Manoj selvam

Which companies are employing the most Kotlin Developers in the UK? 👨🏼‍💻 1) JPMorganChase (526) 2) Meta (493) 3) Tata Consultancy Services (430) 4) Google (414) 5) Amazon (361) 6) Sky (319) 7) Lloyds Banking Group (280) 8) Arm (260) 9) Goldman Sachs (235) 10) Cognizant (217) #LinkedInTalentInsights

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Too many 'software engineers' today are glorified code monkeys. Harsh? Maybe. True? Absolutely. - 90% can't explain how their code runs in production - 95% have never touched a database outside their ORM - 99% think 'infrastructure' is someone else's problem News flash: AI is coming for your job, one-trick pony. The future belongs to the curious. The explorers. The 'how does this whole thing work' nerds. Why? Because they'll be conducting the AI symphony while you're still tuning your one-string banjo. Here’s 4 signs you're on the endangered list: 1. Your knowledge of DevOps doesn’t go beyond merging your own PR 2. You've never SSH'd into a server (it's not a disease, I promise) 3. Your debugging process is 'console.log' and pray 4. You think scaling means adding more if-else statements Embrace curiosity. Break things. Ask 'why' until your team wants to mute you on Slack. Because in the AI future, the curious engineer doesn't just survive. They thrive. P.S. If this post made you angry, you might be a code monkey. Don't worry, there's still time to evolve. 🐒→🧑‍💻

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If a 100 Mb video gets 20k views in one month, how much bandwidth do we need to serve the video? These kinds of questions are called capacity estimation questions. They are part of system design interviews. The next version of the system design judge will have capacity estimation questions. Coming soon! #SystemDesignJudge #CapacityEstimation

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Nice, you can now use FIS to inject failures into Lambda functions as part of a controlled chaos experiment. Most people know about chaos engineering as a way to stress test the infrastructure layer, but it goes much further than that. You can apply chaos engineering to application logic (e.g. error handling, misconfigured timeouts) as well as your organizational processes. Five years ago, I spoke about doing chaos experiments on Lambda functions at re:Invent, why it's worthwhile, what kinda experiment you might consider and how you can inject failures at runtime. Recording here: https://lnkd.in/eJzhkwnm The failure injection part was difficult because everything had to be done in user land as we don't have access to the underlying infrastructure that runs our code. I need to play with this, but I suspect it'd really simplify the process of adding delays or errors so I can test my error handling logic, find misaligned timeouts, and other problems proactively. Here's the official announcement: https://lnkd.in/edm8Fkv5 and the three types of failures you can inject through FIS: https://lnkd.in/eXP6Auvf

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There is a lot of talk about engineering metrics these days. In a 2023 UK based survey, the public along with software engineers agreed that prioritizing speed and efficiency, is one of the least important factors when using computer systems. Only 22% agree that this is a high priority. They cared far more about “delivering work that is highly reliable” 51% or “ensuring the data is kept safe” 47% as their top set of priorities. What are you prioritizing? Delivering fast or delivering high quality? The metric system you are using might not be optimizing for what you think it is. Check out my new article on metrics frameworks, what they are and if they are good enough.

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Have you ever wondered why software developers' eyes widen at the mention of timezones? Tom Scott's video on this from 2013 summarises well some of the challenges behind timezones we still manage today: https://lnkd.in/e4g8w3VT #timezones #computerphile #programming

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Does anyone do alot of prometheus.io client side metrics stuff... ? I have a couple of questions about how far you can push the client as a local metrics store...... 1) the client when iterating makes you loop through metric families. does anyone know why? id rather loop thru just metrics as a flat space. 2) the client doesn't store timestamps when you Inc() or Set(...). this means the only way to see update times is to expose them to a server... and hope the server is scraping regularly . has anyone else wanted to be able to know when they (on the client side) last incremental a metric?

