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Senior Java Backend Engineer / Architect

WizeNoze · Oct 7th 2020

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Are you looking to work on challenging projects, with a diverse and motivated team, while building technology that can change the world? Do you want to join an award winning startup in their scale-up phase? Do you want to give students all over the world access to a prosperous future? Do you want to work with large distributed systems, machine learning, web crawling, and other interesting technology?

We’re looking for a Senior Java Backend Engineer / Architect with 8+ years experience in Java, Spring, REST APIs, Elasticsearch, and other web tech based in Amsterdam or remote within the +-2 GMT timezones. You need to be curious and passionate with a drive to continually improve yourself, your craft, your code, and your colleagues. You need to hold yourself and your peers to the highest standards to deliver the best quality products possible! You must not be complacent, and must keeping working to improve your craft and skills. You must be able to step outside your role to work on requirements, deal with customers, and think holistically about our systems, processes, and people; always with a view to improving efficiency and long-term maintainability and quality.

Your responsibilities:

  • designing, building, and maintaining highly-scalable APIs and distributed systems in Groovy/Java with Spring, Hazelcast, MySQL/PostgreSQL, AWS, etc.

  • collaborating on the code and systems architecture with the CTO

  • improving our web crawler and integrations with client content;

  • enhancing our search engine based on Elasticsearch;

  • mentoring and coaching other developers on code quality and architecture;

Your abilities and skills:

  • Fluent in English

  • 8+ years experience designing, building, delivering, and maintaining production software and distributed systems

  • A solid computer science background with deep understanding of algorithms, computing theory, etc. Degree preferred, but self-study also a big plus

  • Proven ability to ace the entire product life cycle: from requirements, through design and development, to testing and production deployment

  • Show how you’ve built open source or commercial products from the ground up on your own or as a team lead/architect. It’s not enough to have just been part of a team, we need to see that you had a pivotal role to play in many projects

  • Be able to communicate effectively with team members, but also be able to solve difficult problems on your own with perseverance and tenacity

  • Prove that you’re continually working to improve your skills and knowledge, by raising the standards for your own designs and code constantly, and by reading and learning from books, courses, and peers

  • Prove that you can write high quality code with deep thought given to performance, concurrency, maintenance and other issues. No “but it worked on my machine” allowed, or code that you wouldn’t be happy to work on again in a year’s time

  • Writing web backends in Java with Spring, RDBMS, Elasticsearch, etc. on an AWS stack

  • REST API development. HTTP, JSON, etc.

  • Used to development workflows with git and github

  • Comfortable communicating and collaborating on designs remotely using diagrams, video conferencing, instant messaging, prototypes, etc.

  • Linux administration and shell scripting

  • Friendly and helpful to tech and non-tech team members.

  • Must be able to think of edge cases and errors to be able to write good unit and integration tests, and to test by hand to make sure new code is production-ready.

  • Tech:

  • Java. Deep JVM experience in profiling, performance optimisation, etc. required

  • Any other languages: Groovy, Bash, Python, etc.

  • SQL

  • JPA, Hibernate, Flyway

  • REST APIs

  • MySQL/PostgreSQL

  • Devops techniques like continuous integration and delivery, zero-downtime deployments, clustering, queues, failover, redundancy, automated and validated backups, etc.

Bonus skills:

  • Startup experience

  • Remote work and collaboration experience

  • Elasticsearch

  • Apache Storm

  • UI/Frontend experience. Javascript, RiotJS, React/Redux, etc. background will help you when dealing with the front-end deployments

  • Amazon Web Services:

  • Route53

  • Elastic Beanstalk

  • EC2

  • IAM, security groups, bastion hosts

  • S3

  • Cloudfront

  • RDS

  • SQS

  • Cloudwatch

  • Instrumenting code for Prometheus

  • Application performance monitoring implementation

Your traits:

  • Curious. Able to learn and apply new concepts and tools rapidly

  • Pragmatic. Choose the practical path to delivering a product without getting lost in fancy new technologies or techniques

  • Attention to detail. Every line of code should be crafted well and understood thoroughly. No copy/paste coding allowed

  • Perseverance. Able to solve difficult problems without giving up and expecting someone else to take over

  • Take pride in your work. You should be proud to put high quality software in front of users. Software you’ve tested thoroughly yourself

  • Take responsibility for your work throughout its life cycle from requirements to delivery and maintenance

  • High degree of personal responsibility over designated duties. Step outside your role if needed to get the job done well

  • Consistent and organised

  • Timely and eloquent communicator

  • Focused on helping the team win, before personal gain

  • Open to receiving objective criticism and improving upon it

  • Like to work in a startup environment

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