Back-office DX and hybrid work insights for general affairs, HR and IT teams
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September 28, 2026 
3 min readHello. I'm Toshiki, researching hybrid work. Starting this time, we have established a new category related to hybrid work in Work SaaS Media, We…
September 25, 2026 2 min readHello, I'm Toshiki, and I'm promoting AI utilization at a company. I feel that many companies are struggling with AI utilization in their businesses.…
September 17, 2026 5 min readIntroduction Hello, my name is Hiroaki Sekine, and I have been working as an intern at Colorkrew since July. I am currently a first-year master's…
September 3, 2026 5 min readSelf-Introduction: Nice to meet you. I'm Mochizuki from Colorkrew. I'm currently in my second year as a working adult, and after changing jobs once, I work as a cloud engineer at Colorkrew. I didn't major in information technology at university, but through job hunting, I wanted to work as an IT engineer and entered the IT industry. …
August 20, 2026 6 min readI’m Atharva, a sophomore studying Media Sciences and Engineering at the University of Tsukuba under a full MEXT scholarship. I joined Colorkrew as a SaaS Software Engineering Intern in February 2026.…
August 6, 2026 4 min readIntroduction: Hello. I'm Yano, who joined as an infrastructure engineer as a new graduate in April. Time flies—it's been three months since I joined the company. Although I only started three months after joining, I started interning in November 2024, so it has been 1 year and 8 months since I started working at Colorkrew. Even I was surprised at how long it was. This time, I plan to focus on things that changed during my internship and after joining. …
July 30, 2026 5 min readIntroduction: Nice to meet you. I'm Yawata, a cloud security engineer at Colorkrew. I joined mid-career in April 2026 and am currently involved in building and operating customer cloud environments as well as security-related tasks. I have been involved in operating cloud infrastructure and system development centered on AWS. In my previous job, I was responsible for cloud operations, improvements, and business automation for our company's services. …
July 2, 2026 4 min readFirst of all, hello! I'm Dongyun, who works in sales at Colorkrew. In this blog, I would like to share my own experiences with those who are about to start job hunting. This is just my personal perspective, but I hope it can be of some help. Background of trying to find a job in Japan...
September 17, 2026 5 min readIntroduction Hello, my name is Hiroaki Sekine, and I have been working as an intern at Colorkrew since July. I am currently a first-year master's…
August 6, 2026 4 min readIntroduction: Hello. I'm Yano, who joined as an infrastructure engineer as a new graduate in April. Time flies—it's been three months since I joined the company. Although I only started three months after joining, I started interning in November 2024, so it has been 1 year and 8 months since I started working at Colorkrew. Even I was surprised at how long it was. This time, I plan to focus on things that changed during my internship and after joining. …
July 30, 2026 5 min readIntroduction: Nice to meet you. I'm Yawata, a cloud security engineer at Colorkrew. I joined mid-career in April 2026 and am currently involved in building and operating customer cloud environments as well as security-related tasks. I have been involved in operating cloud infrastructure and system development centered on AWS. In my previous job, I was responsible for cloud operations, improvements, and business automation for our company's services. …
May 26, 2026 3 min readColorkrew hires year-round, so the start dates vary, but basically, we hold the entrance ceremony around April and autumn. In this blog, we will look…
May 1, 2026 5 min readI’ve been a junior developer at Colorkrew for over a year now. For a long time, I resisted integrating AI into my workflow, aside from the occasional browser search. My reasoning was simple: AI felt 'dumb.' It made bizarre mistakes and felt intrusive. If you’ve ever enabled Copilot only to have its tab-completions derail your train of thought, you know what I mean. I valued my own intuition over a tool that seemed to prioritize saving keystrokes over actual logic.
March 12, 2026 4 min readMy journey into software engineering didn’t follow a perfectly straight line—but looking back, it feels like it led exactly where it needed to. I studied Computer Science at university in Malaysia.…
February 26, 2026 3 min readWhy AI Must Become a Core Engineering Capability We believe that AI is no longer just a productivity tool, but a fundamental component of modern software development.For an engineering organization,…
February 19, 2026 5 min readNice to meet you! This is Sato, an infrastructure engineer at Colorkrew. I joined the company mid-career in July 2025 and am currently working on infrastructure and resales in the contract business area. In this article, I would like to introduce how I chose Colorkrew as my new job, and the gaps and charms I felt while working. (The second glasses from the left are me)...
January 30, 2026 5 min readHi, I’m Hantus, a product designer at Colorkrew. Colorkrew is my first company after graduating, and this is also my first experience working in a professional IT environment. I joined with limited...
January 16, 2026 3 min readSix months ago, I joined Colorkrew as a software engineer, and it’s amazing how quickly that half-year has flown by. I hoped to find a place where I could grow, contribute meaningfully, and work with...
