The SSS - THE SUN STRATEGIC SOLUTIONS Inc.

JP / EN

RECRUIT

The members of THE SSS are a group of talents who always ask themselves, "What would I do?" and act on their own initiative rather than waiting to be told.
To understand what our clients truly need and deliver new experiences to their customers, we study the latest technology every day and aim for peak performance together with great colleagues.

Our job openings are also available on the following sites (Japanese)

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OFFERING

We support our clients' digital transformation.
Drawing on our expertise in the latest digital technologies and marketing, including AI, IoT, blockchain,
marketing automation, and native apps, we help our clients grow their businesses.

MARKETING & CREATIVE

MARKETING & CREATIVE

Web, Mobile App development

SEO, Performance marketing

UI, UX Design

TECHNOLOGY

TECHNOLOGY

System development

Interactive device & Software development

AI, IoT, Blockchain system development

CONSULTING

CONSULTING

Digital transformation support

Marketing outsourcing

Global business support

OTHERS

Global business support

Venture incubation

THE SSS DATA

THE SSS in numbers At THE SSS we are committed to building a workplace that is easy to work in. By continually improving with input from our employees, we aim for an environment that fits the times. * As of May 2025

DATA01Gender ratio

Male and female icons

Men6 : 4Women

DATA02Paid leave usage

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Average54.4%

DATA03Average overtime

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21h04min

* Average monthly overtime per employee

DATA04Parents

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Parents44%

DATA05Average age

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Average age33.4

DATA06Average tenure

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4yrs3mos

BENEFIT SYSTEM

  • MVP program

    MVP Program

    We select and celebrate an MVP employee from a variety of angles, such as "took on a new challenge" or "delivered results." Award winners receive a special gift.

  • Free drinks

    Free Drinks

    The office is always stocked with drinks members can enjoy freely, including coffee and lattes from a professional espresso machine, tea, and juice.

  • PC and smartphone provided

    PC / Smartphone Provided

    Every new member receives their own PC, with a choice of Mac or Windows. Smartphones are provided according to the needs of the role.

  • Flexible working

    Flexible Working

    We encourage remote work and offer flextime. It is a stress-free, flexible environment where everyone can work in the style that suits them.

  • Referral program

    Referral Program

    Refer someone you would like to work with. If they join us full-time after the interview process, you receive a referral bonus six months after they start.

  • No dress code

    No Dress Code

    Work in the clothes, hairstyle, and hair color you like. It is an environment where you can enjoy and value what makes you, you.

  • Vaccinations

    Vaccinations

    Optional vaccinations are available, with the cost covered by the company.

  • Challenge allowance

    Challenge Allowance

    To support employees' own initiatives and strengthen both individual skills and the company, we cover the cost of training courses and certification exams employees choose to take.

  • Remote work allowance

    Remote Work Allowance

    We provide a remote work allowance to help members set up a comfortable and productive working environment at home.

  • Lunch and dinner allowance

    Lunch / Dinner Allowance

    To build closer relationships between members and keep work running smoothly, the company subsidizes lunches and dinners up to a set monthly amount.

  • Mentor program

    Mentor Program

    For the first three months, a senior colleague stays in close contact and supports your work so you can settle in easily, even when working remotely. Expenses such as lunches, coffee, and dinners are covered by the company as mentoring costs.

THE SSS INTERVIEW

Ideas born from hybrid experience, such as engineer × sales, and a commitment to facing clients head-on.
Built up over time, these are what earn SSS its trust.
Meet the people who make "Good people, Good business" a reality and discover what makes working at SSS rewarding.

THE SSS TOUR

A look at the atmosphere inside THE SSS and how our members work.
We hope it gives you a sense of the environment and working style behind our day-to-day work.

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新しいAI技術はまず検証

AIにデザインツールを操作させ、似顔絵を描かせる実証実験を実施。再現性に課題はあるものの、操作できることを確認しました。新しい技術はまず試して共有するのがSSS流です。

新メンバー歓迎会

新メンバーのリクエストに応えてシュラスコのお店へ！お酒を片手に会話も弾み、業務中には見えない一面にも触れられ、また一段とチームの絆が深まりました。

息抜きの時間も大切に

オフィスの近くにある洋菓子店の焼き菓子で糖分補給タイム！窓の外に広がる景色を眺めるとリフレッシュして、気持ちよく仕事に取り組めそうです。

クリエイティブチームでランチ会

チームメンバーでオフィス周辺のランチへ。ランチ手当やメンター手当を活用して気軽に集まれるのがSSSの魅力のひとつ。美味しい食事を楽しみながら、仕事や日常の話題で盛り上がりました！

