I'm about to start work on a project that will contain an iOS client, a server backend and eventually a web client. The service will start small, but might potentially become fairly large in terms of number of users and data transmitted.
I have very little background in server programming (other than having a longer Linux phase back in the 90s), and mostly just do frontend dev work, with my primary platform and language of choice being iOS and objc/swift. Now I'm in the position where I most likely will be hiring a full-time dev to work on the backend and web frontend, starting in January, but I honestly have no idea what software platform I should be basing the server-side stuff on, and therefor no idea what I should look for in a new hire.
What do people recommend for a server-side software platform for something that needs to be very scalable? I'm thinking we might to Amazon EC2 for the hosting, and I think it might be easier to find .NET devs here, so I'm kinda leaning towards that, but I don't want to base such a crucial decision on just what I have at hand here now.
<wry>
Follow the fads! Pick the flavor of the day for every piece, that way when the fad fades it will be unsupportable and undocumented.
</wry>
<expensive style="slow:10; methodical:7; costOverrun:50%">
Oh, wait, no... Perhaps find an expensive consultant with comfort in all the stable and long-term supportable candidates and map out the data structure and needs for performance for your app.
</expensive>
<structural>If you have table based data pick something SQLy and if you have tree based data go for something less SQLy (maybe not all the way to M but who knows...).
If you are competing with another product choose whether you are going for quick turn around feature adds, performance, stability, or some other competitive point.
Decide where you want to draw the line on how much you want to have done on the server vs client. If you invest in the server, you can get great performance and reduce platform variability. However you will need to build security in from the ground and stay on top of it. If you process on the client your performance will appear linked to the customers's investment in HW.</structural>
<nextSteps>
Your bounty is running out, and you haven't given us much info to help you pick a platform. I suggest identifying as much information as you have and decide if you can disclose enough to get help in this public forum or hire someone you can get to sign a non-disclosure agreement so that you can really dig into the architectural requirements.
Please note that http://norvig.com/21-days.html Peter Norvig (read to see why he is authoritative) quotes Alan Perlis: "A language that doesn't affect the way you think about programming, is not worth knowing". The architecture question should be answered by someone who knows enough languages and platforms to understand the way that programmers who use it think. You REALLY don't want someone who know Java and can read someone else's php to write your php. You want someone who can think in the language you choose. You want an old experienced programmer who is multilingual to review your product to help you identify the language and platform that best meets your business needs.
</nextSteps>
Some of this is tongue-in-cheek, but perhaps the best advice I can offer you is to hire the best person in your market and trust them.
Related
I have recently completed my bachelor's degree in Computer Engineer. I have had one small internship till now.
I have little coding experience.
After searching for months (Does not mean I am desperate for the job-Just wanted to clarify so that your answer is not based on it), I have been offered a job at a start-up to design and develop their web application for user interaction and management. I am the sole technical hire and will be the only person responsible for the development of the platform. The founders, though highly educated, do not have any sort of technical background.
It seems like an interesting opportunity but I am wondering if it too much responsibility too early?
I know this is not a standard programming question but I think this is a programming ability understanding type of question.
I would highly value your insight on this subject.
Thank you.
Just looked at your LinkedIn profile. Looks like you have great entry-level programmer qualifications.
Being the sole technical member of the team, with limited industry experience may be a great opportunity for growth.
However, the flip side argument is that you may be losing out on opportunities to grow with adequate mentorship. In all reality, the college/university CS/CE curriculum does not typically prepare you to handle real-world problems that senior-level software engineers address daily. In a company where you are NOT the sole technical staff member, you will have the opportunity to collaborate with and learn from experienced pros. In my opinion, that is a huge factor in selecting your first job.
So ... assuming this startup grows quickly ... are you qualified to:
Make day-to-day technical decisions regarding scaling, security, and prioritization of product features?
Interview, hire and evaluate the performance of additional technical personnel?
Develop the full-stack of a web application including setting up and administering server, database, APIs and associated frameworks, client side technologies?
If you are uncomfortable with any of the above (which is a very limited set of questions) you probably aren't yet ready. It takes a long time before any of us are. Before I took my first leadership position in a startup, I had over 10 years of experience in multiple industries and with several technologies. But that's me ... you have to make this decision for yourself.
Depends on the type of the company. If there's going to be interaction between the users and the site a lot and it just doesn't serve the purpose of providing information, then you'll have to handle things on the server side as well to provide proper response and you need to be quite good with your stack and as a fresher, it isn't quite recommended to be a sole performer in the technical section of an entire firm.
Since you tell, web application, I assume the user does have to interact. I wouldn't go for it if I were you. But you haven't told about the level of expertise you possess in your skill set. So, can't say whether or not you'll be able to handle it.
and this is just my opinion btw.
