Designing and developing features and improvements to our products, while taking non-functional requirements like performance, reliability, and security into account.
Maintaining and improving existing Perl-based systems , ensuring stability, maintainability, and operational reliability.
Testing and documenting your work to a high standard with strong attention to detail .
Taking responsibility for system maintenance, operational stability, and incident prevention .
Responding to issues with a sense of urgency and ownership , identifying root causes and implementing long-term fixes.
Identifying scaling bottlenecks and resolving them, while being conscious of running costs.
Collaborating with other engineering teams to ensure services you own are well-integrated with their services.
Working with cross-functional stakeholders to help propose, design and implement solutions to meet business needs.
Working independently and proactively , identifying opportunities to improve systems and processes over time.
Where appropriate, contributing to incremental improvements or new components using technologies such as Go or TypeScript .

Experience developing and maintaining production backend systems , ideally including Perl or similar languages.
The ability to work independently and take ownership of services and systems.
Strong attention to detail , particularly when working with production systems.
A proactive mindset with a sense of urgency when addressing operational issues or incidents .
Experience working with SQL databases (such as MySQL or MariaDB), including schema design for both OLTP and OLAP workloads, and writing and optimising complex queries.
Familiarity with common Unix command line tools (such as sed, grep, and AWK) and shell scripting.
Comfortable packaging software using a Linux package manager , such as RPM or dpkg.
Comfortable using configuration management tools , such as Puppet.
Experience using Amazon EC2, S3, RDS, and SQS , or equivalent services at other cloud providers.
Experience with version control systems , such as Git, and CI/CD pipelines.
A good understanding of computer networking technologies , including TCP, IPv4, IPv6, DNS, HTTP, and TLS.
Good written and verbal communication skills, with the ability to convey technical concepts clearly and concisely.

Hybrid working: please note that our expectation is two days per week in the office , with the flexibility to agree which days with your manager and vary these from time to time as needed .
Minimum of 33 days holiday per annum (incl. public holidays)
Spot Bonus for outstanding performance.
Pension scheme membership with 5% employer contributions + NI savings
Private health cover, including access to a private GP service
Equity tracking scheme, so you can share in the rewards of Netcraft's long-term success (eligibility criteria apply)
Comprehensive wellness and support provisions
Enhanced family leave provisions
Life Assurance
Two days paid Volunteering Leave per year
Free meals, drinks and snacks provided daily in the offices
Regular social events such as board game nights, big summer party and annual kick-off
Inclusive culture and environment, where you’ll feel genuinely valued and respected;
A tax-efficient cycle to work scheme.

Back End Engineer

Key skills