Senior C Developer

Description

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

Your main work is analysing, refactoring and consolidating C applications, using solid systems knowledge to understand how they behave and to deliver with minimal supervision.

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

The company consults and partners with leading brands across industries to build platforms and digital products, and has done so for over two decades.

Responsibilities

• Design, estimate and build technical solutions for medium and high complexity applications.
• 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-engineered software.
• Suggest improvements and raise risks and issues linked to development work.
• Review the work of other developers on the team.
• Learn and apply new technologies, practices and tools where they suit the project.
• Share what you learn from projects with others.
• Be accountable for others' work and decide how resources are allocated.
• Influence the team, customers and suppliers.
• Make decisions that affect project outcomes 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 clearly demonstrable depth in plain C.
• Strong UNIX skills on AIX and Linux (RedHat), including a record of porting and refactoring applications from AIX to RedHat Linux.
• Shell scripting in ksh and Bash for build, run and deployment tasks across UNIX systems.
• 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 autonomously and own work from start to finish.
• Clear communication, able to explain solutions to technical and non-technical audiences.
• SQL and relational databases such as DB2 and Oracle, including embedded SQL in C (ProC and ESQL/C).
• Sockets, TCP/IP and inter-process communication for application integration 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, as 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 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

Work is hybrid, with flexible working hours.

Applicants from all backgrounds are welcome, and hiring is based on merit, skills and potential.

Benefits

• A competitive salary package, a 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.
• Learning through complex projects, rotations, internal tech communities, training, certifications, coaching, online learning subscriptions, pass-it-on sessions, workshops and conferences.
• An employee assistance programme.
• A global wellbeing programme and access to wellbeing apps.
• Global tech communities, hobby clubs, interest groups, inclusion and diversity programmes, and events and celebrations.