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This post is on Error correcting codes: How do we get intuition into coding gains ? How do we get Eb/N0 gain > 0 dB in a rate = 1/2 code ? Here is my take on this as part 1:

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Back with another #KirstysKotlinFacts ! 💡 Last week I spoke about the misconception that Google was the original creator of Kotlin. Here's another misconception. Kotlin was created for Android. Wrong. Kotlin was always designed with the intention to be used for server-side backend development, it just so happens that it's also good for mobile development. The push for mobile actually came from developers themselves. The already existing mobile language #Swift by Apple was not working quite as well as hoped/needed, so the community requested it in need of a better language for android. Android became their priority in 2014. So, despite the initial purpose of creation, nowadays if you tell someone you're a Kotlin developer, more often than not, they will assume that you're an android developer since Kotlin is now more widely known for its android use. Would you also make this assumption if someone told you they were a Kotlin developer? #Kotlin #Android #Backend #SoftwareDevelopment

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It's 1st December already, which means it's "Advent Of Code" time again (https://lnkd.in/ebrUApNx). I've been taking part since 2021, and whilst I've had greater success some years than others, I've always really enjoyed doing it. Sometimes, day-to-day coding at work can end up being a bit of a repeat of using the existing components to do something or just modifying existing code to add some functionality. It's good to have the opportunity to start with a blank sheet of paper (or an empty file in an IDE) and try to solve a completely new puzzle from scratch. The puzzles are also sized quite nicely, so it's not too arduous if, after solving the puzzle the first time around, you want to go back and try again. It can also be a good way to learn a new language. In 2022, it coincided with me having just been made redundant - as well as being a great distraction from that, some of the jobs I was interviewing for may have needed Python, so I was solving the puzzle first in Typescript/node, then trying to write the same solution in Python. Anyway, I'm a big fan and I definitely recommend giving it a go!

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DevOps is not a Job Title, it's a mindset/philosophy. This is how we will know if that debate has finally been won. The 390,000 DevOps Engineers on LinkedIn will change their job titles. Until that happens, sorry but it is a valid Job Title. (Even if I prefer SRE, Platform Engineer, Cloud Engineer, or Backend Developer.) #devops #sitereliabilityengineering #platformengineering #cloud

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Programming tests are: ❌ Often stressful ❌ Take-home tests are usually time-consuming ❌ Rarely representative of the approach and conditions of the job that they're testing for ❌ Many times online code testing platforms will penalise you for clicking away from the screen and sometimes they penalise you for any copying and pasting ❌ Usually theoretical "best practice" based - showing how you might do something if you were working in a vacuum, not accounting for business needs / interdependencies with legacy platforms etc ❌ Typically they favour those who have more recently come from education over more seasoned professionals ❌ In some cases the results are ignored or overlooked anyway if the candidate has done well enough in interviews rendering the test itself pointless ❌ In other cases companies take a "line in the sand", "computer says no" approach where even someone who is a known entity to the team or business will be rejected if they don't do well enough on the test   I have NEVER heard a developer say that they enjoy technical tests.   Some of the most senior, capable, accomplished developers I have worked with refuse to complete them as part of a process - particularly timed ones.   How often do you write code in a real life production environment with a timer counting down? And when would you ever want your team to not have access to Google or GitHub or Stack Overflow on a difficult task? A significant part of an Engineer's role is to research potential solutions critically, not to be a walking programming encyclopedia!   Even if your test is a less pressured, more representative take-home task rather than a recorded or monitored time-pressured task, they're not always that informative and they often take up a large chunk of time, which, particularly for someone who is currently in full-time employment and interviewing for multiple other opportunities, is a lot to ask. They also often lead to excellent candidates withdrawing from the process.   To quote a senior dev I spoke to the other day: "It doesn't matter how great the pay or the company or the work are. I'm a professional with over 10 years' experience, treat me like it. Don't set me bullsh1t homework"     👉 So why is it that so many interview processes use them? 👉 And what are the genuine legitimate alternative approaches to be able to ascertain someone's technical capability?   Keen to hear your thoughts Linkedin? Futura Talent #technicaltesting #techrecruitment #developerlife #softwaredeveloper #softwareengineer

