NxtWave - Senior Software Developer/Technical Lead - AWS/Python

Senior Developer / Tech Lead
Location : Remote (Head office in Mumbai)
Employment Type : Full-time
Experience : 6+ years
Notice Period : Immediate to 30 days
What You Will Own
Lead backend architecture and implementation for core investment, portfolio, analytics and platform capabilities.
Build and maintain production systems in Python, including APIs, business workflows, integrations, background jobs, webhooks, reconciliation and operational tooling.
Work closely with React Native engineers to define clean API contracts, predictable states, useful error handling and maintainable mobile integrations.
Translate product requirements into technical designs, data models, state machines, service boundaries, implementation plans and test strategies.
Take ownership of difficult production workflows involving payments, mandates, broker or custodian integrations, order lifecycles, asynchronous callbacks, data freshness and reconciliation.
Establish practical engineering standards for code quality, testing, observability, documentation, release discipline and incident response.
Review code consistently and thoughtfully; merge changes when they meet the required quality, safety and maintainability bar.
Mentor junior developers through design reviews, pairing, code reviews, debugging and clear technical feedback.
Lead technical decomposition and delivery for projects across mutual funds, Indian equities, U.S. stocks, wealth aggregation and financial analytics.
Partner with Product, Design, Operations, Compliance and external technology providers to make sound trade-offs between speed, quality, risk and cost.
Improve the developer experience : local setup, environments, CI/CD, test feedback, debugging workflows, documentation and deployment confidence.
Build a security-minded engineering culture appropriate for a fintech product handling sensitive identity, financial and investment data.
Evaluate and apply AI tools and techniques where they create real leverage.
Help define the future engineering organisation, hiring plan, technical roadmap and operating cadence as the company grows.
What We Are Looking For
6+ years of professional software-engineering experience, including meaningful ownership of production backend systems.
Strong Python experience across APIs, services, data models, queues/jobs, integrations and tests.
Strong React Native experience, or enough mobile-platform fluency to lead the backend/mobile contract and review React Native code.
Experience leading or mentoring a team of approximately 10 developers, formally or informally.
A track record of shipping reliable products in a startup, fintech, wealth-tech, payments, brokerage or other high-trust environment.
Strong understanding of relational databases, API design, asynchronous processing, event-driven workflows, caching, queues, webhooks, idempotency and observability.
Solid infrastructure and DevOps experience, preferably on AWS or GCP : CI/CD, infrastructure-as-code, containerisation, secrets management, monitoring, alerting, backups and incident response.
Practical knowledge of fintech security and compliance: access control, encryption, audit trails, data privacy, secure SDLC, vulnerability management and audit readiness.
Strong code-review judgement: you identify correctness, security, performance and reliability risks without blocking progress unnecessarily.
Hands-on AI experience : foundation-model APIs, AI-enabled workflows, retrieval or tool-calling, evaluation and guardrails, or AI-assisted development.
Clear written and verbal communication, a coaching mindset, and high ownership from design through deployment and support.
Strong Differentiators
Built or operated financial products involving money movement, investment orders, portfolios, broker or custodian integrations, market data or reconciliation.
Worked with regulated fintech security, compliance or audit programmes in India or another major financial market.
Led a team through a meaningful scale-up in codebase, traffic, product surface or engineering headcount.
Designed systems that safely handle pending, retryable, failed, duplicate and reconciled states.
Built customer-facing mobile products in React Native alongside Python services.
Hired engineers, established engineering rituals or managed delivery across multiple teams.
Worked in a zero-to-one environment and created structure where it did not yet exist.
(ref:hirist.tech)

Work arrangement
Yes