December 24, 2025 5 min readNice to meet you! I'm Yano, a 26-year-old graduate who works as an intern at Colorkrew! Before I knew it, it had been more than a year since I started interning... This time, I would like to introduce what I experienced and felt through my internship. Although I started job hunting in 2024, I didn't have a company I wanted to go to, so I was researching companies from above on a certain job hunting site. That's when Colorkrew caught my eye. ...
January 6, 2026 3 min readHappy New Year everyone! Last year was also a really turbulent year. In the world, there is no end to conflict, inflation continues, and AI-driven transformation is approaching us at a speed beyond our imagination. Looking back, 2025 was not a year of "completely new things" happening, but rather a year in which the evolution of AI, the heating of the global economy, and the continuation of conflicts that have continued over the past few years have accelerated at once. ...
January 6, 2025 Happy New Year everyone! Last year was a year in which the world changed drastically. Although it is turbulent, I feel that the changes that have occurred in the world in the wake of Corona have accelerated even more, rather than completely new changes occurring. ...
January 30, 2024 It has been four years since I started working on the Brazilian market. During that time, I was on a business trip to Brazil, so I thought I would be the fifth person, but about two weeks ago, I heard from Daniel in Brazil that Floris is from the UK. **Brazil Business Trip Vol.1~4 is here. ** - I went to Brazil. ~Overseas Business Trip Vol.1~ - First Long-term Stay Abroad -Overseas Business Trip Vol.2- - Business Trip...
January 9, 2024 4 min readHappy New Year, everyone! When I looked it up, I found out that I was writing about a movie Slam Dunk. I feel the speed of time passing. (New Year's blog for the beginning of 2023: Color your work with Excitement!) I had a feeling that last year would be quite a challenging year, and I wrote a blog like that, and it was actually a difficult year. ...
March 27, 2023 2 min readThose who want to work for a world-changing startup from Japan? Starting your career as a new graduate is one of the most important life events for many people. Over the past 30 years, countries...
March 27, 2023 2 min readEmployment as a new graduate. For many people, it is one of the most important life events in their lives. Over the past 30 years, countries around the world have accelerated their economic ties and globalized. On the other hand, politically, the conflict between liberal capitalism, the former communist countries, and the expansion of the presence of the Global South have changed from the relatively stable international situation in the second half of the 20th century to the era of the VUCA, which is unstable and has no future. ...
December 7, 2022 5 min read> If you are looking forward to work, life is paradise. If it's suffering, it's hell (from Wikipedia) It seems to be the words of Russian writer Maxim Gorky. I will not mention his merits and demerits here, but Karakul feels a high sense of sympathy for these words, which he shouts that whether or not he can enjoy his work is directly related to the quality of his life. ...
November 16, 2022 Previously, I wrote about the bitter and painful feedback I received in my working life. **〜The story of psycho-effective feedback〜** (1) "If I tell that person, Nakamura-kun will be in trouble." https://blog.colorkrew.com/feedback\_01/ (2) "Everyone on the team is saying that I can't trust you anymore"...
March 14, 2026 4 min readNow that attackers are leveraging AI, automation is essential for defenders. How will the use of AI change security operations, such as anomaly detection, alert prioritization, and automatic response through SOAR? We will explain realistic defense strategies in which humans and AI work together. ｜Colorkrew Security
March 13, 2026 5 min readCyber risk is not an IT problem, but a management risk. Against the backdrop of increasing damage, the spread of RaaS, and tightening regulations, why is security an "investment" now? We will explain the concept of risk and step-by-step investment design that management should understand. ｜Colorkrew Security
March 11, 2026 3 min readExplains the design of using Azure's Entra PIM, AWS's IAM Identity Center, and GCP's conditional IAM to make cloud permissions "limited". This is a practical guide to how to prevent privilege bloat and attack surface expansion. ｜Colorkrew Security
March 9, 2026 2 min readAlmost all breaches of AWS are access key leakage, excessive authority, IAM, and S3 misdisclosure. Continuous monitoring combined with CloudTrail and GuardDuty provides a checklist of practices to efficiently close common entry points. ｜Colorkrew Security
March 9, 2026 3 min readGCP security incidents are mainly caused by service account key leakage, IAM overprivileges, and lack of audit logs. Learn IAM design best practices and practical steps to enable Cloud Audit Logs in a checklist format. ｜Colorkrew Security
February 28, 2026 3 min readWe will explain the four paths of Secrets leakage, such as API key miscommit to Git repositories and CI/CD log leaks, and the creation of a practical mechanism to protect them through three layers: prevention, detection, and rotation. ｜Colorkrew Security
February 27, 2026 5 min readExplain the causes of SOC fatigue due to too many alerts and five practical points for operational design to prevent the risk of missing incidents and personalization. Learn how to build a sustainable SOC with automation, prioritization design, and knowledge standardization. ｜Colorkrew Security
February 26, 2026 3 min read"Safe because I authenticated with an API key" is a misconception. We will explain five threats that lurk after authentication, such as BOLA, insufficient rate limiting, input verification omissions, excessive information responses, and lack of audit logs, as well as implementation points for an unbreakable design. ｜Colorkrew Security
October 2, 2025 6 min readAt Colorkrew, we provide multiple services to our customers. These services needs to be secure. As a DevOps engineer, I need to make sure I am familiar and up to date with the ways bad actors try to...
