose a convenient way to work with us:- Full-project development with hiring a team of dedicated professionals necessary to design, develop and launch your project.- Team augmentation with hiring an expert or a custom group of professionals formed by us and will become a dedicated part of your team.

Company type: SME

Founded: 2018

Company size: 51 - 200

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Job description

We are seeking a Senior Full Stack Engineer to join a fast-growing SaaS company. The role will strengthen existing product teams, accelerate AI readiness initiatives, and support a company-wide rebrand implementation project.

Position: Senior Full Stack Engineer

Location: Central/Western Europe (CET/WET)

Contract: B2B

Responsibilities

Deliver end-to-end features across backend and frontend, with emphasis on backend.
Contribute to refactoring and modernizing systems as well as new feature delivery.
Collaborate with product, design, and research teams in a distributed environment.
Implement design updates as part of a rebranding initiative (typography, assets, UI components).

Must-Have Skills

8+ years in engineering, with proven SaaS/B2B experience.
Strong in TypeScript, Node.js, React, PostgreSQL.
Exposure to system design and scaling at enterprise or large project level.
Ability to ship high-quality features fast.
Experience migrating legacy systems or supporting multi-region infra is a plus.

Soft Skills

Agentic mindset: outcome-driven problem solver, not bound by process.
Excellent cross-team communication in distributed environments.

What we offer:

Competitive salary and bonuses
Flexible work hours
Remote job
Professional development opportunities
Vibrant workplace culture

Why working at Diffco?

Great experience and opportunity:
You will work on the fast-forward projects in Silicon Valley utilizing the latest technologies, methodologies, frameworks and approaches with the ability and time to learn and develop professionally.
Professional and harmonious team of friends:
Our team is a second family, so you would enjoy spending the day working on nice projects with kind people with broad interests.
A vast field for growth:
Learn continuously, expand your skills and demonstrate your professional level and ability to take more responsibility to grow.
Great company culture:
We care about you and are interested in your personal professional goals, motivation and we build a perfect work/life balance.