Golang Backend Engineer at Salesforge Ā· Remote only Ā· 1 - 10 years Ā· ā¹20L - ā¹50L / yr Ā· Raised funding Ā· Remote only Ā· Posted 16 Oct 2026
Most sales tools help you send emails. Weāre building something different.
At Salesforge, weāre creating autonomous AI agents that can:
Find the right prospects
Generate highly personalized outreach
Run conversations
And book meetings
All without human involvement.
Why this is interesting
A lot of AI products stop at āgenerate text.ā Weāre focused on outcomes.
That means solving problems like:
How do you generate messages that actually get replies?
How do you evaluate and improve agent performance over time?
How do you orchestrate millions of AI-driven interactions reliably?
How do you combine structured data + LLMs in a way that scales?
If you enjoy working at the intersection of systems + AI + real-world feedback loops, this will feel like a playground.
What youāll be working on
You wonāt be maintaining legacy systems.
Youāll be:
Designing and building core backend systems that power our AI agents
Creating APIs and services that handle high-scale, real-time workflows
Working with queues (Kafka / SQS / RabbitMQ) to orchestrate async systems
Thinking deeply about performance, cost, and reliability in AI pipelines
Shipping features end-to-end with a small, senior team
The team
Weāre a small group of experienced builders. We move quickly, care about quality, and avoid unnecessary process.
No layers of management.
No long planning cycles.
Lots of ownership and autonomy.
What weāre looking for
5+ years of backend engineering experience
Strong system design fundamentals
Experience with distributed systems and async processing
Familiarity with relational and/or document databases
Clear communicator, low ego, high ownership
Why join
Youāll work on a product where the output is measurable (meetings booked, revenue generated)
Youāll have real ownership from day one
Youāll be early in building a new category (AI sales agents)
Youāll grow as fast as we do

About Salesforge
About
Salesforge is building the operating system for modern outbound sales.
Instead of companies stitching together dozens of disconnected tools for prospecting, email infrastructure, deliverability, outreach, LinkedIn, AI and reply management, we're building the entire stack ourselves ā as one connected ecosystem.
The Forge Stack covers the complete journey from identifying a potential customer to booking a meeting:
Leadsforge is our AI-powered prospecting engine, searching across hundreds of millions of contacts to discover, enrich and qualify the right people and companies.
Mailforge provides distributed email infrastructure at scale, while Infraforge gives sophisticated senders their own private infrastructure and dedicated IPs.
Primeforge provisions and manages Google Workspace and Microsoft 365 mailboxes at scale.
Warmforge is our deliverability layer ā warming mailboxes, monitoring sender reputation, testing inbox placement and helping keep outbound infrastructure healthy.
Salesforge is the command center where everything comes together. Teams build sophisticated multichannel sequences across email and LinkedIn, personalize outreach with AI, manage thousands of senders, handle conversations and turn replies into pipeline.
And on top of the entire stack sits Agent Frank, our autonomous AI SDR. Frank can find prospects, research them, create personalized outreach, follow up, manage conversations and work toward booking meetings ā using the infrastructure and products underneath him.
We're not building another SaaS dashboard.
We're building a deeply interconnected system spanning large-scale email infrastructure, distributed systems, data enrichment, search, deliverability, automation, multichannel communication and autonomous AI agents.
For engineers, that means working on problems where software interacts with millions of real-world entities, external providers and constantly changing systems ā and where reliability, scale and speed actually matter.
If you want to build products where AI meets serious infrastructure, and see what you build used directly to generate revenue for companies around the world, Salesforge is a pretty exciting place to do it.
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- 2ā4 years of professional backend engineering experience, with strong hands-on Python skills.
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About the Role:
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Self-Repair Loop
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Treat evals the way engineers treat automated testing: versioned, automated, and tracked over time.
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Defend against prompt injection from user content and fetched web content.
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Define what the agent's tools may and may not do in collaboration with the platform team.
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Run code reviews, define engineering conventions for AI work, and raise the engineering bar across the AI team.
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Hands-on Production Ownership of LLM-Powered Systems with Agent Architectures (Mandatory)
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Strong Python Proficiency and Service Development
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Depth Across LLM APIs and Agent Systems
Production experience with at least two of OpenAI, Anthropic Claude, Google Gemini, or open-weight models (vLLM, Ollama, Together).
