Senior Software Engineer (Node.js/TypeScript)

OANDA Poland sp. z o.o.; Kraków; On-site; PLN 240,000 - 360,000; Full time

Job summary

OANDA Poland sp. z o.o. is seeking a Senior Software Engineer to build scalable, low-latency TypeScript/Node.js microservices powering our trading platform.

You will work on real-time financial APIs, live price streaming, and order execution within a cloud-native, monorepo-driven environment. Strong TS skills and fintech experience preferred.

Qualifications

• Production experience with Node.js microservices (Node 18+, ideally Node 22).
• Strong TypeScript skills.
• Experience designing and operating real‑time or event‑driven systems (Kafka, Redis, SSE, WebSockets, or similar).
• Practical experience with metrics, monitoring, and observability (Prometheus, Grafana, or equivalent).
• Experience with GCP or another major cloud platform (GKE, Cloud Run, Artifact Registry).
• Familiarity with CI/CD pipelines and automated release workflows (semantic-release, CircleCI, or equivalent).
• Comfortable working in a monorepo with shared internal packages and versioned integrations.
• Practical knowledge of relational databases and SQL (querying, schema design, indexing).

Responsibilities

• Design and implement low-latency APIs using Node.js, TypeScript, and GCP.
• Work with real-time data pipelines built on Kafka, Redis, ZeroMQ, and SSE.
• Write reusable, testable code in a TypeScript monorepo with Lerna.
• Monitor performance with Prometheus and Grafana.
• Contribute to architecture decisions and cross-team initiatives.
• Onboard to the microservices architecture and deploy to production within a month.
• Review code and raise engineering quality across the team.

Skills

Node.js microservices

TypeScript

Real-time systems

GCP

CI/CD pipelines

Monorepo

SQL databases

Tools

Kafka

Redis

ZeroMQ

SSE

WebSockets

GKE

Cloud Run

Artifact Registry

Job description

Fancy helping to shape the future of FinTech? We have always been innovators. In 1996 we were the first company to share exchange rate information, free of charge on the internet. Today, we are a world leading online trading group. Join us to: Help build the future of online trading Be part of a culture driven by integrity and global impact Become part of an award-winning company - check out our full list of awards here We are only as good as our people. Luckily, our people are the best. Join us!

How do we work?

We're looking for a Senior Software Engineer experienced in building scalable, low-latency TypeScript/Node.js microservices that power our next-generation Trading Platform. You'll be joining a team of engineers developing real-time financial APIs - from live price streaming and order execution to portfolio management - running at scale on Google Cloud Platform. We are a highly agile group of people working closely together towards the same goal of providing the best client experience possible. The team consists of engineers working from multiple countries. We build and own a suite of microservices that form the backbone of OANDA's Universal Platform - a modern, cloud-native trading API layer. We believe that our experience, passion, and industry knowledge will ensure OANDA's Trading Platform success and the prosperity of our customers. This role is available on a B2B contract basis.

• Design and implement low-latency, high-availability APIs using Node.js 22, TypeScript, Koa, and GCP (GKE, Cloud Run, Artifact Registry)
• Work with real-time data pipelines built on Kafka, Redis, ZeroMQ, and SSE streaming
• Write reusable, testable, and maintainable code across a TypeScript monorepo with Lerna
• Monitor and improve service performance using Prometheus metrics and Grafana dashboards
• Leverage AI-assisted coding tools (Claude Code, Cursor) as a standard part of your daily engineering workflow
• Lead proof‑of‑concept efforts for candidate architectures and contribute to architectural decisions
• Share knowledge, review colleagues' code, and raise the bar for engineering quality across the team
• Contribute to all stages of the software development lifecycle
• Onboard, understand our microservices architecture, and deploy your first code to production within your first month.
• Take full ownership of feature development, contribute to architectural improvements, and drive cross‑team technical initiatives.

What skillset do you need to be successful in this role?

• Production experience with Node.js microservices (Node 18+, ideally Node 22)
• Strong TypeScript skills
• Experience designing and operating real‑time or event‑driven systems (Kafka, Redis, SSE, WebSockets, or similar)
• Practical experience with metrics, monitoring, and observability (Prometheus, Grafana, or equivalent)
• Experience with GCP or another major cloud platform (GKE, Cloud Run, Artifact Registry)
• Familiarity with CI/CD pipelines and automated release workflows (semantic-release, CircleCI, or equivalent)
• Comfortable working in a monorepo with shared internal packages and versioned integrations
• Practical knowledge of relational databases and SQL (querying, schema design, indexing)

Nice to have:

• Experience with financial market data (pricing, order execution, portfolio management)
• Experience with AI‑assisted development tooling (Claude Code, Cursor)
• Background working with OpenAPI specifications and contract‑first API design

At OANDA, to help us efficiently process applications, we use AI-driven tools to help source and rank candidates based on professional experience and skills. While these tools provide recommendations, our recruitment process remains human-centric: all final shortlisting and hiring decisions are made by OANDA team. You have the right to request a human review of your application. OANDA Global Corporation is a diverse and global team with offices around the world. We value the unique skills and experiences each individual brings to OANDA. We are committed to creating and sustaining a collegial work environment in which all individuals are treated with dignity and respect and one which reflects the diversity of the community in which we operate. We provide an inclusive and accessible environment for everyone. Candidates selected for an interview will be contacted directly. If you require accommodation during the recruitment and selection process, please let us know. We will work with you to provide as seamless a recruitment experience as possible.

Learn more about our culture here.

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Make your first step toward a positive change in your career with OANDA OANDA aims to transform all aspects of how the world interacts with currencies, whether that be trading or utilizing currency data and information. We’ll do this our way – connecting and collaborating with the best and most innovative to grow quickly and globally. We strive to do more than just our jobs, focus our actions on collective goals and dare to seek out innovation and creativity. All this to continue our obsession with providing the best experience for our customers. Innovation has been at the heart of everything we do! From our roots in 1997 providing free currency exchange information over the internet to launching an award-winning global trading business. We work together to drive the future of currency data solutions and trading technology. Our customers can invest in around 200 financial instruments including currencies, shares (over 1300) and commodities leveraging intelligent support and the newest technologies. What is more, we are now offering a batch of popular cryptocurrencies in the US! - OANDA is now a major global player. We put our clients at the heart of our innovation and services, which has earned us some of the most recognized awards in the industry. Most Trusted Broker, Compare Forex Brokers’ Awards, 2025 Best in Class for Mobile Trading Apps, ForexBrokers.com Annual Awards, 2025 Best Forex/CFD Broker in AMER, TradingView Broker Awards, 2024 Broker of the Year 2023, TradingView Broker Awards, 2023