Senior Tech Developer

Selby Jennings; New York (NY); On-site; USD 140,000 - 180,000; Full time

Job summary

Selby Jennings is seeking a Software Engineer to design, build, and maintain business-critical applications used across multiple teams. This hands-on role partners with engineers and business stakeholders to deliver scalable software and improve internal workflows.

You'll work with a modern stack including Python, FastAPI, React, PostgreSQL, AWS, and Kubernetes to build APIs, UI, and data integrations. This is a collaborative, fast-paced environment that values initiative, quality, and shipping

Qualifications

• 5+ years of production software experience.
• Strong frontend and backend skills with modern tech.
• Experience with Python, APIs, databases, and cloud environments.

Responsibilities

• Build and maintain full-stack applications and internal platforms.
• Develop scalable APIs, backend services, and microservices.
• Create modern, responsive user interfaces.
• Integrate internal and external data sources.
• Participate in architecture, design, testing, and deployment.
• Improve system performance, reliability, and maintainability.
• Contribute to cloud infrastructure and CI/CD initiatives.
• Translate business requirements into technical solutions with stakeholders.

Skills

Full-stack development

Python

APIs

Databases

Cloud platforms

CI/CD

Tools

Docker

Kubernetes

REST APIs

Git

CI/CD tooling

Job description

Our client is a growing investment management firm that leverages technology to support investment, analytics, data, and operational workflows across the business. The technology team plays a central role in developing modern applications and platforms that help drive efficiency, scalability, and better decision-making across the organization.

The Role

The firm is seeking a Software Engineer to help design, build, and maintain business‑critical applications used across multiple teams. This is a highly hands‑on role where you'll work closely with engineers and business stakeholders to develop scalable solutions, improve internal workflows, and contribute to the firm's broader technology initiatives.

Responsibilities include:

• Building and enhancing full‑stack applications and internal platforms
• Developing scalable APIs, backend services, and microservices
• Creating modern, responsive user interfaces
• Integrating internal and external data sources
• Participating in architecture, design, testing, and deployment activities
• Improving system performance, reliability, and maintainability
• Contributing to cloud infrastructure and CI/CD initiatives
• Working closely with stakeholders to translate business requirements into technical solutions

Technology Stack

• Python
• FastAPI
• React
• TypeScript
• PostgreSQL
• SQL
• AWS
• Docker
• Kubernetes
• REST APIs
• Microservices
• Git / CI/CD

Ideal Background

• 5+ Years of experience building and supporting production software applications
• Strong full‑stack engineering skills with modern frontend and backend technologies
• Hands‑on experience with Python, APIs, databases, and cloud environments
• Experience designing scalable, maintainable software solutions
• Financial services, asset management, capital markets, trading, or investment technology experience is a plus

This is an excellent opportunity for an engineer who enjoys building impactful software, working with modern technologies, and contributing to a collaborative, fast‑paced environment.