Develop and maintain backend functionality and integrate it with the frontend.

Implement new features, optimize existing functionality, and fix bugs.

Work together with other developers to deliver high-quality results

Daily at 15:30 CET and weekly retrospective

Montrose Software supports one of the largest North American banks in enhancing and maintaining its financial libraries and applications. The bank serves over 17 million clients worldwide, employs more than 86,000 people, and offers a broad range of services including personal and commercial banking, wealth management, insurance, investor services, and capital markets products.

Within this engagement, we are part of the structured rates products team, responsible for developing analytics services that support the pricing and initial valuation of financial instruments used across the bank’s systems and web-based applications. The solution is built using a microservices architecture, with communication handled via the Solace messaging system (pub/sub architecture). All microservices are deployed on the bank’s own Kubernetes cluster and are used by traders for the initial valuation of financial products before they are traded.

Experience in a quantitative finance environment

Excellent knowledge of Python programming language with type hinting

Large codebases, with hands on experience

Ability to use Git version control system

Experience leveraging AI agents for software development

Our team develops and evolves infrastructure services that orchestrate large-scale analytic price and risk computations across a wide range of financial instruments. These calculations are distributed over thousands of computation engines, enabling both high-throughput End-of-Day batch processing and low-latency intraday streaming analytics.

The core analytic engine is implemented in C++, while the surrounding orchestration services are written in Java (legacy) and Python. We’re transitioning our environment from Windows-based virtual machines to containerized deployments on Kubernetes and Linux. Communication between services is primarily handled via Solace messaging and REST APIs.

A major focus of our work is ensuring reliability and performance in a complex distributed system- including extensive debugging, monitoring, and log analysis to identify and resolve issues across multiple services and environments.

3 (Montrose) + 3 on the client’s side, including developers (4) and QAs (2)

4 short biweekly backlog refinement sessions

Strong software engineering or math background

use AI agents for development ( e.g. Microsoft Copilot)

Familiar with containerization and Kubernetes

Building and optimizing services for pricing and risk calculation

Designing, developing, and maintaining backend services in C++ and Python

Participating in code reviews, discussing technical improvements, and sharing best practices

Collaborating with developers across Poland, UK and Canada

Working with SQL Server, Linux, and Solace (Pub/Sub model)

Using GitHub, Jira, and Jenkins for CI/CD and task management

 one of the  premier academic medical centers based in New York City. The Hospital is focused on ​​patient care, education, and research. The main priority of our client is to meet the individual needs of their patients.

Montrose's main goal is to help with rebuilding the current system’s architecture, but also implement a data update tool for internal use that is integrated with their ticketing system.

 daily check-ins and weekly discussions with internal operation groups that are part of the product's integration and decision making process.

Develop, maintain, and troubleshoot complex C# and SQL Server applications, including multithreaded applications

Design, develop and maintain SQL Server database schemas, tables, views, functions, and stored procedures

Participate in the full software development life cycle from planning and design to implementation and maintenance

Write clean, maintainable, and efficient code that adheres to industry best practices and coding standards

Collaborate with team members, product owners, and stakeholders to ensure project objectives and deliverables are met in a timely fashion

Participate in code reviews, testing, and deployment

Work with the GIT version control system to manage code repositories, merges, and branches

Be familiar with Control-M or any other job scheduler

Troubleshoot and debug issues as they arise, and ensure that they are resolved in a timely manner

Stay up-to-date with the latest technologies and industry trends related to C# and SQL Server development

Bachelor's degree in Computer Science or a related field

3+ years of experience in C# and SQL Server development

Strong knowledge of SQL Server database design and development

Familiarity with GIT version control and Control-M

Strong problem-solving skills and ability to think critically

Excellent written and verbal communication skills

Ability to work effectively in a team environment

Interesting, challenging and exciting work with international teams

Lunches from Kraków's restaurants that are delivered both to the office and homes( or a refund of the budget allocated for it)

Kitchen full of food, drinks, fruit, and snacks

The chillout area incudes comfortable bean bags, therapy balls, PlayStation 4 or Nintendo Switch + games stretching area and pull-up bar

Our B2B SaaS platform helps small and mid-sized companies—especially software houses—manage their daily operations in one place. It keeps track of clients and contracts, project details and team members, invoicing, employee records and salaries, contract changes, and vacation requests, making it easier to plan work, organize resources, and stay on top of everything.

5+ years of experience in C# and SQL Server development

You are a student of Information Technology, or similar faculty (at least 2nd year of studies),

Knowledge of at least one programming language,

Knowledge of fundamental algorithms and data structures,

You would like to learn new skills/technologies,

Montrosesoftware.com updates (~70% of the time)

We’re in the middle of a major redesign. You will join the team to deliver the updated version of the website.

Technical assistance for the office manager (~30% of the time)

Various tasks that need some technical knowledge, like preparing computers for new employees, comparing pieces of equipment that we want to buy (e.g. screens) etc.

Lunches from Kraków's restaurants that are delivered both to the office and homes(or a refund of the budget allocated for it)

Kitchen full of food, drinks, fruits, and snacks

Chillout area including comfortable bean bags, therapy balls, PlayStation 4 or Nintendo Switch + games stretching area and pull-up bar

Collaborating with developers on real projects

Working as a member of an agile software team

Montrose Software invites all aspiring Software Testers to apply for a paid Internship with an International IT Company. 

 is designed for beginners, so no prior software testing experience is required, though it is a plus. You will gain hands-on experience working on real-life projects in an Agile team, focusing on testing internal company projects. Our experienced Testers will teach you everything you need to know from scratch—just bring your interest in the field and a willingness to learn. 

We are offering to extend the internship period into a regular position, with the possibility of working with international teams.

Willingness to learn new skills/technologies

Let's grow together!

Python Developer (+Docker)

C++ Developer

C# Developer

Software Tester - Paid Internship

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Perks and benefits

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