安心のOJT制度

現場で実践しながら学べるOJT制度を導入しています。トレーナー、メンターとの距離が近いので分からないことはすぐ質問でき、新メンバーも安心してスタートできます。

初夏の風を感じてリフレッシュ

ランニング好きのメンバーで東京タワー周辺をランニング！爽やかな青空の下、気持ちよく汗を流してリフレッシュできました。

お土産でにぎやかなオフィス

長期休み明けのオフィスには各地のお土産がずらり！お菓子を囲みながら、休日の思い出話で会話も弾みました。

MVP表彰

当社には、全社員の投票でメンバーの活躍を称える「MVP制度」があります。個人の成果や周囲への貢献を形にする制度です！次はあなたの番かも...？

名刺も新しくなりました！

メンバー一人ひとりが自身の個性を発揮できるよう、5種類のデザインから選択できます。名刺を交換させていただいた際は、ぜひ裏面のデザインにもご注目ください。

企業ロゴを刷新

「信頼性」の濃紺、「革新性」のマゼンタ、「創造性」のターコイズブルーのカラーを採用。新しいシンボルと共に、2026年度も挑戦を続けていきます！詳しくはこちらをご覧ください。

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JOBS

  • GEN AI ENGINEER / CONSULTANTGenerative AI Engineer / Consultant

    Requirements
    No educational requirements
    Required skills
    • Hands-on experience with generative AI (e.g., ChatGPT, Claude, Gemini)
    • Knowledge of and practical experience in prompt engineering
    • Experience improving and standardizing business processes with AI
    • Experience with multimodal AI (e.g., image generation, speech recognition)
    • Experience evaluating and improving AI models
    Preferred skills
    • Experience reducing implementation effort or improving quality with AI code editors
    • Experience building internal knowledge search systems with RAG architectures and supporting business improvement
    • Development experience in programming languages such as Python or TypeScript
    • Experience integrating and organizing data across multiple services
    Employment type
    Contract employee. Probation period: 3 months, with the possibility of conversion to permanent employment thereafter
    Working hours
    Flextime: 8 hours (1-hour break), core time 11:30-16:30
    Holidays and leave
    Saturdays, Sundays, and public holidays; condolence/congratulatory leave; summer holidays; year-end and New Year holidays (124 days off per year)
    Salary
    Annual salary of JPY 6,000,000 or more (estimated monthly salary of JPY 500,000 or more), determined based on experience and ability.
    Location
    IsaI AkasakA 1812, 5-2-33 Akasaka, Minato-ku, Tokyo 107-0052, Japan
    (7 minutes on foot from Akasaka Station)
    Benefits
    Employment insurance, workers' accident compensation insurance, employees' pension, health insurance, commuting allowance, no dress code
    Responsibilities

    ■ Requirements definition, design, development, and validation of generative AI solutions

    • Analyze clients' business workflows and data structures and design systems that incorporate LLMs and RAG.
    • Drive prompt engineering, model integration API implementation, and infrastructure construction using Python, TypeScript, and other languages.
    • In the PoC phase, compare and evaluate outputs from multiple models and optimize them to deliver an MVP (Minimum Viable Product) in a short time frame.

    ■ Management and consulting for generative AI projects

    • Manage project progress and coordinate stakeholders, and build mechanisms to quantitatively evaluate AI model performance.
    • Support governance design within client organizations (security requirements, data privacy compliance, etc.).
    • Act as a catalyst for new business development and cross-departmental projects, providing end-to-end support from business planning to technical implementation.

    ■ Recommendations and results reporting to clients

    • Visualize AI model accuracy, ROI, and business improvement impact, and provide regular reports and recommendations.
    • Share knowledge after project completion and support clients' continuous improvement to build long-term relationships of trust.
    ENTRY

  • SYSTEM CONSULTANTSystem Consultant

    Requirements
    No educational requirements
    Required skills
    Experience in project management and client-facing work (client negotiation).
    We welcome people who can put their skills to use while proposing one step ahead and being attentive to others.
    ★ Self-starters who think and act on their own are very welcome! We hire for potential!
    Preferred skills
    • Experience in system consulting
    • Experience in system development (as PM, director, or designer)
    • Experience implementing SaaS systems (ERP / SFA / CRM, etc.)
    • Experience as a graphic or UI/UX designer
    • Knowledge of web advertising and advertising in general
    Employment type
    Contract employee. Probation period: 3 months, with the possibility of conversion to permanent employment thereafter
    Working hours
    Flextime: 8 hours (1-hour break), core time 11:30-16:30
    Holidays and leave
    Saturdays, Sundays, and public holidays; condolence/congratulatory leave; summer holidays; year-end and New Year holidays (124 days off per year)
    Salary
    Annual salary of JPY 4,200,000 or more (estimated monthly salary of JPY 350,000 or more), determined based on experience and ability.
    Location
    IsaI AkasakA 1812, 5-2-33 Akasaka, Minato-ku, Tokyo 107-0052, Japan
    (7 minutes on foot from Akasaka Station)
    Benefits
    Employment insurance, workers' accident compensation insurance, employees' pension, health insurance, commuting allowance, no dress code
    Responsibilities
    You will be responsible for developing new systems that leverage generative AI and for consulting on SaaS system implementation to realize our clients' DX strategies.
    Using cutting-edge technologies such as AI and generative AI, we support our clients' DX across every phase from strategy planning to operations, and have earned strong trust from major companies and organizations.

