Senior Product Designer, Prisma.fi

📍 Job Overview

Job Title: Senior Product Designer, Prisma.fi
Company: S-ryhmä / S Group
Location: Helsinki, Finland
Job Type: Full-time
Category: Product Design / User Experience
Date Posted: January 21, 2026
Experience Level: 5-10 Years
Remote Status: Hybrid

🚀 Role Summary

• Drive the continuous improvement of the Prisma.fi e-commerce customer experience, leveraging data-driven insights and user research.
• Develop comprehensive design solutions from concept and wireframing to high-fidelity prototypes and production-ready UI.
• Champion a culture of experimentation, including A/B testing and user testing, to generate new knowledge and optimize outcomes.
• Collaborate within a multidisciplinary team of technology, design, and business professionals to deliver scalable and impactful e-commerce solutions.
• Contribute to and utilize the S Design System, enhancing design practices and fostering a data-informed decision-making environment.

📝 Enhancement Note: The role of Senior Product Designer at Prisma.fi is positioned as a strategic contributor, emphasizing ownership, data-driven decision-making, and a direct impact on a large-scale e-commerce platform. The role requires a blend of hands-on design skills and a strategic understanding of business objectives and customer needs.

📈 Primary Responsibilities

• Lead the conceptualization, design, and implementation of user-centric features and improvements for the Prisma.fi e-commerce platform.
• Translate complex customer and business requirements into tangible, high-quality online shopping solutions through wireframes, prototypes, and final UI designs.
• Take ownership of specific product areas, ensuring design solutions align with product goals and deliver measurable business results.
• Design and execute experiments (e.g., A/B tests, user testing) to gather insights and inform iterative development processes.
• Actively participate in the discovery process, identifying opportunities for innovation and user experience enhancement.
• Collaborate closely with product managers, developers, and other stakeholders to ensure seamless execution of design strategies.
• Contribute to the evolution and application of the S Design System, promoting consistency and efficiency across the platform.
• Champion accessibility standards in all design outputs, ensuring inclusive user experiences.
• Mentor and support other designers within the team and the broader S Design community.

📝 Enhancement Note: The emphasis on "ownership of your area" and "actively influencing the direction and implementation of the service" suggests a role with significant autonomy and strategic input, typical of a senior-level position. The responsibility for "designing and implementing experiments" and "systematically incorporating learnings into iterative development" highlights a strong focus on a data-informed and agile design process.

🎓 Skills & Qualifications

Education: Relevant educational background in Design, Human-Computer Interaction, or a related field, or equivalent practical experience.
Experience: Strong senior-level experience in digital service design, with a proven track record in developing e-commerce customer experiences.

Required Skills:

• Expertise in conceptualization, UX, and UI design, including creating production-ready visual designs.
• Proficiency in user research, data analysis, and translating insights into actionable design solutions.
• Hands-on experience with prototyping, wireframing, and user testing methodologies.
• Demonstrated ability to design and execute experiments, such as A/B tests, and utilize their results.
• Experience with design systems, including their use and contribution to their development.
• Strong understanding and application of accessibility principles in design.
• Excellent communication and interpersonal skills, with the ability to articulate design rationale to diverse stakeholders.
• Fluency in both Finnish and English languages.

Preferred Skills:

• Experience in mentoring junior designers and fostering a collaborative design environment.
• Familiarity with digital commerce trends and best practices.
• Experience in developing and improving design practices and fostering an experimentation culture.

📝 Enhancement Note: The requirement for senior-level experience, coupled with specific skills like "ownership of your area," "influencing the direction," and "mentoring," indicates a need for a seasoned professional who can operate independently and contribute strategically beyond just execution.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase a minimum of 3-5 detailed case studies demonstrating your end-to-end product design process for digital services, ideally with a focus on e-commerce.
• Clearly articulate the problem statement, your role, the design process, key decisions, and the impact of your solutions.
• Highlight your experience with user research, data analysis, experimentation (A/B testing, user testing), and how these informed your design outcomes.
• Include examples of wireframes, prototypes, and final UI designs, illustrating your design thinking and execution capabilities.
• Demonstrate your experience with design systems, including how you've utilized or contributed to them.

Process Documentation:

• Be prepared to discuss your approach to continuous discovery and hypothesis-driven experimentation within an iterative development framework.
• Detail your methods for gathering and synthesizing customer and business data to drive design decisions.
• Explain how you ensure scalability and measurable impact for your design solutions.
• Provide examples of how you have improved design practices or fostered an experimentation culture within a team.