Production experience with at least one agent framework (LangGraph, CrewAI, AutoGen, LlamaIndex Agents) or hand-rolled equivalent.
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Track record of measurable cost optimisation on production AI features.
Able to speak in specifics: cost per request, savings achieved through caching or model routing, context reduction decisions.
AWS Working Knowledge
Hands-on with EC2, S3, IAM, and Docker.
Comfort with CI/CD workflows and deploying AI services.
Awareness of LLM Security Failure Modes
Familiar with prompt injection patterns, understands that system prompt rules alone are insufficient, and has experience with output validation and content safety in production.
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Applied AI Engineer
About the Role
We are building an AI-powered platform that transforms credit origination by automating manual processes and enabling lenders to underwrite more loans with greater accuracy and lower risk.
We are looking for an experienced Applied AI Engineer to design and build production-grade Agentic AI systems capable of complex, multi-step reasoning across financial data, legal documents, and other unstructured information.
As an early engineering team member, you will take ownership of core AI architecture, multi-agent orchestration, reasoning workflows, evaluation frameworks, and scalable AI infrastructure.
Key Responsibilities
- Design and develop stateful, multi-agent AI systems for complex reasoning and decision-making.
- Build and optimize LLM pipelines using frameworks such as LangChain, DSPy, and GEPA.
- Implement RAG, prompt optimization, memory management, tool integration, and human-in-the-loop workflows.
- Develop AI evaluation frameworks using LLM-as-a-Judge and scenario-based testing.
- Implement AI observability and monitoring to track accuracy, latency, cost, and system performance.
- Build ETL pipelines and work with structured and unstructured data, SQL/NoSQL databases, vector databases, and graph-based data models.
- Integrate external tools and systems using modern agent protocols such as Model Context Protocol (MCP).
- Deploy and maintain AI services on AWS or Azure.
- Implement CI/CD pipelines, containerization, and Infrastructure as Code for reliable production deployments.
Required Qualifications
- 5+ years of professional software development experience in Python or JavaScript.
- Proven experience building and deploying production-level Agentic AI systems or complex LLM reasoning applications.
- Hands-on experience with LangChain and LLMOps, including tools such as Langfuse, Weights & Biases (W&B), or Helicone.
- Strong understanding of LLMs, RAG, prompt engineering, multi-agent orchestration, memory management, and tool calling.
- Experience with DSPy, GEPA, or advanced LLM inference and optimization techniques.
- Strong data engineering fundamentals, including ETL, SQL/NoSQL databases, and vector databases.
- Familiarity with MCP and human-in-the-loop workflows.
- Experience with AWS or Azure and modern DevOps practices, including Docker, CI/CD, and Infrastructure as Code.
Good to Have
- Experience with RLHF or RLAIF.
- Knowledge of model fine-tuning techniques such as LoRA and QLoRA.
- Experience with graph databases and graph-based data models.
- Exposure to financial services, credit underwriting, risk analysis, or document-intensive AI applications.
Why Join Us?
- Work on advanced Agentic AI and complex reasoning systems beyond conventional chatbot applications.
- Build foundational AI architecture and production-grade LLM workflows.
- Take ownership of technical decisions and system design as an early engineering team member.
- Solve challenging problems at the intersection of AI, finance, and intelligent automation.
About PortOne
PortOne is building the reconciliation and data intelligence layer for payments across Korea and international markets. We are a Series B startup backed by Softbank and Hanwa Capital, powering multi-billion dollars in annualised settlement volume for 2,000+ merchants across Korea, Thailand, Singapore, Indonesia, and beyond.
We are building AI-native products for leading brands ā intelligent automation layers on top of complex financial data pipelines. If you want to work at the intersection of fintech, data engineering, and applied AI, this is your role.
Culture and Values
* You will be joining a team that stands for making a difference.
* You will be joining a culture that identifies more with Sports Teams rather than a 9 to 5 workplace.
* Your will have peers who are/have
** Highly Self Driven with A sense of purpose
** High Energy Levels - Building stuff is your sport
** Ownership - Solve customer problems end to end - Customer is your Boss
** Hunger to learn - Highly motivated to keep developing new tech skill sets
Your Work Ethic
* You are an athlete and building apps is your sport.
* Your passion drives you to learn and build stuff and not because your manager tells you to.
