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About the Role

This role is remote.

We are looking for DevOps Engineer to join the Engineering team as we are on a mission to build and deliver the most sophisticated crypto-trading platform out there.

My client, a London-based tech company in the Blockchain/Crypto space, focuses on designing and creating the infrastructure that will allow decentralised applications to thrive and reach their full potential. They are currently building a vertically integrated staking-validator-exchange solution for Proof of Stake blockchains. Our easy-to-use, secure and scalable platform aims to establish a new product category in the industry.

Responsibilities

* Lead the building of a scalable and secure infrastructure in this fast-moving space
* Design the platforms that will enable a continuous delivery environment. This includes automating testing, continuous integration pipelines, and provisioning of environments
* Run our production environments against critical SLAs (speed, uptime, stability).
* Build solutions for monitoring and collecting metrics to improve functional areas.
* Lead aspects of security design for our environments both from a production and an internal access aspect.
* Create an auto-scaling infrastructure in both cloud and hosted environments finding the right balance between cost, security and scalability
* Work with the engineering team to create connectors to new DeFi protocols/blockchains and to build new smart contracts
* Set up and maintain node infrastructure Requirements
* Strong and extensive knowledge of AWS and other cloud solutions
* Knowledge and experience in designing and deploying hybrid infrastructure solutions (e.g., with Digital Ocean) is a must
* A good understanding of security and encryption technologies eg. AES and key management
* Experience with toolings like Kubernetes, Sumologic, Grafana, Consul or similar solutions for digital operations a must
* Demonstrated experience growing a large scale and mission-critical environment with regards to configuration management, security and DevOps



Experience or knowledge

* Ethereum, smart contract technologies and blockchains are not mandatory but will be useful.

My client is building a decentralized application allowing users to trade Bitcoin on Layer 2 in a permissionless and censorship-resistant way. It allows users to leverage Bitcoin up to 5x, and earn interest, without sacrificing their security or privacy. They are looking for additional developers to aid in constructing the Core system functionality and development of new features.

Key Responsibilities

* Develop and test smart contracts related to lending, borrowing, trading, bridging and governance
* Review contracts of team members for logic flaws or security issues
* Research and concept work for new features or improvements to the system
* Coordinate the development of new features within a small team
* Development of backend services connected to the smart contracts - Node.js

Skills

* Solidity
* web3
* Test framework: ideally hardhat, but truffle experience is also acceptable
* Strong sense of security. Knowledge of common vulnerabilities in smart contracts and blockchain development in general.
* Preferably Node.js, Golang and Java
* General Blockchain experience
* Preferably Bitcoin experience
* Minimum 2 years Solidity experience
* Minimum 5 years Development experience

AWS SENIOR CLOUD ENGINEER - CONTRACT - MARKET RATE - REMOTE

Are you an experienced Cloud Engineer that is looking for a new challenge?

We are currently recruiting for a AWS Senior Cloud Engineer for our UK based client who are world leaders in their technology.

Project Outline:

As an AWS Cloud Engineer you will have experience of public cloud architectures and migration strategies, as well as a good understanding of the different factors that influence or inhibit Cloud adoption - and will be able to guide clients to make the right choices.

Role Responsibility:

* Contribute specialist Cloud and Infrastructure Architecture knowledge and experience, specifically around Public Cloud Architectures.
* Deliver client engagements, designing and costing Cloud Architectures and migration projects.
* Work as part of CGI teams, or embedded in client teams, transferring your knowledge to colleagues or clients as required.
* Have a strong desire and ability to pick up and learn new tools quickly and keep your knowledge current.
* Lead the design and/or deployment of cost effective Cloud solutions for either stand-alone engagements or as part of larger programme.
* Write and communicate proposals at a senior level, setting and managing stakeholder expectations.

Must Haves:

* AWS certifications, highly desirable.
* Understanding of other public clouds such as Azure and GCP.
* Experience of scripting languages such as Python and NodeJS.
* Experience designing and deploying solutions using RedHat OpenShift.



If you like the sound of the role or know someone who would, please don't hesitate to get in touch with me! email r.durban@jeffersonfrank.com or click apply on the advert and I will get back to you ASAP.

AWS DevOps Engineer - Remote - Ansible - Terraform - Kubernetes

Are you a talented DevOps engineer looking for a new AWS opportunity? We are currently recruiting for a role in our tech hub in London for a newly evolving team creating innovative products.

We are looking for someone that is great at problem solving and is able to demonstrate their expertise in finding solutions, particularly within Amazon Web Services. You will be working in a small team on iterative processes, so must be able to adapt and work in a fast past environment.

For this role we would like to find out about your recent projects, demonstrating your skill and passion for tech.



Must Haves:

* AWS DevOps stack (CodeCommit / CodePipeline / CodeDeploy / EKS / ECS / CloudFormation)
* Open Source Stack (GitHub / Jenkins / Ansible / Terraform / Kubernetes)
* Ability to lead and assist the development team on ways to streamline SDLC process
* Build the CI/CD pipelines and produce best practices for CI / CD
* Experience in Cloudwatch / Cloudtrail / AWS X-ray
* Experience in configuring Internet Gateway / NAT Gateway / Route 53 / Bastion server



AWS | DevOps | Terraform | Ansible | Kubernetes | Remote Contract

If you like the sound of the role or know someone who would, regardless of experience, please don't hesitate to get in touch with me! You can call me direct on 0203 826 6676, email f.harman@jeffersonfrank.com or click apply on the advert and I will get back to you soon.