📝 Enhancement Note: The job description explicitly requests a portfolio and emphasizes the ability to "design and implement experiments" and "systematically incorporate learnings into iterative development." This suggests that the review process will heavily scrutinize the candidate's practical application of data-informed design and experimentation.

💵 Compensation & Benefits

Salary Range: [The job description does not specify a salary range. Based on industry standards for a Senior Product Designer role with 5-10 years of experience in Helsinki, Finland, a competitive annual salary range would typically be between €60,000 to €85,000. This estimate considers the cost of living in Helsinki and the specialized skills required for e-commerce product design.]

Benefits:

• Performance-based bonuses (tulospalkkaus) for good and results-oriented work.
• Extensive employee benefits, including discounts on food, restaurants, hotels, electronics, cosmetics, home appliances, car washes, and more.
• Opportunities for long and varied career paths within S-ryhmä, one of Finland's largest employers.
• Contribution to a safe, stable, and domestic company group.
• Emphasis on meaningful work with significant societal impact.
• A positive and supportive work environment, with 86% of employees recommending S-ryhmä as an employer.

Working Hours: Standard 40-hour work week, with flexibility to work remotely for a portion of the week when job duties allow.

📝 Enhancement Note: The explicit mention of "tulospalkkaus" (performance-based bonus) and the detailed list of employee discounts are significant benefits. The salary range provided is an estimate based on typical market rates for senior-level design roles in Helsinki and should be confirmed with the employer.

🎯 Team & Company Context

🏢 Company Culture

Industry: Retail / E-commerce / Consumer Goods. S-ryhmä is a major Finnish cooperative group operating in retail and banking. Prisma.fi is its prominent online retail platform.
Company Size: Large Enterprise. S-ryhmä is the largest private employer in Finland, with approximately 2300 specialists at SOK alone, and a vast network of cooperatives. This implies a structured environment with opportunities for broad impact and career development.
Founded: SOK (Suomen Osuuskauppojen Keskuskunta) is the central cooperative of the S Group, with a long history rooted in Finnish cooperative principles. Its values emphasize customer focus, continuous innovation, responsibility, and results.

Team Structure:

• The Prisma.fi team is described as international and multidisciplinary, comprising experienced professionals in technology, design, and business.
• Collaboration is central, with about 3 days a week expected in the Helsinki office, Ässäkeskus, and flexible remote work options.
• The role is part of a design community within S-ryhmä, leveraging and contributing to the S Design System.

Methodology:

• Data-driven decision-making and continuous learning are core to the team's approach.
• A strong emphasis on discovery work and hypothesis-driven experimentation (A/B tests, user testing).
• Iterative development processes are standard.
• Ownership, clear direction, and trust are highlighted as key working principles.

Company Website: https://www.s-ryhma.fi/, https://www.prisma.fi/

📝 Enhancement Note: The company's cooperative roots and strong Finnish presence provide a unique cultural context. The emphasis on "ownership," "clear direction," and "trust" within an international and multidisciplinary team suggests a dynamic yet structured work environment focused on achieving tangible results for a large customer base.

📈 Career & Growth Analysis

Operations Career Level: Senior Product Designer. This role is positioned at a senior level, indicating a requirement for significant experience, autonomy, and the ability to mentor others. The responsibilities extend beyond execution to strategic influence and process improvement.

Reporting Structure: The candidate will work within a multidisciplinary team and report to a manager within the Prisma.fi product development unit. They will also be part of the broader S-ryhmä design community, fostering cross-functional collaboration and knowledge sharing.

Operations Impact: The role has a direct and visible impact on the daily lives of millions of people by shaping the online shopping experience for everyday necessities. Success is measured by tangible outcomes that improve customer experience and achieve business objectives for Prisma.fi.

Growth Opportunities:

• Develop leadership skills through mentoring junior designers and contributing to design system development.
• Deepen expertise in e-commerce, data-driven design, and experimentation within a large-scale retail environment.
• Potential for career advancement within S-ryhmä, which offers diverse opportunities across its many business areas and functions.
• Contribute to shaping the strategic direction of a growing digital service.
• Participate in the broader S Design community, offering continuous learning and networking opportunities.

📝 Enhancement Note: The "Senior" title, coupled with mentoring responsibilities and the mention of "long, often winding, but always opportunity-filled" career paths within S-ryhmä, strongly suggests significant potential for professional growth and development within the organization.

