Senior Software Engineer - Full-Stack JS (Contract)

Position Overview

• Location Type: Remote
• Job Type: Contract
• Seniority: Senior Software Engineer
• Specialization: Full-Stack JavaScript

Able is a growing company that has evolved from an engineering hub for early-stage startups to a trusted partner for Venture Capital and Private Equity firms. In its latest phase, Able is leveraging applied AI to accelerate the software development lifecycle, delivering significant value to partners by increasing the capacity of their product organizations.

This role involves playing a central part in a complex, enterprise-scale project with fast-moving delivery needs. The ideal candidate will be experienced in the JavaScript ecosystem, comfortable with both frontend and backend development, and knowledgeable about scaling applications within modern architectures (serverless, microservices). Prior experience leading technical efforts and navigating ambiguity autonomously is highly valued. This position is suited for individuals who enjoy building pragmatic solutions, balancing speed and reliability, and delivering enterprise-ready systems in fast-paced environments.

Requirements

• 10+ years of professional experience in full-stack JavaScript development.
• Experience leading engineering efforts or serving as a tech lead on complex, high-scale projects.
• Proven track record of designing scalable systems (microservices, distributed architecture).
• Experience integrating payment systems (e.g., Stripe, PayPal) with strong security practices.
• Deep understanding of browser rendering performance and frontend optimization.
• Strong grasp of data modeling using PostgreSQL.
• Familiarity with NoSQL/Redis where appropriate.
• Good to have: Experience with AI/ML platforms, multi-tenant applications, or caching/queueing layers (e.g., Redis, RabbitMQ).

Responsibilities

• Lead feature development from conception to deployment, collaborating with product and design teams.
• Drive technical decisions and contribute to shaping the architecture of an AI-enabled platform.
• Translate product requirements into reliable and scalable implementations across the full stack.
• Operate with a high degree of autonomy, moving quickly from concept to shipping while maintaining code quality.
• Integrate external services, including payments and identity providers, with a focus on security and performance.
• Profile and tune application performance to ensure smooth experiences at scale.
• Contribute to planning, estimations, and setting realistic delivery expectations.
• Champion clean, testable code and provide support through thoughtful code reviews.
• Communicate proactively in a distributed environment and contribute to a culture of continuous improvement.

Our Story

• Founded: 2013
• Chapter 1 (2013-2019): Product and engineering hub for early-stage startups, operating as a hybrid in-house/external shared services model.
• Chapter 2 (2019-2023): Expanded vision, growing beyond the initial partner base and building new relationships.
• Chapter 3 (2023 onwards): Increased ambition, focusing on Venture Capital and Private Equity firms seeking trusted product and technology solutions for their portfolios.
• Chapter 3a (Current Phase): Aligned with mission and vision, accelerated by applied AI to deliver software significantly faster than legacy techniques, increasing partner product organization capacity.