Senir Software Engineer

Zohaib Nasir Senior Software Engineer

*************@*****.*** +44-164******* Middlesbrough, UK

Right to work in the UK: No sponsorship required linkedin.com/in/zohaib-nasir-331184362 github.com/forgenmauo

SUMMARY

Senior Software Engineer with 10 years of experience delivering UK B2B SaaS products across eProcurement, IT asset management and high-volume talent acquisition. Strong in API design, workflow automation, data-intensive platforms, search, integrations and secure multi-tenant architecture. Hands-on with TypeScript, Node.js, PHP, Python, C#/.NET, SQL, AWS and event-driven systems; trusted to lead technical delivery, improve production reliability and mentor engineers. EXPERIENCE

Senior Backend Engineer

Oboloo

05/2023 – Present London, UK (Remote)

•Led backend delivery for Contract Repository Control, moving contract records, ownership, documents and key dates from disconnected files and spreadsheets into one governed system.

•Designed TypeScript and Node.js APIs plus PostgreSQL models for contract status, taxonomy, owners, linked suppliers, termination clauses, notice periods and renewal decisions.

•Built bulk-import and validation workflows for contract metadata and documents, including field mapping, duplicate handling and actionable error reporting for migration teams.

•Implemented automated monitoring of end dates, notice periods and document expiries, using event- driven AWS processing to deliver timely notifications without duplicate reminders.

•Developed document request, upload and approval flows with version history, role-based access and complete audit records for internal users and authorised supplier contacts.

•Improved contract search, dashboard and renewal-query performance; strengthened tenant isolation, CI/CD controls, automated tests and production observability.

•Mentored engineers through architecture and code reviews while translating contract-management rules into clear, maintainable platform behaviour. Senior Backend Engineer

Certero

06/2021 – 05/2023

Warrington, UK (Remote)

•Developed backend services for Enterprise Software Asset Management within the Certero Unified Platform, creating a reliable view of installed software and licence exposure across hybrid estates.

•Built C#/.NET and Python ingestion services that normalised agent and agentless inventory from Windows, macOS and Linux devices before loading governed SQL Server records.

•Integrated Certero's Software Recognition Database to map raw installation evidence to meaningful products, versions and editions while retaining traceability to the source inventory.

•Designed entitlement-import and reconciliation workflows that cleansed purchase records, linked licences to recognised software and produced effective licence-position evidence.

•Delivered REST APIs, dashboards and alerts for unidentified software, unused installations, licence shortfalls and compliance risk, replacing static spreadsheet analysis with live reporting.

•Improved batch throughput, query performance, automated testing and release controls; strengthened RBAC, encryption, secrets management and immutable audit logging. Senior Backend Engineer

Tribepad

09/2018 – 06/2021 Sheffield, UK (Hybrid)

•Contributed to the rapid delivery of a dedicated vaccination recruitment platform and custom careers site, launched in two weeks during the national COVID-19 response.

•Built PHP backend workflows for vaccinator roles, candidate applications, eligibility questionnaires, supporting documents and auditable application-status transitions.

•Developed careers-site and partner APIs that kept candidate, vacancy and compliance data synchronised with the Tribepad ATS.

•Implemented integrations for identity and compliance checks using idempotent processing, retries and failure recovery.

•Optimised MySQL queries, Elasticsearch indexing and Redis caching to handle bursts of high-volume application traffic.

•Strengthened candidate-data security through role-based access, document encryption, GDPR-aware retention and administrative audit trails.

•Led code reviews, release-readiness checks and incident follow-up while supporting a platform that screened and supplied more than 17,000 vaccinators. Backend Engineer

Tribepad

05/2015 – 09/2018 Sheffield, UK

•Developed PHP backend services for vacancies, candidate profiles, applications, questionnaires, interview scheduling, offers and references.

•Built REST APIs for external applications, job creation, careers websites and integrations with customer HR and payroll systems.

•Improved candidate and vacancy search through Elasticsearch indexing, MySQL query optimisation and Redis caching.

•Developed asynchronous processes for job-board publishing, candidate communications and external-system data exchanges.

•Introduced retry handling, failure tracking and operational monitoring for background jobs and third-party integrations.

•Expanded platform controls for customer configuration, delegated permissions, reporting and recruitment-compliance requirements.

•Added automated tests and supported production releases, database migrations and customer implementation activities.

Junior Software Engineer

Tribepad

05/2014 – 09/2014 Sheffield, UK

•Contributed to early ATS features for vacancies, candidate records, applications, recruiter notes and interview workflows.

•Built and maintained PHP, JavaScript and MySQL functionality across recruiter and candidate-facing interfaces.

•Developed internal administration tools for customer accounts, candidate records and support investigations.

•Resolved defects across application forms, permissions, search, activity feeds and email communications.

•Assisted with automated testing, database migrations, release verification and production-issue investigation.

•Progressed to Backend Engineer after developing a strong understanding of the platform, recruitment workflows and production support.

EDUCATION

Bachelor's degree in Computer Science

University of Bristol

2011 – 2015

SKILLS

Languages

TypeScript, JavaScript, Python, PHP, SQL, Go, C#

Backend

Node.js, Express.js, Symfony/Laravel components, .NET, FastAPI, REST, GraphQL, microservices Frontend

React, Material UI, Next.js, HTML, CSS

Cloud / Platform

AWS Lambda, EventBridge, DynamoDB, S3, SQS, Step Functions, Glue, Athena, IAM, Docker, Kubernetes, Terraform, AWS CDK, SST

Databases

PostgreSQL, DynamoDB, Redis, Elasticsearch, MySQL

AI / ML

LLM integrations, AI-assisted search, embeddings, RAG patterns, supplier intelligence, recommendation workflows

DevOps / Observability

GitHub Actions, CI/CD, Sentry, Lumigo, LogRocket, Datadog, CloudWatch Security / Compliance

RBAC, IAM, audit logging, GDPR, SOC 2 readiness, encryption, tenant isolation, secure APIs Methods

Agile, Scrum, code review, architecture review, mentoring, cross-functional collaboration

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