🌐 Work Environment

Office Type: Hybrid work model. Employees are expected to work from the Helsinki office, Ässäkeskus, approximately 3 days per week, with the flexibility to work remotely for the remainder of the week. This promotes collaboration while offering flexibility.
Office Location(s): Helsinki, Finland (specifically Ässäkeskus).

Workspace Context:

• The Ässäkeskus office is designed to foster collaboration and interaction among colleagues.
• Access to modern tools and technology is implied, supporting digital product development.
• Opportunities for frequent interaction with a multidisciplinary team of technology, design, and business professionals.

Work Schedule: Standard working hours (implied 40 hours per week), with a flexible approach to remote work, allowing for better work-life integration and efficient management of design tasks.

📝 Enhancement Note: The "Hybrid" work arrangement with a specific office presence (3 days/week) is a key detail for candidates looking for structured flexibility. The name "Ässäkeskus" suggests a modern and central hub for S Group's operations.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Application: Submit CV and portfolio by February 4, 2026.
• Screening: Applications are reviewed actively during the application period.
• First Interview: Typically with a recruiter to assess initial fit and discuss role expectations.
• Subsequent Interviews: Likely with the hiring manager and potential future colleagues to evaluate skills, experience, and team fit.
• Final Stage: May involve a suitability assessment (soveltuvuusarviointi).

Portfolio Review Tips:

• Structure: Organize your portfolio with clear case studies that detail the problem, your role, process, solutions, and quantifiable outcomes.
• Data & Experimentation: Explicitly showcase how you used data, customer research, and experimentation (A/B tests, user testing) to inform your design decisions and measure impact.
• Ownership & Strategy: Highlight instances where you took ownership of a significant part of a project and influenced its strategic direction.
• Design Systems: Include examples of your work with design systems, demonstrating your understanding of scalability and consistency.
• Storytelling: Craft a narrative for each case study that effectively communicates your problem-solving approach and the value you delivered.

Challenge Preparation:

• Be prepared for discussions about your approach to data-driven design, continuous discovery, and iterative development.
• Expect questions related to your experience with A/B testing, user research, and how you translate findings into design actions.
• Practice articulating your design rationale clearly and concisely, particularly how your solutions align with business objectives and user needs.
• Consider how you would approach mentoring and contributing to a design system.

📝 Enhancement Note: The application process mentions an active review during the application period and a final "suitability assessment." This indicates a thorough and potentially multi-stage evaluation process. The emphasis on portfolio content for data, experimentation, and ownership is crucial for candidates to prepare.

🛠 Tools & Technology Stack

Primary Tools:

• Design & Prototyping: Tools such as Figma, Sketch, Adobe Creative Suite (Illustrator, Photoshop), InVision, or similar industry-standard software for wireframing, UI design, and prototyping.
• Design Systems: Experience with or contribution to design systems (specifically S Design System mentioned).
• Collaboration Tools: Jira, Confluence, Slack, or similar for team communication and project management.

Analytics & Reporting:

• Web Analytics: Familiarity with tools like Google Analytics, Adobe Analytics, or similar platforms to understand user behavior and track performance metrics.
• A/B Testing Platforms: Experience with tools used for conducting and analyzing A/B tests (e.g., Optimizely, VWO, or built-in platform tools).
• Data Visualization: Ability to interpret data presented in dashboards or reports.

CRM & Automation:

• While not explicitly mentioned, familiarity with CRM systems (e.g., Salesforce) and marketing automation platforms can be beneficial for understanding the broader customer journey and sales funnel, especially in an e-commerce context.
• Understanding of e-commerce platforms and their underlying technologies is also valuable.

📝 Enhancement Note: The explicit mention of the "S Design System" is a key piece of information. While specific design tools aren't listed, the responsibilities imply proficiency in standard industry-leading design and prototyping software. Familiarity with web analytics and A/B testing tools is vital given the role's emphasis on data and experimentation.

👥 Team Culture & Values

Operations Values:

• Customer Focus: A primary value, driving the design of services that meet customer needs effectively.
• Continuous Innovation: A commitment to constantly improving and evolving the digital offering.
• Responsibility: Taking ownership of work and its impact on customers, the environment, and the business.
• Results-Oriented: A focus on delivering measurable business outcomes and achieving targets.
• Data-Driven: Decisions are informed by data, research, and experimentation.
• Collaboration & Trust: Working effectively in multidisciplinary teams with mutual trust and clear direction.