* You obsess over correctness ā a bug in a settlement figure or a silent data drop is not acceptable to you.
* You have an eye for detail that most engineers skip past, and you take pride in getting it exactly right.
* Your work ethic is that of an athlete preparing for your next marathon. Your sport drives you and you like being in the zone.
* You are NOT a clockwatcher renting out your time, and NOT have an attitude of "I will do only what is asked for"
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What will you do?
- Build and maintain financial data ingestion pipelines that pull settlement and transaction data from marketplace platforms (Amazon, Shopee, TikTok, Qoo10, Rakuten) on behalf of large brands operating across multiple Asian markets.
- Own reconciliation workflows end-to-end ā from raw marketplace data to verified, merchant-ready settlement reports ā ensuring every figure is correct and every discrepancy is surfaced, not swallowed.
- Design and implement AI-native features that automate financial analysis: agentic triage of settlement mismatches, root-cause detection across large transaction volumes, and intelligent alerting for ops and merchant teams.
- Instrument data quality and health monitoring so that silent failures ā missing records, schema shifts, delayed ingestion ā are caught before they reach the merchant.
- Build APIs and tooling that enable PortOne's ops and merchant success teams to investigate, verify, and close financial discrepancies faster and with more confidence.
- Expand platform coverage by integrating new marketplaces and new report types, working closely with data formats that are often inconsistent, undocumented, or changing without notice.
- Uphold rigorous engineering standards ā correctness in financial data is not negotiable, and you treat edge cases and off-by-one errors with the same seriousness as a production incident.
- Uphold high engineering standards across codebases and processes.
- Collaborate with product, design, infrastructure, and operations stakeholders.
Skills and Experience
* Have ideally 4 to 6 Years of experience shipping high quality products/live features and workflows
*AI-native development ā you build products where AI is a first-class component, not a bolt-on.
* Strong backend engineering foundation ā Go (Preferred), Python, or equivalent; REST/gRPC APIs; database design.
* Understands how to build scalable, resilient, and observable distributed systems.
* Must have built data flows and applications end to end taking full ownership
Preferred Skills and Background
*Prior experience/built apps in golang backend
*Data and data engineering background ā comfortable with data pipelines, ETL/ELT patterns, event-driven architectures, reconciliation logic, or analytical workloads.
*AI agentic development ā experience building or working with agent frameworks, tool-use patterns, LLM orchestration, or automated reasoning pipelines.
Job Overview
Architect and build scalable, high-performance backend systems while working on mission-critical platforms that process real-time market data and portfolio analytics. The role also involves leveraging Generative AI capabilities to enhance data intelligence, automation, and user-facing features, while ensuring regulatory compliance and secure financial transactions.
Key Responsibilities
- Design, develop, and maintain scalable backend services and APIs using NodeJS and Python
- Build event-driven architectures using RabbitMQ and Kafka for real-time data processing
- Develop and manage data pipelines integrating PostgreSQL and BigQuery for analytics and warehousing
- Integrate and deploy Generative AI models (LLMs, embeddings, AI APIs) into backend systems for automation, insights, and intelligent workflows
- Design AI-powered features such as recommendation systems, document processing, or conversational interfaces
- Ensure system reliability, security, and low-latency performance for mission-critical systems
- Lead technical design discussions, conduct code reviews, and mentor junior engineers
- Optimize database queries, implement caching strategies, and improve overall system performance
- Collaborate with cross-functional teams to deliver end-to-end product features
- Implement monitoring, logging, and observability solutions
Required Skills and Qualifications
- 2+ years of professional backend development experience
- Strong expertise in NodeJS and Python for production-grade applications
- Proven experience building RESTful APIs and microservices architectures
- Experience working with Generative AI frameworks/APIs (OpenAI, LangChain, vector databases, prompt engineering)
- Understanding of integrating LLMs into production systems (RAG, embeddings, fine-tuning basics)
- Strong proficiency in PostgreSQL, including query optimization and schema design
- Hands-on experience with RabbitMQ and Kafka
- Experience with BigQuery or similar data warehousing solutions
- Solid understanding of distributed systems, scalability patterns, and high-traffic applications
- Strong knowledge of authentication, authorization, and security best practices
- Experience with Git, CI/CD pipelines, and modern development workflows
- Excellent problem-solving and debugging skills
- Exposure to fintech or financial services, cloud platforms (GCP/AWS/Azure), Docker/Kubernetes, caching tools (Redis/Memcached), and regulatory requirements (KYC, compliance, data privacy) is a plus
Apply directly at: https://wohlig.keka.com/careers/jobdetails/136351
About Orenda
Orenda is a fintech-enabled financial services company founded in 2017 and based in Ahmedabad, Gujarat. We work as a corporate DSA and channel partner for leading banks and NBFCs, helping individuals, professionals, and MSMEs access suitable financial solutions across business loans, personal loans, home loans, loan against property, and professional loans.