AWS | DevOps | Terraform | Ansible | Kubernetes | Remote Contract

Requirements:

SENIOR GO DEV

We want to emphasise that we don't expect you to meet all of the below but would love you to have experience in some of these areas.

* 5+ years experience working with GoLang

* Experience designing systems (Architecture and Design)

* Ability to work autonomously given high-level requirements

* Experience with relational databases (PostgreSQL, MySQL) and key-value stores (DynamoDB, Redis)

* Pride in readable, well-designed, well-tested software

* Experience with services / micro-service architecture

* Must be willing to work with a Ruby codebase (knowledge of Ruby a strong plus)

* Willingness to learn new languages & tools

Not mandatory, but would be nice to have:

* Experience with web architecture at scale (20krpm and above)

* Ruby and React knowledge will be a plus

* Experience solving logistical problems with software

* Experience with AWS

* Experience leading a team of developers

* Experience dealing with stakeholders

* Experience with DataDog and other metric/tracking systems

£550-600 a day

6 month contract

2x DevOps Engineers

90€ / hour

4 months + extension

Remote (The Netherlands)



Requirements

As DevOps Engineers, you are experienced with either GCP or Azure. You have both? Even better. Strong understanding of Terraform and IaC concepts. Overall, strong background/experience in IT security, encryption and understanding of cloud security concepts.

* Start date: Somewhere in the 2nd half of August. Latest in early September.
* Rate: 90€ / hour, can go a bit higher to 95 under conditions.
* Duration: 4 months with a possibility of extension for another 4 months.
* Languages: English
* The candidate need to be able to work with no Visa.
* Location: Mostly remote but they prefer candidates who are open to visit the client on-site (North Brabant area) sometimes if requested.
* Hiring process = 2 stages.

Reach out to me, Pavlos Diamantopoulos, at p.diamantopoulos@jeffersonfrank.com

We are partnering up with one of our trusted clients to assist them with bringing on board a skilled Node.js Developer with a primary focus around Node.js, AWS Lambda functions and using Serverless framework.

The engagement will be fully remote with a very high chance to extend long term, ideally you will be available in a few weeks but prepared to wait for the best option.

We are looking for a skilled developer that has excellent commercial experience with:

* Node.js (highly proficient)
* AWS services including SNS, SQS, Route 53, CloudWatch / API Gateway (highly proficient)
* Lambda Functions including Step Functions (highly proficient)
* Microservces achitecture
* Serverless framework

Nice to have's:

● Knowledge of Terraform, CI/CD piplelines

● Integrations experience (e.g. with Point of sale (POS) systems like Aloha and Micros, Deliveroo, Glovo or Flux.



The following is also an advantage:

● Working in an Agile framework before i.e. Scrum & Kanban

● Experience of QA/Test frameworks such as Selenium, load testing (Blazemeter), unit testing (Mocha/Chia) etc.



Other attributes desired:

● Team player

● Good communication skills

● Positive can-do attitude



Please get in touch with me at l.porter@jeffersonfrank.com to discuss further.

Senior Rust Developer Outside IR35!



Jefferson Frank are working with a leading organisation experiencing exponential growth, our client is currently hiring a strong, experienced developer. Interviews happening this week!



Blockchain | Developer | Rust | Web3 | Ethereum | DeFi



Key Points:



* Looking for a Rust Developers
* 6 Months Contract
* Well versed in Ethereum
* Well versed in Blockchain
* Well versed in DeFi
* Fully remote from Europe
* 2 years Minimum experience
* Outside IR35

If this role is tailored to you, get in touch with my details below...

☎️ 0203 879 8394

📧 t.roberts1@jeffersonfrank.com

Blockchain | Developer | Rust | Web3 | Ethereum | DeFi

AWS DevOps Engineer - Outside of IR35

Location: Remote

Rate: £400 - £475

Contract: 6 Month initial

A key client of ours is currently seeking an experienced AWS DevOps Engineer for 6 month initial contract and will be on-boarding someone ASAP.

Key skills:

* AWS DevOps
* CI/CD
* Cloudformation
* Docker
* AWS Serverless / Step Functions
* EC2 / Autoscaling
* AWS Lambda
* AWS ALB and NLB load balancers

If interested please reach out to j.scott@jeffersonfrank.com or call me on 0203 826 6769.

We are looking for an experience Python Developer to join on an initial 6 month contract, which will be extended. You will be joining a public sector organisation to improve a digital service as part of a multidisciplinary team.



Experience Required;

* Essential: exposure to CKAN (Comprehensive Knowledge Archive Network)
* CKAN (Comprehensive Knowledge Archive Network) - is an open-source open data portal for the storage and distribution of open data.
* Good Python experience needed.
* They need to be open to coming into the office once or twice a week (if required)
* Previous experience working within GDS (Government data services) would be ideal but not needed

Please send your CV to c.freeman@jeffersonfrank.com ASAP