Citi Group Senior Application Developer - Flink VP 

United Kingdom, England, London 

301434233

The Flink Technology Team is primarily based in London, consisting of senior Java developers and dedicated support staff. This is a high-profile, high-priority project, now moving from the proof-of-concept to architecture and full-scale development. This is not a traditional 'embarrassingly parallel' grid project (e.g. DataSynapse/Symphony risk grid): we are focused on nonlinear logic that requires newer tools and a more sophisticated approach.

• Design and implement components of a compute platform, based on Apache Flink, that provide a productive and high-performance basis for Risk Technology app development. These are challenging flows that are not trivial to move onto a distributed platform.
• Independently research and develop solutions to performance, scaling and deployment challenges, while in close with our Flink expert team. This includes use of Ignite, Kafka, Zookeeper and other OS components as required.
• Refactor selected existing business logic from a local threading model to a distributed parallelism model.
• Provide input, problem diagnosis and a general dev perspective to our ops and devops staff as they design and deliver infrastructure and process change.
• Act as an advisor, coach and troubleshooter during large-scale onboarding of functional development teams to the new distributed risk platform.
• When required, reach out to teams across the Optima group and Citi, to obtain information or provide expertise. Project a positive and professional impress of the Platform Team to software engineers, business analysts and support staff.

What you will bring to the role:
Technical Skills
• Extensive Core Java experience developing large-scale Enterprise software.
• Good knowledge of local concurrency (Java threads) and Java internals (class loading, memory management).
• Experience with a distributed parallel system: ideally Flink or Spark, but Akka Cluster, in-cache processing in Ignite/Hazelcast/Coherence, REST-based microservices at scale, or queue-based concurrency will be considered.
• Experience with a Distributed Caching framework such as the above or Gemfire, Redis or equivalent.
• Experience with an Agile software development process: in particular test strategies that can support rapid change on mission-critical software.
• Databases: at least basic knowledge of SQL/RDBMS and NoSQL (ideally MongoDB).
• Familiarity with Linux environment including scripting skills.
• SDLC/Dev Ops - Git/BitBucket, CI/CD pipeline frameworks such as Jenkins, SonarQube, JIRA, Bitbucket.

Competencies
• Excellent written and spoken communication skills (English).
• Ability to work independently or in close collaboration with other senior developers.
• Deep computer science knowledge: interest in algorithms, networks and optimisation.
• Able to work under pressure when required: this is an infrastructure dev team, but some crunch and reprioritisation is inevitable.
• A self-starter and has the thirst to continually improve and develop.

Bonus points for
• Experience with mentoring and developing with more junior team members to ensure they can deliver at the highest quality.
• Experience working in the Capital Markets domain.
• Understanding of Derivatives and Risk management
• Experience re-engineering complex franchise critical applications to new platforms.
• Cloud computing technologies with practical experience working with containers, microservices and large datasets (Docker, Kubernetes).

Qualifications/Education
• Bachelor’s/Master’s degree in Computer Science/Engineering/STEM subject or experience in a similar role.

By joining Citi London, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:

• Generous holiday allowance starting at 27 days plus bank holidays; increasing with tenure

• A discretional annual performance related bonus
• Private medical insurance packages to suit your personal circumstances
• Employee Assistance Program
• Pension Plan
• Paid Parental Leave
• Special discounts for employees, family, and friends
• Access to an array of learning and development resources

Time Type:

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