Senior java developer (contract) Jobs

Senior Platform Engineer
Scalar —British Columbia
- $150,000–$250,000 a year
- Full-time
- Remote
- Java
- SQL
- APIs
- Paid time off
Quick apply
10d
Lead Java Platform Engineer (Payments Processing) - Senior Vice President
Citi —Mississauga, ON
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- Full-time
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- Oracle
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Senior Application Developer (Acting/Contract)
LCBO —Queens, PE
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Intermediate or Senior Software Developer
Ultra Maritime —Dartmouth, NS
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- Microsoft Word
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BMO Financial Group —Toronto, ON
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Treasure AI —Vancouver, BC
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- Night shift
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- Disability insurance
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Maplesoft Group —Guelph, ON
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Magnet Forensics —Waterloo, ON
- $125,000–$175,000 a year
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Senior ISTAR Software Engineer
General Dynamics Mission Systems - Canada —Nepean, ON
- $85,000–$100,000 a year
- Full-time
- Hybrid work
- Computer Science
- Engineering
- Java
- Dental care
- Tuition reimbursement
Quick apply
Senior Software Engineer (JAVA)
Behavox —Ottawa, ON
- Remote
- Azure
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Quick apply
3d
Senior Software Engineer - API & MCP Platform
ZoomInfo Technologies LLC —Toronto, ON
- $140,000–$200,000 a year
- Remote
- Azure
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1d
RQ09842 - Sr. Software Developer
Source Code —Toronto, ON
- Full-time
- Azure
- Oracle
- DevOps
Quick apply
Big Data Senior Developer, Marketing & Advertising Data (French Services) (Telework/Hybrid)
CBC/Radio-Canada —Quebec City, QC
- Full-time
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Sr AI/ML Software Developer
NAVBLUE, Inc. —Waterloo, ON
- Full-time
- Hybrid work
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- Java
- Flexible schedule
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RQ09408 - Sr. Software Developer
Source Code —Toronto, ON
- Full-time
- Oracle
- Java
- SQL
Quick apply
RQ10475 - Sr. Software Developer
Source Code —Toronto, ON
- $59.48–$89.21 an hour
- Full-time
- Microsoft Access
- Azure
- Oracle
Quick apply
14d
Sr. Staff Android Engineer Infotainment Software
Rivian and Volkswagen Group Technologies —Vancouver, BC
- $174,200–$230,880 a year
- Full-time
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- Maintenance
RQ11169 - Sr. DevOPS/Cloud Engineer
Source Code —Toronto, ON
- $72.30–$108.45 an hour
- Full-time
- Azure
- DevOps
- Java
Quick apply
RQ00638 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- $76.97–$92.36 an hour
- Full-time
- Hybrid work
- Java
- APIs
- In-person
Quick apply

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Senior Platform Engineer

Scalar -
British Columbia

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Job details

Full-time
$150,000–$250,000 a year
10 days ago

Qualifications

Go
MCP
Git
Google Cloud Platform
MongoDB
Java
SQL
PHP
PostgreSQL
Ruby
GitHub
APIs
TypeScript
Python

Full job description

About Scalar:

Building on a great API is one of the best feelings in software — every interface you want is right there, and it all just works. Building on a bad one is the opposite: out-of-date docs, no SDK in your language, no MCP server. We started Scalar to fix that.

We're a small team (around ten engineers and designers) who wear a lot of hats and obsess over our craft. We think every company deserves Stripe-level docs, SDKs, and MCP servers from day zero — not just the ones with a platform team to build them. Open-source is in our DNA: our whole team contributes to and maintains repositories across the API ecosystem, including the standards everyone relies on, like OpenAPI.

We keep things lean and move without layers of process — engineers pick up problems, talk to each other, and ship. We're looking for owners with high agency: people who see what needs doing and do it. If you do your best work with a lot of autonomy and very little ego, you'll feel at home here.

