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For CDI & Freelance In Oxfordshire

    Ref: SLP9283254JFI_1620668054

    Server Lead Programmer

    England, Oxfordshire, Oxford

    • 60000 to 70000 GBP
    • Developer Role
    • Skills: AWS, C++, SQL/NoSQL, API's
    • Seniority: Senior

    Description du poste

    Server Lead Programmer - UK wide

    Salary up to £70k DOE

    1 day per month in London office

    An independent games studio, who are the makers of an award-winning open world game and also operate a community led developer network, are expanding further after heavy investment!

    What You'll be doing

    You'll join their highly talented code team and will be responsible for developing and enhancing online-backend systems for games.

    Your responsibilities will include:

    * Developing reliable and high performance online services for our games
    * Making key decisions on server side architecture
    * Building and managing a small server side team of programmers
    * Planning and organising tasks, to deliver features to a schedule
    * Providing advice to the rest of the team on server side issues
    * Working with the other Leads to coordinate tasks and technical implementation, based on the current roadmap. This will include working with other disciplines such as Design and QA
    * As a senior team member you'll help mentor junior team members and plan their skills development
    * Creating and maintaining technical documentation as required

    Required Experience and Skills

    * Professional Game Programming Experience (at least 3 years) including 1 or more shipped games
    * Proven ability to organise and coordinate a small team of programmers
    * Working knowledge of C++, NodeJS, SQL/NoSQL, Docker and orchestration software such as Marathon or Kubenetes
    * Experience with designing around databases, replication, reliable/unreliable protocols, security, high throughput requirements and stateless vs stateful server design
    * Knowledge of the client-server model, Game API design, load balancing, analytics and 3rd party integrations
    * Conceptual grasp of user generated content, persistent environments, large simulated worlds

    The studio offers a range of benefits for all our employees:

    * For cycling fans our Cycle to Work Scheme enables employees to save money and spread the cost of a new bike.
    * We offer a generous family policy including 8 weeks fully paid paternity leave and 6 months fully paid maternity leave.
    * To support our team's wellbeing we offer an Eyecare scheme, Employee Assistance Programme (which includes mental health support) and trained Mental Health First Aiders.
    * Great central London office location near to several excellent food markets and lots of great pubs and restaurants. The office also comes equipped with free fruit and refreshments, an arcade machine and table football.
    * We love to socialise and celebrate together and hold regular staff socials (always with non-alcoholic options available) including our well-known Summer and Christmas parties. We also encourage staff to take part in lunchtime clubs.

    Contact me on or 0191 814 7785 for further detail.

    Ref: JFISASA1507_1626373245


    England, Oxfordshire

    • 400 to 500 GBP
    • Administrator Role
    • Seniority: Mid-level

    Description du poste

    SysAdmin (Security) | Contract | 100% Remote

    Jefferson Frank are currently on the lookout for a security- aware SysAdmin for a leading name in the internet space. This is an inside IR35 contract, 3 months initially with scope for extension moving forward.


    * Ensure the operational and production environment is secure.
    * Design and build security improvements t existing infrastructure estate including RHEL6/7/8 servers, VMware virtualised environments, 3par storage, f5 load balancers and HPE compute clusters.
    * Participate within routine patching and own the rollout of security patches to mitigate vulnerabilities.
    * Proactively manage security backlog.
    * Identify and design security requirements across new systems.
    * Develop technical solutions and integrate new security tools that will mitigate against vulnerabilities.
    * Patch and upgrade key systems across our operating systems, storage, compute and the rest of our core infrastructure.
    * Peer-review changes from team members.
    * Take a security-first approach to systems and ensure any vulnerabilities reported are resolved within agreed SLAs and timeframes.
    * Server and network hardening.
    * Work within an ISO 27001 framework to secure and preserve vital production services.

    Required Skill & Experience

    * Knowledge of security standards, common attack vectors and mitigations.
    * Excellent knowledge of Linux (preferably RHEL) and Windows.
    * Experience securing large-scale infrastructure operating across multiple data centres.
    * Able to identify and improve the security posture of AWS-hosted services.
    * Comfortable interacting with and patching VMware v6.x environments.
    * Knowledge of ISO27001.
    * A thorough understanding of internet, networking and other infrastructure technologies.
    * Be incredibly motivated and be an ambassador for change.
    * Comfortable scripting using an appropriate language (e.g. Bash, Python, shell, etc)

    If this sounds like you, please apply below or send your CV to

    Ref: 23062021EH_1624461177

    DevOps Engineer - Remote- c.£75K

    England, Oxfordshire, Oxford

    • 50000 to 85000 GBP
    • DevOps Role
    • Skills: AWS, DevOps
    • Seniority: Mid-level

    Description du poste

    DevOps Engineer- Remote- c.£75K

    My client is a leading company focusing on domain name registry and internet infrastructure. They are looking for a DevOps Engineer to join their Internet Engineering & Operations team. Ideally you will have experience as a DevOps engineer or you are looking to take your current career into the DevOps space.

