Senior C Developer

Description

You will be a hands-on engineer on a large datacenter migration that moves a long-running payments platform from UNIX/AIX to Red Hat Linux, with applications refactored for AWS.

You will analyse, refactor and consolidate C applications, using solid systems knowledge to work out how software behaves and to deliver independently.

After the migration, there is a chance to take on ongoing BAU, project and client-integration work on the same platform.

The company has worked for over 20 years to build platforms and digital experiences for leading brands across many industries, combining engineering skill with a people-first approach.

Responsibilities

• Design, estimate and build technical solutions for applications of medium to high complexity.
• Take part in every phase of the application development lifecycle.
• Work with stakeholders to clarify requirements, processes, architecture and priorities.
• Recommend IT standards, tools and practices, including DevOps, to produce well-built software.
• Suggest improvements and raise risks and issues in development work.
• Review work produced by other developers on the team.
• Pick up new technologies, practices and tools when they suit the project.
• Share what you learn from projects with others.
• Be responsible for the output of others and decide how resources are allocated.
• Shape the thinking of the team, customers and suppliers.
• Make decisions that affect project success and team goals.
• Propose and design solutions on your own.
• Explain solutions clearly to both technical and non-technical stakeholders.

Requirements

• At least 5 years of hands-on software development, with proven, strong skill in plain C.
• Strong UNIX background across AIX and Red Hat Linux, including a record of porting and refactoring applications from AIX to Red Hat.
• Shell scripting in ksh and Bash for building, running and deploying across UNIX systems.
• Good working knowledge of the C build and debug toolchain: Make and Makefiles, gcc, gdb and core-dump analysis.
• Experience refactoring and consolidating applications, including redesign during a migration.
• A self-directed approach, with the ability to deliver independently and own work from start to finish.
• Clear communication with both technical and non-technical stakeholders.
• SQL and relational databases such as DB2 and Oracle, including embedded SQL (ProC / ESQL/C) in C applications.
• Sockets, TCP/IP and inter-process communication (IPC) for integrations and messaging.
• Awareness of porting issues between AIX on POWER and Linux on x86, such as endianness, data type sizes and compiler differences.
• Knowledge of payments and financial transaction processing, for example ISO 8583, card and transaction switching, or PCI DSS.
• Git and GitHub. The project is moving its source control from SCCS to GitHub.
• Exposure to Harness or a similar enterprise CI/CD tool such as Jenkins.
• Familiarity with AWS, since the migrated applications will run in the cloud while the databases stay in a payments datacenter.
• Exposure to Linux administration, Docker or containers, or Terraform and infrastructure as code on the cloud target.
• Experience integrating with external clients and third-party systems.

Conditions

Hybrid working with flexible hours.

Hiring is based on merit, skills, qualifications and potential, and adjustments are available during recruitment on request.

Benefits

• Competitive salary package, share plan, company performance bonuses, value-based recognition awards and a referral bonus.
• Career coaching, global career opportunities, non-linear career paths and internal development programmes for management and technical leadership.
• Complex projects, rotations, internal tech communities, training, certifications, coaching, online learning subscriptions, pass-it-on sessions, workshops and conferences.
• Hybrid work, flexible hours and an employee assistance programme.
• A global wellbeing programme and access to wellbeing apps.
• Global internal tech communities, hobby clubs and interest groups, inclusion and diversity programmes, and events and celebrations.