At Orenda, we combine financial expertise, technology, and streamlined processes to simplify the lending journey. We are building our own lending-tech platform to improve operational efficiency, strengthen lender and partner integrations, and develop technology-driven solutions that support our evolving business needs.
About the role
We're looking for a Lead Software Engineer who enjoys building as much as designing. You'll shape how our systems are architected, write a good share of the code yourself, and lead a team of 3 to 5 engineers, including AI/ML engineers.
This is a hands-on leadership role, not a pure management or architecture position. Your time will be roughly split like this:
Share of time
Leading the team ~30%
Solution design ~30%
Hands-on coding ~30%
Deployment and infrastructure~10%
What you'll work on
Solution design and architecture
⢠Turning business needs into technical designs that are practical to build and easy to maintain
⢠Making architecture decisions across services, integrations and data flows
⢠Estimating, scoping and planning new features with business and product stakeholders
⢠Shaping the solution design for AI/ML use cases alongside the AI/ML engineers
Engineering and delivery
⢠Writing production code in Python and Node.js
⢠Rolling out new features across our internal and partner-facing platforms, including our CRM and partner portal
⢠Continuously improving existing systems for performance, reliability and code quality
⢠Reviewing code and setting engineering standards for the team
Infrastructure and cloud
⢠Maintaining and upgrading our infrastructure, including a planned move to a major cloud platform
⢠Owning deployments and production stability together with the team
⢠Working with event-driven and messaging systems (NATS today, Kafka planned)
Team leadership
⢠Leading and mentoring a team of 3 to 5 engineers
⢠Planning and prioritising work, unblocking the team, and making sure things ship
⢠Building a culture of ownership, clear documentation and quality
What we're looking for
⢠5 to 8 years of software engineering experience, with hands-on coding in your recent roles
⢠Strong command of Python and Node.js
⢠Proven experience designing and building backend systems and microservices that run in production
⢠Hands-on experience deploying and running workloads on at least one major cloud platform (AWS, Azure or GCP)
⢠Solid working knowledge of PostgreSQL
⢠Experience with messaging or event streaming systems such as NATS, Kafka or RabbitMQ
⢠Experience leading or mentoring a small engineering team
⢠Comfort estimating effort, breaking down features and planning delivery
⢠Enough understanding of AI/ML systems to guide their solution design and integration
⢠Clear communication with both technical and non-technical stakeholders
Good to have
⢠Experience working at a fintech, lending or financial services company
⢠Hands-on experience with Kafka
⢠Experience leading an infrastructure upgrade or cloud migration
⢠Experience building or scaling CRM or partner-facing portal products
Why Join Us?
- Build a growing lending-tech platform: Play a key role in shaping the technology behind a growing financial services business.
- Own technical decisions: Contribute directly to architecture, engineering standards, and technology direction.
- Stay hands-on: Combine solution design and technical leadership with meaningful coding responsibilities.
- Work with emerging technologies: Collaborate with AI/ML engineers and contribute to evolving platform capabilities.
- Lead and grow a team: Mentor engineers and help build a strong engineering culture as the technology function scales.
- Make a measurable impact: Build systems that improve operational efficiency and support business growth.
Weāre seeking a highly skilled, execution-focused Senior Backend Engineer with a minimum of 5 years of experience to join our team. This role demands hands-on expertise in building and scaling distributed systems, strong proficiency in Java, and deep knowledge of cloud-native infrastructure. You will be expected to design robust backend services, optimize performance across storage and caching layers, and enable seamless integrations using modern messaging and CI/CD pipelines.
Youāll be working in a high-scale, high-impact environment where reliability, speed, and efficiency are paramount. If you enjoy solving complex engineering challenges and have a passion for distributed systems, this is the right role for you.