    About the position:

    You will work with software developers to release code and new applications whilst building CI pipelines and streamline the software delivery process. You will architect environments for automation and reliability and improve production and deployment capabilities. You will work closely with cross functional teams across the company on various projects to ensure operational excellence.

    You will have:

    * Experience with CI/CD tools
    * Experience with configuration management tools such as Ansible, GIT and Terraform
    * Kubernetes and Docker experience
    * Experience with AWS
    * Scripting Languages such as Java and Python

    My client offer a competitive salary D.O.E and excellent benefits including a 10% performance bonus, 30 days holiday allowance, health care, pension scheme and more.

    If you are interested in applying for this role or want to find out more information please get in touch with myself via email at or via mobile on +44 (0)191 255 1430 (ext 1430), or apply via the apply link attached to this advert.

    Jefferson Frank is the Amazon Web Services (AWS) recruiter of choice. We work with organisations worldwide to find and deliver the best permanent and contract AWS DevOps, Big Data, IaaS and PaaS, and AWS Security professionals on the planet. For more information, visit

    Ref: SCJD304942JFI_1624694418

    Cloud Java Developer

    England, Oxfordshire, Oxford

    • 45000 to 65000 GBP
    • Developer Role
    • Skills: Java, Spring, AWS, Agile
    • Seniority: Mid-level

    Description du poste

    Mid and Senior Cloud Java Developers

    FULLY REMOTE UK wide up to £65k DOE

    With other benefits including profit share, pension, private medical, flexible working policy and more

    My client utilises best of breed Java toolsets focused on Micro Services Architectures, powerful front- and backend frameworks, RESTful services, and everything from NoSQL databases like MongoDB and Hadoop, high-performance data grids like HazelCast to multi-node relational systems.

    Developers will be responsible for the delivery of projects in an Agile way according to Functional and None Functional Requirements Specifications. You will be involved in technical leadership within a team to co-ordinate and deliver scalable, secure solutions in line with good industry software engineering practices (code quality, CI/CD, OWASP, TDD, SOLID, DRY etc).

    You will take technical ownership for a product or software components, covering design, estimation, shaping and functional/non-functional requirements. This will involved design, developing and maintaining cloud-based software applications using Java and associated frameworks (e.g., Spring, Groovy, Jersey, JUnit, Guava, Hibernate etc).

    * Experience in developing RESTful microservice architectures.
    * Experience in developing on Public Cloud such as AWS or Azure
    * Experience in delivering software using Agile.
    * Collaborate and liaise with other eam members, customer stakeholders and end-users during the development lifecycle - e.g., PMs, BAs, Tester, Product, Platform etc
    * Clearly communicate technical designs in conversation, documentation, and presentations to stakeholders of various technical abilities.
    * Provide effective knowledge transfer to team members and customers.

    Contact me on 0191 814 7785 or email to apply or discuss further.

    Ref: 02062021LC_1622646715

    QA Engineer

    England, Oxfordshire, Oxford

    • 55000 to 65000 GBP
    • Engineer Role
    • Skills: Quality Assurance, Java
    • Seniority: Mid-level

    Description du poste

    QA Engineer - Remote (Oxford) - £60-65K - Internet

    QA Engineer - Remote (Oxford) - £60-65K - Internet

    Our client, a company built on innovation and collaboration within IT, is on the lookout for an experience QA Engineer to join the team in building automation frameworks from scratch.

    Responsibilities will include:

    * Discuss and identify automation scope within the business
    * Someone to provide direction within the business
    * Stays updated with tool and trends
    * Leads the automation team, allocates work and measures progress
    * Owns test infrastructure, automation frameworks, automation backlog and automation tooling
    * Engage with the business as well as sharing knowledge and best practice

    They'll need someone with:

    * Strong leadership skills
    * Experience of building automation frameworks from scratch
    * Coding skills in Java (8+10 currently used)
    * Ability to convert manual test cases into Automation
    * Experience using test management tools e.g. JIRA, Zephr, X-Ray
    * Ideally Agile testing experience also

    The company has a focus on using tech for good, using profits for a purpose by helping millions of young people. The basic salary includes a 10% bonus, which they are proud to annouce pays out practically 100% of the time.

    The client is actively looking for these candidates and will be interviewing within 48 hours. If you'd be keen to hear more, simply send an email to or give me a call on 0203 808 7310.

    Jefferson Frank is the Amazon Web Services (AWS) recruiter of choice. We work with organizations worldwide to find and deliver the best permanent and contract AWS DevOps, Big Data, IaaS and PaaS, and AWS Security professionals on the planet. For more information, visit