We've got an Excel spreadsheet floating around right now (globally) at my company to capture various pieces of information about each countries technology usage. The problem is that it goes out, gets changes, but they're never obvious, and often conflicting - and then we have to smash them together. To me, the workbook is no more than a garbage in/garbage out type application waiting to be written.
In a company that has enough staff and knowledge to dedicate to Enterprise projects, for some reason, agile and language/frameworks such as Rails, Grails, etc. are frowned upon. That said, I can't help but think that this is almost a perfect fit for the need, given the scaffolding features for extremely simple implementations of capturing raw fields with only a couple lookups (i.e. a pre-defined category). I'm thinking this would be considered a very appropriate use of these frameworks.
Has anyone worked on these types of quick and dirty apps before in normally large-scale, heavy-handed enterprise environments with success? Any tips for communicating this need/appropriateness to non-technical management?
The only way to get this implemented in a rigid organization is to get this working and demo it -- without approval. It's very hard for management to say no to a finished project.
I work for a really big company & have written many utility apps based on Rails (as well as contributed to some larger Rails projects). That said, the biggest concern is not the quality of the app, but who's going to support/maintain it when you leave or get hit by the bus.
IMHO, The major fear that an enterprise organization has - especially if the application becomes more critical to it's core business - is how to support it. If it doesn't fit into it's neat little box of supported technologies, it's less likely to happen.
Corporations have been bitten by this many times in the past & are cautious when bringing in new technology.
So, if you can drum up more folks to learn Ruby/Rails in your group (or elsewhere in your company), you may be able to make a good case for it. Otherwise, sad to say, your probably better off implementing something on Sharepoint :-(.
If you already have a Java infrastructure, then creating a Grails app will require little to no additional IT ramp up to support and maintain. The support and maintenance cost and effort should be the same as for a Java application (i.e. Grails apps run on Tomcat, use the same JVM, use the same diagnostic/profiling tools, etc.).
In my experience, larger IT organizations have a harder time supporting Ruby when its not already in the toolchain because its a new language, new deployment environment, and requires a considerable amount of support and maintenance ramp up.
I would develop a minimal viable product, then make friends with someone in IT who can help you deploy it into a staging or production environment. Then get a few of the users to hop on board and test it like its a Beta product. After that, open it up to a larger audience.
So as others have said, forgiveness over permission, but be smart about the impact on the IT organization.
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This question is not about which is the best, it is about which makes the most business sense to use as a company's platform of choice for ongoing freelance development.
I'm currently trying to decide what framework to move my company in regarding frameworks for web application work.
Options are
ASP.NET MVC
Django
CakePHP/Symfony etc..
Struts
Pearl on Rails
Please feel free to add more to the discussion.
I currently work in ASP.NET MVC in my Spare time, and find it incredibly enjoyable to work with. It is my first experince with an MVC framework for the web, so I can't talk on the others.
The reason for not pushing this at the company is that I feel that there are not many developers in the Media/Marketing world who would work with this, so it may be hard to extend the team, or at least cost more.
I would like to move into learning and pushing Django, partly to learn python, partly to feel a bit cooler (all my geeky friends use Java/Python/c++). Microsoft is the dark side to most company's I work with (Marketing/Media focused). But again I'm worried about developers in this sector.
PHP seems like the natural choice, but I'm scared by the sheer amount of possible frameworks, and also that the quality of developer may be lower. I know there are great php developers out there, but how many of them know multiple frameworks? Are they similar enough that anyone decent at php can pick them up?
Just put struts in the list as an option, but personally I live with a Java developer, and considering my experience with c#, I'm just not that interested in learning Java (selfish personal geeky reasons)
Final option was a joke
http://www.bbc.co.uk/blogs/radiolabs/2007/11/perl_on_rails.shtml
As you said for the media/digital marketing sector php is the way to go.
I love .Net (it would be my first choice if the target market wasn't a factor).
I would really look for good well rounded developers regardless of their tech or market as opposed to ones with "media/digital marketing sector" experience.
It is possible to find good/experienced/reliable developers with knowledge of multiple frameworks. If this is a requirement, it is of course possible to vet candidates accordingly.
Given that you're referring to freelance development, it would probably make sense to add the dimension of "where the developer is based" into your thinking, as dealing with someone who's a stone throw's away compared to dealing with someone abroad or another city may affect how you work together. This means that where you are based also affects your choice: if you're based in a small town, there will be less quality canditates close to you with suitable skill sets.
I'm currently learning Symfony for myself, and work as a freelance advisor/product developer for a site that's built with CakePHP. Although an experienced PHP developer should be able to make the leap from one of the above to the other quite quickly, there's a fair amount of framework-specific intricacies that can only really be learnt by coming across the problem and then searching for the solution, or by being guided by someone who already knows. Symfony is considered to have good documentation, but I feel that there's a quite a lot in it that's also not in the documentation and that can really only be learnt by doing it.
