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Salary
≈ $131k – $243k per year (Estimated)
Location
In office (San Diego)
Seniority
Senior · 8+ years exp
Visa
H-1B filings in 12 months: 7 · for this role: 6

Confirmed on the employer's own hiring board on Nov 2, 2026. First seen by Alion on Jul 15, 2025. MergeAPI scores D on the Alion truth index.

Overview
Company
Impact
Profile match
MergeAPI is a pre-launch email marketing service for software developers that lets web applications send bulk marketing email using the same templates they already use, such as Jinja2, ERB and Handlebars. The product promises unsubscribe management, audience segmentation for marketing teams and webhooks that call back to customer servers to fetch fresh user data or interrupt sends, and its site still shows it as launching soon with access by contact only. No real hiring is attributable to MergeAPI itself: the job board linked to this record is a Greenhouse integration sandbox filled with placeholder and test postings.

Instawork’s vision is to create economic opportunities for local businesses and skilled hourly workers in communities around the world. With an AI-first approach, we’re supercharging the leading online labor marketplace and looking for exceptional talent to help us build the future of hourly work. Backed by world-class investors like Benchmark, Spark Capital, Craft Ventures, Greylock, Y Combinator, and more, we want you to help us continue to scale quickly and make an even greater impact.

We are seeking a *Senior Software Engineer - E4* to act as a senior technical leader with a full-stack focus. In this role, you will solve complex technical challenges, provide technical guidance, and shape the architectural vision that spans multiple teams and impacts the broader organisation.

Who You Are:

* 8+ years of experience building and shipping scalable web and mobile applications with a strong full-stack background.

* Proven expertise in system design, distributed systems, and modern software architecture with the ability to deliver in a fast-paced environment.

* While experience with our stack (Python/Django, Celery, MySQL, Redis, ElasticSearch, React, React Native) is preferred, it’s not mandatory.

* Strong communication & collaboration with product and design teams to create user-centric and technically sound products.

* Passionate about AI and its potential to transform software development and products with AI integration, automation, or tooling. Hands-on experience is a strong plus.

* Experience mentoring and providing technical guidance to others

What You'll Do:

* Design and architect scalable, high-impact solutions for large and complex projects.

* Collaborate closely with cross-functional teams to prioritise and execute on the highest ROI projects and deliver at aggressive timelines.

* Provide technical leadership and mentorship to senior and junior engineers.

* Drive strategic technical decisions and architecture reviews that influence cross-team initiatives and long-term product vision.

* Champion the adoption and integration of AI to enhance development workflows, automate routine tasks, and innovate product capabilities.

* Maintain high standards of code quality, reviews, technical feedback, and documentation.

* Maintain peak team productivity by juggling multiple priorities in a fast-paced environment.

Why Join Instawork?

Everyone at Instawork works across the stack. You’ll have the opportunity to work on backend systems at scale, build frontend user experiences, and collaborate with Product & Business to make the product meaningful.

We work hard and we work fast. We err on the side of being bold and embrace + celebrate failure, because we’d rather make bets on great features at the expense of shipping some bad ones.

You will be at the forefront of AI adoption in software development and product innovation. We encourage everyone to learn and harness AI’s potential to drive personal and professional growth.

Perks:

  • Free snacks
  • Health Insurance
  • Personal Insurance
  • Flexible Hours
  • Maternity/Paternity Leave
  • Broadband Reimbursement

Our Values 

  • Empathy, Trust & Candor

    We put ourselves in the shoes of our colleagues and customers and don’t shy away from uncomfortable conversations, instead building trust through honest and direct feedback.

  • Bias for Action

    We practice high-velocity decision-making, clear-eyed that we often operate with incomplete information. Growing quickly means it’s OK to be wrong, so long as we learn from our mistakes and course correct!

  • Always Be Learning

    We’re a curious bunch, and with AI transforming our workplace we encourage everyone to learn from each other, compounding our knowledge and experience to help us change an entire industry.

  • Act Like an Owner

    We work long, hard, and smart, building products that delight our users and drive growth. Your ability to impact Instawork is limited only by your courage and conviction, not your job description.

About Instawork

Founded in 2015, Instawork  is the nation’s leading online labor marketplace for food services, hospitality, light industry, and logistics, connecting more than 7M skilled workers with local restaurants, hotels, warehouses, stadiums, and more. Our AI-powered platform serves thousands of businesses across more than 50 major markets in the United States and Canada. We're not just helping fill shifts, we're supporting local economies-and we're just getting started!

Instawork has been featured by CBS News, The Wall Street Journal, The Washington Post, and the Associated Press. Forbes included us on their Next Billion Dollar Startups list; RetailTech Breakthrough named us Workforce Hiring Solution of the Year for 2025; and Inc. 5000 recognized us as one of the country's top 10% fastest-growing companies two years in a row. But what matters most is our impact. We're solving real problems for real people, and we’re doing it at scale.

Join our team to help us build something that matters! We’re looking for superstars who want to help us shape the future of work. With hubs in San Francisco, Bangalore, and Chicago, city offices in New York, Phoenix, and Singapore, we're back to working together in-person five days a week because we believe the best ideas happen when great people collaborate face-to-face. We also value diverse perspectives and encourage applications from candidates of all backgrounds.

Ready to make an impact? Learn more at www.instawork.com/about.

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