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Developers: Why are you using an old laptop? I did the maths on my work laptop. It’s a reasonable spec, that I’ve had since 2022. M1 Pro, 16GB RAM / 512 SSD and is 2 years old. Buying new equivalent, M4 Pro 24GB RAM / 512GB SSD would cost around £2k. Currently you can get the same model on backmarket for just under £1k. That would mean the cost of replacing is £1000 over 2 years which works out £10 per week or £2 per day if you account for working days. My pre tax daily cost to the business is around £300 per day. Split that over 7.5 hours is £40 per hour. Or 75p per minute. I run my test suite multiple times a day and it can take maybe 5 minutes a run for the full suite. All I need to do is for my laptop to save me 3 minutes a day in run time, for it to cover the £2 per day it costs to upgrade. There's no environment impact if you sell your laptop on or feed it down the chain to someone who doesn't need the power. So the question is, apart from being attached to your laptop like some panini sticker album, why would you not upgrade? #prodeveloper

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The worst code I worked with sold for $700M It changed how I see tech: I was an idealist: • Clean code • Thorough testing • Best architecture possible When I saw the news, I realised I was wrong There was value in • 2 enormous PHP monoliths • Integrated over database • Without tests The business made $1B in trades. The software was just an automation. Business value > Tech purity

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Software professionals serving the enterprise market use the words 'greenfield' and 'brownfield' as clever terms of art. However, they are terribly ambiguous. Greenfield could refer to the first-time install of the application. Greenfield could refer to the enterprise having no installed base of customers. Brownfield could refer to the application already having a deployment upon which an upgrade is needed. Brownfield could refer to the enterprise having an installed base of customers. Brownfield could refer to the enterprise having a preexisting deployment of some other competitive applications that is being displaced by a first-time install of your replacement application. Software people should stay out of ecology. They are not good at cultivating terminology using this metaphor.

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Trying to hire a junior to mid-level engineer in Scotland with great benefits and remote working is hard... https://lnkd.in/eQNHVqGR Not because the role isn't attractive (you'd be working on exciting large-scale system infrastructure challenges writing code with Golang - 1,000's of Kubernetes clusters, 10,000s of cloud VMs) or because the team are all crazy (they're thought leaders in their field including multiple upstream Kubernetes contributors from 3 continents!)... you got me... maybe there's a little crazy - but only the good kind! No... my challenge is whether this AI-generated image to go with my LinkedIn post makes any sense! I never have much luck with images containing generated text. Even using prompts like "spell check any text" or as is the case with this one "do not include any text" doesn't seem to work. Not to mention, I know what a Scottish Terrier is... but that "thing" in the bottom right looks more like an angry, tartan-wearing Capybara. Comment below for your biggest concerns with this image... or if you're a junior/mid-level, talented software engineer based in Scotland - maybe just skip over the image and apply online - https://lnkd.in/eQNHVqGR

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👨‍💻This one’s for the software engineers, you’ve probably been there: staring at a tangled web of code that somehow manages to function despite it’s apparent chaos. It's not pretty, it's not perfect, but it gets the job done. 💡 Here's the thing: messy code isn't always a sign of incompetence. Sometimes it's a testament to the creativity and resourcefulness required to solve complex problems under tight deadlines. 😂 🔧 Sure, we all strive for clean, elegant solutions. But in the real world, deadlines loom, requirements shift, and sometimes you just have to roll up your sleeves and make it work, no matter how messy it gets. #code #softwareengineer #itworks

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Can you relate? It's not always easy to hire C# developers. Misconceptions still exist around the language which makes it more challenging to fill C# roles than Java or Python. Passionate developers are often snapped up quickly, ​and convincing them to join your team requires more than a competitive salary. You need to show your vision, value their expertise, and demonstrate a genuine appreciation for the language they love ❤️. Check out my tips on building a C# obsessed team [link in the comments]. #CSharp #TechRecruitment #DeveloperPassion

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