I also worked for a company quite recently who used Symfony, hired high-quality PHP developers only, and if I recall correctly, it was about a month or two for new guys to get familiar with the code and the workings of Symfony, and start becoming properly productive.
Hope that helps.
In my (heavily biased) opinion, Django is gaining some traction in this sector. Off the top of my head I can think of a number of high-profile news organizations that are making significant use of Django and I've seen reports of organizations utilizing Django for putting up special one-off sites quickly for unique coverage of special events or circumstances. I know firsthand that PBS and National Geographic also use Django extensively for their web properties and I understand Discovey Channel does as well. There is a nice testimonial about how Michael Moore's site was rebuilt quickly using Django: http://blog.concentricsky.com/2009/10/michaelmoore/. I'm not sure if MSNBC has begun utilizing Django internally, but they did acquire Everyblock.
A few others I'm aware of that use Django heavily:
Mahalo
NASA
University of Texas
I've also seen that Django is being used by startups outside the media sector so I wouldn't say it is specialized toward a particular business sector. There are a lot of organizations out there that have been sort of silently using Python internally over the years and so Django is quickly becoming a natural option for web-based services. Python actually has decent roots in the scientific communities, financial sector, and I've spoken with a number of people in the entertainment industry who use Python in their digital effects / post production pipelines.
Maybe not the most riveting content overall, but there is some good info in here: http://djangocon.blip.tv/file/3041158
Look at your clients. Frameworks are just tools, you will have to go with the tool that suits the particular job. This also means your choice to dive into a framework will choose your future clients.
Many SMB shops need PHP because that it is the easiest to host and is interoperable on many layers of "platform" (not just OS, but also supports all DBs etc.)
ASP.NET MVC: I heard a lot of awesomeness about it, I like C# as well. But I can't afford to go only with the options Microsoft provides (database for example) and Microsoft products only really support they own stuff.
Django: Expected to gain huge momentum, but I'll wait until the language itself (syntax) becomes stable.
CakePHP/Symfony: CakePHP is very easy to pick up and is a good choice if it fits all the requirements.
Struts: Quite heavy, I would learn Spring (MVC) instead.
Pearl on Rails: Haven't really used/seen it, so no idea.
You could also consider to learn a framework that is radically different from you current knowledge.
So I love Symfony. It does all I need for a Framework to work fast and clean.
The structure and the architecture is pre-defined so everybody knows where to put stuff, so you can easily work together with a whole bunch of developers.
I would never chose CakePHP over Symfony, because if you have to make changes to a model, you can never again generate code after the development has started.
CakePHP just overwrites everything.
I sure lost all my code a few times. Really annoying.
Symfony just extends the generated code and that is where you develop.
Here you find a good discussion about CodeIgniter (with which I develop at the moment, and it is no MVC and PHP4-based) and Symfony: codeigniter-vs-symfony
The learning curve is a bit steeper for Symfony, but it has enough complexity for all situations I ever encountered.
My next project will again base on Symfony 1.4. And if you can wait, there will soon be Symfony 2.0
ASP.NET MVC, but only if you can use both a frontend and a backend developer for each project. It'll probably be harder to find developers with both competences and you might have to push .net-developers a bit to get them to use MVC.
I think Erlang is very well suited for server systems developed in my workplace (currently developed in Java). I am a bit skeptical how this would be accepted both by developers (who have no idea about functional or Erlang) and by managers.
Any ideas on how to approach the issue? I am thinking about some hybrid system, where the hardcore highly reliable infra uses Elrang, and app specific stuff developed in Java (as nodes?)
There are a few approaches, and neither have any guarantees to actually work
Implement something substantial in a short time frame, perhaps using your own time. Don't tell anyone until you have something to display that works. Unless you have a colleague in on it.
Pull up lots of Erlang projects that are good demonstrations of the features you want. Present it to your managers and try to frame them about the risk in keeping using Java with this kind of technology available.
If the company you work for actually have a working code base in Java already, they're not likely to take you seriously when you suggest to rewrite it in another language.
The true test that you believe in Erlang being a much better choice: Quit and start up a competing company and bring the technology insight you have in your current industry. Your managers are really comparing a similar risk-scenario as you would do if you were to quit your job, and they are looking for the same assuring facts for success as you would do, to consider leaving a "safe" paycheck.
As for how to integrate, check out the jinterface application in Erlang. It allows Java code to send messages to Erlang nodes, and it allows Java to expose mailboxes to the Erlang nodes as if there were Erlang processes.
It's all about ROI (Return On Investment) to a manager: a manager will be concerned about performance (of the company). In order to appeal to his business nature, you'll have to make a case for it using dollar$ (or whatever appropriate currency).