May 29, 2025 3 min readWe often associate good design with how it looks —beautiful color choices, typography, clean lines, and trendy UI styles. And while that’s not wrong, it’s only one part of what makes a design truly…
May 15, 2025 {{}} On April 5, 2025 I did a live stream on how to run Github Actions Self Hosted Runners on EKS Auto with AWS Heroes Arshad Zackeriya and Jones Zachariah Noel. Disclaimer: 🐶 No Beagles were…
March 27, 2025 Amazon Web Services (AWS) CodePipeline Team has simplified Developer, DevOps engineers operational overhead and streamlined the Deployment process to EKS by introducing an CodePipeline action to…
February 27, 2025 3 min read> Amazon Web Services (AWS) CodePipeline Team has simplified Developer, DevOps engineers operational overhead and streamlined the Deployment process to EC2 by introducing an CodePipeline action to...
December 11, 2024 4 min readDuring AWS re:Invent 2024 AWS released a new feature to EKS i.e EKS Auto Mode, which I have already covered in detail in my previous blog In this blog we will see **how we can create cluster with EKS...
December 9, 2024 AWS re:Invent has begun and there are tons of new service and feature announcement from the AWS CEO Matt Garman's Keynote ( check my x/bluesky thread from the keynote updates) In this blog we will...
December 6, 2024 AWS re:Invent hasn't officially begun, yet there is a game changing new feature to EKS to make you run **Kubernetes like a pro!!!** *In this blog we will investigate what EKS Auto Mode is all about...
September 23, 2025 2 min readIt's a hassle to check multiple people's appointments in Outlook... Eliminate such daily stress with Colorkrew Biz's scheduler function! |Colorkrew Biz Blog
September 22, 2025 2 min read"Meeting rooms that are reserved but not used" and "private room booths that cannot be managed" Colorkrew Biz solves such problems with a simple UI! |Colorkrew Biz Blog
September 21, 2025 2 min readDo you not know where the manual is, or there are too many documents and you can't find the files you need? You can solve that problem with the "Wiki Service" of "Colorkrew Intra". |Colorkrew Biz Blog
June 26, 2025 Experience using Casio's latest label printer "Nameland". We will explain in detail how to install LABEL DESIGN MAKER, how to create labels using QR codes, and how to merge print.
March 26, 2025 5 min readIn the renewed Colorkrew Biz equipment function, the equipment list display screen is even easier to see and search. When you integrate with Colorkrew Workflows, an approval flow is automatically created when you book an amenity.
February 12, 2025 4 min readColorkrew Biz's reception feature significantly reduces costs and time. You can send an invitation email to guests at the same time as booking a meeting room. On the day of the event, guests were asked to scan the QR code in the invitation email and the reception was completed. The person in charge will also be notified. Admission control is also easy.
January 31, 2025 We will show you how to manage your assets using a label printer. Learn how to easily create fixture labels using King Jim's SPC10 label printing software and Tepla SR530.
January 7, 2025 4 min readColorkrew Biz's Spaces (Meeting Rooms) feature allows you to set up automatic cancellation of spaces (meeting rooms) that are not available even after the reserved time. If you don't know who is in the meeting room or want to prevent overtime, we recommend using signage.
April 16, 2024 2 min read**Simplify and Streamline Inventory Control with QR Codes: Discover Colorkrewbiz** Say goodbye to traditional inventory control methods! With Colorkrewbiz, you'll have an innovative and...
April 16, 2024 1 min readAgility, practicality and autonomy in the palm of your hand! With the Colorkrewbiz mobile app, booking meeting rooms has never been easier and more intuitive. **Content:** - **Instant booking:**...
April 16, 2024 1 min readManaging your company's assets has never been easier! With Colorkrewbiz, you'll have a complete, real-time view of all your assets, from computer equipment to vehicles and real estate....
April 16, 2024 1 min readThe hybrid work system is here to stay! But how to ensure the efficiency and well-being of your team in this new model? Colorkrewbiz offers the ideal solution to manage hybrid work...
April 16, 2024 1 min readSay goodbye to disorganized and unproductive meeting rooms! With Colorkrewbiz, you'll have access to an all-in-one solution to manage your spaces smartly and efficiently. Contents: -...
April 16, 2024 2 min readOKR, an acronym for Objectives and Key Results, is a management methodology that has conquered the business world. But where did this powerful tool that drives the success of companies such as...
April 16, 2024 2 min readTired of feeling like David versus Goliath in the business world? OKR (Objectives and Key Results) can be your secret weapon to achieve extraordinary results with your team...
September 27, 2023 2 min readTechnology, from time to time, presents advances that revolutionize the way we do business, communicate, and even how we set our goals. In today's business context, a...