Responsibilitiesā
- Design, develop, and maintain distributed backend systems at scale.
- Write high-performance, production-grade code in Java.
- Architect and optimize storage systems, ensuring efficient query performance and scalable data models.
- Implement caching strategies to reduce latency and improve system throughput.
- Build and manage services leveraging AWS cloud infrastructure.
- Develop resilient messaging pipelines using Kafka (or equivalent) for real-time data processing.
- Define and streamline CI/CD pipelines, ensuring rapid and reliable deployment cycles.
- Collaborate with product managers, frontend engineers, and DevOps to deliver end-to-end solutions.
- Monitor system performance, identify bottlenecks, and apply proactive fixes.
- Drive best practices in software engineering, testing, and code reviews.Ā
Requirementsā
- 5+ years of experience in backend engineering, with deep hands-on coding experience.
- Strong proficiency in Java and familiarity with modern frameworks.
- Proven track record in building scalable distributed systems.
- Hands-on expertise with AWS services (e.g., EC2, S3, Lambda, DynamoDB, RDS).
- Solid understanding of messaging systems like Kafka, RabbitMQ, or similar.
- Strong grasp of query performance optimization and storage system design.
- Experience with caching solutions (Redis, Memcached, etc.).
- Familiarity with CI/CD tools (Jenkins, GitHub Actions, GitLab CI, etc.).
- Excellent problem-solving skills and ability to thrive in fast-paced environments.
- Strong communication and collaboration skills, with a proactive mindset.
Benefitsā
- Best in class salary: We hire only the best, and we pay accordingly.
- Proximity Talks: Meet other designers, engineers, and product geeks ā and learn from experts in the field.
- Keep on learning with a world-class team: Work with the best in the field, challenge yourself constantly, and learn something new every day.
About usā
Proximity is the trusted technology, design, and consulting partner for some of the biggest Sports, Media, and Entertainment companies in the world. Weāre headquartered in San Francisco and have offices in Palo Alto, Dubai, Mumbai, and Bangalore.
Since 2019, Proximity has built high-impact, scalable products used by millions of users every day. Today, we are a global team of engineers, designers, product managers, and experts solving complex problems and building cutting-edge technology at scale.
Role OverviewĀ
We are looking for an AI Engineer to design, build, and ship production AI systems, including agentic AI applications, for enterprise clients. This is a hands-on engineering role: you will write production code, build and evaluate models and agents, and work closely with architects and product teams to take solutions from prototype to scale.Ā
Key ResponsibilitiesĀ
Design and build agentic AI systems: agent workflows, tool/function-calling, memory, and human-in-the-loop patterns. Build and productionise RAG pipelines, prompt-based applications, and LLM integrations across providers. Develop and maintain data and ML pipelines: feature engineering, model training, evaluation, and monitoring. Integrate AI systems with enterprise applications (CRMs, ERPs, ITSM tools) via APIs, events, and MCP-based tool servers. Implement guardrails, prompt-injection defences, and evaluation frameworks to keep AI systems safe and reliable in production.Ā
Write clean, tested, production-grade code and participate actively in code and design reviews.Ā
Collaborate with architects, product managers, and delivery teams to translate requirements into working AI solutions. Troubleshoot and optimise AI systems for accuracy, latency, and cost in production.Ā
Required QualificationsĀ
8ā12 years of hands-on software engineering experience, with a strong, unbroken technical track record. Hands-on experience building and shipping AI/ML systems in production, not just POCs.Ā
Practical experience with agentic AI systems and at least one major agent framework (LangGraph, CrewAI, AutoGen, OpenAI Agents SDK, Bedrock Agents/Strands, or Semantic Kernel).Ā
Experience with LLM/GenAI systems: RAG pipelines, prompt engineering, structured outputs, and tool calling across providers.Ā
Strong Python skills (TypeScript/Node.js a plus), with production-grade testing, CI/CD, and API design practices. Working knowledge of ML fundamentals: model evaluation, feature engineering, and experimentation. Cloud-native experience on AWS and/or Azure: containers, serverless, event backbones, and vector databases. Understanding of LLM safety and reliability practices: guardrails, prompt-injection defences, and observability.Ā