Beware that undertaking a "skunkwork" project on the side to "prove" your solution based on Erlang might backfire: "so you had time to play with Erlang, why didn't you spend the time on the project then?" (Of course, not all managers/companies would think this way).
You have to take into account the whole proposal e.g. impact on the team, skills to be developed etc. It's all about money.
If I have an advice for you: start small, plant a seed, nurture it and watch it grow.
A wise man once said to me:
"It's not about technology, it's about
the product & market".
Start by not targetting a rewrite but using erlang for a new feature/project. Rewrites can be expensive and taking a chance on erlang for something that is already a time consuming and costly undertaking is a hard sell. But if there is a new piece that could be done in erlang and java, you stand a better chance. The project will be small enough hopefully that you can discover early if erlang is a good fit and adapt accordingly. And when erlang proves itself in that project you will have better data to make your case with.
We're introducing RabbitMQ into our infrastructure, which currently runs a combination of C++, Java and Python applications. I'm not specifically intending to move the team towards Erlang, but if I were, introducing a well-written third-party tool that just happens to use Erlang is a very good way to get the foot in the door.
One major caveat is that while Erlang is a wonderful language to learn, the surrounding technology (OTP in particular) has a huge learning curve and is extremely primitive in many ways (debugging, IDE's, etc.). It is getting better all the time, but reluctant converts will crucify you if you don't warn them about the pain of learning to program in a radically different environment. Even simple things like the lack of code-sense technology (E.g., type 'foo.' and the IDE tells you what methods you can call on foo) can leave a really bad taste in the mouth.
What language, framework, and hosting considerations should one make before starting development of a scalable web application?
The most important consideration is not to over-engineer to the point that it gets in the way of building and launching something. Analysis paralysis is the single biggest inhibitor to productivity, progress and results.
Yes, do some planning. Pick a framework. Perfection in a framework will be impossible to find because it doesn't exist, partially because you don't know what you need until you build it anyways. Chances are, if you pick something, it will be better than picking nothing.
Yes, try to pick flexible, inter-operable tools for where you see yourself going.
Yes, look for a good built-in feature set where you see yourself going in the next 6-18 Months. Trying to look beyond that is not really realistic anyways as most projects change so much anyways going towards the first release.
So, pick what you're comfortable with or what is familiar. Don't follow the crowd, do what gets you the best results, quickest, and often. Understand that you might have to change in the future. So, whatever you build now, try to use unit testing so you can re-factor if ever needed.
If what you're building is going to be super successful, it will be a great problem to have, and an easy one to work on once it's making money as you'll be able to get other talent to help you.
Share what you end up picking and why for your situation -- it helps the us learn from you too!
Don't necessarily marry yourself to one language or framework. It may be that some parts of your site work better with different languages and frameworks than others. For example, all of 37signals' sites are based on Ruby on Rails, but they recently wrote a blog post about how the underlying technology of one is actually written in Erlang now because it's much easier to do concurrency that way.
Obviously there's a level of complexity where things turn into a mishmash, but using the right tool for the job — even if that means different tools for different jobs — can simplify things.
Firstly on language, it largely doesn't matter. PHP, Java and .Net being probably the biggest three are all proven in the sense that they run some of the largest sites on the Web so don't listen to anyone who tells you one is more suited than any of the others.
Some might also put Ruby and Django/Python in this list. I have nothing against them but I'm not aware of any big (say top 50) sites using either.
Hosting considerations depend on how low you want to start but basically the order is:
Shared;
Virtual Private Server;
Dedicated.
Scalability will largely be about your application's design than any language, framework or provider. Efficient database schema, efficient delivery and use of Javascript/CSS and in-memory caching are all issues common to any language or framework.
Language - I'd recommend something with good frameworks and good testing libraries like Perl or Java.
Framework - it depends on what do you plan to do. If you start with a hosting that does not allow FastCGI, it is best to avoid such frameworks like Catalyst or Rails. That's why I love CGI::Application (primarily Perl, but ported to other languages too) - it can run as CGI, FastCGI or mod_perl. For development it can be run from it's own web server.
Hosting - nothing is better than you own server. It can be your own server, leased server or virtual server. But you can start with cheapest hosting and when you need more, you should be able to afford it.
It depends.
Start by looking at your requirements (Functional or user defined) (Non Functional - aspects that describe your desired system link text)
Next I would clarify what it means to have a scalable web application. Define it as test cases that can be clearly tested (must support X page views / second with response time < Y seconds).
Once I had those pieces in place I would look at what type of skills my development team can support (for the intial project and on going maintenance). Then find some case studies of applications out in the wild that use similar language or framework. If someone else has made a specific language / framework scale then chances are good that you can too.
Finally go out and look for some hosting providers that support your chosen language, framework and requirements.