Software Engineer - Backend (Mid-Level, Remote)
Lucidya
- Location
- Egypt, India, Pakistan, Poland, Jordan
- Job Type
- full-time
- Salary
- Unknown
- Posted
- September 9, 2025
Job Description
Lucidya is an AI-native company transforming how brands understand and engage with their customers through cutting-edge technologies purpose-built for Customer Experience (CX). With AI at the core of our platform and operations, we are redefining how businesses drive growth, loyalty, and insight at scale.
We are looking for Backend Engineers to join our team. You will join a team of highly qualified engineers to continue the innovation and development of our product which uses Machine Learning & Big Data technologies to analyze content from several data sources.
As a developer, you will be working on the backend of our product Lucidya which is built using industry’s latest technologies such as Redis, Postgres and Cassandra and developing APIs using Python and Ruby on Rails. The job also includes DevOps tasks from server setup to maintenance and recovery.
You will work directly under the Engineering Manager in an agile yet demanding environment. We expect you to be a fast learner to adapt those technologies mentioned above fast.
Lucidya offers a result-driven, fun, and dynamic environment full of challenges, We look for very talented candidates with strong programming skills.
Key Tasks & Responsibilities
- Rapidly develop next-generation scalable, flexible, and high-performance systems.
- Design, develop, test, deploy, maintain and improve software (backend and databases in particular)
- Manage individual project priorities, deadlines and deliverables.
- DevOps tasks
- Contribute to the growth of Lucidya through interviewing, on-boarding, or other recruitment efforts
Requirements
- BA/BS or or Masters degree in Computer Science, Software Engineering, IT or equivalent practical experience
- +3 years of experience
- Strong knowledge in SQL and noSQL databases such as (Redis , Postgress or Cassandra)
- Fluency in Python and Ruby on Rails.
- Knowledge in Web servers and Web application servers (e.g., Apache, Jetty, Tomcat, IIS)
- Knowledge in code repository like Git
- Ability to multi-task and adapt to shifting priorities, demands, and tight timelines
- Database design skills
- Perfect quality code
- Excellent organizational skills and proven analytical, planning, problem solving skills
- Full stack with background in ReactJS is a plus
🎯 Who is this job for?
This role is ideal for a Mid-Level Backend Engineer with 3+ years of experience in Python, Ruby on Rails, and working with SQL/NoSQL databases like Redis, PostgreSQL, or Cassandra. Candidates should be familiar with DevOps tasks, web servers, Git, and able to work in an agile, fast-paced environment. Full-stack experience with ReactJS is a plus.
💬 Potential Interview Questions
-
How would you model high-ingest, time-ordered data in Cassandra?
Use a partition key that groups by tenant and time bucket (e.g., day) with clustering on timestamp to keep writes sequential; avoidALLOW FILTERING, use TimeWindowCompactionStrategy, and consider TTL for retention. -
When would you use JSONB in PostgreSQL, and how would you index it?
Use JSONB for semi-structured fields that change often; add GIN indexes on JSONB paths and combine with BTREE indexes for frequent filters/sorts to keep queries fast. -
What are effective strategies to prevent cache stampede with Redis?
Apply request coalescing/locks, randomized TTLs (“jitter”), stale-while-revalidate, and per-key mutexes; ensure fallbacks and circuit breakers on cache misses. -
How do you design a REST API that supports pagination, filtering, and sorting?
Prefer cursor-based pagination for large datasets, document query params consistently, validate/whitelist filters, and ensure stable sort keys with matching DB indexes. -
How would you implement reliable background processing in Rails and Python?
Use Sidekiq (Rails) or Celery/RQ (Python) with retries and exponential backoff, idempotent job handlers, dead-letter queues, and outbox patterns to avoid lost messages. -
What roles do web servers vs app servers play in deployments?
Reverse proxies like Nginx/Apache/IIS terminate TLS, handle static assets, and routing; app servers (Puma/Passenger for Rails, Gunicorn/Uvicorn for Python) execute app code via Rack/WSGI/ASGI. -
How do you achieve zero-downtime deployments and safe rollbacks?
Use blue-green or rolling updates with health checks and readiness probes, database migrations that are backward-compatible, and versioned artifacts with one-click rollback. -
How would you monitor and troubleshoot production services end-to-end?
Emit structured logs, metrics, and traces (e.g., OpenTelemetry), set SLIs/SLOs with alerting, and use log correlation plus flame graphs/profilers to find hot spots. -
What is your approach to database backup and disaster recovery for Postgres and Cassandra?
For Postgres, enable WAL archiving and PITR with tested restores; for Cassandra, usenodetool snapshotwith incremental backups, verify repair schedules, and practice restore drills. -
How do you ensure API and data security across services?
Enforce TLS everywhere, use OAuth2/OIDC with short-lived tokens, validate inputs, apply RBAC/ABAC, set rate limits, and protect cross-origin access with proper CORS policies.
📋 Job Summary
Netskope, a global leader in cloud security, is hiring a Sr/Staff Software Engineer for its Risk Insights team in Bengaluru. You'll design and build scalable services in Python, Go, or C++ to process high-volume data, power risk assessments, and manage cloud-managed appliances. The role offers ownership, technical leadership, and impact in a distributed systems environment with Docker, REST APIs, CI/CD, and cloud technologies. Join a fast-growing, collaborative team reshaping network and data security for the cloud era.