    ■ Specifically
    • New system development
      Develop systems that leverage generative AI using an agile approach. After launch, we stay close to the client with full support, including sales support for expansion.
    • SaaS system implementation consulting
      To realize the client's DX strategy, we go beyond system implementation to business process reform. We work with the client to map out current processes and issues so that both management and the front line benefit.
    ENTRY

  • WEB MARKETERWeb Marketer

    Requirements
    No educational requirements
    Required skills
    Documentation skills (Microsoft Office: Excel, Word, PowerPoint) Practical experience in web direction
    Preferred skills
    Experience in project management or as a team leader Management experience at a full-service advertising agency or production company Experience in SEO operations and content marketing
    Employment type
    Contract employee. Probation period: 3 months, with the possibility of conversion to permanent employment thereafter
    Working hours
    Flextime: 8 hours (1-hour break), core time 11:30-16:30
    Holidays and leave
    Saturdays, Sundays, and public holidays; condolence/congratulatory leave; summer holidays; year-end and New Year holidays (124 days off per year)
    Salary
    Annual salary of JPY 4,200,000 or more (estimated monthly salary of JPY 350,000 or more), determined based on experience and ability.
    Location
    IsaI AkasakA 1812, 5-2-33 Akasaka, Minato-ku, Tokyo 107-0052, Japan
    (7 minutes on foot from Akasaka Station)
    Benefits
    Employment insurance, workers' accident compensation insurance, employees' pension, health insurance, commuting allowance, no dress code
    Responsibilities
    You will manage web advertising, the core of our marketing operations.
    [Main responsibilities] Managing listing ads on Yahoo! and Google; managing ads on Instagram, LINE, Facebook, Twitter, and other platforms; analyzing ad performance; preparing reports; and proposing improvements
    ENTRY

  • UI/UX DESIGNERUI/UX Designer

    Requirements
    No educational requirements
    Required skills
    • 3+ years of practical experience in web design
    • Proficiency with design tools such as Figma and Adobe products
    • Ability to propose designs through discussion with clients and internal members
    Preferred skills
    • Experience with other web design tools
    • Experience using generative AI tools for creative work
    • Experience building design systems, or practical design experience using a design system
    • Experience in direction work
    Employment type
    Contract employee. Probation period: 3 months, with the possibility of conversion to permanent employment thereafter
    Working hours
    Flextime: 8 hours (1-hour break), core time 11:30-16:30
    Holidays and leave
    Saturdays, Sundays, and public holidays; condolence/congratulatory leave; summer holidays; year-end and New Year holidays (124 days off per year)
    Salary
    Annual salary of JPY 4,200,000 or more (estimated monthly salary of JPY 350,000 or more), determined based on experience and ability.
    Location
    IsaI AkasakA 1812, 5-2-33 Akasaka, Minato-ku, Tokyo 107-0052, Japan
    (7 minutes on foot from Akasaka Station)
    Benefits
    Employment insurance, workers' accident compensation insurance, employees' pension, health insurance, commuting allowance, no dress code
    Responsibilities
    As a partner supporting our clients' DX, we design the UI/UX of a wide range of digital content, including web services, applications, e-commerce sites, landing pages, and corporate websites.
    This position plays a key role in maximizing our clients' business value by balancing user-centered flow and customer experience design with visual design expression.

    ■ Specifically
    • Website design (primarily UI) using Figma
    • Support for building design systems
    • Design proposals through discussion with clients and internal members
    • UI design and guideline development for service sites, landing pages, and more
    • Visualizing proposal documents, supporting print design, and more

    In our small, elite team you will have significant discretion and work close to management, so you can see your proposals take shape. Study sessions with outside instructors and seminar attendance are also available. We welcome people who are eager to grow.

  • UI/UX ENGINEERUI/UX Engineer

    Requirements
    No educational requirements
    Required skills
    Experience as a front-end engineer; website development with WordPress
    Preferred skills
    Implementation experience with front-end frameworks such as React (Next.js); experience building medium- to large-scale sites; implementation experience in PHP environments such as WordPress and Laravel; etc.
    Employment type
    Contract employee. Probation period: 3 months, with the possibility of conversion to permanent employment thereafter
    Working hours
    Flextime: 8 hours (1-hour break), core time 11:30-16:30
    Holidays and leave
    Saturdays, Sundays, and public holidays; condolence/congratulatory leave; summer holidays; year-end and New Year holidays (124 days off per year)
    Salary
    Annual salary of JPY 4,200,000 or more (estimated monthly salary of JPY 350,000 or more), determined based on experience and ability.
    Location
    IsaI AkasakA 1812, 5-2-33 Akasaka, Minato-ku, Tokyo 107-0052, Japan
    (7 minutes on foot from Akasaka Station)
    Benefits
    Employment insurance, workers' accident compensation insurance, employees' pension, health insurance, commuting allowance, no dress code
    Responsibilities
    Markup and UI implementation to realize designs that take usability into account.
    [Coding skills] Front-end coding with React (Next.js), Vue.js (Nuxt.js), TypeScript, and more
    Website development with WordPress; basic knowledge of PHP
    ENTRY

CONTACT

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