Database Developer / Lead Database Engineer

Bengaluru, Karnataka · Bengaluru · Posted Oct 12, 2026

At a glance

Avathon is hiring a Database Developer / Lead Database Engineer to focus on building core database technology ground-up rather than application-level software.
This high-impact role sits at the intersection of low-level systems programming, distributed storage, and query engine optimization.
You will lead the architecture, design, and deployment of engine-level database systems across high-performance, large-scale environments.

Design and implement storage layers using LSM Trees, B-Trees, RocksDB, LevelDB, LMDB, WiredTiger, or custom engines.
Build efficient key-value storage layouts, secondary/composite indexes, inverted indexes, spatial indexes, and vector indexes.
Design high-throughput pagination, cursor mechanics, and large-scale dataset iteration patterns.
Optimize write/read amplification, compaction strategies, caching layers, and Bloom filters.
Implement Raft or Paxos consensus, data partitioning/sharding strategies, and multi-node replication.
Architect resilient systems capable of automated leader election, failure recovery, dynamic retries, and partition handling.
Integrate service discovery, distributed tracing/observability, zero-downtime rolling upgrades, back-ups, and storage format compatibility layers.
Work with MVCC, Snapshot Isolation, Optimistic Concurrency Control (OCC), and Two-Phase Locking (2PL).
Implement WAL (Write-Ahead Logging), crash recovery guarantees, deadlock detection, and distributed transactions (2PC).
Write production-grade C++17/20, Rust, Java, or Scala code focused on low-overhead memory management, profiling, and benchmarking.

Hands-on experience with JanusGraph/Titan, Neo4j, TigerGraph, Amazon Neptune, Dgraph, or a custom in-house graph engine.
Strong understanding of graph storage models, traversal algorithms, graph indexing, and distributed graph processing.
Familiarity with graph query languages such as Gremlin, Cypher, SPARQL, or SQL/PGQ.
Knowledge of vector search techniques including HNSW, IVF, and ANN.
Knowledge of spatial indexing including R-Tree, H3, S2, and Geohash.
Familiarity with inverted indexes, full-text search, and multi-column composite structures.
Proficiency in systems-level languages such as C++17/20 or Rust, or distributed services languages like Java or Scala.
Deep experience with performance profiling, memory management, low-level debugging, and automated benchmarking.
For Senior or Lead designations, ability to lead technical design, write RFCs/design docs, and establish system architecture.
For Senior or Lead designations, ability to mentor engineers, conduct code reviews, and drive technical standards.

Active open-source contributions to database, storage, or graph projects.
Familiarity with foundational research papers (e.g., Spanner, Dynamo, Percolator, Calvin, Aurora, TAO, Pregel).
Experience with change data capture (CDC), streaming systems, or materialized view maintenance.
Background in compiler design, query language parser generation, or multi-model engine design (Graph, Vector, Document, Time-Series).

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