Senior Software Engineer

Salesfinity; San Francisco (CA); Remote; USD 150,000 - 250,000; Full time

Job summary

Salesfinity is seeking a Senior Software Engineer to build AI-powered go-to-market solutions. The role involves designing and launching product features, scaling systems, and mentoring team members. Ideal candidates have strong expertise in TypeScript, AWS, and a DevOps mindset, with a focus on collaboration and accountability.

Benefits

Remote-first with async flexibility

Competitive salary + early-stage equity

Home-office stipend and new-hardware budget

Annual learning allowance

Culture of candor and kindness

Qualifications

• 4+ years building production web/SaaS products.
• Proven ownership of cloud-native systems on AWS.
• Strong DevOps mindset with automated testing and CI/CD.

Responsibilities

• Design, build, and release features end-to-end.
• Scale event-driven architecture for thousands of concurrent calls.
• Champion DevOps best practices to maintain high uptime.

Skills

TypeScript

AWS

DevOps

MongoDB

Communication

Job description

2 days ago Be among the first 25 applicants

Build the future of AI-powered go-to-market with Salesfinity

Why Salesfinity?

Build the future of AI-powered go-to-market with Salesfinity

Why Salesfinity?

Salesfinity is rewriting how revenue teams prospect, call, and follow up. Our AI Parallel Dialer, built on NestJS and AWS, is already giving SDRs 5× more live conversations every morning—and we’re just warming up. Join a fast-growing crew that ships weekly, obsesses over customer outcomes, and believes the best products come from small, trusted teams who own everything they touch.

What you’ll own

• Ship product, not tickets. Design, build, and release features end-to-end across our TypeScript/NestJS back-end and AWS infrastructure.
• Scale what’s working. Harden our event-driven architecture to handle thousands of concurrent calls and real-time AI workflows.
• Automate and observe. Champion DevOps best practices—IaC, CI/CD, metrics, and on-call—to keep releases boring and uptime boringly high.
• Influence the roadmap. Work directly with founders, design, and GTM leads to turn ambiguous ideas into delightful product increments.
• Mentor & multiply. Raise the technical bar through thoughtful code reviews, pairing, and sharing the “why,” not just the “how.”

Must-have experience

• 4+ years building production web / SaaS products, with deep expertise in TypeScript and modern back-end patterns (microservices, event queues, etc.).
• Proven ownership of cloud-native systems on AWS (Lambda, ECS/Fargate, SQS/SNS, DynamoDB, CloudFormation/Terraform, or similar).
• Strong DevOps mindset—automated testing, CI/CD pipelines, metrics, incident response, “you build it, you run it.”
• Real-world MongoDB (or other NoSQL) data-modeling and performance tuning.
• Track record of working in small, fast, trust-based teams where autonomy and accountability go hand-in-hand.
• Excellent communication skills—you can explain trade-offs to both engineers and non-tech stakeholders.

Bonus points

• Hands-on with NestJS, WebRTC, telephony, or AI/ML workloads.
• Experience scaling high-throughput real-time systems (calls, chats, streaming).
• Past startup or green-field product experience where you wore multiple hats.

What success looks like after 12 months

• You’ve designed and launched at least two major product modules that customers rave about.
• Deployment frequency is up, incident count is down, and observability dashboards make issues obvious before users notice.
• The engineering team looks to you for architectural direction and mentoring.
• You feel real ownership—celebrating wins with GTM, jumping on customer calls, and shaping Salesfinity’s technical vision.

Perks & practicalities

• Remote-first with async flexibility;
• Competitive salary + early-stage equity.
• Home-office stipend, new-hardware budget, and annual learning allowance.
• A culture of candor, kindness, and bias-for-action.

Ready to build something bigger than yourself?

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Information Technology

• Industries

  Technology, Information and Internet

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