Senior Full Stack Software Engineer

Company Overview Akvateq is a dynamic and innovative company committed to delivering cutting-edge solutions in the technology sector. We pride ourselves on fostering a collaborative and inclusive work environment that encourages creativity and growth. Job Title Senior Full Stack Software Engineer Location Karachi, Pakistan Years of Experience 4+ years Job Description

We are looking for a Senior Full Stack Software Engineer with proven expertise in designing, building, and operating large-scale distributed systems. The position demands deep technical ownership across the entire stack, with particular emphasis on backend architecture, database performance, and cloud-native infrastructure. Core Responsibilities • Architect and implement end-to-end systems handling high throughput and low latency requirements

• Design scalable microservices and monolithic applications based on product needs and traffic patterns

• Lead system design and scaling strategy for features handling millions of contacts, activities, workflows, and automation rules

• Define service decomposition, API contracts, event schemas, and data migration strategies

• Database schema design, indexing strategies, query optimization, and sharding/replication topologies

• Build and maintain RESTful and GraphQL APIs with strict backward compatibility and versioning

Required Technical Qualifications • Minimum 4-5 years of hands-on software engineering experience in production systems

• Expert-level proficiency in at least one backend technologies (Node.js, Nest.js, Python, or equivalent) and willingness to work across multiple languages

• Very strong backend development track record: building high-performance APIs, background job systems and event-driven architectures (Kafka, RabbitMQ or BullMQ)

• Deep expertise in relational databases (PostgreSQL preferred) – query execution plans, partitioning, logical replication, connection pooling

• Solid experience with NoSQL systems (Redis, DynamoDB, or MongoDB) and caching strategies (write-through, read-aside, TTL policies)

• Advanced knowledge of system architecture: Rate limiting and distributed transactions

• Hands-on experience with major cloud providers (AWS and/or GCP mandatory): Multi-region deployments, serverless (Lambda/Cloud Functions), managed databases, and cost optimization

• Expert in design patterns (creational, structural, behavioral) and architectural patterns. Proven ability to choose the right pattern, enforce it, and mentor the team on correct usage vs anti-patterns.

Nice to Have • Experience with search engines (OpenSearch/Elasticsearch) and full-text relevance tuning

• Contributions to open-source projects or public design documents

• Prior work logistics domains

What We Offer • Competitive salary based on your experience and expertise..

• Friendly work culture with flexible hours.

• Opportunities for professional growth and technical upskilling.

• A modern tech stack, supportive team culture, and open communication.

• Paid time off, and other employee perks.