Senior C Developer

Description

You will be a hands-on engineer on a large datacenter migration, moving a long-running payments platform from UNIX/AIX to Linux (RedHat), with applications refactored for AWS.

You take ownership of analysing, refactoring and consolidating C applications, using solid systems knowledge to understand how the software behaves and working independently.

After the migration, there is room to move into ongoing BAU work, projects and client integrations on the same platform.

The company has spent over two decades using technology to drive change. It combines engineering skill, industry knowledge and a people-focused approach to build digital platforms and experiences for major brands across sectors.

Responsibilities

• Design, estimate and build technical solutions for applications of medium to high complexity.
• Take part in every phase of the application development lifecycle.
• Help stakeholders clarify requirements, processes, architecture and priorities.
• Advocate IT industry standards, tools and practices, including DevOps, to produce well-engineered software.
• Suggest improvements and raise risks and issues linked to development work.
• Review work produced by other members of the development team.
• Pick up new technologies, practices and tools when they suit the project.
• Share what you learn from projects with others.
• Manage others' work 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 initiative.
• Explain solutions clearly to both technical and non-technical audiences.

Requirements

• 5+ years of hands-on software development, with proven depth in plain C.
• Strong UNIX skills across AIX and Linux (RedHat), including porting and refactoring applications from AIX to RedHat Linux.
• Shell scripting in Korn shell (ksh) and Bash for build, run and deployment tasks across UNIX environments.
• Confident with the C build and debug toolchain: Make/Makefiles, gcc, gdb and core-dump analysis.
• Experience refactoring and consolidating applications, including redesign during a migration.
• Self-directed, comfortable working autonomously and owning work end to end.
• Good communicator who can explain solutions to technical and non-technical stakeholders.
• SQL and relational databases (DB2, 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 (POWER) and Linux (x86), such as endianness, data-type sizes and compiler differences.
• Domain knowledge of payments and financial transaction processing, for example ISO 8583, card and transaction switching, or PCI DSS.
• Git and GitHub, as the project is moving 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 with databases hosted in a payments datacenter.
• Exposure to Linux administration, Docker or containerisation, 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.

The company is an equal opportunity employer, and hiring decisions are based on merit, skills, qualifications and potential.

Benefits

• A competitive pay package, share plan, performance bonuses, recognition awards for living the company values, 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.
• Employee assistance programme, a global wellbeing programme and access to wellbeing apps.
• Hobby clubs, interest groups, inclusion and diversity programmes, and events and celebrations.