Full-Stack Engineer

Playmerce Solutions Oy; Helsinki; Hybrid; EUR 60,000 - 80,000; Full time

Benefits offered by this job

Flexible work environment

Competitive compensation with stock options

Devices of your choice for work setup

Job summary

A fast-growing startup is seeking a skilled Full-Stack Engineer to develop and maintain their server-side software while designing scalable solutions. The ideal candidate will have over 5 years of experience in full-stack development, strong skills in React, Node, and TypeScript, and a passion for solving complex problems. This role offers a competitive salary with stock options and the opportunity to shape the future of the company in a flexible work environment.

Qualifications

• 5+ years of full-stack development experience required.
• Strong experience in React, Node, and TypeScript is essential.
• Fluent in spoken and written English.

Responsibilities

• Develop and maintain server-side software.
• Design architecture and scalable solutions.
• Write thorough tests and apply systematic debugging.

Skills

Full-stack development experience

Strong experience in React

Strong experience in Node

Strong experience in TypeScript

Problem-solving skills

Fluent English

Education

Bachelor's degree in Computer Science or Engineering

Tools

PostgreSQL

Git

AWS

Docker

Job description

At Playmerce, we build an Engine that powers Shopify storefronts to convert at scale. We help merchants grow their store smarter by turning undecided visitors into revenue.

We're a fast-growing startup backed by leading Finnish angel investors, led by an ambitious founding team with a proven track record, including a prior successful exit. We seek world-class talent to step into the most challenging and rewarding role: shaping the future of our company from the ground up.

You'll thrive here if solving problems excites you and your ambition is to turn bold ideas into a company that makes a real impact. We operate in a fast-paced and no-hierarchy environment where building solutions is the primary focus.

People here are trusted to choose the right tools for the job, grow their expertise, and build products that scale globally. Our purpose is to help merchants become discovery economy era winners. Read the full story here.

The Position

As a Full-Stack Engineer, you'll play a pivotal role in the development of our Engine so that it scales for thousands of our Shopify merchant clients. You will build complex systems that drive sales to stores around the world, and invent and introduce new kinds of shopping experiences. You will work closely with both front-end and back-end teams to integrate new features. You may gravitate more towards one aspect of the work, depending on changing needs and your interests.

You will be solving advanced technical challenges and seeing your solutions drive tangible results in real-time. As a key member of a growing startup, you'll have the opportunity to shape the future of our product and truly own your impact, making every day rewarding and full of growth.

What You'll Do

• Develop and maintain our server-side software.
• Design architecture and scalable solutions.
• Write thorough tests and apply systematic debugging.
• Ensure our databases handle fast international growth.
• Contribute to new products and features from concept to launch.
• Provide technical guidance and code reviews for the engineering team.
• Document integration solutions, APIs, and architecture.
• Collaborate with merchants to resolve challenges and drive improvements.

What We Expect

• Bachelor's degree in Computer Science, Engineering, or equivalent experience.
• 5+ years of full-stack development experience.
• Strong experience in React/Node/TypeScript.
• Experience in PostgreSQL databases.
• Strong problem-solving skills with an ability to resolve complex technical issues.
• Commitment to delivering high-quality, well-tested code.
• Passion for problem-solving beyond code: ownership, initiative, and collaboration.
• Fluent in spoken and written English.

Nice-to-Haves

• Familiarity with the Shopify eCommerce platform, or something similar.
• Understanding of security best practices, and architecture.
• Experience with UI/UX design principles and design tools.
• Fluent in spoken and written Finnish.

Technologies You'll Work With

• Frontend: React, TypeScript
• Infrastructure: Git, AWS, Docker

What We Offer

• Devices of your choice for your work setup plus AI tool subscriptions e.g., Cursor, Claude Code, Gemini.
• Flexible work environment: ergonomic, centrally located offices and remote working options.
• One of the most challenging and rewarding roles: shaping the future of a growing startup from the ground up.
• A competitive compensation package: a strong salary combined with stock options, giving you ownership in the company.
• A supportive, inclusive culture with a strong focus on work-life balance.

Next Steps

The position will be filled as soon as we find the right person, so make sure to apply as soon as you realize you really, really want to join us!

The compensation will be a negotiable combination of monthly pay and company options. The latter makes it exceptionally easy to be excited about our company growing and doing well, as you'll own a piece of the pie.