Collaboration Style:

• Highly collaborative within a multidisciplinary team (technology, design, business).
• Cross-functional integration is essential for end-to-end service development.
• Open communication and sharing of knowledge within the design community and broader S-ryhmä.
• A culture that encourages feedback exchange and continuous improvement of processes.

📝 Enhancement Note: The S-ryhmä values (customer first, renewing, responsibility, results) are foundational. The emphasis on "ownership," "clear direction," and "trust" in the team context further defines the collaborative environment as one that empowers individuals while ensuring alignment towards common goals.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing User Needs and Business Goals: Effectively reconciling diverse customer needs with ambitious business objectives for a large e-commerce platform.
• Managing Large-Scale Impact: Designing for millions of users requires a deep understanding of scalability, performance, and accessibility across a broad audience.
• Navigating a Large Organization: Working within a large, established organization like S-ryhmä can present complexities in process, stakeholder management, and decision-making.
• Staying Ahead of E-commerce Trends: Continuously adapting to the rapidly evolving digital commerce landscape and anticipating future customer expectations.

Learning & Development Opportunities:

• Skill Advancement: Deepen expertise in advanced UX/UI design, e-commerce strategy, and data-driven experimentation techniques.
• Industry Exposure: Gain insights into the operations of one of Finland's largest retail groups.
• Mentorship: Opportunity to mentor junior designers and develop leadership capabilities.
• Design System Contribution: Play a key role in evolving and maintaining the S Design System.
• Cross-Functional Learning: Collaborate with experts across technology, business, and marketing to broaden understanding of the entire product lifecycle.

📝 Enhancement Note: The challenges are framed around the scale of the business and the dynamic nature of e-commerce. Growth opportunities are tied to leadership, specialized skill development, and contributing to a significant organizational asset (the design system).

💡 Interview Preparation

Strategy Questions:

• "Describe a time you took ownership of a significant part of a digital product and influenced its direction. What was the outcome?" (Focus on leadership, strategic thinking, and impact).
• "How do you balance conflicting user needs or business priorities when designing a feature?" (Prepare examples showing negotiation, prioritization, and user-centric solutions).
• "Walk us through a complex e-commerce design challenge you solved. What data and research informed your decisions, and how did you measure success?" (Emphasize process, data, experimentation, and measurable results).

Company & Culture Questions:

• "What interests you about Prisma.fi and the S-ryhmä?" (Demonstrate research into the company's mission, values, and market position).
• "How would you contribute to our culture of experimentation and data-driven design?" (Align your past experiences with the role's requirements).
• "Describe your experience working in a multidisciplinary team. How do you ensure effective collaboration?" (Highlight communication, stakeholder management, and teamwork skills).

Portfolio Presentation Strategy:

• Conciseness: For each case study, focus on the "why," "what," and "so what." Clearly explain the problem, your role, your process, and the impact.
• Data & Metrics: Quantify your achievements whenever possible. Show how data and experimentation led to specific improvements in user experience or business metrics.
• Process Clarity: Be ready to articulate your design process, including how you handle ambiguity, user research, and iterative refinement.
• Ownership Narrative: Clearly define your contributions and highlight instances where you took initiative or led aspects of the design work.
• Visuals: Use high-quality visuals of your work, but ensure they support your narrative rather than replace it.

📝 Enhancement Note: The interview preparation advice focuses on demonstrating ownership, data proficiency, and the ability to articulate impact, which are key themes throughout the job description. Preparing specific case studies that highlight these aspects will be critical.

📌 Application Steps

To apply for this Senior Product Designer position:

• Submit your CV and portfolio through the provided application link by February 4, 2026.
• Portfolio Customization: Ensure your portfolio prominently features case studies showcasing your expertise in e-commerce design, data-informed decision-making, and experimentation. Tailor your case study selection to highlight projects where you demonstrated ownership and strategic influence.
• Resume Optimization: Update your resume to clearly articulate your senior-level experience, focusing on achievements and responsibilities related to product design, UX/UI, data analysis, and e-commerce. Use keywords from the job description to align with ATS screening.
• Interview Preparation: Practice presenting your portfolio, focusing on telling compelling stories about your design process, challenges, and the measurable impact of your work. Prepare to discuss your approach to collaboration, data utilization, and mentoring.
• Company Research: Thoroughly research S-ryhmä, Prisma.fi, and the Finnish cooperative model. Understand their market position, values, and strategic goals to better articulate your fit and interest during interviews.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.

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