Backend Software Engineer (Python / Polars) at Stronghold Investment Management

Dallas, Texas, United States

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Not SpecifiedCompensation

Mid-level (3 to 4 years)Experience Level

Full TimeJob Type

UnknownVisa

Financial Services, Real Assets, FintechIndustries

Requirements

5+ years of backend development experience (Python required; Ruby is a plus)
Proven experience working with data-oriented Python frameworks — ideally Polars, but Pandas or similar experience is fine with a willingness to adopt Polars
Solid understanding of API design, distributed systems, and service-to-service communication
Proficiency in relational databases (PostgreSQL, SQL Server) and exposure to NoSQL tools (Redis, Elasticsearch, MongoDB)
Familiarity with Kafka or other message queues
Working knowledge of cloud environments (Azure preferred) and CI/CD pipelines
Strong fundamentals in algorithms, data structures, and system design
Curious, resourceful, and self-directed — someone who can take a technical problem and run with it
Analytical with a bias toward action — you understand the “why” behind what you build
Attentive to detail, with clean coding habits and a pragmatic approach to testing and debugging
Comfortable working in a collaborative environment where clear communication and accountability matter
Genuinely interested in learning and experimenting with newer tools like Polars to improve performance and developer efficiency

Responsibilities

Build and maintain backend services and APIs that power critical internal and external applications
Use Polars and other modern Python data libraries (e.g., PyArrow, NumPy) to optimize data transformations and analytics workloads
Partner closely with senior engineers, data teams, and product stakeholders to translate business logic into scalable, maintainable code
Contribute to architecture discussions and help define how data flows through our platform
Review code thoughtfully and continuously refine development practices for clarity, reliability, and performance
Support our move toward more cloud-native, data-driven systems within Azure

Skills

Python

Polars

PyArrow

NumPy

Ruby on Rails

Kafka

Elasticsearch

PostgreSQL

Redis

Azure

Stronghold Investment Management

Invests in real assets and private markets

About Stronghold Investment Management

Stronghold Investment Management offers a resourceful investing system focused on real assets and private markets, leveraging deep technical expertise and cross-functional collaboration. The company pursues opportunistic investments in energy and natural resources, managing investments through their life cycle using a technology-driven, vertically integrated approach.

3811 Turtle Creek Blvd #1300, Dallas, TX 75219, USAHeadquarters

2016Year Founded

VENTURE_UNKNOWNCompany Stage

Venture CapitalIndustries

51-200Employees