The role

You'll own the platform that every other Scalar product runs on — the services, infrastructure, and internal tooling behind Docs, SDKs, the API Client, and Agent Scalar. This is one of the most load-bearing roles on the team: when you make the platform faster and more reliable, everyone ships faster.

Our infrastructure is real software, not config soup. We run a TypeScript monorepo on GCP, and our infrastructure-as-code is Pulumi written in TypeScript — so platform work here is engineering, not just YAML. You'll get deep into the existing system quickly and make it your own.

What you'll work on

Docs — the documentation platform: Markdown/MDX, OpenAPI and AsyncAPI references, two-way Git sync, and AI/MCP chat, owned from backend to UI
SDK generation — turning a customer's OpenAPI document into type-safe client libraries across TypeScript, Python, Go, PHP, Java, and Ruby, with code samples and automated GitHub sync
The API Client — our open-source, offline-first Postman alternative, built on open standards and shipping across macOS, Windows, and Linux
Agent Scalar — secure MCP servers and AI features for chatting with APIs, built on the Vercel AI SDK, the MCP SDK, and Vertex AI
Our hybrid compute model: Cloud Run for most backend services, plus multi-region Compute Engine managed instance groups for the stateful, high-throughput ones (hosted doc serving, realtime, collaborative editing)
Infrastructure-as-code in Pulumi (TypeScript) — provisioning, secrets, networking, and the GCP services underneath everything
The eventing and async backbone: Pub/Sub (with dead-letter handling), Cloud Tasks, and Cloud Scheduler
Object storage and artifact pipelines on GCS — cached docs builds, publish artifacts, image uploads, and CDN delivery
The SDK generation pipeline — the service that turns OpenAPI documents into SDKs and keeps them synced to GitHub
Reliability, performance, and autoscaling as usage grows, across both Cloud Run and regional instance groups
Internal tooling the whole team depends on: our in-house CLI toolkit, per-service deploy pipelines, GitHub Actions CI, and our DB-backed feature-flag system
Observability and operational health — Sentry, structured logging (pino Better Stack), and the analytics path into BigQuery

You might be a fit if

You've owned production infrastructure at a startup or small team and liked the breadth of it
You're comfortable being the person who understands how things actually work, end to end
You can go deep on a TypeScript-heavy stack — and you like that our infra is written in TypeScript too
You've run real services on a cloud provider (we're on GCP) and understand the trade-offs between serverless and long-lived VMs
You make decisions and communicate them clearly without waiting to be told what to do
You'd rather collaborate to the right answer than win the argument, and you operate with a high level of kindness

Nice to have

Depth in GCP specifically — Cloud Run, Compute Engine, Pub/Sub, Cloud SQL, GCS, Secret Manager, Artifact Registry
Experience with Pulumi (or IaC in a real programming language rather than HCL)
Multi-region deployment, autoscaling, and rolling-update experience
A track record of building internal developer tooling that makes a team faster
Comfort across polyglot persistence — we run MongoDB as our primary store alongside purpose-specific PostgreSQL databases (including pgvector)
An in-house-first instinct — we build our own clients and tooling and work hard to reduce external dependencies
A background in developer tools or APIs, and familiarity with OpenAPI

Where we work

Remote. Most of the team overlaps with US time zones (PT–ET), and we prefer candidates in the US or Western Canada for that overlap. If you're a strong fit in a European time zone and can make the overlap work, apply anyway and say so.

We're fully remote and offer flexible, unlimited time off. We believe prioritizing the team's well-being makes the work better and more meaningful.

Other Notes:

While the role will involve a significant portion of backend service management, the candidate will also be expected to contribute to the frontend and may be asked to lead the development of new features in either space.
We are a small team of 10 developers and wear many hats. We expect everyone to pitch in and help out where needed.
We are open to both fixed-term contract and full-time permanent positions. Compensation Range: $150-250k (CAD)/$105-180 (USD) based on experience

Compensation Range: CA$150K - CA$250K

Quick apply

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