Senior Go Engineer - Open Source MongoDB Tools (Remote)

Percona; Indonesia; Remote; IDR 2,169,197,396 - 3,253,796,094; Full time

Benefits offered by this job

Flexible work hours

Equipment for remote office

Career development funds

Equity incentive plan

Job summary

Percona is seeking a senior Go engineer for the MongoDB Tools Team, focused on PCSM with opportunities to contribute across PBM. You will work on a fast-moving replica and change-stream based replication engine across replica sets and sharded clusters, while ensuring correctness and performance at scale.

You will also contribute to backup tooling and open-source workflows, with emphasis on high-quality tests, observability, and a strong open-source mindset.

Qualifications

• Strong Go experience in production, with fluency in concurrency: goroutines, channels, context cancellation, worker pools, and backpressure.
• Solid grounding in distributed systems and data consistency.
• Hands-on MongoDB knowledge: change streams, the oplog, resume tokens, replica sets, and sharding.
• Comfort building and operating command-line tools and HTTP APIs, and instrumenting them with metrics and structured logs.
• A habit of writing tests that catch real problems, and comfort working across a mixed toolchain.
• Experience working in the open: Git and pull request workflows, giving and taking code review well, and communicating clearly in writing with contributors you have never met in person.

Responsibilities

• The core replication engine: initial collection cloning followed by continuous change capture over MongoDB Change Streams, with correct handling of resume tokens, ordering, and resumability after failures.
• Correctness and fault tolerance at scale: recover from network drops, primary elections, and restarts without losing or duplicating changes, and reasoning about delivery guarantees.
• Sharded cluster support: replicating across shards, handling chunk migrations and balancer activity, keeping the target consistent.
• Namespace filtering and automatic index management, plus edge cases that show up with DDL, TTL, and index differences between source and target.
• Performance and throughput: parallelizing the clone, applying backpressure, and keeping memory and connection use sane against large clusters with great change volume.
• The CLI and HTTP API that drive and observe a sync, and the metrics and logging that let an operator trust what is happening.
• Consistent backup, restore, and point-in-time recovery across replica sets and sharded clusters, using physical or logical type of the backup.
• Backup storage: integrating with S3, GCS, Azure Blob Storage and remote filesystems, handling throughput and failure modes at scale.
• The pbm-agent and pbm CLI, and the control-collection state in MongoDB that coordinates them across the cluster.
• Working in the open: pull requests, code review, JIRA, and the community forum.
• Release quality: tests, packaging, and the CI and security scanning that gate every change.

Skills

Go production experience

Concurrency

Distributed systems

MongoDB knowledge

Testing / test writing

Open source collaboration

Command-line tools

Tools

Git

Go tooling

Prometheus

golangci-lint

Trivy

deb/rpm packaging

Job description

Percona is seeking a senior Go engineer for the MongoDB Tools Team, focused on PCSM with opportunities to contribute across PBM. You will work on a fast-moving replica and change-stream based replication engine across replica sets and sharded clusters, while ensuring correctness and performance at scale.

You will also contribute to backup tooling and open-source workflows, with emphasis on high-quality tests, observability, and a strong open-source mindset.